Upgraded to Bullet 2.74. The upgrade introduced a few bugs, which need to be fixed before Blender 2.49.

In particular, the Bullet vehicle seems broken, and some soft-body demos don't work.
No new features or benefits are added yet, but a few improvements are planned before Blender 2.49 release.

Please update the build systems, and add those 3 files:
extern/bullet2/src/BulletCollision/CollisionDispatch/btActivatingCollisionAlgorithm.cpp
extern/bullet2/src/BulletCollision/CollisionDispatch/btGhostObject.cpp
extern/bullet2/src/BulletCollision/CollisionShapes/btConvexPointCloudShape.cpp

I'll watch the Blender mailing list, in case this commit causes some issues.
This commit is contained in:
Erwin Coumans 2009-03-03 03:41:24 +00:00
parent f8ef887880
commit 982a5cc60d
229 changed files with 14283 additions and 8330 deletions

@ -38,37 +38,37 @@ typedef plReal plQuaternion[4];
extern "C" {
#endif
/* Particular physics SDK */
/** Particular physics SDK (C-API) */
PL_DECLARE_HANDLE(plPhysicsSdkHandle);
/* Dynamics world, belonging to some physics SDK */
/** Dynamics world, belonging to some physics SDK (C-API)*/
PL_DECLARE_HANDLE(plDynamicsWorldHandle);
/* Rigid Body that can be part of a Dynamics World */
/** Rigid Body that can be part of a Dynamics World (C-API)*/
PL_DECLARE_HANDLE(plRigidBodyHandle);
/* Collision Shape/Geometry, property of a Rigid Body */
/** Collision Shape/Geometry, property of a Rigid Body (C-API)*/
PL_DECLARE_HANDLE(plCollisionShapeHandle);
/* Constraint for Rigid Bodies */
/** Constraint for Rigid Bodies (C-API)*/
PL_DECLARE_HANDLE(plConstraintHandle);
/* Triangle Mesh interface */
/** Triangle Mesh interface (C-API)*/
PL_DECLARE_HANDLE(plMeshInterfaceHandle);
/* Broadphase Scene/Proxy Handles */
/** Broadphase Scene/Proxy Handles (C-API)*/
PL_DECLARE_HANDLE(plCollisionBroadphaseHandle);
PL_DECLARE_HANDLE(plBroadphaseProxyHandle);
PL_DECLARE_HANDLE(plCollisionWorldHandle);
/*
/**
Create and Delete a Physics SDK
*/
extern plPhysicsSdkHandle plNewBulletSdk(); //this could be also another sdk, like ODE, PhysX etc.
extern void plDeletePhysicsSdk(plPhysicsSdkHandle physicsSdk);
/* Collision World, not strictly necessary, you can also just create a Dynamics World with Rigid Bodies which internally manages the Collision World with Collision Objects */
/** Collision World, not strictly necessary, you can also just create a Dynamics World with Rigid Bodies which internally manages the Collision World with Collision Objects */
typedef void(*btBroadphaseCallback)(void* clientData, void* object1,void* object2);

@ -19,10 +19,9 @@
// 3. This notice may not be removed or altered from any source distribution.
#include "btAxisSweep3.h"
#include <assert.h>
btAxisSweep3::btAxisSweep3(const btPoint3& worldAabbMin,const btPoint3& worldAabbMax, unsigned short int maxHandles, btOverlappingPairCache* pairCache)
:btAxisSweep3Internal<unsigned short int>(worldAabbMin,worldAabbMax,0xfffe,0xffff,maxHandles,pairCache)
btAxisSweep3::btAxisSweep3(const btVector3& worldAabbMin,const btVector3& worldAabbMax, unsigned short int maxHandles, btOverlappingPairCache* pairCache, bool disableRaycastAccelerator)
:btAxisSweep3Internal<unsigned short int>(worldAabbMin,worldAabbMax,0xfffe,0xffff,maxHandles,pairCache,disableRaycastAccelerator)
{
// 1 handle is reserved as sentinel
btAssert(maxHandles > 1 && maxHandles < 32767);
@ -30,8 +29,8 @@ btAxisSweep3::btAxisSweep3(const btPoint3& worldAabbMin,const btPoint3& worldAab
}
bt32BitAxisSweep3::bt32BitAxisSweep3(const btPoint3& worldAabbMin,const btPoint3& worldAabbMax, unsigned int maxHandles , btOverlappingPairCache* pairCache )
:btAxisSweep3Internal<unsigned int>(worldAabbMin,worldAabbMax,0xfffffffe,0x7fffffff,maxHandles,pairCache)
bt32BitAxisSweep3::bt32BitAxisSweep3(const btVector3& worldAabbMin,const btVector3& worldAabbMax, unsigned int maxHandles , btOverlappingPairCache* pairCache , bool disableRaycastAccelerator)
:btAxisSweep3Internal<unsigned int>(worldAabbMin,worldAabbMax,0xfffffffe,0x7fffffff,maxHandles,pairCache,disableRaycastAccelerator)
{
// 1 handle is reserved as sentinel
btAssert(maxHandles > 1 && maxHandles < 2147483647);

@ -19,12 +19,12 @@
#ifndef AXIS_SWEEP_3_H
#define AXIS_SWEEP_3_H
#include "LinearMath/btPoint3.h"
#include "LinearMath/btVector3.h"
#include "btOverlappingPairCache.h"
#include "btBroadphaseInterface.h"
#include "btBroadphaseProxy.h"
#include "btOverlappingPairCallback.h"
#include "btDbvtBroadphase.h"
//#define DEBUG_BROADPHASE 1
#define USE_OVERLAP_TEST_ON_REMOVES 1
@ -42,6 +42,7 @@ protected:
public:
BT_DECLARE_ALIGNED_ALLOCATOR();
class Edge
{
@ -61,8 +62,7 @@ public:
// indexes into the edge arrays
BP_FP_INT_TYPE m_minEdges[3], m_maxEdges[3]; // 6 * 2 = 12
// BP_FP_INT_TYPE m_uniqueId;
BP_FP_INT_TYPE m_pad;
btBroadphaseProxy* m_dbvtProxy;//for faster raycast
//void* m_pOwner; this is now in btBroadphaseProxy.m_clientObject
SIMD_FORCE_INLINE void SetNextFree(BP_FP_INT_TYPE next) {m_minEdges[0] = next;}
@ -71,8 +71,8 @@ public:
protected:
btPoint3 m_worldAabbMin; // overall system bounds
btPoint3 m_worldAabbMax; // overall system bounds
btVector3 m_worldAabbMin; // overall system bounds
btVector3 m_worldAabbMax; // overall system bounds
btVector3 m_quantize; // scaling factor for quantization
@ -94,6 +94,12 @@ protected:
int m_invalidPair;
///additional dynamic aabb structure, used to accelerate ray cast queries.
///can be disabled using a optional argument in the constructor
btDbvtBroadphase* m_raycastAccelerator;
btOverlappingPairCache* m_nullPairCache;
// allocation/deallocation
BP_FP_INT_TYPE allocHandle();
void freeHandle(BP_FP_INT_TYPE handle);
@ -108,7 +114,7 @@ protected:
//Overlap* AddOverlap(BP_FP_INT_TYPE handleA, BP_FP_INT_TYPE handleB);
//void RemoveOverlap(BP_FP_INT_TYPE handleA, BP_FP_INT_TYPE handleB);
void quantize(BP_FP_INT_TYPE* out, const btPoint3& point, int isMax) const;
void sortMinDown(int axis, BP_FP_INT_TYPE edge, btDispatcher* dispatcher, bool updateOverlaps );
void sortMinUp(int axis, BP_FP_INT_TYPE edge, btDispatcher* dispatcher, bool updateOverlaps );
@ -117,7 +123,7 @@ protected:
public:
btAxisSweep3Internal(const btPoint3& worldAabbMin,const btPoint3& worldAabbMax, BP_FP_INT_TYPE handleMask, BP_FP_INT_TYPE handleSentinel, BP_FP_INT_TYPE maxHandles = 16384, btOverlappingPairCache* pairCache=0);
btAxisSweep3Internal(const btVector3& worldAabbMin,const btVector3& worldAabbMax, BP_FP_INT_TYPE handleMask, BP_FP_INT_TYPE handleSentinel, BP_FP_INT_TYPE maxHandles = 16384, btOverlappingPairCache* pairCache=0,bool disableRaycastAccelerator = false);
virtual ~btAxisSweep3Internal();
@ -128,17 +134,26 @@ public:
virtual void calculateOverlappingPairs(btDispatcher* dispatcher);
BP_FP_INT_TYPE addHandle(const btPoint3& aabbMin,const btPoint3& aabbMax, void* pOwner,short int collisionFilterGroup,short int collisionFilterMask,btDispatcher* dispatcher,void* multiSapProxy);
BP_FP_INT_TYPE addHandle(const btVector3& aabbMin,const btVector3& aabbMax, void* pOwner,short int collisionFilterGroup,short int collisionFilterMask,btDispatcher* dispatcher,void* multiSapProxy);
void removeHandle(BP_FP_INT_TYPE handle,btDispatcher* dispatcher);
void updateHandle(BP_FP_INT_TYPE handle, const btPoint3& aabbMin,const btPoint3& aabbMax,btDispatcher* dispatcher);
void updateHandle(BP_FP_INT_TYPE handle, const btVector3& aabbMin,const btVector3& aabbMax,btDispatcher* dispatcher);
SIMD_FORCE_INLINE Handle* getHandle(BP_FP_INT_TYPE index) const {return m_pHandles + index;}
virtual void resetPool(btDispatcher* dispatcher);
void processAllOverlappingPairs(btOverlapCallback* callback);
//Broadphase Interface
virtual btBroadphaseProxy* createProxy( const btVector3& aabbMin, const btVector3& aabbMax,int shapeType,void* userPtr ,short int collisionFilterGroup,short int collisionFilterMask,btDispatcher* dispatcher,void* multiSapProxy);
virtual void destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
virtual void setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax,btDispatcher* dispatcher);
virtual void getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const;
virtual void rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin=btVector3(0,0,0), const btVector3& aabbMax = btVector3(0,0,0));
void quantize(BP_FP_INT_TYPE* out, const btVector3& point, int isMax) const;
///unQuantize should be conservative: aabbMin/aabbMax should be larger then 'getAabb' result
void unQuantize(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const;
bool testAabbOverlap(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1);
@ -206,7 +221,7 @@ void btAxisSweep3<BP_FP_INT_TYPE>::debugPrintAxis(int axis, bool checkCardinalit
}
if (checkCardinality)
assert(numEdges == m_numHandles*2+1);
btAssert(numEdges == m_numHandles*2+1);
}
#endif //DEBUG_BROADPHASE
@ -217,7 +232,12 @@ btBroadphaseProxy* btAxisSweep3Internal<BP_FP_INT_TYPE>::createProxy( const btV
BP_FP_INT_TYPE handleId = addHandle(aabbMin,aabbMax, userPtr,collisionFilterGroup,collisionFilterMask,dispatcher,multiSapProxy);
Handle* handle = getHandle(handleId);
if (m_raycastAccelerator)
{
btBroadphaseProxy* rayProxy = m_raycastAccelerator->createProxy(aabbMin,aabbMax,shapeType,userPtr,collisionFilterGroup,collisionFilterMask,dispatcher,0);
handle->m_dbvtProxy = rayProxy;
}
return handle;
}
@ -227,6 +247,8 @@ template <typename BP_FP_INT_TYPE>
void btAxisSweep3Internal<BP_FP_INT_TYPE>::destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher)
{
Handle* handle = static_cast<Handle*>(proxy);
if (m_raycastAccelerator)
m_raycastAccelerator->destroyProxy(handle->m_dbvtProxy,dispatcher);
removeHandle(static_cast<BP_FP_INT_TYPE>(handle->m_uniqueId), dispatcher);
}
@ -234,22 +256,80 @@ template <typename BP_FP_INT_TYPE>
void btAxisSweep3Internal<BP_FP_INT_TYPE>::setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax,btDispatcher* dispatcher)
{
Handle* handle = static_cast<Handle*>(proxy);
handle->m_aabbMin = aabbMin;
handle->m_aabbMax = aabbMax;
updateHandle(static_cast<BP_FP_INT_TYPE>(handle->m_uniqueId), aabbMin, aabbMax,dispatcher);
if (m_raycastAccelerator)
m_raycastAccelerator->setAabb(handle->m_dbvtProxy,aabbMin,aabbMax,dispatcher);
}
template <typename BP_FP_INT_TYPE>
void btAxisSweep3Internal<BP_FP_INT_TYPE>::rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback,const btVector3& aabbMin,const btVector3& aabbMax)
{
if (m_raycastAccelerator)
{
m_raycastAccelerator->rayTest(rayFrom,rayTo,rayCallback,aabbMin,aabbMax);
} else
{
//choose axis?
BP_FP_INT_TYPE axis = 0;
//for each proxy
for (BP_FP_INT_TYPE i=1;i<m_numHandles*2+1;i++)
{
if (m_pEdges[axis][i].IsMax())
{
rayCallback.process(getHandle(m_pEdges[axis][i].m_handle));
}
}
}
}
template <typename BP_FP_INT_TYPE>
void btAxisSweep3Internal<BP_FP_INT_TYPE>::getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const
{
Handle* pHandle = static_cast<Handle*>(proxy);
aabbMin = pHandle->m_aabbMin;
aabbMax = pHandle->m_aabbMax;
}
template <typename BP_FP_INT_TYPE>
void btAxisSweep3Internal<BP_FP_INT_TYPE>::unQuantize(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const
{
Handle* pHandle = static_cast<Handle*>(proxy);
unsigned short vecInMin[3];
unsigned short vecInMax[3];
vecInMin[0] = m_pEdges[0][pHandle->m_minEdges[0]].m_pos ;
vecInMax[0] = m_pEdges[0][pHandle->m_maxEdges[0]].m_pos +1 ;
vecInMin[1] = m_pEdges[1][pHandle->m_minEdges[1]].m_pos ;
vecInMax[1] = m_pEdges[1][pHandle->m_maxEdges[1]].m_pos +1 ;
vecInMin[2] = m_pEdges[2][pHandle->m_minEdges[2]].m_pos ;
vecInMax[2] = m_pEdges[2][pHandle->m_maxEdges[2]].m_pos +1 ;
aabbMin.setValue((btScalar)(vecInMin[0]) / (m_quantize.getX()),(btScalar)(vecInMin[1]) / (m_quantize.getY()),(btScalar)(vecInMin[2]) / (m_quantize.getZ()));
aabbMin += m_worldAabbMin;
aabbMax.setValue((btScalar)(vecInMax[0]) / (m_quantize.getX()),(btScalar)(vecInMax[1]) / (m_quantize.getY()),(btScalar)(vecInMax[2]) / (m_quantize.getZ()));
aabbMax += m_worldAabbMin;
}
template <typename BP_FP_INT_TYPE>
btAxisSweep3Internal<BP_FP_INT_TYPE>::btAxisSweep3Internal(const btPoint3& worldAabbMin,const btPoint3& worldAabbMax, BP_FP_INT_TYPE handleMask, BP_FP_INT_TYPE handleSentinel,BP_FP_INT_TYPE userMaxHandles, btOverlappingPairCache* pairCache )
btAxisSweep3Internal<BP_FP_INT_TYPE>::btAxisSweep3Internal(const btVector3& worldAabbMin,const btVector3& worldAabbMax, BP_FP_INT_TYPE handleMask, BP_FP_INT_TYPE handleSentinel,BP_FP_INT_TYPE userMaxHandles, btOverlappingPairCache* pairCache , bool disableRaycastAccelerator)
:m_bpHandleMask(handleMask),
m_handleSentinel(handleSentinel),
m_pairCache(pairCache),
m_userPairCallback(0),
m_ownsPairCache(false),
m_invalidPair(0)
m_invalidPair(0),
m_raycastAccelerator(0)
{
BP_FP_INT_TYPE maxHandles = static_cast<BP_FP_INT_TYPE>(userMaxHandles+1);//need to add one sentinel handle
@ -260,7 +340,14 @@ m_invalidPair(0)
m_ownsPairCache = true;
}
//assert(bounds.HasVolume());
if (!disableRaycastAccelerator)
{
m_nullPairCache = new (btAlignedAlloc(sizeof(btNullPairCache),16)) btNullPairCache();
m_raycastAccelerator = new (btAlignedAlloc(sizeof(btDbvtBroadphase),16)) btDbvtBroadphase(m_nullPairCache);//m_pairCache);
m_raycastAccelerator->m_deferedcollide = true;//don't add/remove pairs
}
//btAssert(bounds.HasVolume());
// init bounds
m_worldAabbMin = worldAabbMin;
@ -320,7 +407,14 @@ m_invalidPair(0)
template <typename BP_FP_INT_TYPE>
btAxisSweep3Internal<BP_FP_INT_TYPE>::~btAxisSweep3Internal()
{
if (m_raycastAccelerator)
{
m_nullPairCache->~btOverlappingPairCache();
btAlignedFree(m_nullPairCache);
m_raycastAccelerator->~btDbvtBroadphase();
btAlignedFree (m_raycastAccelerator);
}
for (int i = 2; i >= 0; i--)
{
btAlignedFree(m_pEdgesRawPtr[i]);
@ -335,27 +429,31 @@ btAxisSweep3Internal<BP_FP_INT_TYPE>::~btAxisSweep3Internal()
}
template <typename BP_FP_INT_TYPE>
void btAxisSweep3Internal<BP_FP_INT_TYPE>::quantize(BP_FP_INT_TYPE* out, const btPoint3& point, int isMax) const
void btAxisSweep3Internal<BP_FP_INT_TYPE>::quantize(BP_FP_INT_TYPE* out, const btVector3& point, int isMax) const
{
btPoint3 clampedPoint(point);
#ifdef OLD_CLAMPING_METHOD
///problem with this clamping method is that the floating point during quantization might still go outside the range [(0|isMax) .. (m_handleSentinel&m_bpHandleMask]|isMax]
///see http://code.google.com/p/bullet/issues/detail?id=87
btVector3 clampedPoint(point);
clampedPoint.setMax(m_worldAabbMin);
clampedPoint.setMin(m_worldAabbMax);
btVector3 v = (clampedPoint - m_worldAabbMin) * m_quantize;
out[0] = (BP_FP_INT_TYPE)(((BP_FP_INT_TYPE)v.getX() & m_bpHandleMask) | isMax);
out[1] = (BP_FP_INT_TYPE)(((BP_FP_INT_TYPE)v.getY() & m_bpHandleMask) | isMax);
out[2] = (BP_FP_INT_TYPE)(((BP_FP_INT_TYPE)v.getZ() & m_bpHandleMask) | isMax);
#else
btVector3 v = (point - m_worldAabbMin) * m_quantize;
out[0]=(v[0]<=0)?(BP_FP_INT_TYPE)isMax:(v[0]>=m_handleSentinel)?(BP_FP_INT_TYPE)((m_handleSentinel&m_bpHandleMask)|isMax):(BP_FP_INT_TYPE)(((BP_FP_INT_TYPE)v[0]&m_bpHandleMask)|isMax);
out[1]=(v[1]<=0)?(BP_FP_INT_TYPE)isMax:(v[1]>=m_handleSentinel)?(BP_FP_INT_TYPE)((m_handleSentinel&m_bpHandleMask)|isMax):(BP_FP_INT_TYPE)(((BP_FP_INT_TYPE)v[1]&m_bpHandleMask)|isMax);
out[2]=(v[2]<=0)?(BP_FP_INT_TYPE)isMax:(v[2]>=m_handleSentinel)?(BP_FP_INT_TYPE)((m_handleSentinel&m_bpHandleMask)|isMax):(BP_FP_INT_TYPE)(((BP_FP_INT_TYPE)v[2]&m_bpHandleMask)|isMax);
#endif //OLD_CLAMPING_METHOD
}
template <typename BP_FP_INT_TYPE>
BP_FP_INT_TYPE btAxisSweep3Internal<BP_FP_INT_TYPE>::allocHandle()
{
assert(m_firstFreeHandle);
btAssert(m_firstFreeHandle);
BP_FP_INT_TYPE handle = m_firstFreeHandle;
m_firstFreeHandle = getHandle(handle)->GetNextFree();
@ -367,7 +465,7 @@ BP_FP_INT_TYPE btAxisSweep3Internal<BP_FP_INT_TYPE>::allocHandle()
template <typename BP_FP_INT_TYPE>
void btAxisSweep3Internal<BP_FP_INT_TYPE>::freeHandle(BP_FP_INT_TYPE handle)
{
assert(handle > 0 && handle < m_maxHandles);
btAssert(handle > 0 && handle < m_maxHandles);
getHandle(handle)->SetNextFree(m_firstFreeHandle);
m_firstFreeHandle = handle;
@ -377,7 +475,7 @@ void btAxisSweep3Internal<BP_FP_INT_TYPE>::freeHandle(BP_FP_INT_TYPE handle)
template <typename BP_FP_INT_TYPE>
BP_FP_INT_TYPE btAxisSweep3Internal<BP_FP_INT_TYPE>::addHandle(const btPoint3& aabbMin,const btPoint3& aabbMax, void* pOwner,short int collisionFilterGroup,short int collisionFilterMask,btDispatcher* dispatcher,void* multiSapProxy)
BP_FP_INT_TYPE btAxisSweep3Internal<BP_FP_INT_TYPE>::addHandle(const btVector3& aabbMin,const btVector3& aabbMax, void* pOwner,short int collisionFilterGroup,short int collisionFilterMask,btDispatcher* dispatcher,void* multiSapProxy)
{
// quantize the bounds
BP_FP_INT_TYPE min[3], max[3];
@ -440,7 +538,7 @@ void btAxisSweep3Internal<BP_FP_INT_TYPE>::removeHandle(BP_FP_INT_TYPE handle,bt
//explicitly remove the pairs containing the proxy
//we could do it also in the sortMinUp (passing true)
//todo: compare performance
///@todo: compare performance
if (!m_pairCache->hasDeferredRemoval())
{
m_pairCache->removeOverlappingPairsContainingProxy(pHandle,dispatcher);
@ -489,6 +587,21 @@ void btAxisSweep3Internal<BP_FP_INT_TYPE>::removeHandle(BP_FP_INT_TYPE handle,bt
}
template <typename BP_FP_INT_TYPE>
void btAxisSweep3Internal<BP_FP_INT_TYPE>::resetPool(btDispatcher* dispatcher)
{
if (m_numHandles == 0)
{
m_firstFreeHandle = 1;
{
for (BP_FP_INT_TYPE i = m_firstFreeHandle; i < m_maxHandles; i++)
m_pHandles[i].SetNextFree(static_cast<BP_FP_INT_TYPE>(i + 1));
m_pHandles[m_maxHandles - 1].SetNextFree(0);
}
}
}
extern int gOverlappingPairs;
//#include <stdio.h>
@ -529,6 +642,7 @@ void btAxisSweep3Internal<BP_FP_INT_TYPE>::calculateOverlappingPairs(btDispatche
if (!isDuplicate)
{
///important to use an AABB test that is consistent with the broadphase
bool hasOverlap = testAabbOverlap(pair.m_pProxy0,pair.m_pProxy1);
if (hasOverlap)
@ -574,10 +688,6 @@ void btAxisSweep3Internal<BP_FP_INT_TYPE>::calculateOverlappingPairs(btDispatche
//printf("overlappingPairArray.size()=%d\n",overlappingPairArray.size());
}
}
@ -616,10 +726,10 @@ bool btAxisSweep3Internal<BP_FP_INT_TYPE>::testOverlap2D(const Handle* pHandleA,
}
template <typename BP_FP_INT_TYPE>
void btAxisSweep3Internal<BP_FP_INT_TYPE>::updateHandle(BP_FP_INT_TYPE handle, const btPoint3& aabbMin,const btPoint3& aabbMax,btDispatcher* dispatcher)
void btAxisSweep3Internal<BP_FP_INT_TYPE>::updateHandle(BP_FP_INT_TYPE handle, const btVector3& aabbMin,const btVector3& aabbMax,btDispatcher* dispatcher)
{
// assert(bounds.IsFinite());
//assert(bounds.HasVolume());
// btAssert(bounds.IsFinite());
//btAssert(bounds.HasVolume());
Handle* pHandle = getHandle(handle);
@ -895,7 +1005,7 @@ class btAxisSweep3 : public btAxisSweep3Internal<unsigned short int>
{
public:
btAxisSweep3(const btPoint3& worldAabbMin,const btPoint3& worldAabbMax, unsigned short int maxHandles = 16384, btOverlappingPairCache* pairCache = 0);
btAxisSweep3(const btVector3& worldAabbMin,const btVector3& worldAabbMax, unsigned short int maxHandles = 16384, btOverlappingPairCache* pairCache = 0, bool disableRaycastAccelerator = false);
};
@ -906,7 +1016,7 @@ class bt32BitAxisSweep3 : public btAxisSweep3Internal<unsigned int>
{
public:
bt32BitAxisSweep3(const btPoint3& worldAabbMin,const btPoint3& worldAabbMax, unsigned int maxHandles = 1500000, btOverlappingPairCache* pairCache = 0);
bt32BitAxisSweep3(const btVector3& worldAabbMin,const btVector3& worldAabbMax, unsigned int maxHandles = 1500000, btOverlappingPairCache* pairCache = 0, bool disableRaycastAccelerator = false);
};

@ -21,8 +21,22 @@ subject to the following restrictions:
struct btDispatcherInfo;
class btDispatcher;
#include "btBroadphaseProxy.h"
class btOverlappingPairCache;
struct btBroadphaseRayCallback
{
///added some cached data to accelerate ray-AABB tests
btVector3 m_rayDirectionInverse;
unsigned int m_signs[3];
btScalar m_lambda_max;
virtual ~btBroadphaseRayCallback() {}
virtual bool process(const btBroadphaseProxy* proxy) = 0;
};
#include "LinearMath/btVector3.h"
///The btBroadphaseInterface class provides an interface to detect aabb-overlapping object pairs.
@ -36,7 +50,10 @@ public:
virtual btBroadphaseProxy* createProxy( const btVector3& aabbMin, const btVector3& aabbMax,int shapeType,void* userPtr, short int collisionFilterGroup,short int collisionFilterMask, btDispatcher* dispatcher,void* multiSapProxy) =0;
virtual void destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher)=0;
virtual void setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* dispatcher)=0;
virtual void getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const =0;
virtual void rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin=btVector3(0,0,0), const btVector3& aabbMax = btVector3(0,0,0)) = 0;
///calculateOverlappingPairs is optional: incremental algorithms (sweep and prune) might do it during the set aabb
virtual void calculateOverlappingPairs(btDispatcher* dispatcher)=0;
@ -47,6 +64,9 @@ public:
///will add some transform later
virtual void getBroadphaseAabb(btVector3& aabbMin,btVector3& aabbMax) const =0;
///reset broadphase internal structures, to ensure determinism/reproducability
virtual void resetPool(btDispatcher* dispatcher) {};
virtual void printStats() = 0;
};

@ -17,20 +17,24 @@ subject to the following restrictions:
#define BROADPHASE_PROXY_H
#include "LinearMath/btScalar.h" //for SIMD_FORCE_INLINE
#include "LinearMath/btVector3.h"
#include "LinearMath/btAlignedAllocator.h"
/// btDispatcher uses these types
/// IMPORTANT NOTE:The types are ordered polyhedral, implicit convex and concave
/// to facilitate type checking
/// CUSTOM_POLYHEDRAL_SHAPE_TYPE,CUSTOM_CONVEX_SHAPE_TYPE and CUSTOM_CONCAVE_SHAPE_TYPE can be used to extend Bullet without modifying source code
enum BroadphaseNativeTypes
{
// polyhedral convex shapes
// polyhedral convex shapes
BOX_SHAPE_PROXYTYPE,
TRIANGLE_SHAPE_PROXYTYPE,
TETRAHEDRAL_SHAPE_PROXYTYPE,
CONVEX_TRIANGLEMESH_SHAPE_PROXYTYPE,
CONVEX_HULL_SHAPE_PROXYTYPE,
CONVEX_POINT_CLOUD_SHAPE_PROXYTYPE,
CUSTOM_POLYHEDRAL_SHAPE_TYPE,
//implicit convex shapes
IMPLICIT_CONVEX_SHAPES_START_HERE,
SPHERE_SHAPE_PROXYTYPE,
@ -42,6 +46,7 @@ IMPLICIT_CONVEX_SHAPES_START_HERE,
UNIFORM_SCALING_SHAPE_PROXYTYPE,
MINKOWSKI_SUM_SHAPE_PROXYTYPE,
MINKOWSKI_DIFFERENCE_SHAPE_PROXYTYPE,
CUSTOM_CONVEX_SHAPE_TYPE,
//concave shapes
CONCAVE_SHAPES_START_HERE,
//keep all the convex shapetype below here, for the check IsConvexShape in broadphase proxy!
@ -58,13 +63,18 @@ CONCAVE_SHAPES_START_HERE,
EMPTY_SHAPE_PROXYTYPE,
STATIC_PLANE_PROXYTYPE,
CUSTOM_CONCAVE_SHAPE_TYPE,
CONCAVE_SHAPES_END_HERE,
COMPOUND_SHAPE_PROXYTYPE,
SOFTBODY_SHAPE_PROXYTYPE,
HFFLUID_SHAPE_PROXYTYPE,
HFFLUID_BUOYANT_CONVEX_SHAPE_PROXYTYPE,
INVALID_SHAPE_PROXYTYPE,
MAX_BROADPHASE_COLLISION_TYPES
};
@ -83,20 +93,20 @@ BT_DECLARE_ALIGNED_ALLOCATOR();
KinematicFilter = 4,
DebrisFilter = 8,
SensorTrigger = 16,
CharacterFilter = 32,
AllFilter = -1 //all bits sets: DefaultFilter | StaticFilter | KinematicFilter | DebrisFilter | SensorTrigger
};
//Usually the client btCollisionObject or Rigidbody class
void* m_clientObject;
short int m_collisionFilterGroup;
short int m_collisionFilterMask;
void* m_multiSapParentProxy;
int m_uniqueId;//m_uniqueId is introduced for paircache. could get rid of this, by calculating the address offset etc.
btVector3 m_aabbMin;
btVector3 m_aabbMax;
SIMD_FORCE_INLINE int getUid() const
{
return m_uniqueId;
@ -107,10 +117,12 @@ BT_DECLARE_ALIGNED_ALLOCATOR();
{
}
btBroadphaseProxy(void* userPtr,short int collisionFilterGroup, short int collisionFilterMask,void* multiSapParentProxy=0)
btBroadphaseProxy(const btVector3& aabbMin,const btVector3& aabbMax,void* userPtr,short int collisionFilterGroup, short int collisionFilterMask,void* multiSapParentProxy=0)
:m_clientObject(userPtr),
m_collisionFilterGroup(collisionFilterGroup),
m_collisionFilterMask(collisionFilterMask)
m_collisionFilterMask(collisionFilterMask),
m_aabbMin(aabbMin),
m_aabbMax(aabbMax)
{
m_multiSapParentProxy = multiSapParentProxy;
}
@ -159,7 +171,7 @@ ATTRIBUTE_ALIGNED16(struct) btBroadphasePair
m_pProxy0(0),
m_pProxy1(0),
m_algorithm(0),
m_userInfo(0)
m_internalInfo1(0)
{
}
@ -169,14 +181,14 @@ BT_DECLARE_ALIGNED_ALLOCATOR();
: m_pProxy0(other.m_pProxy0),
m_pProxy1(other.m_pProxy1),
m_algorithm(other.m_algorithm),
m_userInfo(other.m_userInfo)
m_internalInfo1(other.m_internalInfo1)
{
}
btBroadphasePair(btBroadphaseProxy& proxy0,btBroadphaseProxy& proxy1)
{
//keep them sorted, so the std::set operations work
if (&proxy0 < &proxy1)
if (proxy0.m_uniqueId < proxy1.m_uniqueId)
{
m_pProxy0 = &proxy0;
m_pProxy1 = &proxy1;
@ -188,7 +200,7 @@ BT_DECLARE_ALIGNED_ALLOCATOR();
}
m_algorithm = 0;
m_userInfo = 0;
m_internalInfo1 = 0;
}
@ -196,7 +208,7 @@ BT_DECLARE_ALIGNED_ALLOCATOR();
btBroadphaseProxy* m_pProxy1;
mutable btCollisionAlgorithm* m_algorithm;
mutable void* m_userInfo;
union { void* m_internalInfo1; int m_internalTmpValue;};//don't use this data, it will be removed in future version.
};
@ -217,8 +229,13 @@ class btBroadphasePairSortPredicate
bool operator() ( const btBroadphasePair& a, const btBroadphasePair& b )
{
return a.m_pProxy0 > b.m_pProxy0 ||
(a.m_pProxy0 == b.m_pProxy0 && a.m_pProxy1 > b.m_pProxy1) ||
const int uidA0 = a.m_pProxy0 ? a.m_pProxy0->m_uniqueId : -1;
const int uidB0 = b.m_pProxy0 ? b.m_pProxy0->m_uniqueId : -1;
const int uidA1 = a.m_pProxy1 ? a.m_pProxy1->m_uniqueId : -1;
const int uidB1 = b.m_pProxy1 ? b.m_pProxy1->m_uniqueId : -1;
return uidA0 > uidB0 ||
(a.m_pProxy0 == b.m_pProxy0 && uidA1 > uidB1) ||
(a.m_pProxy0 == b.m_pProxy0 && a.m_pProxy1 == b.m_pProxy1 && a.m_algorithm > b.m_algorithm);
}
};

File diff suppressed because it is too large Load Diff

File diff suppressed because it is too large Load Diff

@ -26,19 +26,19 @@ subject to the following restrictions:
#if DBVT_BP_PROFILE
struct ProfileScope
{
{
__forceinline ProfileScope(btClock& clock,unsigned long& value) :
m_clock(&clock),m_value(&value),m_base(clock.getTimeMicroseconds())
{
}
m_clock(&clock),m_value(&value),m_base(clock.getTimeMicroseconds())
{
}
__forceinline ~ProfileScope()
{
{
(*m_value)+=m_clock->getTimeMicroseconds()-m_base;
}
}
btClock* m_clock;
unsigned long* m_value;
unsigned long m_base;
};
};
#define SPC(_value_) ProfileScope spc_scope(m_clock,_value_)
#else
#define SPC(_value_)
@ -52,35 +52,35 @@ struct ProfileScope
template <typename T>
static inline void listappend(T* item,T*& list)
{
item->links[0]=0;
item->links[1]=list;
if(list) list->links[0]=item;
list=item;
item->links[0]=0;
item->links[1]=list;
if(list) list->links[0]=item;
list=item;
}
//
template <typename T>
static inline void listremove(T* item,T*& list)
{
if(item->links[0]) item->links[0]->links[1]=item->links[1]; else list=item->links[1];
if(item->links[1]) item->links[1]->links[0]=item->links[0];
if(item->links[0]) item->links[0]->links[1]=item->links[1]; else list=item->links[1];
if(item->links[1]) item->links[1]->links[0]=item->links[0];
}
//
template <typename T>
static inline int listcount(T* root)
{
int n=0;
while(root) { ++n;root=root->links[1]; }
return(n);
int n=0;
while(root) { ++n;root=root->links[1]; }
return(n);
}
//
template <typename T>
static inline void clear(T& value)
{
static const struct ZeroDummy : T {} zerodummy;
value=zerodummy;
static const struct ZeroDummy : T {} zerodummy;
value=zerodummy;
}
//
@ -90,25 +90,26 @@ value=zerodummy;
/* Tree collider */
struct btDbvtTreeCollider : btDbvt::ICollide
{
btDbvtBroadphase* pbp;
btDbvtProxy* proxy;
btDbvtTreeCollider(btDbvtBroadphase* p) : pbp(p) {}
void Process(const btDbvtNode* na,const btDbvtNode* nb)
btDbvtBroadphase* pbp;
btDbvtProxy* proxy;
btDbvtTreeCollider(btDbvtBroadphase* p) : pbp(p) {}
void Process(const btDbvtNode* na,const btDbvtNode* nb)
{
if(na!=nb)
if(na!=nb)
{
btDbvtProxy* pa=(btDbvtProxy*)na->data;
btDbvtProxy* pb=(btDbvtProxy*)nb->data;
#if DBVT_BP_SORTPAIRS
if(pa>pb) btSwap(pa,pb);
#endif
pbp->m_paircache->addOverlappingPair(pa,pb);
++pbp->m_newpairs;
btDbvtProxy* pa=(btDbvtProxy*)na->data;
btDbvtProxy* pb=(btDbvtProxy*)nb->data;
#if DBVT_BP_SORTPAIRS
if(pa->m_uniqueId>pb->m_uniqueId)
btSwap(pa,pb);
#endif
pbp->m_paircache->addOverlappingPair(pa,pb);
++pbp->m_newpairs;
}
}
void Process(const btDbvtNode* n)
void Process(const btDbvtNode* n)
{
Process(n,proxy->leaf);
Process(n,proxy->leaf);
}
};
@ -119,147 +120,197 @@ void Process(const btDbvtNode* n)
//
btDbvtBroadphase::btDbvtBroadphase(btOverlappingPairCache* paircache)
{
m_deferedcollide = false;
m_needcleanup = true;
m_releasepaircache = (paircache!=0)?false:true;
m_prediction = 1/(btScalar)2;
m_stageCurrent = 0;
m_fixedleft = 0;
m_fupdates = 1;
m_dupdates = 0;
m_cupdates = 10;
m_newpairs = 1;
m_updates_call = 0;
m_updates_done = 0;
m_updates_ratio = 0;
m_paircache = paircache?
paircache :
new(btAlignedAlloc(sizeof(btHashedOverlappingPairCache),16)) btHashedOverlappingPairCache();
m_gid = 0;
m_pid = 0;
m_cid = 0;
for(int i=0;i<=STAGECOUNT;++i)
m_deferedcollide = false;
m_needcleanup = true;
m_releasepaircache = (paircache!=0)?false:true;
m_prediction = 1/(btScalar)2;
m_stageCurrent = 0;
m_fixedleft = 0;
m_fupdates = 1;
m_dupdates = 0;
m_cupdates = 10;
m_newpairs = 1;
m_updates_call = 0;
m_updates_done = 0;
m_updates_ratio = 0;
m_paircache = paircache? paircache : new(btAlignedAlloc(sizeof(btHashedOverlappingPairCache),16)) btHashedOverlappingPairCache();
m_gid = 0;
m_pid = 0;
m_cid = 0;
for(int i=0;i<=STAGECOUNT;++i)
{
m_stageRoots[i]=0;
m_stageRoots[i]=0;
}
#if DBVT_BP_PROFILE
clear(m_profiling);
clear(m_profiling);
#endif
}
//
btDbvtBroadphase::~btDbvtBroadphase()
{
if(m_releasepaircache)
{
m_paircache->~btOverlappingPairCache();
btAlignedFree(m_paircache);
}
if(m_releasepaircache)
{
m_paircache->~btOverlappingPairCache();
btAlignedFree(m_paircache);
}
}
//
btBroadphaseProxy* btDbvtBroadphase::createProxy( const btVector3& aabbMin,
const btVector3& aabbMax,
int /*shapeType*/,
void* userPtr,
short int collisionFilterGroup,
short int collisionFilterMask,
btDispatcher* /*dispatcher*/,
void* /*multiSapProxy*/)
const btVector3& aabbMax,
int /*shapeType*/,
void* userPtr,
short int collisionFilterGroup,
short int collisionFilterMask,
btDispatcher* /*dispatcher*/,
void* /*multiSapProxy*/)
{
btDbvtProxy* proxy=new(btAlignedAlloc(sizeof(btDbvtProxy),16)) btDbvtProxy( userPtr,
collisionFilterGroup,
collisionFilterMask);
proxy->aabb = btDbvtVolume::FromMM(aabbMin,aabbMax);
proxy->stage = m_stageCurrent;
proxy->m_uniqueId = ++m_gid;
proxy->leaf = m_sets[0].insert(proxy->aabb,proxy);
listappend(proxy,m_stageRoots[m_stageCurrent]);
if(!m_deferedcollide)
btDbvtProxy* proxy=new(btAlignedAlloc(sizeof(btDbvtProxy),16)) btDbvtProxy( aabbMin,aabbMax,userPtr,
collisionFilterGroup,
collisionFilterMask);
btDbvtAabbMm aabb = btDbvtVolume::FromMM(aabbMin,aabbMax);
//bproxy->aabb = btDbvtVolume::FromMM(aabbMin,aabbMax);
proxy->stage = m_stageCurrent;
proxy->m_uniqueId = ++m_gid;
proxy->leaf = m_sets[0].insert(aabb,proxy);
listappend(proxy,m_stageRoots[m_stageCurrent]);
if(!m_deferedcollide)
{
btDbvtTreeCollider collider(this);
collider.proxy=proxy;
btDbvt::collideTV(m_sets[0].m_root,proxy->aabb,collider);
btDbvt::collideTV(m_sets[1].m_root,proxy->aabb,collider);
btDbvtTreeCollider collider(this);
collider.proxy=proxy;
m_sets[0].collideTV(m_sets[0].m_root,aabb,collider);
m_sets[1].collideTV(m_sets[1].m_root,aabb,collider);
}
return(proxy);
return(proxy);
}
//
void btDbvtBroadphase::destroyProxy( btBroadphaseProxy* absproxy,
btDispatcher* dispatcher)
btDispatcher* dispatcher)
{
btDbvtProxy* proxy=(btDbvtProxy*)absproxy;
if(proxy->stage==STAGECOUNT)
m_sets[1].remove(proxy->leaf);
btDbvtProxy* proxy=(btDbvtProxy*)absproxy;
if(proxy->stage==STAGECOUNT)
m_sets[1].remove(proxy->leaf);
else
m_sets[0].remove(proxy->leaf);
listremove(proxy,m_stageRoots[proxy->stage]);
m_paircache->removeOverlappingPairsContainingProxy(proxy,dispatcher);
btAlignedFree(proxy);
m_needcleanup=true;
m_sets[0].remove(proxy->leaf);
listremove(proxy,m_stageRoots[proxy->stage]);
m_paircache->removeOverlappingPairsContainingProxy(proxy,dispatcher);
btAlignedFree(proxy);
m_needcleanup=true;
}
void btDbvtBroadphase::getAabb(btBroadphaseProxy* absproxy,btVector3& aabbMin, btVector3& aabbMax ) const
{
btDbvtProxy* proxy=(btDbvtProxy*)absproxy;
aabbMin = proxy->m_aabbMin;
aabbMax = proxy->m_aabbMax;
}
struct BroadphaseRayTester : btDbvt::ICollide
{
btBroadphaseRayCallback& m_rayCallback;
BroadphaseRayTester(btBroadphaseRayCallback& orgCallback)
:m_rayCallback(orgCallback)
{
}
void Process(const btDbvtNode* leaf)
{
btDbvtProxy* proxy=(btDbvtProxy*)leaf->data;
m_rayCallback.process(proxy);
}
};
void btDbvtBroadphase::rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback,const btVector3& aabbMin,const btVector3& aabbMax)
{
BroadphaseRayTester callback(rayCallback);
m_sets[0].rayTestInternal( m_sets[0].m_root,
rayFrom,
rayTo,
rayCallback.m_rayDirectionInverse,
rayCallback.m_signs,
rayCallback.m_lambda_max,
aabbMin,
aabbMax,
callback);
m_sets[1].rayTestInternal( m_sets[1].m_root,
rayFrom,
rayTo,
rayCallback.m_rayDirectionInverse,
rayCallback.m_signs,
rayCallback.m_lambda_max,
aabbMin,
aabbMax,
callback);
}
//
void btDbvtBroadphase::setAabb( btBroadphaseProxy* absproxy,
const btVector3& aabbMin,
const btVector3& aabbMax,
btDispatcher* /*dispatcher*/)
const btVector3& aabbMin,
const btVector3& aabbMax,
btDispatcher* /*dispatcher*/)
{
btDbvtProxy* proxy=(btDbvtProxy*)absproxy;
ATTRIBUTE_ALIGNED16(btDbvtVolume) aabb=btDbvtVolume::FromMM(aabbMin,aabbMax);
btDbvtProxy* proxy=(btDbvtProxy*)absproxy;
ATTRIBUTE_ALIGNED16(btDbvtVolume) aabb=btDbvtVolume::FromMM(aabbMin,aabbMax);
#if DBVT_BP_PREVENTFALSEUPDATE
if(NotEqual(aabb,proxy->leaf->volume))
if(NotEqual(aabb,proxy->leaf->volume))
#endif
{
bool docollide=false;
if(proxy->stage==STAGECOUNT)
bool docollide=false;
if(proxy->stage==STAGECOUNT)
{/* fixed -> dynamic set */
m_sets[1].remove(proxy->leaf);
proxy->leaf=m_sets[0].insert(aabb,proxy);
docollide=true;
m_sets[1].remove(proxy->leaf);
proxy->leaf=m_sets[0].insert(aabb,proxy);
docollide=true;
}
else
{/* dynamic set */
++m_updates_call;
if(Intersect(proxy->leaf->volume,aabb))
++m_updates_call;
if(Intersect(proxy->leaf->volume,aabb))
{/* Moving */
const btVector3 delta=aabbMin-proxy->aabb.Mins();
btVector3 velocity(aabb.Extents()*m_prediction);
if(delta[0]<0) velocity[0]=-velocity[0];
if(delta[1]<0) velocity[1]=-velocity[1];
if(delta[2]<0) velocity[2]=-velocity[2];
if (
#ifdef DBVT_BP_MARGIN
m_sets[0].update(proxy->leaf,aabb,velocity,DBVT_BP_MARGIN)
#else
m_sets[0].update(proxy->leaf,aabb,velocity)
#endif
)
const btVector3 delta=aabbMin-proxy->m_aabbMin;
btVector3 velocity(((proxy->m_aabbMax-proxy->m_aabbMin)/2)*m_prediction);
if(delta[0]<0) velocity[0]=-velocity[0];
if(delta[1]<0) velocity[1]=-velocity[1];
if(delta[2]<0) velocity[2]=-velocity[2];
if (
#ifdef DBVT_BP_MARGIN
m_sets[0].update(proxy->leaf,aabb,velocity,DBVT_BP_MARGIN)
#else
m_sets[0].update(proxy->leaf,aabb,velocity)
#endif
)
{
++m_updates_done;
docollide=true;
++m_updates_done;
docollide=true;
}
}
else
{/* Teleporting */
m_sets[0].update(proxy->leaf,aabb);
++m_updates_done;
docollide=true;
m_sets[0].update(proxy->leaf,aabb);
++m_updates_done;
docollide=true;
}
}
listremove(proxy,m_stageRoots[proxy->stage]);
proxy->aabb = aabb;
proxy->stage = m_stageCurrent;
listappend(proxy,m_stageRoots[m_stageCurrent]);
if(docollide)
listremove(proxy,m_stageRoots[proxy->stage]);
proxy->m_aabbMin = aabbMin;
proxy->m_aabbMax = aabbMax;
proxy->stage = m_stageCurrent;
listappend(proxy,m_stageRoots[m_stageCurrent]);
if(docollide)
{
m_needcleanup=true;
if(!m_deferedcollide)
m_needcleanup=true;
if(!m_deferedcollide)
{
btDbvtTreeCollider collider(this);
btDbvt::collideTT(m_sets[1].m_root,proxy->leaf,collider);
btDbvt::collideTT(m_sets[0].m_root,proxy->leaf,collider);
btDbvtTreeCollider collider(this);
m_sets[1].collideTTpersistentStack(m_sets[1].m_root,proxy->leaf,collider);
m_sets[0].collideTTpersistentStack(m_sets[0].m_root,proxy->leaf,collider);
}
}
}
@ -268,132 +319,226 @@ if(NotEqual(aabb,proxy->leaf->volume))
//
void btDbvtBroadphase::calculateOverlappingPairs(btDispatcher* dispatcher)
{
collide(dispatcher);
collide(dispatcher);
#if DBVT_BP_PROFILE
if(0==(m_pid%DBVT_BP_PROFILING_RATE))
if(0==(m_pid%DBVT_BP_PROFILING_RATE))
{
printf("fixed(%u) dynamics(%u) pairs(%u)\r\n",m_sets[1].m_leaves,m_sets[0].m_leaves,m_paircache->getNumOverlappingPairs());
unsigned int total=m_profiling.m_total;
if(total<=0) total=1;
printf("ddcollide: %u%% (%uus)\r\n",(50+m_profiling.m_ddcollide*100)/total,m_profiling.m_ddcollide/DBVT_BP_PROFILING_RATE);
printf("fdcollide: %u%% (%uus)\r\n",(50+m_profiling.m_fdcollide*100)/total,m_profiling.m_fdcollide/DBVT_BP_PROFILING_RATE);
printf("cleanup: %u%% (%uus)\r\n",(50+m_profiling.m_cleanup*100)/total,m_profiling.m_cleanup/DBVT_BP_PROFILING_RATE);
printf("total: %uus\r\n",total/DBVT_BP_PROFILING_RATE);
const unsigned long sum=m_profiling.m_ddcollide+
m_profiling.m_fdcollide+
m_profiling.m_cleanup;
printf("leaked: %u%% (%uus)\r\n",100-((50+sum*100)/total),(total-sum)/DBVT_BP_PROFILING_RATE);
printf("job counts: %u%%\r\n",(m_profiling.m_jobcount*100)/((m_sets[0].m_leaves+m_sets[1].m_leaves)*DBVT_BP_PROFILING_RATE));
clear(m_profiling);
m_clock.reset();
printf("fixed(%u) dynamics(%u) pairs(%u)\r\n",m_sets[1].m_leaves,m_sets[0].m_leaves,m_paircache->getNumOverlappingPairs());
unsigned int total=m_profiling.m_total;
if(total<=0) total=1;
printf("ddcollide: %u%% (%uus)\r\n",(50+m_profiling.m_ddcollide*100)/total,m_profiling.m_ddcollide/DBVT_BP_PROFILING_RATE);
printf("fdcollide: %u%% (%uus)\r\n",(50+m_profiling.m_fdcollide*100)/total,m_profiling.m_fdcollide/DBVT_BP_PROFILING_RATE);
printf("cleanup: %u%% (%uus)\r\n",(50+m_profiling.m_cleanup*100)/total,m_profiling.m_cleanup/DBVT_BP_PROFILING_RATE);
printf("total: %uus\r\n",total/DBVT_BP_PROFILING_RATE);
const unsigned long sum=m_profiling.m_ddcollide+
m_profiling.m_fdcollide+
m_profiling.m_cleanup;
printf("leaked: %u%% (%uus)\r\n",100-((50+sum*100)/total),(total-sum)/DBVT_BP_PROFILING_RATE);
printf("job counts: %u%%\r\n",(m_profiling.m_jobcount*100)/((m_sets[0].m_leaves+m_sets[1].m_leaves)*DBVT_BP_PROFILING_RATE));
clear(m_profiling);
m_clock.reset();
}
#endif
performDeferredRemoval(dispatcher);
}
void btDbvtBroadphase::performDeferredRemoval(btDispatcher* dispatcher)
{
if (m_paircache->hasDeferredRemoval())
{
btBroadphasePairArray& overlappingPairArray = m_paircache->getOverlappingPairArray();
//perform a sort, to find duplicates and to sort 'invalid' pairs to the end
overlappingPairArray.quickSort(btBroadphasePairSortPredicate());
int invalidPair = 0;
int i;
btBroadphasePair previousPair;
previousPair.m_pProxy0 = 0;
previousPair.m_pProxy1 = 0;
previousPair.m_algorithm = 0;
for (i=0;i<overlappingPairArray.size();i++)
{
btBroadphasePair& pair = overlappingPairArray[i];
bool isDuplicate = (pair == previousPair);
previousPair = pair;
bool needsRemoval = false;
if (!isDuplicate)
{
//important to perform AABB check that is consistent with the broadphase
btDbvtProxy* pa=(btDbvtProxy*)pair.m_pProxy0;
btDbvtProxy* pb=(btDbvtProxy*)pair.m_pProxy1;
bool hasOverlap = Intersect(pa->leaf->volume,pb->leaf->volume);
if (hasOverlap)
{
needsRemoval = false;
} else
{
needsRemoval = true;
}
} else
{
//remove duplicate
needsRemoval = true;
//should have no algorithm
btAssert(!pair.m_algorithm);
}
if (needsRemoval)
{
m_paircache->cleanOverlappingPair(pair,dispatcher);
pair.m_pProxy0 = 0;
pair.m_pProxy1 = 0;
invalidPair++;
}
}
//perform a sort, to sort 'invalid' pairs to the end
overlappingPairArray.quickSort(btBroadphasePairSortPredicate());
overlappingPairArray.resize(overlappingPairArray.size() - invalidPair);
}
}
//
void btDbvtBroadphase::collide(btDispatcher* dispatcher)
{
SPC(m_profiling.m_total);
/* optimize */
m_sets[0].optimizeIncremental(1+(m_sets[0].m_leaves*m_dupdates)/100);
if(m_fixedleft)
/*printf("---------------------------------------------------------\n");
printf("m_sets[0].m_leaves=%d\n",m_sets[0].m_leaves);
printf("m_sets[1].m_leaves=%d\n",m_sets[1].m_leaves);
printf("numPairs = %d\n",getOverlappingPairCache()->getNumOverlappingPairs());
{
const int count=1+(m_sets[1].m_leaves*m_fupdates)/100;
m_sets[1].optimizeIncremental(1+(m_sets[1].m_leaves*m_fupdates)/100);
m_fixedleft=btMax<int>(0,m_fixedleft-count);
int i;
for (i=0;i<getOverlappingPairCache()->getNumOverlappingPairs();i++)
{
printf("pair[%d]=(%d,%d),",i,getOverlappingPairCache()->getOverlappingPairArray()[i].m_pProxy0->getUid(),
getOverlappingPairCache()->getOverlappingPairArray()[i].m_pProxy1->getUid());
}
printf("\n");
}
/* dynamic -> fixed set */
m_stageCurrent=(m_stageCurrent+1)%STAGECOUNT;
btDbvtProxy* current=m_stageRoots[m_stageCurrent];
if(current)
*/
SPC(m_profiling.m_total);
/* optimize */
m_sets[0].optimizeIncremental(1+(m_sets[0].m_leaves*m_dupdates)/100);
if(m_fixedleft)
{
btDbvtTreeCollider collider(this);
do {
btDbvtProxy* next=current->links[1];
listremove(current,m_stageRoots[current->stage]);
listappend(current,m_stageRoots[STAGECOUNT]);
#if DBVT_BP_ACCURATESLEEPING
m_paircache->removeOverlappingPairsContainingProxy(current,dispatcher);
collider.proxy=current;
btDbvt::collideTV(m_sets[0].m_root,current->aabb,collider);
btDbvt::collideTV(m_sets[1].m_root,current->aabb,collider);
#endif
m_sets[0].remove(current->leaf);
current->leaf = m_sets[1].insert(current->aabb,current);
current->stage = STAGECOUNT;
current = next;
const int count=1+(m_sets[1].m_leaves*m_fupdates)/100;
m_sets[1].optimizeIncremental(1+(m_sets[1].m_leaves*m_fupdates)/100);
m_fixedleft=btMax<int>(0,m_fixedleft-count);
}
/* dynamic -> fixed set */
m_stageCurrent=(m_stageCurrent+1)%STAGECOUNT;
btDbvtProxy* current=m_stageRoots[m_stageCurrent];
if(current)
{
btDbvtTreeCollider collider(this);
do {
btDbvtProxy* next=current->links[1];
listremove(current,m_stageRoots[current->stage]);
listappend(current,m_stageRoots[STAGECOUNT]);
#if DBVT_BP_ACCURATESLEEPING
m_paircache->removeOverlappingPairsContainingProxy(current,dispatcher);
collider.proxy=current;
btDbvt::collideTV(m_sets[0].m_root,current->aabb,collider);
btDbvt::collideTV(m_sets[1].m_root,current->aabb,collider);
#endif
m_sets[0].remove(current->leaf);
ATTRIBUTE_ALIGNED16(btDbvtVolume) curAabb=btDbvtVolume::FromMM(current->m_aabbMin,current->m_aabbMax);
current->leaf = m_sets[1].insert(curAabb,current);
current->stage = STAGECOUNT;
current = next;
} while(current);
m_fixedleft=m_sets[1].m_leaves;
m_needcleanup=true;
m_fixedleft=m_sets[1].m_leaves;
m_needcleanup=true;
}
/* collide dynamics */
/* collide dynamics */
{
btDbvtTreeCollider collider(this);
if(m_deferedcollide)
btDbvtTreeCollider collider(this);
if(m_deferedcollide)
{
SPC(m_profiling.m_fdcollide);
btDbvt::collideTT(m_sets[0].m_root,m_sets[1].m_root,collider);
SPC(m_profiling.m_fdcollide);
m_sets[0].collideTTpersistentStack(m_sets[0].m_root,m_sets[1].m_root,collider);
}
if(m_deferedcollide)
if(m_deferedcollide)
{
SPC(m_profiling.m_ddcollide);
btDbvt::collideTT(m_sets[0].m_root,m_sets[0].m_root,collider);
SPC(m_profiling.m_ddcollide);
m_sets[0].collideTTpersistentStack(m_sets[0].m_root,m_sets[0].m_root,collider);
}
}
/* clean up */
if(m_needcleanup)
/* clean up */
if(m_needcleanup)
{
SPC(m_profiling.m_cleanup);
btBroadphasePairArray& pairs=m_paircache->getOverlappingPairArray();
if(pairs.size()>0)
SPC(m_profiling.m_cleanup);
btBroadphasePairArray& pairs=m_paircache->getOverlappingPairArray();
if(pairs.size()>0)
{
const int ci=pairs.size();
int ni=btMin(ci,btMax<int>(m_newpairs,(ci*m_cupdates)/100));
for(int i=0;i<ni;++i)
int ni=btMin(pairs.size(),btMax<int>(m_newpairs,(pairs.size()*m_cupdates)/100));
for(int i=0;i<ni;++i)
{
btBroadphasePair& p=pairs[(m_cid+i)%ci];
btDbvtProxy* pa=(btDbvtProxy*)p.m_pProxy0;
btDbvtProxy* pb=(btDbvtProxy*)p.m_pProxy1;
if(!Intersect(pa->leaf->volume,pb->leaf->volume))
btBroadphasePair& p=pairs[(m_cid+i)%pairs.size()];
btDbvtProxy* pa=(btDbvtProxy*)p.m_pProxy0;
btDbvtProxy* pb=(btDbvtProxy*)p.m_pProxy1;
if(!Intersect(pa->leaf->volume,pb->leaf->volume))
{
#if DBVT_BP_SORTPAIRS
if(pa>pb) btSwap(pa,pb);
#endif
m_paircache->removeOverlappingPair(pa,pb,dispatcher);
--ni;--i;
#if DBVT_BP_SORTPAIRS
if(pa->m_uniqueId>pb->m_uniqueId)
btSwap(pa,pb);
#endif
m_paircache->removeOverlappingPair(pa,pb,dispatcher);
--ni;--i;
}
}
if(pairs.size()>0) m_cid=(m_cid+ni)%pairs.size(); else m_cid=0;
if(pairs.size()>0) m_cid=(m_cid+ni)%pairs.size(); else m_cid=0;
}
}
++m_pid;
m_newpairs=1;
m_needcleanup=false;
if(m_updates_call>0)
++m_pid;
m_newpairs=1;
m_needcleanup=false;
if(m_updates_call>0)
{ m_updates_ratio=m_updates_done/(btScalar)m_updates_call; }
else
{ m_updates_ratio=0; }
m_updates_done/=2;
m_updates_call/=2;
m_updates_done/=2;
m_updates_call/=2;
}
//
void btDbvtBroadphase::optimize()
{
m_sets[0].optimizeTopDown();
m_sets[1].optimizeTopDown();
m_sets[0].optimizeTopDown();
m_sets[1].optimizeTopDown();
}
//
btOverlappingPairCache* btDbvtBroadphase::getOverlappingPairCache()
{
return(m_paircache);
return(m_paircache);
}
//
const btOverlappingPairCache* btDbvtBroadphase::getOverlappingPairCache() const
{
return(m_paircache);
return(m_paircache);
}
//
@ -402,16 +547,49 @@ void btDbvtBroadphase::getBroadphaseAabb(btVector3& aabbMin,btVector3& aab
ATTRIBUTE_ALIGNED16(btDbvtVolume) bounds;
if(!m_sets[0].empty())
if(!m_sets[1].empty()) Merge( m_sets[0].m_root->volume,
m_sets[1].m_root->volume,bounds);
else
bounds=m_sets[0].m_root->volume;
else if(!m_sets[1].empty()) bounds=m_sets[1].m_root->volume;
else
bounds=btDbvtVolume::FromCR(btVector3(0,0,0),0);
aabbMin=bounds.Mins();
aabbMax=bounds.Maxs();
if(!m_sets[0].empty())
if(!m_sets[1].empty()) Merge( m_sets[0].m_root->volume,
m_sets[1].m_root->volume,bounds);
else
bounds=m_sets[0].m_root->volume;
else if(!m_sets[1].empty()) bounds=m_sets[1].m_root->volume;
else
bounds=btDbvtVolume::FromCR(btVector3(0,0,0),0);
aabbMin=bounds.Mins();
aabbMax=bounds.Maxs();
}
void btDbvtBroadphase::resetPool(btDispatcher* dispatcher)
{
int totalObjects = m_sets[0].m_leaves + m_sets[1].m_leaves;
if (!totalObjects)
{
//reset internal dynamic tree data structures
m_sets[0].clear();
m_sets[1].clear();
m_deferedcollide = false;
m_needcleanup = true;
m_prediction = 1/(btScalar)2;
m_stageCurrent = 0;
m_fixedleft = 0;
m_fupdates = 1;
m_dupdates = 0;
m_cupdates = 10;
m_newpairs = 1;
m_updates_call = 0;
m_updates_done = 0;
m_updates_ratio = 0;
m_gid = 0;
m_pid = 0;
m_cid = 0;
for(int i=0;i<=STAGECOUNT;++i)
{
m_stageRoots[i]=0;
}
}
}
//
@ -422,9 +600,9 @@ void btDbvtBroadphase::printStats()
#if DBVT_BP_ENABLE_BENCHMARK
struct btBroadphaseBenchmark
{
{
struct Experiment
{
{
const char* name;
int object_count;
int update_count;
@ -432,109 +610,109 @@ struct btBroadphaseBenchmark
int iterations;
btScalar speed;
btScalar amplitude;
};
};
struct Object
{
{
btVector3 center;
btVector3 extents;
btBroadphaseProxy* proxy;
btScalar time;
void update(btScalar speed,btScalar amplitude,btBroadphaseInterface* pbi)
{
{
time += speed;
center[0] = btCos(time*(btScalar)2.17)*amplitude+
btSin(time)*amplitude/2;
btSin(time)*amplitude/2;
center[1] = btCos(time*(btScalar)1.38)*amplitude+
btSin(time)*amplitude;
btSin(time)*amplitude;
center[2] = btSin(time*(btScalar)0.777)*amplitude;
pbi->setAabb(proxy,center-extents,center+extents,0);
}
};
}
};
static int UnsignedRand(int range=RAND_MAX-1) { return(rand()%(range+1)); }
static btScalar UnitRand() { return(UnsignedRand(16384)/(btScalar)16384); }
static void OutputTime(const char* name,btClock& c,unsigned count=0)
{
{
const unsigned long us=c.getTimeMicroseconds();
const unsigned long ms=(us+500)/1000;
const btScalar sec=us/(btScalar)(1000*1000);
if(count>0)
printf("%s : %u us (%u ms), %.2f/s\r\n",name,us,ms,count/sec);
else
else
printf("%s : %u us (%u ms)\r\n",name,us,ms);
}
};
}
};
void btDbvtBroadphase::benchmark(btBroadphaseInterface* pbi)
{
static const btBroadphaseBenchmark::Experiment experiments[]=
static const btBroadphaseBenchmark::Experiment experiments[]=
{
{"1024o.10%",1024,10,0,8192,(btScalar)0.005,(btScalar)100},
/*{"4096o.10%",4096,10,0,8192,(btScalar)0.005,(btScalar)100},
{"8192o.10%",8192,10,0,8192,(btScalar)0.005,(btScalar)100},*/
{"1024o.10%",1024,10,0,8192,(btScalar)0.005,(btScalar)100},
/*{"4096o.10%",4096,10,0,8192,(btScalar)0.005,(btScalar)100},
{"8192o.10%",8192,10,0,8192,(btScalar)0.005,(btScalar)100},*/
};
static const int nexperiments=sizeof(experiments)/sizeof(experiments[0]);
btAlignedObjectArray<btBroadphaseBenchmark::Object*> objects;
btClock wallclock;
/* Begin */
for(int iexp=0;iexp<nexperiments;++iexp)
static const int nexperiments=sizeof(experiments)/sizeof(experiments[0]);
btAlignedObjectArray<btBroadphaseBenchmark::Object*> objects;
btClock wallclock;
/* Begin */
for(int iexp=0;iexp<nexperiments;++iexp)
{
const btBroadphaseBenchmark::Experiment& experiment=experiments[iexp];
const int object_count=experiment.object_count;
const int update_count=(object_count*experiment.update_count)/100;
const int spawn_count=(object_count*experiment.spawn_count)/100;
const btScalar speed=experiment.speed;
const btScalar amplitude=experiment.amplitude;
printf("Experiment #%u '%s':\r\n",iexp,experiment.name);
printf("\tObjects: %u\r\n",object_count);
printf("\tUpdate: %u\r\n",update_count);
printf("\tSpawn: %u\r\n",spawn_count);
printf("\tSpeed: %f\r\n",speed);
printf("\tAmplitude: %f\r\n",amplitude);
srand(180673);
/* Create objects */
wallclock.reset();
objects.reserve(object_count);
for(int i=0;i<object_count;++i)
const btBroadphaseBenchmark::Experiment& experiment=experiments[iexp];
const int object_count=experiment.object_count;
const int update_count=(object_count*experiment.update_count)/100;
const int spawn_count=(object_count*experiment.spawn_count)/100;
const btScalar speed=experiment.speed;
const btScalar amplitude=experiment.amplitude;
printf("Experiment #%u '%s':\r\n",iexp,experiment.name);
printf("\tObjects: %u\r\n",object_count);
printf("\tUpdate: %u\r\n",update_count);
printf("\tSpawn: %u\r\n",spawn_count);
printf("\tSpeed: %f\r\n",speed);
printf("\tAmplitude: %f\r\n",amplitude);
srand(180673);
/* Create objects */
wallclock.reset();
objects.reserve(object_count);
for(int i=0;i<object_count;++i)
{
btBroadphaseBenchmark::Object* po=new btBroadphaseBenchmark::Object();
po->center[0]=btBroadphaseBenchmark::UnitRand()*50;
po->center[1]=btBroadphaseBenchmark::UnitRand()*50;
po->center[2]=btBroadphaseBenchmark::UnitRand()*50;
po->extents[0]=btBroadphaseBenchmark::UnitRand()*2+2;
po->extents[1]=btBroadphaseBenchmark::UnitRand()*2+2;
po->extents[2]=btBroadphaseBenchmark::UnitRand()*2+2;
po->time=btBroadphaseBenchmark::UnitRand()*2000;
po->proxy=pbi->createProxy(po->center-po->extents,po->center+po->extents,0,po,1,1,0,0);
objects.push_back(po);
btBroadphaseBenchmark::Object* po=new btBroadphaseBenchmark::Object();
po->center[0]=btBroadphaseBenchmark::UnitRand()*50;
po->center[1]=btBroadphaseBenchmark::UnitRand()*50;
po->center[2]=btBroadphaseBenchmark::UnitRand()*50;
po->extents[0]=btBroadphaseBenchmark::UnitRand()*2+2;
po->extents[1]=btBroadphaseBenchmark::UnitRand()*2+2;
po->extents[2]=btBroadphaseBenchmark::UnitRand()*2+2;
po->time=btBroadphaseBenchmark::UnitRand()*2000;
po->proxy=pbi->createProxy(po->center-po->extents,po->center+po->extents,0,po,1,1,0,0);
objects.push_back(po);
}
btBroadphaseBenchmark::OutputTime("\tInitialization",wallclock);
/* First update */
wallclock.reset();
for(int i=0;i<objects.size();++i)
btBroadphaseBenchmark::OutputTime("\tInitialization",wallclock);
/* First update */
wallclock.reset();
for(int i=0;i<objects.size();++i)
{
objects[i]->update(speed,amplitude,pbi);
objects[i]->update(speed,amplitude,pbi);
}
btBroadphaseBenchmark::OutputTime("\tFirst update",wallclock);
/* Updates */
wallclock.reset();
for(int i=0;i<experiment.iterations;++i)
btBroadphaseBenchmark::OutputTime("\tFirst update",wallclock);
/* Updates */
wallclock.reset();
for(int i=0;i<experiment.iterations;++i)
{
for(int j=0;j<update_count;++j)
for(int j=0;j<update_count;++j)
{
objects[j]->update(speed,amplitude,pbi);
objects[j]->update(speed,amplitude,pbi);
}
pbi->calculateOverlappingPairs(0);
pbi->calculateOverlappingPairs(0);
}
btBroadphaseBenchmark::OutputTime("\tUpdate",wallclock,experiment.iterations);
/* Clean up */
wallclock.reset();
for(int i=0;i<objects.size();++i)
btBroadphaseBenchmark::OutputTime("\tUpdate",wallclock,experiment.iterations);
/* Clean up */
wallclock.reset();
for(int i=0;i<objects.size();++i)
{
pbi->destroyProxy(objects[i]->proxy,0);
delete objects[i];
pbi->destroyProxy(objects[i]->proxy,0);
delete objects[i];
}
objects.resize(0);
btBroadphaseBenchmark::OutputTime("\tRelease",wallclock);
objects.resize(0);
btBroadphaseBenchmark::OutputTime("\tRelease",wallclock);
}
}
@ -546,3 +724,4 @@ void btDbvtBroadphase::benchmark(btBroadphaseInterface*)
#if DBVT_BP_PROFILE
#undef SPC
#endif

@ -24,15 +24,15 @@ subject to the following restrictions:
//
#define DBVT_BP_PROFILE 0
#define DBVT_BP_SORTPAIRS 1
//#define DBVT_BP_SORTPAIRS 1
#define DBVT_BP_PREVENTFALSEUPDATE 0
#define DBVT_BP_ACCURATESLEEPING 0
#define DBVT_BP_ENABLE_BENCHMARK 0
#define DBVT_BP_MARGIN (btScalar)0.05
#if DBVT_BP_PROFILE
#define DBVT_BP_PROFILING_RATE 256
#include "LinearMath/btQuickprof.h"
#define DBVT_BP_PROFILING_RATE 256
#include "LinearMath/btQuickprof.h"
#endif
//
@ -40,16 +40,16 @@ subject to the following restrictions:
//
struct btDbvtProxy : btBroadphaseProxy
{
/* Fields */
btDbvtAabbMm aabb;
btDbvtNode* leaf;
btDbvtProxy* links[2];
int stage;
/* ctor */
btDbvtProxy(void* userPtr,short int collisionFilterGroup, short int collisionFilterMask) :
btBroadphaseProxy(userPtr,collisionFilterGroup,collisionFilterMask)
/* Fields */
//btDbvtAabbMm aabb;
btDbvtNode* leaf;
btDbvtProxy* links[2];
int stage;
/* ctor */
btDbvtProxy(const btVector3& aabbMin,const btVector3& aabbMax,void* userPtr,short int collisionFilterGroup, short int collisionFilterMask) :
btBroadphaseProxy(aabbMin,aabbMax,userPtr,collisionFilterGroup,collisionFilterMask)
{
links[0]=links[1]=0;
links[0]=links[1]=0;
}
};
@ -60,57 +60,67 @@ typedef btAlignedObjectArray<btDbvtProxy*> btDbvtProxyArray;
///This is a very fast broadphase, especially for very dynamic worlds where many objects are moving. Its insert/add and remove of objects is generally faster than the sweep and prune broadphases btAxisSweep3 and bt32BitAxisSweep3.
struct btDbvtBroadphase : btBroadphaseInterface
{
/* Config */
enum {
/* Config */
enum {
DYNAMIC_SET = 0, /* Dynamic set index */
FIXED_SET = 1, /* Fixed set index */
STAGECOUNT = 2 /* Number of stages */
};
/* Fields */
btDbvt m_sets[2]; // Dbvt sets
btDbvtProxy* m_stageRoots[STAGECOUNT+1]; // Stages list
btOverlappingPairCache* m_paircache; // Pair cache
btScalar m_prediction; // Velocity prediction
int m_stageCurrent; // Current stage
int m_fupdates; // % of fixed updates per frame
int m_dupdates; // % of dynamic updates per frame
int m_cupdates; // % of cleanup updates per frame
int m_newpairs; // Number of pairs created
int m_fixedleft; // Fixed optimization left
unsigned m_updates_call; // Number of updates call
unsigned m_updates_done; // Number of updates done
btScalar m_updates_ratio; // m_updates_done/m_updates_call
int m_pid; // Parse id
int m_cid; // Cleanup index
int m_gid; // Gen id
bool m_releasepaircache; // Release pair cache on delete
bool m_deferedcollide; // Defere dynamic/static collision to collide call
bool m_needcleanup; // Need to run cleanup?
};
/* Fields */
btDbvt m_sets[2]; // Dbvt sets
btDbvtProxy* m_stageRoots[STAGECOUNT+1]; // Stages list
btOverlappingPairCache* m_paircache; // Pair cache
btScalar m_prediction; // Velocity prediction
int m_stageCurrent; // Current stage
int m_fupdates; // % of fixed updates per frame
int m_dupdates; // % of dynamic updates per frame
int m_cupdates; // % of cleanup updates per frame
int m_newpairs; // Number of pairs created
int m_fixedleft; // Fixed optimization left
unsigned m_updates_call; // Number of updates call
unsigned m_updates_done; // Number of updates done
btScalar m_updates_ratio; // m_updates_done/m_updates_call
int m_pid; // Parse id
int m_cid; // Cleanup index
int m_gid; // Gen id
bool m_releasepaircache; // Release pair cache on delete
bool m_deferedcollide; // Defere dynamic/static collision to collide call
bool m_needcleanup; // Need to run cleanup?
#if DBVT_BP_PROFILE
btClock m_clock;
struct {
btClock m_clock;
struct {
unsigned long m_total;
unsigned long m_ddcollide;
unsigned long m_fdcollide;
unsigned long m_cleanup;
unsigned long m_jobcount;
} m_profiling;
} m_profiling;
#endif
/* Methods */
btDbvtBroadphase(btOverlappingPairCache* paircache=0);
~btDbvtBroadphase();
void collide(btDispatcher* dispatcher);
void optimize();
/* btBroadphaseInterface Implementation */
btBroadphaseProxy* createProxy(const btVector3& aabbMin,const btVector3& aabbMax,int shapeType,void* userPtr,short int collisionFilterGroup,short int collisionFilterMask,btDispatcher* dispatcher,void* multiSapProxy);
void destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
void setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax,btDispatcher* dispatcher);
void calculateOverlappingPairs(btDispatcher* dispatcher);
btOverlappingPairCache* getOverlappingPairCache();
const btOverlappingPairCache* getOverlappingPairCache() const;
void getBroadphaseAabb(btVector3& aabbMin,btVector3& aabbMax) const;
void printStats();
static void benchmark(btBroadphaseInterface*);
/* Methods */
btDbvtBroadphase(btOverlappingPairCache* paircache=0);
~btDbvtBroadphase();
void collide(btDispatcher* dispatcher);
void optimize();
/* btBroadphaseInterface Implementation */
btBroadphaseProxy* createProxy(const btVector3& aabbMin,const btVector3& aabbMax,int shapeType,void* userPtr,short int collisionFilterGroup,short int collisionFilterMask,btDispatcher* dispatcher,void* multiSapProxy);
void destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
void setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax,btDispatcher* dispatcher);
virtual void rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin=btVector3(0,0,0), const btVector3& aabbMax = btVector3(0,0,0));
virtual void getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const;
void calculateOverlappingPairs(btDispatcher* dispatcher);
btOverlappingPairCache* getOverlappingPairCache();
const btOverlappingPairCache* getOverlappingPairCache() const;
void getBroadphaseAabb(btVector3& aabbMin,btVector3& aabbMax) const;
void printStats();
static void benchmark(btBroadphaseInterface*);
void performDeferredRemoval(btDispatcher* dispatcher);
///reset broadphase internal structures, to ensure determinism/reproducability
virtual void resetPool(btDispatcher* dispatcher);
};
#endif

@ -46,22 +46,25 @@ struct btDispatcherInfo
m_enableSPU(true),
m_useEpa(true),
m_allowedCcdPenetration(btScalar(0.04)),
m_useConvexConservativeDistanceUtil(true),
m_convexConservativeDistanceThreshold(0.0f),
m_stackAllocator(0)
{
}
btScalar m_timeStep;
int m_stepCount;
int m_dispatchFunc;
int m_stepCount;
int m_dispatchFunc;
mutable btScalar m_timeOfImpact;
bool m_useContinuous;
bool m_useContinuous;
class btIDebugDraw* m_debugDraw;
bool m_enableSatConvex;
bool m_enableSPU;
bool m_useEpa;
bool m_enableSatConvex;
bool m_enableSPU;
bool m_useEpa;
btScalar m_allowedCcdPenetration;
bool m_useConvexConservativeDistanceUtil;
btScalar m_convexConservativeDistanceThreshold;
btStackAlloc* m_stackAllocator;
};
///The btDispatcher interface class can be used in combination with broadphase to dispatch calculations for overlapping pairs.

@ -149,6 +149,22 @@ amin.getZ() >= bmin.getZ() && amax.getZ() <= bmax.getZ();
void btMultiSapBroadphase::getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const
{
btMultiSapProxy* multiProxy = static_cast<btMultiSapProxy*>(proxy);
aabbMin = multiProxy->m_aabbMin;
aabbMax = multiProxy->m_aabbMax;
}
void btMultiSapBroadphase::rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin,const btVector3& aabbMax)
{
for (int i=0;i<m_multiSapProxies.size();i++)
{
rayCallback.process(m_multiSapProxies[i]);
}
}
//#include <stdio.h>
void btMultiSapBroadphase::setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* dispatcher)
@ -208,7 +224,9 @@ void btMultiSapBroadphase::setAabb(btBroadphaseProxy* proxy,const btVector3& aab
m_optimizedAabbTree->reportAabbOverlappingNodex(&myNodeCallback,aabbMin,aabbMax);
if (m_optimizedAabbTree)
m_optimizedAabbTree->reportAabbOverlappingNodex(&myNodeCallback,aabbMin,aabbMax);
int i;
for ( i=0;i<multiProxy->m_bridgeProxies.size();i++)
@ -464,3 +482,8 @@ void btMultiSapBroadphase::printStats()
*/
}
void btMultiSapBroadphase::resetPool(btDispatcher* dispatcher)
{
// not yet
}

@ -26,6 +26,7 @@ class btSimpleBroadphase;
typedef btAlignedObjectArray<btBroadphaseInterface*> btSapBroadphaseArray;
///The btMultiSapBroadphase is a research project, not recommended to use in production. Use btAxisSweep3 or btDbvtBroadphase instead.
///The btMultiSapBroadphase is a broadphase that contains multiple SAP broadphases.
///The user can add SAP broadphases that cover the world. A btBroadphaseProxy can be in multiple child broadphases at the same time.
///A btQuantizedBvh acceleration structures finds overlapping SAPs for each btBroadphaseProxy.
@ -72,7 +73,7 @@ public:
short int m_collisionFilterMask;
*/
btMultiSapProxy(const btVector3& aabbMin, const btVector3& aabbMax,int shapeType,void* userPtr, short int collisionFilterGroup,short int collisionFilterMask)
:btBroadphaseProxy(userPtr,collisionFilterGroup,collisionFilterMask),
:btBroadphaseProxy(aabbMin,aabbMax,userPtr,collisionFilterGroup,collisionFilterMask),
m_aabbMin(aabbMin),
m_aabbMax(aabbMax),
m_shapeType(shapeType)
@ -108,6 +109,9 @@ public:
virtual btBroadphaseProxy* createProxy( const btVector3& aabbMin, const btVector3& aabbMax,int shapeType,void* userPtr, short int collisionFilterGroup,short int collisionFilterMask, btDispatcher* dispatcher,void* multiSapProxy);
virtual void destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
virtual void setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* dispatcher);
virtual void getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const;
virtual void rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback,const btVector3& aabbMin=btVector3(0,0,0),const btVector3& aabbMax=btVector3(0,0,0));
void addToChildBroadphase(btMultiSapProxy* parentMultiSapProxy, btBroadphaseProxy* childProxy, btBroadphaseInterface* childBroadphase);
@ -139,6 +143,9 @@ public:
void quicksort (btBroadphasePairArray& a, int lo, int hi);
///reset broadphase internal structures, to ensure determinism/reproducability
virtual void resetPool(btDispatcher* dispatcher);
};
#endif //BT_MULTI_SAP_BROADPHASE

@ -19,6 +19,7 @@ subject to the following restrictions:
#include "btDispatcher.h"
#include "btCollisionAlgorithm.h"
#include "LinearMath/btAabbUtil2.h"
#include <stdio.h>
@ -33,7 +34,8 @@ int gFindPairs =0;
btHashedOverlappingPairCache::btHashedOverlappingPairCache():
m_overlapFilterCallback(0),
m_blockedForChanges(false)
m_blockedForChanges(false),
m_ghostPairCallback(0)
{
int initialAllocatedSize= 2;
m_overlappingPairArray.reserve(initialAllocatedSize);
@ -45,7 +47,6 @@ btHashedOverlappingPairCache::btHashedOverlappingPairCache():
btHashedOverlappingPairCache::~btHashedOverlappingPairCache()
{
//todo/test: show we erase/delete data, or is it automatic
}
@ -135,7 +136,8 @@ void btHashedOverlappingPairCache::removeOverlappingPairsContainingProxy(btBroad
btBroadphasePair* btHashedOverlappingPairCache::findPair(btBroadphaseProxy* proxy0, btBroadphaseProxy* proxy1)
{
gFindPairs++;
if(proxy0>proxy1) btSwap(proxy0,proxy1);
if(proxy0->m_uniqueId>proxy1->m_uniqueId)
btSwap(proxy0,proxy1);
int proxyId1 = proxy0->getUid();
int proxyId2 = proxy1->getUid();
@ -211,7 +213,8 @@ void btHashedOverlappingPairCache::growTables()
btBroadphasePair* btHashedOverlappingPairCache::internalAddPair(btBroadphaseProxy* proxy0, btBroadphaseProxy* proxy1)
{
if(proxy0>proxy1) btSwap(proxy0,proxy1);
if(proxy0->m_uniqueId>proxy1->m_uniqueId)
btSwap(proxy0,proxy1);
int proxyId1 = proxy0->getUid();
int proxyId2 = proxy1->getUid();
@ -238,6 +241,11 @@ btBroadphasePair* btHashedOverlappingPairCache::internalAddPair(btBroadphaseProx
int count = m_overlappingPairArray.size();
int oldCapacity = m_overlappingPairArray.capacity();
void* mem = &m_overlappingPairArray.expand();
//this is where we add an actual pair, so also call the 'ghost'
if (m_ghostPairCallback)
m_ghostPairCallback->addOverlappingPair(proxy0,proxy1);
int newCapacity = m_overlappingPairArray.capacity();
if (oldCapacity < newCapacity)
@ -251,7 +259,7 @@ btBroadphasePair* btHashedOverlappingPairCache::internalAddPair(btBroadphaseProx
// pair->m_pProxy0 = proxy0;
// pair->m_pProxy1 = proxy1;
pair->m_algorithm = 0;
pair->m_userInfo = 0;
pair->m_internalTmpValue = 0;
m_next[count] = m_hashTable[hash];
@ -265,7 +273,8 @@ btBroadphasePair* btHashedOverlappingPairCache::internalAddPair(btBroadphaseProx
void* btHashedOverlappingPairCache::removeOverlappingPair(btBroadphaseProxy* proxy0, btBroadphaseProxy* proxy1,btDispatcher* dispatcher)
{
gRemovePairs++;
if(proxy0>proxy1) btSwap(proxy0,proxy1);
if(proxy0->m_uniqueId>proxy1->m_uniqueId)
btSwap(proxy0,proxy1);
int proxyId1 = proxy0->getUid();
int proxyId2 = proxy1->getUid();
@ -282,7 +291,7 @@ void* btHashedOverlappingPairCache::removeOverlappingPair(btBroadphaseProxy* pro
cleanOverlappingPair(*pair,dispatcher);
void* userData = pair->m_userInfo;
void* userData = pair->m_internalInfo1;
btAssert(pair->m_pProxy0->getUid() == proxyId1);
btAssert(pair->m_pProxy1->getUid() == proxyId2);
@ -317,6 +326,9 @@ void* btHashedOverlappingPairCache::removeOverlappingPair(btBroadphaseProxy* pro
int lastPairIndex = m_overlappingPairArray.size() - 1;
if (m_ghostPairCallback)
m_ghostPairCallback->removeOverlappingPair(proxy0, proxy1,dispatcher);
// If the removed pair is the last pair, we are done.
if (lastPairIndex == pairIndex)
{
@ -384,6 +396,35 @@ void btHashedOverlappingPairCache::processAllOverlappingPairs(btOverlapCallback*
}
}
void btHashedOverlappingPairCache::sortOverlappingPairs(btDispatcher* dispatcher)
{
///need to keep hashmap in sync with pair address, so rebuild all
btBroadphasePairArray tmpPairs;
int i;
for (i=0;i<m_overlappingPairArray.size();i++)
{
tmpPairs.push_back(m_overlappingPairArray[i]);
}
for (i=0;i<tmpPairs.size();i++)
{
removeOverlappingPair(tmpPairs[i].m_pProxy0,tmpPairs[i].m_pProxy1,dispatcher);
}
for (i = 0; i < m_next.size(); i++)
{
m_next[i] = BT_NULL_PAIR;
}
tmpPairs.quickSort(btBroadphasePairSortPredicate());
for (i=0;i<tmpPairs.size();i++)
{
addOverlappingPair(tmpPairs[i].m_pProxy0,tmpPairs[i].m_pProxy1);
}
}
void* btSortedOverlappingPairCache::removeOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1, btDispatcher* dispatcher )
@ -397,8 +438,10 @@ void* btSortedOverlappingPairCache::removeOverlappingPair(btBroadphaseProxy* pro
{
gOverlappingPairs--;
btBroadphasePair& pair = m_overlappingPairArray[findIndex];
void* userData = pair.m_userInfo;
void* userData = pair.m_internalInfo1;
cleanOverlappingPair(pair,dispatcher);
if (m_ghostPairCallback)
m_ghostPairCallback->removeOverlappingPair(proxy0, proxy1,dispatcher);
m_overlappingPairArray.swap(findIndex,m_overlappingPairArray.capacity()-1);
m_overlappingPairArray.pop_back();
@ -419,15 +462,19 @@ void* btSortedOverlappingPairCache::removeOverlappingPair(btBroadphaseProxy* pro
btBroadphasePair* btSortedOverlappingPairCache::addOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1)
{
//don't add overlap with own
assert(proxy0 != proxy1);
btAssert(proxy0 != proxy1);
if (!needsBroadphaseCollision(proxy0,proxy1))
return 0;
void* mem = &m_overlappingPairArray.expand();
btBroadphasePair* pair = new (mem) btBroadphasePair(*proxy0,*proxy1);
gOverlappingPairs++;
gAddedPairs++;
if (m_ghostPairCallback)
m_ghostPairCallback->addOverlappingPair(proxy0, proxy1);
return pair;
}
@ -446,7 +493,7 @@ btBroadphasePair* btSortedOverlappingPairCache::addOverlappingPair(btBroadphaseP
if (findIndex < m_overlappingPairArray.size())
{
//assert(it != m_overlappingPairSet.end());
//btAssert(it != m_overlappingPairSet.end());
btBroadphasePair* pair = &m_overlappingPairArray[findIndex];
return pair;
}
@ -476,8 +523,9 @@ void btSortedOverlappingPairCache::processAllOverlappingPairs(btOverlapCallback*
if (callback->processOverlap(*pair))
{
cleanOverlappingPair(*pair,dispatcher);
m_overlappingPairArray.swap(i,m_overlappingPairArray.capacity()-1);
pair->m_pProxy0 = 0;
pair->m_pProxy1 = 0;
m_overlappingPairArray.swap(i,m_overlappingPairArray.size()-1);
m_overlappingPairArray.pop_back();
gOverlappingPairs--;
} else
@ -493,7 +541,8 @@ void btSortedOverlappingPairCache::processAllOverlappingPairs(btOverlapCallback*
btSortedOverlappingPairCache::btSortedOverlappingPairCache():
m_blockedForChanges(false),
m_hasDeferredRemoval(true),
m_overlapFilterCallback(0)
m_overlapFilterCallback(0),
m_ghostPairCallback(0)
{
int initialAllocatedSize= 2;
m_overlappingPairArray.reserve(initialAllocatedSize);
@ -501,7 +550,6 @@ btSortedOverlappingPairCache::btSortedOverlappingPairCache():
btSortedOverlappingPairCache::~btSortedOverlappingPairCache()
{
//todo/test: show we erase/delete data, or is it automatic
}
void btSortedOverlappingPairCache::cleanOverlappingPair(btBroadphasePair& pair,btDispatcher* dispatcher)
@ -577,3 +625,9 @@ void btSortedOverlappingPairCache::removeOverlappingPairsContainingProxy(btBroad
processAllOverlappingPairs(&removeCallback,dispatcher);
}
void btSortedOverlappingPairCache::sortOverlappingPairs(btDispatcher* dispatcher)
{
//should already be sorted
}

@ -21,7 +21,6 @@ subject to the following restrictions:
#include "btBroadphaseProxy.h"
#include "btOverlappingPairCallback.h"
#include "LinearMath/btPoint3.h"
#include "LinearMath/btAlignedObjectArray.h"
class btDispatcher;
@ -83,6 +82,11 @@ public:
virtual bool hasDeferredRemoval() = 0;
virtual void setInternalGhostPairCallback(btOverlappingPairCallback* ghostPairCallback)=0;
virtual void sortOverlappingPairs(btDispatcher* dispatcher) = 0;
};
/// Hash-space based Pair Cache, thanks to Erin Catto, Box2D, http://www.box2d.org, and Pierre Terdiman, Codercorner, http://codercorner.com
@ -253,10 +257,19 @@ private:
return false;
}
public:
virtual void setInternalGhostPairCallback(btOverlappingPairCallback* ghostPairCallback)
{
m_ghostPairCallback = ghostPairCallback;
}
virtual void sortOverlappingPairs(btDispatcher* dispatcher);
protected:
btAlignedObjectArray<int> m_hashTable;
btAlignedObjectArray<int> m_next;
btOverlappingPairCallback* m_ghostPairCallback;
};
@ -280,6 +293,8 @@ class btSortedOverlappingPairCache : public btOverlappingPairCache
//if set, use the callback instead of the built in filter in needBroadphaseCollision
btOverlapFilterCallback* m_overlapFilterCallback;
btOverlappingPairCallback* m_ghostPairCallback;
public:
btSortedOverlappingPairCache();
@ -355,12 +370,19 @@ class btSortedOverlappingPairCache : public btOverlappingPairCache
return m_hasDeferredRemoval;
}
virtual void setInternalGhostPairCallback(btOverlappingPairCallback* ghostPairCallback)
{
m_ghostPairCallback = ghostPairCallback;
}
virtual void sortOverlappingPairs(btDispatcher* dispatcher);
};
///btNullPairCache skips add/removal of overlapping pairs. Userful for benchmarking and testing.
///btNullPairCache skips add/removal of overlapping pairs. Userful for benchmarking and unit testing.
class btNullPairCache : public btOverlappingPairCache
{
@ -414,6 +436,11 @@ public:
return true;
}
virtual void setInternalGhostPairCallback(btOverlappingPairCallback* /* ghostPairCallback */)
{
}
virtual btBroadphasePair* addOverlappingPair(btBroadphaseProxy* /*proxy0*/,btBroadphaseProxy* /*proxy1*/)
{
return 0;
@ -427,6 +454,10 @@ public:
virtual void removeOverlappingPairsContainingProxy(btBroadphaseProxy* /*proxy0*/,btDispatcher* /*dispatcher*/)
{
}
virtual void sortOverlappingPairs(btDispatcher* dispatcher)
{
}
};

@ -18,14 +18,18 @@ subject to the following restrictions:
#include "LinearMath/btAabbUtil2.h"
#include "LinearMath/btIDebugDraw.h"
#define RAYAABB2
btQuantizedBvh::btQuantizedBvh() : m_useQuantization(false),
btQuantizedBvh::btQuantizedBvh() :
m_bulletVersion(BT_BULLET_VERSION),
m_useQuantization(false),
//m_traversalMode(TRAVERSAL_STACKLESS_CACHE_FRIENDLY)
m_traversalMode(TRAVERSAL_STACKLESS)
//m_traversalMode(TRAVERSAL_RECURSIVE)
,m_subtreeHeaderCount(0) //PCK: add this line
{
{
m_bvhAabbMin.setValue(-SIMD_INFINITY,-SIMD_INFINITY,-SIMD_INFINITY);
m_bvhAabbMax.setValue(SIMD_INFINITY,SIMD_INFINITY,SIMD_INFINITY);
}
@ -119,7 +123,7 @@ void btQuantizedBvh::buildTree (int startIndex,int endIndex)
int numIndices =endIndex-startIndex;
int curIndex = m_curNodeIndex;
assert(numIndices>0);
btAssert(numIndices>0);
if (numIndices==1)
{
@ -140,8 +144,11 @@ void btQuantizedBvh::buildTree (int startIndex,int endIndex)
int internalNodeIndex = m_curNodeIndex;
setInternalNodeAabbMax(m_curNodeIndex,m_bvhAabbMin);
setInternalNodeAabbMin(m_curNodeIndex,m_bvhAabbMax);
//set the min aabb to 'inf' or a max value, and set the max aabb to a -inf/minimum value.
//the aabb will be expanded during buildTree/mergeInternalNodeAabb with actual node values
setInternalNodeAabbMin(m_curNodeIndex,m_bvhAabbMax);//can't use btVector3(SIMD_INFINITY,SIMD_INFINITY,SIMD_INFINITY)) because of quantization
setInternalNodeAabbMax(m_curNodeIndex,m_bvhAabbMin);//can't use btVector3(-SIMD_INFINITY,-SIMD_INFINITY,-SIMD_INFINITY)) because of quantization
for (i=startIndex;i<endIndex;i++)
{
@ -177,6 +184,9 @@ void btQuantizedBvh::buildTree (int startIndex,int endIndex)
{
updateSubtreeHeaders(leftChildNodexIndex,rightChildNodexIndex);
}
} else
{
}
setInternalNodeEscapeIndex(internalNodeIndex,escapeIndex);
@ -338,6 +348,7 @@ void btQuantizedBvh::reportAabbOverlappingNodex(btNodeOverlapCallback* nodeCallb
int maxIterations = 0;
void btQuantizedBvh::walkStacklessTree(btNodeOverlapCallback* nodeCallback,const btVector3& aabbMin,const btVector3& aabbMax) const
{
btAssert(!m_useQuantization);
@ -352,7 +363,7 @@ void btQuantizedBvh::walkStacklessTree(btNodeOverlapCallback* nodeCallback,const
while (curIndex < m_curNodeIndex)
{
//catch bugs in tree data
assert (walkIterations < m_curNodeIndex);
btAssert (walkIterations < m_curNodeIndex);
walkIterations++;
aabbOverlap = TestAabbAgainstAabb2(aabbMin,aabbMax,rootNode->m_aabbMinOrg,rootNode->m_aabbMaxOrg);
@ -434,6 +445,96 @@ void btQuantizedBvh::walkRecursiveQuantizedTreeAgainstQueryAabb(const btQuantize
void btQuantizedBvh::walkStacklessTreeAgainstRay(btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget, const btVector3& aabbMin, const btVector3& aabbMax, int startNodeIndex,int endNodeIndex) const
{
btAssert(!m_useQuantization);
const btOptimizedBvhNode* rootNode = &m_contiguousNodes[0];
int escapeIndex, curIndex = 0;
int walkIterations = 0;
bool isLeafNode;
//PCK: unsigned instead of bool
unsigned aabbOverlap=0;
unsigned rayBoxOverlap=0;
btScalar lambda_max = 1.0;
/* Quick pruning by quantized box */
btVector3 rayAabbMin = raySource;
btVector3 rayAabbMax = raySource;
rayAabbMin.setMin(rayTarget);
rayAabbMax.setMax(rayTarget);
/* Add box cast extents to bounding box */
rayAabbMin += aabbMin;
rayAabbMax += aabbMax;
#ifdef RAYAABB2
btVector3 rayDir = (rayTarget-raySource);
rayDir.normalize ();
lambda_max = rayDir.dot(rayTarget-raySource);
///what about division by zero? --> just set rayDirection[i] to 1.0
btVector3 rayDirectionInverse;
rayDirectionInverse[0] = rayDir[0] == btScalar(0.0) ? btScalar(1e30) : btScalar(1.0) / rayDir[0];
rayDirectionInverse[1] = rayDir[1] == btScalar(0.0) ? btScalar(1e30) : btScalar(1.0) / rayDir[1];
rayDirectionInverse[2] = rayDir[2] == btScalar(0.0) ? btScalar(1e30) : btScalar(1.0) / rayDir[2];
unsigned int sign[3] = { rayDirectionInverse[0] < 0.0, rayDirectionInverse[1] < 0.0, rayDirectionInverse[2] < 0.0};
#endif
btVector3 bounds[2];
while (curIndex < m_curNodeIndex)
{
btScalar param = 1.0;
//catch bugs in tree data
btAssert (walkIterations < m_curNodeIndex);
walkIterations++;
bounds[0] = rootNode->m_aabbMinOrg;
bounds[1] = rootNode->m_aabbMaxOrg;
/* Add box cast extents */
bounds[0] += aabbMin;
bounds[1] += aabbMax;
aabbOverlap = TestAabbAgainstAabb2(rayAabbMin,rayAabbMax,rootNode->m_aabbMinOrg,rootNode->m_aabbMaxOrg);
//perhaps profile if it is worth doing the aabbOverlap test first
#ifdef RAYAABB2
///careful with this check: need to check division by zero (above) and fix the unQuantize method
///thanks Joerg/hiker for the reproduction case!
///http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=1858
rayBoxOverlap = aabbOverlap ? btRayAabb2 (raySource, rayDirectionInverse, sign, bounds, param, 0.0f, lambda_max) : false;
#else
btVector3 normal;
rayBoxOverlap = btRayAabb(raySource, rayTarget,bounds[0],bounds[1],param, normal);
#endif
isLeafNode = rootNode->m_escapeIndex == -1;
//PCK: unsigned instead of bool
if (isLeafNode && (rayBoxOverlap != 0))
{
nodeCallback->processNode(rootNode->m_subPart,rootNode->m_triangleIndex);
}
//PCK: unsigned instead of bool
if ((rayBoxOverlap != 0) || isLeafNode)
{
rootNode++;
curIndex++;
} else
{
escapeIndex = rootNode->m_escapeIndex;
rootNode += escapeIndex;
curIndex += escapeIndex;
}
}
if (maxIterations < walkIterations)
maxIterations = walkIterations;
}
void btQuantizedBvh::walkStacklessQuantizedTreeAgainstRay(btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget, const btVector3& aabbMin, const btVector3& aabbMax, int startNodeIndex,int endNodeIndex) const
@ -454,9 +555,8 @@ void btQuantizedBvh::walkStacklessQuantizedTreeAgainstRay(btNodeOverlapCallback*
unsigned rayBoxOverlap = 0;
btScalar lambda_max = 1.0;
#define RAYAABB2
#ifdef RAYAABB2
btVector3 rayFrom = raySource;
btVector3 rayDirection = (rayTarget-raySource);
rayDirection.normalize ();
lambda_max = rayDirection.dot(rayTarget-raySource);
@ -502,7 +602,7 @@ void btQuantizedBvh::walkStacklessQuantizedTreeAgainstRay(btNodeOverlapCallback*
#endif//VISUALLY_ANALYZE_BVH
//catch bugs in tree data
assert (walkIterations < subTreeSize);
btAssert (walkIterations < subTreeSize);
walkIterations++;
//PCK: unsigned instead of bool
@ -533,7 +633,9 @@ void btQuantizedBvh::walkStacklessQuantizedTreeAgainstRay(btNodeOverlapCallback*
///thanks Joerg/hiker for the reproduction case!
///http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=1858
//BT_PROFILE("btRayAabb2");
rayBoxOverlap = btRayAabb2 (raySource, rayDirection, sign, bounds, param, 0.0f, lambda_max);
#else
rayBoxOverlap = true;//btRayAabb(raySource, rayTarget, bounds[0], bounds[1], param, normal);
#endif
@ -597,7 +699,7 @@ void btQuantizedBvh::walkStacklessQuantizedTree(btNodeOverlapCallback* nodeCallb
#endif//VISUALLY_ANALYZE_BVH
//catch bugs in tree data
assert (walkIterations < subTreeSize);
btAssert (walkIterations < subTreeSize);
walkIterations++;
//PCK: unsigned instead of bool
@ -652,30 +754,25 @@ void btQuantizedBvh::walkStacklessQuantizedTreeCacheFriendly(btNodeOverlapCallba
void btQuantizedBvh::reportRayOverlappingNodex (btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget) const
{
bool fast_path = m_useQuantization && m_traversalMode == TRAVERSAL_STACKLESS;
if (fast_path)
{
walkStacklessQuantizedTreeAgainstRay(nodeCallback, raySource, rayTarget, btVector3(0, 0, 0), btVector3(0, 0, 0), 0, m_curNodeIndex);
} else {
/* Otherwise fallback to AABB overlap test */
btVector3 aabbMin = raySource;
btVector3 aabbMax = raySource;
aabbMin.setMin(rayTarget);
aabbMax.setMax(rayTarget);
reportAabbOverlappingNodex(nodeCallback,aabbMin,aabbMax);
}
reportBoxCastOverlappingNodex(nodeCallback,raySource,rayTarget,btVector3(0,0,0),btVector3(0,0,0));
}
void btQuantizedBvh::reportBoxCastOverlappingNodex(btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget, const btVector3& aabbMin,const btVector3& aabbMax) const
{
bool fast_path = m_useQuantization && m_traversalMode == TRAVERSAL_STACKLESS;
if (fast_path)
//always use stackless
if (m_useQuantization)
{
walkStacklessQuantizedTreeAgainstRay(nodeCallback, raySource, rayTarget, aabbMin, aabbMax, 0, m_curNodeIndex);
} else {
/* Slow path:
Construct the bounding box for the entire box cast and send that down the tree */
}
else
{
walkStacklessTreeAgainstRay(nodeCallback, raySource, rayTarget, aabbMin, aabbMax, 0, m_curNodeIndex);
}
/*
{
//recursive traversal
btVector3 qaabbMin = raySource;
btVector3 qaabbMax = raySource;
qaabbMin.setMin(rayTarget);
@ -684,6 +781,8 @@ void btQuantizedBvh::reportBoxCastOverlappingNodex(btNodeOverlapCallback* nodeCa
qaabbMax += aabbMax;
reportAabbOverlappingNodex(nodeCallback,qaabbMin,qaabbMax);
}
*/
}
@ -716,17 +815,19 @@ void btQuantizedBvh::assignInternalNodeFromLeafNode(int internalNode,int leafNod
//PCK: include
#include <new>
#if 0
//PCK: consts
static const unsigned BVH_ALIGNMENT = 16;
static const unsigned BVH_ALIGNMENT_MASK = BVH_ALIGNMENT-1;
static const unsigned BVH_ALIGNMENT_BLOCKS = 2;
#endif
unsigned int btQuantizedBvh::getAlignmentSerializationPadding()
{
return BVH_ALIGNMENT_BLOCKS * BVH_ALIGNMENT;
// I changed this to 0 since the extra padding is not needed or used.
return 0;//BVH_ALIGNMENT_BLOCKS * BVH_ALIGNMENT;
}
unsigned btQuantizedBvh::calculateSerializeBufferSize()
@ -742,7 +843,7 @@ unsigned btQuantizedBvh::calculateSerializeBufferSize()
bool btQuantizedBvh::serialize(void *o_alignedDataBuffer, unsigned /*i_dataBufferSize */, bool i_swapEndian)
{
assert(m_subtreeHeaderCount == m_SubtreeHeaders.size());
btAssert(m_subtreeHeaderCount == m_SubtreeHeaders.size());
m_subtreeHeaderCount = m_SubtreeHeaders.size();
/* if (i_dataBufferSize < calculateSerializeBufferSize() || o_alignedDataBuffer == NULL || (((unsigned)o_alignedDataBuffer & BVH_ALIGNMENT_MASK) != 0))
@ -829,6 +930,11 @@ bool btQuantizedBvh::serialize(void *o_alignedDataBuffer, unsigned /*i_dataBuffe
}
}
nodeData += sizeof(btQuantizedBvhNode) * nodeCount;
// this clears the pointer in the member variable it doesn't really do anything to the data
// it does call the destructor on the contained objects, but they are all classes with no destructor defined
// so the memory (which is not freed) is left alone
targetBvh->m_quantizedContiguousNodes.initializeFromBuffer(NULL, 0, 0);
}
else
{
@ -859,6 +965,11 @@ bool btQuantizedBvh::serialize(void *o_alignedDataBuffer, unsigned /*i_dataBuffe
}
}
nodeData += sizeof(btOptimizedBvhNode) * nodeCount;
// this clears the pointer in the member variable it doesn't really do anything to the data
// it does call the destructor on the contained objects, but they are all classes with no destructor defined
// so the memory (which is not freed) is left alone
targetBvh->m_contiguousNodes.initializeFromBuffer(NULL, 0, 0);
}
sizeToAdd = 0;//(BVH_ALIGNMENT-((unsigned)nodeData & BVH_ALIGNMENT_MASK))&BVH_ALIGNMENT_MASK;
@ -896,12 +1007,23 @@ bool btQuantizedBvh::serialize(void *o_alignedDataBuffer, unsigned /*i_dataBuffe
targetBvh->m_SubtreeHeaders[i].m_rootNodeIndex = (m_SubtreeHeaders[i].m_rootNodeIndex);
targetBvh->m_SubtreeHeaders[i].m_subtreeSize = (m_SubtreeHeaders[i].m_subtreeSize);
targetBvh->m_SubtreeHeaders[i] = m_SubtreeHeaders[i];
// need to clear padding in destination buffer
targetBvh->m_SubtreeHeaders[i].m_padding[0] = 0;
targetBvh->m_SubtreeHeaders[i].m_padding[1] = 0;
targetBvh->m_SubtreeHeaders[i].m_padding[2] = 0;
}
}
nodeData += sizeof(btBvhSubtreeInfo) * m_subtreeHeaderCount;
// this clears the pointer in the member variable it doesn't really do anything to the data
// it does call the destructor on the contained objects, but they are all classes with no destructor defined
// so the memory (which is not freed) is left alone
targetBvh->m_SubtreeHeaders.initializeFromBuffer(NULL, 0, 0);
// this wipes the virtual function table pointer at the start of the buffer for the class
*((void**)o_alignedDataBuffer) = NULL;
return true;
}
@ -1015,11 +1137,12 @@ btQuantizedBvh *btQuantizedBvh::deSerializeInPlace(void *i_alignedDataBuffer, un
btQuantizedBvh::btQuantizedBvh(btQuantizedBvh &self, bool /* ownsMemory */) :
m_bvhAabbMin(self.m_bvhAabbMin),
m_bvhAabbMax(self.m_bvhAabbMax),
m_bvhQuantization(self.m_bvhQuantization)
m_bvhQuantization(self.m_bvhQuantization),
m_bulletVersion(BT_BULLET_VERSION)
{
}

@ -158,41 +158,43 @@ typedef btAlignedObjectArray<btBvhSubtreeInfo> BvhSubtreeInfoArray;
///It is recommended to use quantization for better performance and lower memory requirements.
ATTRIBUTE_ALIGNED16(class) btQuantizedBvh
{
protected:
NodeArray m_leafNodes;
NodeArray m_contiguousNodes;
QuantizedNodeArray m_quantizedLeafNodes;
QuantizedNodeArray m_quantizedContiguousNodes;
int m_curNodeIndex;
//quantization data
bool m_useQuantization;
btVector3 m_bvhAabbMin;
btVector3 m_bvhAabbMax;
btVector3 m_bvhQuantization;
public:
BT_DECLARE_ALIGNED_ALLOCATOR();
enum btTraversalMode
{
TRAVERSAL_STACKLESS = 0,
TRAVERSAL_STACKLESS_CACHE_FRIENDLY,
TRAVERSAL_RECURSIVE
};
protected:
btTraversalMode m_traversalMode;
btVector3 m_bvhAabbMin;
btVector3 m_bvhAabbMax;
btVector3 m_bvhQuantization;
int m_bulletVersion; //for serialization versioning. It could also be used to detect endianess.
int m_curNodeIndex;
//quantization data
bool m_useQuantization;
NodeArray m_leafNodes;
NodeArray m_contiguousNodes;
QuantizedNodeArray m_quantizedLeafNodes;
QuantizedNodeArray m_quantizedContiguousNodes;
btTraversalMode m_traversalMode;
BvhSubtreeInfoArray m_SubtreeHeaders;
//This is only used for serialization so we don't have to add serialization directly to btAlignedObjectArray
int m_subtreeHeaderCount;
///two versions, one for quantized and normal nodes. This allows code-reuse while maintaining readability (no template/macro!)
///this might be refactored into a virtual, it is usually not calculated at run-time
@ -296,6 +298,7 @@ protected:
void walkStacklessQuantizedTreeAgainstRay(btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget, const btVector3& aabbMin, const btVector3& aabbMax, int startNodeIndex,int endNodeIndex) const;
void walkStacklessQuantizedTree(btNodeOverlapCallback* nodeCallback,unsigned short int* quantizedQueryAabbMin,unsigned short int* quantizedQueryAabbMax,int startNodeIndex,int endNodeIndex) const;
void walkStacklessTreeAgainstRay(btNodeOverlapCallback* nodeCallback, const btVector3& raySource, const btVector3& rayTarget, const btVector3& aabbMin, const btVector3& aabbMax, int startNodeIndex,int endNodeIndex) const;
///tree traversal designed for small-memory processors like PS3 SPU
void walkStacklessQuantizedTreeCacheFriendly(btNodeOverlapCallback* nodeCallback,unsigned short int* quantizedQueryAabbMin,unsigned short int* quantizedQueryAabbMax) const;
@ -307,30 +310,14 @@ protected:
void walkRecursiveQuantizedTreeAgainstQuantizedTree(const btQuantizedBvhNode* treeNodeA,const btQuantizedBvhNode* treeNodeB,btNodeOverlapCallback* nodeCallback) const;
#define USE_BANCHLESS 1
#ifdef USE_BANCHLESS
//This block replaces the block below and uses no branches, and replaces the 8 bit return with a 32 bit return for improved performance (~3x on XBox 360)
SIMD_FORCE_INLINE unsigned testQuantizedAabbAgainstQuantizedAabb(unsigned short int* aabbMin1,unsigned short int* aabbMax1,const unsigned short int* aabbMin2,const unsigned short int* aabbMax2) const
{
return static_cast<unsigned int>(btSelect((unsigned)((aabbMin1[0] <= aabbMax2[0]) & (aabbMax1[0] >= aabbMin2[0])
& (aabbMin1[2] <= aabbMax2[2]) & (aabbMax1[2] >= aabbMin2[2])
& (aabbMin1[1] <= aabbMax2[1]) & (aabbMax1[1] >= aabbMin2[1])),
1, 0));
}
#else
SIMD_FORCE_INLINE bool testQuantizedAabbAgainstQuantizedAabb(unsigned short int* aabbMin1,unsigned short int* aabbMax1,const unsigned short int* aabbMin2,const unsigned short int* aabbMax2) const
{
bool overlap = true;
overlap = (aabbMin1[0] > aabbMax2[0] || aabbMax1[0] < aabbMin2[0]) ? false : overlap;
overlap = (aabbMin1[2] > aabbMax2[2] || aabbMax1[2] < aabbMin2[2]) ? false : overlap;
overlap = (aabbMin1[1] > aabbMax2[1] || aabbMax1[1] < aabbMin2[1]) ? false : overlap;
return overlap;
}
#endif //USE_BANCHLESS
void updateSubtreeHeaders(int leftChildNodexIndex,int rightChildNodexIndex);
public:
BT_DECLARE_ALIGNED_ALLOCATOR();
btQuantizedBvh();
virtual ~btQuantizedBvh();
@ -363,7 +350,7 @@ public:
btVector3 v = (point - m_bvhAabbMin) * m_bvhQuantization;
///Make sure rounding is done in a way that unQuantize(quantizeWithClamp(...)) is conservative
///end-points always set the first bit, so that they are sorted properly (so that neighbouring AABBs overlap properly)
///todo: double-check this
///@todo: double-check this
if (isMax)
{
out[0] = (unsigned short) (((unsigned short)(v.getX()+btScalar(1.)) | 1));

@ -55,6 +55,7 @@ btSimpleBroadphase::btSimpleBroadphase(int maxProxies, btOverlappingPairCache* o
m_maxHandles = maxProxies;
m_numHandles = 0;
m_firstFreeHandle = 0;
m_LastHandleIndex = -1;
{
@ -88,7 +89,7 @@ btBroadphaseProxy* btSimpleBroadphase::createProxy( const btVector3& aabbMin,
btAssert(0);
return 0; //should never happen, but don't let the game crash ;-)
}
assert(aabbMin[0]<= aabbMax[0] && aabbMin[1]<= aabbMax[1] && aabbMin[2]<= aabbMax[2]);
btAssert(aabbMin[0]<= aabbMax[0] && aabbMin[1]<= aabbMax[1] && aabbMin[2]<= aabbMax[2]);
int newHandleIndex = allocHandle();
btSimpleBroadphaseProxy* proxy = new (&m_pHandles[newHandleIndex])btSimpleBroadphaseProxy(aabbMin,aabbMax,shapeType,userPtr,collisionFilterGroup,collisionFilterMask,multiSapProxy);
@ -137,14 +138,32 @@ void btSimpleBroadphase::destroyProxy(btBroadphaseProxy* proxyOrg,btDispatcher*
}
void btSimpleBroadphase::getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const
{
const btSimpleBroadphaseProxy* sbp = getSimpleProxyFromProxy(proxy);
aabbMin = sbp->m_aabbMin;
aabbMax = sbp->m_aabbMax;
}
void btSimpleBroadphase::setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* /*dispatcher*/)
{
btSimpleBroadphaseProxy* sbp = getSimpleProxyFromProxy(proxy);
sbp->m_min = aabbMin;
sbp->m_max = aabbMax;
sbp->m_aabbMin = aabbMin;
sbp->m_aabbMax = aabbMax;
}
void btSimpleBroadphase::rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin,const btVector3& aabbMax)
{
for (int i=0; i <= m_LastHandleIndex; i++)
{
btSimpleBroadphaseProxy* proxy = &m_pHandles[i];
if(!proxy->m_clientObject)
{
continue;
}
rayCallback.process(proxy);
}
}
@ -154,9 +173,9 @@ void btSimpleBroadphase::setAabb(btBroadphaseProxy* proxy,const btVector3& aabbM
bool btSimpleBroadphase::aabbOverlap(btSimpleBroadphaseProxy* proxy0,btSimpleBroadphaseProxy* proxy1)
{
return proxy0->m_min[0] <= proxy1->m_max[0] && proxy1->m_min[0] <= proxy0->m_max[0] &&
proxy0->m_min[1] <= proxy1->m_max[1] && proxy1->m_min[1] <= proxy0->m_max[1] &&
proxy0->m_min[2] <= proxy1->m_max[2] && proxy1->m_min[2] <= proxy0->m_max[2];
return proxy0->m_aabbMin[0] <= proxy1->m_aabbMax[0] && proxy1->m_aabbMin[0] <= proxy0->m_aabbMax[0] &&
proxy0->m_aabbMin[1] <= proxy1->m_aabbMax[1] && proxy1->m_aabbMin[1] <= proxy0->m_aabbMax[1] &&
proxy0->m_aabbMin[2] <= proxy1->m_aabbMax[2] && proxy1->m_aabbMin[2] <= proxy0->m_aabbMax[2];
}
@ -176,18 +195,25 @@ void btSimpleBroadphase::calculateOverlappingPairs(btDispatcher* dispatcher)
{
//first check for new overlapping pairs
int i,j;
if (m_numHandles >= 0)
{
for (i=0;i<m_numHandles;i++)
int new_largest_index = -1;
for (i=0; i <= m_LastHandleIndex; i++)
{
btSimpleBroadphaseProxy* proxy0 = &m_pHandles[i];
for (j=i+1;j<m_numHandles;j++)
if(!proxy0->m_clientObject)
{
continue;
}
new_largest_index = i;
for (j=i+1; j <= m_LastHandleIndex; j++)
{
btSimpleBroadphaseProxy* proxy1 = &m_pHandles[j];
btAssert(proxy0 != proxy1);
if(!proxy1->m_clientObject)
{
continue;
}
btSimpleBroadphaseProxy* p0 = getSimpleProxyFromProxy(proxy0);
btSimpleBroadphaseProxy* p1 = getSimpleProxyFromProxy(proxy1);
@ -211,6 +237,8 @@ void btSimpleBroadphase::calculateOverlappingPairs(btDispatcher* dispatcher)
}
}
m_LastHandleIndex = new_largest_index;
if (m_ownsPairCache && m_pairCache->hasDeferredRemoval())
{
@ -296,5 +324,7 @@ bool btSimpleBroadphase::testAabbOverlap(btBroadphaseProxy* proxy0,btBroadphaseP
return aabbOverlap(p0,p1);
}
void btSimpleBroadphase::resetPool(btDispatcher* dispatcher)
{
//not yet
}

@ -22,8 +22,6 @@ subject to the following restrictions:
struct btSimpleBroadphaseProxy : public btBroadphaseProxy
{
btVector3 m_min;
btVector3 m_max;
int m_nextFree;
// int m_handleId;
@ -31,9 +29,8 @@ struct btSimpleBroadphaseProxy : public btBroadphaseProxy
btSimpleBroadphaseProxy() {};
btSimpleBroadphaseProxy(const btPoint3& minpt,const btPoint3& maxpt,int shapeType,void* userPtr,short int collisionFilterGroup,short int collisionFilterMask,void* multiSapProxy)
:btBroadphaseProxy(userPtr,collisionFilterGroup,collisionFilterMask,multiSapProxy),
m_min(minpt),m_max(maxpt)
btSimpleBroadphaseProxy(const btVector3& minpt,const btVector3& maxpt,int shapeType,void* userPtr,short int collisionFilterGroup,short int collisionFilterMask,void* multiSapProxy)
:btBroadphaseProxy(minpt,maxpt,userPtr,collisionFilterGroup,collisionFilterMask,multiSapProxy)
{
(void)shapeType;
}
@ -56,6 +53,7 @@ protected:
int m_numHandles; // number of active handles
int m_maxHandles; // max number of handles
int m_LastHandleIndex;
btSimpleBroadphaseProxy* m_pHandles; // handles pool
@ -68,6 +66,10 @@ protected:
int freeHandle = m_firstFreeHandle;
m_firstFreeHandle = m_pHandles[freeHandle].GetNextFree();
m_numHandles++;
if(freeHandle > m_LastHandleIndex)
{
m_LastHandleIndex = freeHandle;
}
return freeHandle;
}
@ -75,10 +77,15 @@ protected:
{
int handle = int(proxy-m_pHandles);
btAssert(handle >= 0 && handle < m_maxHandles);
if(handle == m_LastHandleIndex)
{
m_LastHandleIndex--;
}
proxy->SetNextFree(m_firstFreeHandle);
m_firstFreeHandle = handle;
proxy->m_clientObject = 0;
m_numHandles--;
}
@ -95,6 +102,15 @@ protected:
return proxy0;
}
inline const btSimpleBroadphaseProxy* getSimpleProxyFromProxy(btBroadphaseProxy* proxy) const
{
const btSimpleBroadphaseProxy* proxy0 = static_cast<const btSimpleBroadphaseProxy*>(proxy);
return proxy0;
}
///reset broadphase internal structures, to ensure determinism/reproducability
virtual void resetPool(btDispatcher* dispatcher);
void validate();
@ -117,6 +133,9 @@ public:
virtual void destroyProxy(btBroadphaseProxy* proxy,btDispatcher* dispatcher);
virtual void setAabb(btBroadphaseProxy* proxy,const btVector3& aabbMin,const btVector3& aabbMax, btDispatcher* dispatcher);
virtual void getAabb(btBroadphaseProxy* proxy,btVector3& aabbMin, btVector3& aabbMax ) const;
virtual void rayTest(const btVector3& rayFrom,const btVector3& rayTo, btBroadphaseRayCallback& rayCallback, const btVector3& aabbMin=btVector3(0,0,0),const btVector3& aabbMax=btVector3(0,0,0));
btOverlappingPairCache* getOverlappingPairCache()
{

@ -1,153 +1,234 @@
INCLUDE_DIRECTORIES(
${BULLET_PHYSICS_SOURCE_DIR}/src }
INCLUDE_DIRECTORIES( ${BULLET_PHYSICS_SOURCE_DIR}/src } )
SET(BulletCollision_SRCS
BroadphaseCollision/btAxisSweep3.cpp
BroadphaseCollision/btBroadphaseProxy.cpp
BroadphaseCollision/btCollisionAlgorithm.cpp
BroadphaseCollision/btDispatcher.cpp
BroadphaseCollision/btDbvtBroadphase.cpp
BroadphaseCollision/btDbvt.cpp
BroadphaseCollision/btMultiSapBroadphase.cpp
BroadphaseCollision/btOverlappingPairCache.cpp
BroadphaseCollision/btQuantizedBvh.cpp
BroadphaseCollision/btSimpleBroadphase.cpp
CollisionDispatch/btActivatingCollisionAlgorithm.cpp
CollisionDispatch/btCollisionDispatcher.cpp
CollisionDispatch/btCollisionObject.cpp
CollisionDispatch/btCollisionWorld.cpp
CollisionDispatch/btCompoundCollisionAlgorithm.cpp
CollisionDispatch/btConvexConcaveCollisionAlgorithm.cpp
CollisionDispatch/btDefaultCollisionConfiguration.cpp
CollisionDispatch/btSphereSphereCollisionAlgorithm.cpp
CollisionDispatch/btBoxBoxCollisionAlgorithm.cpp
CollisionDispatch/btBoxBoxDetector.cpp
CollisionDispatch/btGhostObject.cpp
CollisionDispatch/btSphereBoxCollisionAlgorithm.cpp
CollisionDispatch/btConvexPlaneCollisionAlgorithm.cpp
CollisionDispatch/btSphereTriangleCollisionAlgorithm.cpp
CollisionDispatch/btConvexConvexAlgorithm.cpp
CollisionDispatch/btEmptyCollisionAlgorithm.cpp
CollisionDispatch/btManifoldResult.cpp
CollisionDispatch/btSimulationIslandManager.cpp
CollisionDispatch/btUnionFind.cpp
CollisionDispatch/SphereTriangleDetector.cpp
CollisionShapes/btBoxShape.cpp
CollisionShapes/btBvhTriangleMeshShape.cpp
CollisionShapes/btCapsuleShape.cpp
CollisionShapes/btCollisionShape.cpp
CollisionShapes/btCompoundShape.cpp
CollisionShapes/btConcaveShape.cpp
CollisionShapes/btConeShape.cpp
CollisionShapes/btConvexHullShape.cpp
CollisionShapes/btConvexPointCloudShape.cpp
CollisionShapes/btConvexShape.cpp
CollisionShapes/btConvexInternalShape.cpp
CollisionShapes/btConvexTriangleMeshShape.cpp
CollisionShapes/btCylinderShape.cpp
CollisionShapes/btEmptyShape.cpp
CollisionShapes/btHeightfieldTerrainShape.cpp
CollisionShapes/btMinkowskiSumShape.cpp
CollisionShapes/btMultimaterialTriangleMeshShape.cpp
CollisionShapes/btMultiSphereShape.cpp
CollisionShapes/btOptimizedBvh.cpp
CollisionShapes/btPolyhedralConvexShape.cpp
CollisionShapes/btScaledBvhTriangleMeshShape.cpp
CollisionShapes/btTetrahedronShape.cpp
CollisionShapes/btSphereShape.cpp
CollisionShapes/btShapeHull.cpp
CollisionShapes/btStaticPlaneShape.cpp
CollisionShapes/btStridingMeshInterface.cpp
CollisionShapes/btTriangleCallback.cpp
CollisionShapes/btTriangleBuffer.cpp
CollisionShapes/btTriangleIndexVertexArray.cpp
CollisionShapes/btTriangleIndexVertexMaterialArray.cpp
CollisionShapes/btTriangleMesh.cpp
CollisionShapes/btTriangleMeshShape.cpp
CollisionShapes/btUniformScalingShape.cpp
Gimpact/btContactProcessing.cpp
Gimpact/btGImpactShape.cpp
Gimpact/gim_contact.cpp
Gimpact/btGImpactBvh.cpp
Gimpact/btGenericPoolAllocator.cpp
Gimpact/gim_memory.cpp
Gimpact/btGImpactCollisionAlgorithm.cpp
Gimpact/btTriangleShapeEx.cpp
Gimpact/gim_tri_collision.cpp
Gimpact/btGImpactQuantizedBvh.cpp
Gimpact/gim_box_set.cpp
NarrowPhaseCollision/btContinuousConvexCollision.cpp
NarrowPhaseCollision/btGjkEpa2.cpp
NarrowPhaseCollision/btGjkEpaPenetrationDepthSolver.cpp
NarrowPhaseCollision/btConvexCast.cpp
NarrowPhaseCollision/btGjkConvexCast.cpp
NarrowPhaseCollision/btGjkPairDetector.cpp
NarrowPhaseCollision/btMinkowskiPenetrationDepthSolver.cpp
NarrowPhaseCollision/btPersistentManifold.cpp
NarrowPhaseCollision/btRaycastCallback.cpp
NarrowPhaseCollision/btSubSimplexConvexCast.cpp
NarrowPhaseCollision/btVoronoiSimplexSolver.cpp
)
ADD_LIBRARY(LibBulletCollision
BroadphaseCollision/btAxisSweep3.cpp
BroadphaseCollision/btAxisSweep3.h
BroadphaseCollision/btBroadphaseProxy.cpp
BroadphaseCollision/btBroadphaseProxy.h
BroadphaseCollision/btCollisionAlgorithm.cpp
BroadphaseCollision/btCollisionAlgorithm.h
BroadphaseCollision/btDispatcher.cpp
BroadphaseCollision/btDispatcher.h
BroadphaseCollision/btDbvtBroadphase.cpp
BroadphaseCollision/btDbvtBroadphase.h
BroadphaseCollision/btDbvt.cpp
BroadphaseCollision/btDbvt.h
BroadphaseCollision/btMultiSapBroadphase.cpp
BroadphaseCollision/btMultiSapBroadphase.h
BroadphaseCollision/btOverlappingPairCache.cpp
BroadphaseCollision/btOverlappingPairCache.h
BroadphaseCollision/btOverlappingPairCallback.h
BroadphaseCollision/btQuantizedBvh.cpp
BroadphaseCollision/btQuantizedBvh.h
BroadphaseCollision/btSimpleBroadphase.cpp
BroadphaseCollision/btSimpleBroadphase.h
CollisionDispatch/btCollisionDispatcher.cpp
CollisionDispatch/btCollisionDispatcher.h
CollisionDispatch/btCollisionObject.cpp
CollisionDispatch/btCollisionObject.h
CollisionDispatch/btCollisionWorld.cpp
CollisionDispatch/btCollisionWorld.h
CollisionDispatch/btCompoundCollisionAlgorithm.cpp
CollisionDispatch/btCompoundCollisionAlgorithm.h
CollisionDispatch/btConvexConcaveCollisionAlgorithm.cpp
CollisionDispatch/btConvexConcaveCollisionAlgorithm.h
CollisionDispatch/btDefaultCollisionConfiguration.cpp
CollisionDispatch/btDefaultCollisionConfiguration.h
CollisionDispatch/btSphereSphereCollisionAlgorithm.cpp
CollisionDispatch/btSphereSphereCollisionAlgorithm.h
CollisionDispatch/btBoxBoxCollisionAlgorithm.cpp
CollisionDispatch/btBoxBoxCollisionAlgorithm.h
CollisionDispatch/btBoxBoxDetector.cpp
CollisionDispatch/btBoxBoxDetector.h
CollisionDispatch/btSphereBoxCollisionAlgorithm.cpp
CollisionDispatch/btSphereBoxCollisionAlgorithm.h
CollisionDispatch/btConvexPlaneCollisionAlgorithm.cpp
CollisionDispatch/btConvexPlaneCollisionAlgorithm.h
CollisionDispatch/btSphereTriangleCollisionAlgorithm.cpp
CollisionDispatch/btSphereTriangleCollisionAlgorithm.h
CollisionDispatch/btConvexConvexAlgorithm.cpp
CollisionDispatch/btConvexConvexAlgorithm.h
CollisionDispatch/btEmptyCollisionAlgorithm.cpp
CollisionDispatch/btEmptyCollisionAlgorithm.h
CollisionDispatch/btManifoldResult.cpp
CollisionDispatch/btManifoldResult.h
CollisionDispatch/btSimulationIslandManager.cpp
CollisionDispatch/btSimulationIslandManager.h
CollisionDispatch/btUnionFind.cpp
CollisionDispatch/btUnionFind.h
CollisionDispatch/SphereTriangleDetector.cpp
CollisionDispatch/SphereTriangleDetector.h
CollisionShapes/btBoxShape.cpp
CollisionShapes/btBoxShape.h
CollisionShapes/btBvhTriangleMeshShape.cpp
CollisionShapes/btBvhTriangleMeshShape.h
CollisionShapes/btCapsuleShape.cpp
CollisionShapes/btCapsuleShape.h
CollisionShapes/btCollisionShape.cpp
CollisionShapes/btCollisionShape.h
CollisionShapes/btCompoundShape.cpp
CollisionShapes/btCompoundShape.h
CollisionShapes/btConcaveShape.cpp
CollisionShapes/btConcaveShape.h
CollisionShapes/btConeShape.cpp
CollisionShapes/btConeShape.h
CollisionShapes/btConvexHullShape.cpp
CollisionShapes/btConvexHullShape.h
CollisionShapes/btConvexShape.cpp
CollisionShapes/btConvexShape.h
CollisionShapes/btConvexInternalShape.cpp
CollisionShapes/btConvexInternalShape.h
CollisionShapes/btConvexTriangleMeshShape.cpp
CollisionShapes/btConvexTriangleMeshShape.h
CollisionShapes/btCylinderShape.cpp
CollisionShapes/btCylinderShape.h
CollisionShapes/btEmptyShape.cpp
CollisionShapes/btEmptyShape.h
CollisionShapes/btHeightfieldTerrainShape.cpp
CollisionShapes/btHeightfieldTerrainShape.h
CollisionShapes/btMinkowskiSumShape.cpp
CollisionShapes/btMinkowskiSumShape.h
CollisionShapes/btMaterial.h
CollisionShapes/btMultimaterialTriangleMeshShape.cpp
CollisionShapes/btMultimaterialTriangleMeshShape.h
CollisionShapes/btMultiSphereShape.cpp
CollisionShapes/btMultiSphereShape.h
CollisionShapes/btOptimizedBvh.cpp
CollisionShapes/btOptimizedBvh.h
CollisionShapes/btPolyhedralConvexShape.cpp
CollisionShapes/btPolyhedralConvexShape.h
CollisionShapes/btScaledBvhTriangleMeshShape.cpp
CollisionShapes/btScaledBvhTriangleMeshShape.h
CollisionShapes/btTetrahedronShape.cpp
CollisionShapes/btTetrahedronShape.h
CollisionShapes/btSphereShape.cpp
CollisionShapes/btSphereShape.h
CollisionShapes/btShapeHull.h
CollisionShapes/btShapeHull.cpp
CollisionShapes/btStaticPlaneShape.cpp
CollisionShapes/btStaticPlaneShape.h
CollisionShapes/btStridingMeshInterface.cpp
CollisionShapes/btStridingMeshInterface.h
CollisionShapes/btTriangleCallback.cpp
CollisionShapes/btTriangleCallback.h
CollisionShapes/btTriangleBuffer.cpp
CollisionShapes/btTriangleBuffer.h
CollisionShapes/btTriangleIndexVertexArray.cpp
CollisionShapes/btTriangleIndexVertexArray.h
CollisionShapes/btTriangleIndexVertexMaterialArray.h
CollisionShapes/btTriangleIndexVertexMaterialArray.cpp
CollisionShapes/btTriangleMesh.cpp
CollisionShapes/btTriangleMesh.h
CollisionShapes/btTriangleMeshShape.cpp
CollisionShapes/btTriangleMeshShape.h
CollisionShapes/btUniformScalingShape.cpp
CollisionShapes/btUniformScalingShape.h
NarrowPhaseCollision/btContinuousConvexCollision.cpp
NarrowPhaseCollision/btContinuousConvexCollision.h
NarrowPhaseCollision/btGjkEpa.cpp
NarrowPhaseCollision/btGjkEpa.h
NarrowPhaseCollision/btGjkEpa2.cpp
NarrowPhaseCollision/btGjkEpa2.h
NarrowPhaseCollision/btGjkEpaPenetrationDepthSolver.cpp
NarrowPhaseCollision/btGjkEpaPenetrationDepthSolver.h
NarrowPhaseCollision/btConvexCast.cpp
NarrowPhaseCollision/btConvexCast.h
NarrowPhaseCollision/btGjkConvexCast.cpp
NarrowPhaseCollision/btGjkConvexCast.h
NarrowPhaseCollision/btGjkPairDetector.cpp
NarrowPhaseCollision/btGjkPairDetector.h
NarrowPhaseCollision/btMinkowskiPenetrationDepthSolver.cpp
NarrowPhaseCollision/btMinkowskiPenetrationDepthSolver.h
NarrowPhaseCollision/btPersistentManifold.cpp
NarrowPhaseCollision/btPersistentManifold.h
NarrowPhaseCollision/btRaycastCallback.cpp
NarrowPhaseCollision/btRaycastCallback.h
NarrowPhaseCollision/btSubSimplexConvexCast.cpp
NarrowPhaseCollision/btSubSimplexConvexCast.h
NarrowPhaseCollision/btVoronoiSimplexSolver.cpp
NarrowPhaseCollision/btVoronoiSimplexSolver.h
SET(Root_HDRS
../btBulletCollisionCommon.h
)
SET(BroadphaseCollision_HDRS
BroadphaseCollision/btAxisSweep3.h
BroadphaseCollision/btBroadphaseInterface.h
BroadphaseCollision/btBroadphaseProxy.h
BroadphaseCollision/btCollisionAlgorithm.h
BroadphaseCollision/btDispatcher.h
BroadphaseCollision/btDbvtBroadphase.h
BroadphaseCollision/btDbvt.h
BroadphaseCollision/btMultiSapBroadphase.h
BroadphaseCollision/btOverlappingPairCache.h
BroadphaseCollision/btOverlappingPairCallback.h
BroadphaseCollision/btQuantizedBvh.h
BroadphaseCollision/btSimpleBroadphase.h
)
SET(CollisionDispatch_HDRS
CollisionDispatch/btActivatingCollisionAlgorithm.h
CollisionDispatch/btCollisionConfiguration.h
CollisionDispatch/btCollisionCreateFunc.h
CollisionDispatch/btCollisionDispatcher.h
CollisionDispatch/btCollisionObject.h
CollisionDispatch/btCollisionWorld.h
CollisionDispatch/btCompoundCollisionAlgorithm.h
CollisionDispatch/btConvexConcaveCollisionAlgorithm.h
CollisionDispatch/btDefaultCollisionConfiguration.h
CollisionDispatch/btSphereSphereCollisionAlgorithm.h
CollisionDispatch/btBoxBoxCollisionAlgorithm.h
CollisionDispatch/btBoxBoxDetector.h
CollisionDispatch/btGhostObject.h
CollisionDispatch/btSphereBoxCollisionAlgorithm.h
CollisionDispatch/btConvexPlaneCollisionAlgorithm.h
CollisionDispatch/btSphereTriangleCollisionAlgorithm.h
CollisionDispatch/btConvexConvexAlgorithm.h
CollisionDispatch/btEmptyCollisionAlgorithm.h
CollisionDispatch/btManifoldResult.h
CollisionDispatch/btSimulationIslandManager.h
CollisionDispatch/btUnionFind.h
CollisionDispatch/SphereTriangleDetector.h
)
SET(CollisionShapes_HDRS
CollisionShapes/btBoxShape.h
CollisionShapes/btBvhTriangleMeshShape.h
CollisionShapes/btCapsuleShape.h
CollisionShapes/btCollisionMargin
CollisionShapes/btCollisionShape.h
CollisionShapes/btCompoundShape.h
CollisionShapes/btConcaveShape.h
CollisionShapes/btConeShape.h
CollisionShapes/btConvexHullShape.h
CollisionShapes/btConvexPointCloudShape.h
CollisionShapes/btConvexShape.h
CollisionShapes/btConvexInternalShape.h
CollisionShapes/btConvexTriangleMeshShape.h
CollisionShapes/btCylinderShape.h
CollisionShapes/btEmptyShape.h
CollisionShapes/btHeightfieldTerrainShape.h
CollisionShapes/btMinkowskiSumShape.h
CollisionShapes/btMaterial.h
CollisionShapes/btMultimaterialTriangleMeshShape.h
CollisionShapes/btMultiSphereShape.h
CollisionShapes/btOptimizedBvh.h
CollisionShapes/btPolyhedralConvexShape.h
CollisionShapes/btScaledBvhTriangleMeshShape.h
CollisionShapes/btTetrahedronShape.h
CollisionShapes/btSphereShape.h
CollisionShapes/btShapeHull.h
CollisionShapes/btStaticPlaneShape.h
CollisionShapes/btStridingMeshInterface.h
CollisionShapes/btTriangleCallback.h
CollisionShapes/btTriangleBuffer.h
CollisionShapes/btTriangleIndexVertexArray.h
CollisionShapes/btTriangleIndexVertexMaterialArray.h
CollisionShapes/btTriangleMesh.h
CollisionShapes/btTriangleMeshShape.h
CollisionShapes/btUniformScalingShape.h
)
SET(Gimpact_HDRS
Gimpact/btGImpactShape.h
Gimpact/gim_contact.h
Gimpact/btGImpactBvh.h
Gimpact/btGenericPoolAllocator.h
Gimpact/gim_memory.h
Gimpact/btGImpactCollisionAlgorithm.h
Gimpact/btTriangleShapeEx.h
Gimpact/gim_tri_collision.h
Gimpact/btGImpactQuantizedBvh.h
Gimpact/gim_box_set.h
)
SET(NarrowPhaseCollision_HDRS
NarrowPhaseCollision/btContinuousConvexCollision.h
NarrowPhaseCollision/btConvexCast.h
NarrowPhaseCollision/btConvexPenetrationDepthSolver.h
NarrowPhaseCollision/btDiscreteCollisionDetectorInterface.h
NarrowPhaseCollision/btGjkConvexCast.h
NarrowPhaseCollision/btGjkEpa2.h
NarrowPhaseCollision/btGjkEpaPenetrationDepthSolver.h
NarrowPhaseCollision/btGjkPairDetector.h
NarrowPhaseCollision/btManifoldPoint.h
NarrowPhaseCollision/btMinkowskiPenetrationDepthSolver.h
NarrowPhaseCollision/btPersistentManifold.h
NarrowPhaseCollision/btPointCollector.h
NarrowPhaseCollision/btRaycastCallback.h
NarrowPhaseCollision/btSimplexSolverInterface.h
NarrowPhaseCollision/btSubSimplexConvexCast.h
NarrowPhaseCollision/btVoronoiSimplexSolver.h
)
SET(BulletCollision_HDRS
${Root_HDRS}
${BroadphaseCollision_HDRS}
${CollisionDispatch_HDRS}
${CollisionShapes_HDRS}
${Gimpact_HDRS}
${NarrowPhaseCollision_HDRS}
)
ADD_LIBRARY(BulletCollision ${BulletCollision_SRCS} ${BulletCollision_HDRS})
SET_TARGET_PROPERTIES(BulletCollision PROPERTIES VERSION ${BULLET_VERSION})
SET_TARGET_PROPERTIES(BulletCollision PROPERTIES SOVERSION ${BULLET_VERSION})
IF (BUILD_SHARED_LIBS)
TARGET_LINK_LIBRARIES(BulletCollision LinearMath)
ENDIF (BUILD_SHARED_LIBS)
#INSTALL of other files requires CMake 2.6
IF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.5)
INSTALL(TARGETS BulletCollision DESTINATION lib)
INSTALL(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} DESTINATION include FILES_MATCHING PATTERN "*.h")
ENDIF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.5)
IF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK)
SET_TARGET_PROPERTIES(BulletCollision PROPERTIES FRAMEWORK true)
SET_TARGET_PROPERTIES(BulletCollision PROPERTIES PUBLIC_HEADER "${Root_HDRS}")
# Have to list out sub-directories manually:
SET_PROPERTY(SOURCE ${BroadphaseCollision_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/BroadphaseCollision)
SET_PROPERTY(SOURCE ${CollisionDispatch_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/CollisionDispatch)
SET_PROPERTY(SOURCE ${CollisionShapes_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/CollisionShapes)
SET_PROPERTY(SOURCE ${Gimpact_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/Gimpact)
SET_PROPERTY(SOURCE ${NarrowPhaseCollision_HDRS} PROPERTY MACOSX_PACKAGE_LOCATION Headers/NarrowPhaseCollision)
ENDIF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK)

@ -19,9 +19,10 @@ subject to the following restrictions:
#include "BulletCollision/CollisionShapes/btSphereShape.h"
SphereTriangleDetector::SphereTriangleDetector(btSphereShape* sphere,btTriangleShape* triangle)
SphereTriangleDetector::SphereTriangleDetector(btSphereShape* sphere,btTriangleShape* triangle,btScalar contactBreakingThreshold)
:m_sphere(sphere),
m_triangle(triangle)
m_triangle(triangle),
m_contactBreakingThreshold(contactBreakingThreshold)
{
}
@ -40,7 +41,7 @@ void SphereTriangleDetector::getClosestPoints(const ClosestPointInput& input,Res
//move sphere into triangle space
btTransform sphereInTr = transformB.inverseTimes(transformA);
if (collide(sphereInTr.getOrigin(),point,normal,depth,timeOfImpact))
if (collide(sphereInTr.getOrigin(),point,normal,depth,timeOfImpact,m_contactBreakingThreshold))
{
if (swapResults)
{
@ -93,7 +94,7 @@ bool SphereTriangleDetector::facecontains(const btVector3 &p,const btVector3* ve
}
///combined discrete/continuous sphere-triangle
bool SphereTriangleDetector::collide(const btVector3& sphereCenter,btVector3 &point, btVector3& resultNormal, btScalar& depth, btScalar &timeOfImpact)
bool SphereTriangleDetector::collide(const btVector3& sphereCenter,btVector3 &point, btVector3& resultNormal, btScalar& depth, btScalar &timeOfImpact, btScalar contactBreakingThreshold)
{
const btVector3* vertices = &m_triangle->getVertexPtr(0);
@ -115,10 +116,7 @@ bool SphereTriangleDetector::collide(const btVector3& sphereCenter,btVector3 &po
normal *= btScalar(-1.);
}
///todo: move this gContactBreakingThreshold into a proper structure
extern btScalar gContactBreakingThreshold;
btScalar contactMargin = gContactBreakingThreshold;
btScalar contactMargin = contactBreakingThreshold;
bool isInsideContactPlane = distanceFromPlane < r + contactMargin;
bool isInsideShellPlane = distanceFromPlane < r;
@ -140,8 +138,8 @@ bool SphereTriangleDetector::collide(const btVector3& sphereCenter,btVector3 &po
btVector3 nearestOnEdge;
for (int i = 0; i < m_triangle->getNumEdges(); i++) {
btPoint3 pa;
btPoint3 pb;
btVector3 pa;
btVector3 pb;
m_triangle->getEdge(i,pa,pb);

@ -17,7 +17,7 @@ subject to the following restrictions:
#define SPHERE_TRIANGLE_DETECTOR_H
#include "BulletCollision/NarrowPhaseCollision/btDiscreteCollisionDetectorInterface.h"
#include "LinearMath/btPoint3.h"
class btSphereShape;
@ -30,19 +30,19 @@ struct SphereTriangleDetector : public btDiscreteCollisionDetectorInterface
{
virtual void getClosestPoints(const ClosestPointInput& input,Result& output,class btIDebugDraw* debugDraw,bool swapResults=false);
SphereTriangleDetector(btSphereShape* sphere,btTriangleShape* triangle);
SphereTriangleDetector(btSphereShape* sphere,btTriangleShape* triangle, btScalar contactBreakingThreshold);
virtual ~SphereTriangleDetector() {};
private:
bool collide(const btVector3& sphereCenter,btVector3 &point, btVector3& resultNormal, btScalar& depth, btScalar &timeOfImpact);
bool collide(const btVector3& sphereCenter,btVector3 &point, btVector3& resultNormal, btScalar& depth, btScalar &timeOfImpact, btScalar contactBreakingThreshold);
bool pointInTriangle(const btVector3 vertices[], const btVector3 &normal, btVector3 *p );
bool facecontains(const btVector3 &p,const btVector3* vertices,btVector3& normal);
btSphereShape* m_sphere;
btTriangleShape* m_triangle;
btScalar m_contactBreakingThreshold;
};
#endif //SPHERE_TRIANGLE_DETECTOR_H

@ -0,0 +1,47 @@
/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2008 Erwin Coumans http://bulletphysics.com
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "btActivatingCollisionAlgorithm.h"
#include "btCollisionDispatcher.h"
#include "btCollisionObject.h"
btActivatingCollisionAlgorithm::btActivatingCollisionAlgorithm (const btCollisionAlgorithmConstructionInfo& ci)
:btCollisionAlgorithm(ci)
//,
//m_colObj0(0),
//m_colObj1(0)
{
}
btActivatingCollisionAlgorithm::btActivatingCollisionAlgorithm (const btCollisionAlgorithmConstructionInfo& ci, btCollisionObject* colObj0,btCollisionObject* colObj1)
:btCollisionAlgorithm(ci)
//,
//m_colObj0(0),
//m_colObj1(0)
{
// if (ci.m_dispatcher1->needsCollision(colObj0,colObj1))
// {
// m_colObj0 = colObj0;
// m_colObj1 = colObj1;
//
// m_colObj0->activate();
// m_colObj1->activate();
// }
}
btActivatingCollisionAlgorithm::~btActivatingCollisionAlgorithm()
{
// m_colObj0->activate();
// m_colObj1->activate();
}

@ -0,0 +1,36 @@
/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2008 Erwin Coumans http://bulletphysics.com
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef __BT_ACTIVATING_COLLISION_ALGORITHM_H
#define __BT_ACTIVATING_COLLISION_ALGORITHM_H
#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h"
///This class is not enabled yet (work-in-progress) to more aggressively activate objects.
class btActivatingCollisionAlgorithm : public btCollisionAlgorithm
{
// btCollisionObject* m_colObj0;
// btCollisionObject* m_colObj1;
public:
btActivatingCollisionAlgorithm (const btCollisionAlgorithmConstructionInfo& ci);
btActivatingCollisionAlgorithm (const btCollisionAlgorithmConstructionInfo& ci, btCollisionObject* colObj0,btCollisionObject* colObj1);
virtual ~btActivatingCollisionAlgorithm();
};
#endif //__BT_ACTIVATING_COLLISION_ALGORITHM_H

@ -22,7 +22,7 @@ subject to the following restrictions:
#define USE_PERSISTENT_CONTACTS 1
btBoxBoxCollisionAlgorithm::btBoxBoxCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* obj0,btCollisionObject* obj1)
: btCollisionAlgorithm(ci),
: btActivatingCollisionAlgorithm(ci,obj0,obj1),
m_ownManifold(false),
m_manifoldPtr(mf)
{

@ -16,7 +16,7 @@ subject to the following restrictions:
#ifndef BOX_BOX__COLLISION_ALGORITHM_H
#define BOX_BOX__COLLISION_ALGORITHM_H
#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h"
#include "btActivatingCollisionAlgorithm.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h"
#include "BulletCollision/BroadphaseCollision/btDispatcher.h"
#include "BulletCollision/CollisionDispatch/btCollisionCreateFunc.h"
@ -24,14 +24,14 @@ subject to the following restrictions:
class btPersistentManifold;
///box-box collision detection
class btBoxBoxCollisionAlgorithm : public btCollisionAlgorithm
class btBoxBoxCollisionAlgorithm : public btActivatingCollisionAlgorithm
{
bool m_ownManifold;
btPersistentManifold* m_manifoldPtr;
public:
btBoxBoxCollisionAlgorithm(const btCollisionAlgorithmConstructionInfo& ci)
: btCollisionAlgorithm(ci) {}
: btActivatingCollisionAlgorithm(ci) {}
virtual void processCollision (btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut);

@ -207,7 +207,13 @@ void cullPoints2 (int n, btScalar p[], int m, int i0, int iret[])
cy += q*(p[i*2+1]+p[i*2+3]);
}
q = p[n*2-2]*p[1] - p[0]*p[n*2-1];
a = 1.f/(btScalar(3.0)*(a+q));
if (btFabs(a+q) > SIMD_EPSILON)
{
a = 1.f/(btScalar(3.0)*(a+q));
} else
{
a=1e30f;
}
cx = a*(cx + q*(p[n*2-2]+p[0]));
cy = a*(cy + q*(p[n*2-1]+p[1]));
}
@ -226,9 +232,9 @@ void cullPoints2 (int n, btScalar p[], int m, int i0, int iret[])
a = btScalar(j)*(2*M__PI/m) + A[i0];
if (a > M__PI) a -= 2*M__PI;
btScalar maxdiff=1e9,diff;
#if defined(DEBUG) || defined (_DEBUG)
*iret = i0; // iret is not allowed to keep this value
#endif
*iret = i0; // iret is not allowed to keep this value, but it sometimes does, when diff=#QNAN0
for (i=0; i<n; i++) {
if (avail[i]) {
diff = btFabs (A[i]-a);

@ -22,7 +22,7 @@ class btPoolAllocator;
///btCollisionConfiguration allows to configure Bullet collision detection
///stack allocator size, default collision algorithms and persistent manifold pool size
///todo: describe the meaning
///@todo: describe the meaning
class btCollisionConfiguration
{

@ -17,7 +17,6 @@ subject to the following restrictions:
#define COLLISION_CREATE_FUNC
#include "LinearMath/btAlignedObjectArray.h"
typedef btAlignedObjectArray<class btCollisionObject*> btCollisionObjectArray;
class btCollisionAlgorithm;
class btCollisionObject;

@ -52,12 +52,12 @@ btCollisionDispatcher::btCollisionDispatcher (btCollisionConfiguration* collisio
for (int j=0;j<MAX_BROADPHASE_COLLISION_TYPES;j++)
{
m_doubleDispatch[i][j] = m_collisionConfiguration->getCollisionAlgorithmCreateFunc(i,j);
assert(m_doubleDispatch[i][j]);
btAssert(m_doubleDispatch[i][j]);
}
}
};
}
void btCollisionDispatcher::registerCollisionCreateFunc(int proxyType0, int proxyType1, btCollisionAlgorithmCreateFunc *createFunc)
@ -78,7 +78,13 @@ btPersistentManifold* btCollisionDispatcher::getNewManifold(void* b0,void* b1)
btCollisionObject* body0 = (btCollisionObject*)b0;
btCollisionObject* body1 = (btCollisionObject*)b1;
//test for Bullet 2.74: use a relative contact breaking threshold without clamping against 'gContactBreakingThreshold'
//btScalar contactBreakingThreshold = btMin(gContactBreakingThreshold,btMin(body0->getCollisionShape()->getContactBreakingThreshold(),body1->getCollisionShape()->getContactBreakingThreshold()));
btScalar contactBreakingThreshold = btMin(body0->getCollisionShape()->getContactBreakingThreshold(),body1->getCollisionShape()->getContactBreakingThreshold());
btScalar contactProcessingThreshold = btMin(body0->getContactProcessingThreshold(),body1->getContactProcessingThreshold());
void* mem = 0;
if (m_persistentManifoldPoolAllocator->getFreeCount())
@ -89,7 +95,7 @@ btPersistentManifold* btCollisionDispatcher::getNewManifold(void* b0,void* b1)
mem = btAlignedAlloc(sizeof(btPersistentManifold),16);
}
btPersistentManifold* manifold = new(mem) btPersistentManifold (body0,body1,0);
btPersistentManifold* manifold = new(mem) btPersistentManifold (body0,body1,0,contactBreakingThreshold,contactProcessingThreshold);
manifold->m_index1a = m_manifoldsPtr.size();
m_manifoldsPtr.push_back(manifold);
@ -144,7 +150,6 @@ btCollisionAlgorithm* btCollisionDispatcher::findAlgorithm(btCollisionObject* bo
bool btCollisionDispatcher::needsResponse(btCollisionObject* body0,btCollisionObject* body1)
{
//here you can do filtering
@ -158,8 +163,8 @@ bool btCollisionDispatcher::needsResponse(btCollisionObject* body0,btCollisionOb
bool btCollisionDispatcher::needsCollision(btCollisionObject* body0,btCollisionObject* body1)
{
assert(body0);
assert(body1);
btAssert(body0);
btAssert(body1);
bool needsCollision = true;

@ -19,6 +19,7 @@ subject to the following restrictions:
btCollisionObject::btCollisionObject()
: m_anisotropicFriction(1.f,1.f,1.f),
m_hasAnisotropicFriction(false),
m_contactProcessingThreshold(0.f),
m_broadphaseHandle(0),
m_collisionShape(0),
m_rootCollisionShape(0),

@ -29,8 +29,11 @@ struct btBroadphaseProxy;
class btCollisionShape;
#include "LinearMath/btMotionState.h"
#include "LinearMath/btAlignedAllocator.h"
#include "LinearMath/btAlignedObjectArray.h"
typedef btAlignedObjectArray<class btCollisionObject*> btCollisionObjectArray;
/// btCollisionObject can be used to manage collision detection objects.
/// btCollisionObject maintains all information that is needed for a collision detection: Shape, Transform and AABB proxy.
@ -49,8 +52,10 @@ protected:
//without destroying the continuous interpolated motion (which uses this interpolation velocities)
btVector3 m_interpolationLinearVelocity;
btVector3 m_interpolationAngularVelocity;
btVector3 m_anisotropicFriction;
bool m_hasAnisotropicFriction;
bool m_hasAnisotropicFriction;
btScalar m_contactProcessingThreshold;
btBroadphaseProxy* m_broadphaseHandle;
btCollisionShape* m_collisionShape;
@ -74,7 +79,7 @@ protected:
///users can point to their objects, m_userPointer is not used by Bullet, see setUserPointer/getUserPointer
void* m_userObjectPointer;
///m_internalType is reserved to distinguish Bullet's btCollisionObject, btRigidBody, btSoftBody etc.
///m_internalType is reserved to distinguish Bullet's btCollisionObject, btRigidBody, btSoftBody, btGhostObject etc.
///do not assign your own m_internalType unless you write a new dynamics object class.
int m_internalType;
@ -106,14 +111,19 @@ public:
CF_STATIC_OBJECT= 1,
CF_KINEMATIC_OBJECT= 2,
CF_NO_CONTACT_RESPONSE = 4,
CF_CUSTOM_MATERIAL_CALLBACK = 8//this allows per-triangle material (friction/restitution)
CF_CUSTOM_MATERIAL_CALLBACK = 8,//this allows per-triangle material (friction/restitution)
CF_CHARACTER_OBJECT = 16
};
enum CollisionObjectTypes
{
CO_COLLISION_OBJECT =1,
CO_RIGID_BODY,
CO_SOFT_BODY
///CO_GHOST_OBJECT keeps track of all objects overlapping its AABB and that pass its collision filter
///It is useful for collision sensors, explosion objects, character controller etc.
CO_GHOST_OBJECT,
CO_SOFT_BODY,
CO_HF_FLUID
};
SIMD_FORCE_INLINE bool mergesSimulationIslands() const
@ -136,6 +146,16 @@ public:
return m_hasAnisotropicFriction;
}
///the constraint solver can discard solving contacts, if the distance is above this threshold. 0 by default.
///Note that using contacts with positive distance can improve stability. It increases, however, the chance of colliding with degerate contacts, such as 'interior' triangle edges
void setContactProcessingThreshold( btScalar contactProcessingThreshold)
{
m_contactProcessingThreshold = contactProcessingThreshold;
}
btScalar getContactProcessingThreshold() const
{
return m_contactProcessingThreshold;
}
SIMD_FORCE_INLINE bool isStaticObject() const {
return (m_collisionFlags & CF_STATIC_OBJECT) != 0;
@ -193,7 +213,7 @@ public:
m_collisionShape = collisionShape;
}
int getActivationState() const { return m_activationState1;}
SIMD_FORCE_INLINE int getActivationState() const { return m_activationState1;}
void setActivationState(int newState);
@ -210,7 +230,7 @@ public:
void activate(bool forceActivation = false);
inline bool isActive() const
SIMD_FORCE_INLINE bool isActive() const
{
return ((getActivationState() != ISLAND_SLEEPING) && (getActivationState() != DISABLE_SIMULATION));
}
@ -254,12 +274,12 @@ public:
}
btBroadphaseProxy* getBroadphaseHandle()
SIMD_FORCE_INLINE btBroadphaseProxy* getBroadphaseHandle()
{
return m_broadphaseHandle;
}
const btBroadphaseProxy* getBroadphaseHandle() const
SIMD_FORCE_INLINE const btBroadphaseProxy* getBroadphaseHandle() const
{
return m_broadphaseHandle;
}
@ -305,7 +325,7 @@ public:
return m_interpolationAngularVelocity;
}
const int getIslandTag() const
SIMD_FORCE_INLINE int getIslandTag() const
{
return m_islandTag1;
}
@ -315,7 +335,7 @@ public:
m_islandTag1 = tag;
}
const int getCompanionId() const
SIMD_FORCE_INLINE int getCompanionId() const
{
return m_companionId;
}
@ -325,7 +345,7 @@ public:
m_companionId = id;
}
const btScalar getHitFraction() const
SIMD_FORCE_INLINE btScalar getHitFraction() const
{
return m_hitFraction;
}
@ -336,7 +356,7 @@ public:
}
const int getCollisionFlags() const
SIMD_FORCE_INLINE int getCollisionFlags() const
{
return m_collisionFlags;
}

@ -32,6 +32,9 @@ subject to the following restrictions:
#include "LinearMath/btQuickprof.h"
#include "LinearMath/btStackAlloc.h"
//#define USE_BRUTEFORCE_RAYBROADPHASE 1
//RECALCULATE_AABB is slower, but benefit is that you don't need to call 'stepSimulation' or 'updateAabbs' before using a rayTest
//#define RECALCULATE_AABB_RAYCAST 1
//When the user doesn't provide dispatcher or broadphase, create basic versions (and delete them in destructor)
#include "BulletCollision/CollisionDispatch/btCollisionDispatcher.h"
@ -66,6 +69,7 @@ btCollisionWorld::~btCollisionWorld()
//
getBroadphase()->getOverlappingPairCache()->cleanProxyFromPairs(bp,m_dispatcher1);
getBroadphase()->destroyProxy(bp,m_dispatcher1);
collisionObject->setBroadphaseHandle(0);
}
}
@ -111,6 +115,41 @@ void btCollisionWorld::addCollisionObject(btCollisionObject* collisionObject,sho
}
void btCollisionWorld::updateSingleAabb(btCollisionObject* colObj)
{
btVector3 minAabb,maxAabb;
colObj->getCollisionShape()->getAabb(colObj->getWorldTransform(), minAabb,maxAabb);
//need to increase the aabb for contact thresholds
btVector3 contactThreshold(gContactBreakingThreshold,gContactBreakingThreshold,gContactBreakingThreshold);
minAabb -= contactThreshold;
maxAabb += contactThreshold;
btBroadphaseInterface* bp = (btBroadphaseInterface*)m_broadphasePairCache;
//moving objects should be moderately sized, probably something wrong if not
if ( colObj->isStaticObject() || ((maxAabb-minAabb).length2() < btScalar(1e12)))
{
bp->setAabb(colObj->getBroadphaseHandle(),minAabb,maxAabb, m_dispatcher1);
} else
{
//something went wrong, investigate
//this assert is unwanted in 3D modelers (danger of loosing work)
colObj->setActivationState(DISABLE_SIMULATION);
static bool reportMe = true;
if (reportMe && m_debugDrawer)
{
reportMe = false;
m_debugDrawer->reportErrorWarning("Overflow in AABB, object removed from simulation");
m_debugDrawer->reportErrorWarning("If you can reproduce this, please email bugs@continuousphysics.com\n");
m_debugDrawer->reportErrorWarning("Please include above information, your Platform, version of OS.\n");
m_debugDrawer->reportErrorWarning("Thanks.\n");
}
}
}
void btCollisionWorld::updateAabbs()
@ -125,38 +164,9 @@ void btCollisionWorld::updateAabbs()
//only update aabb of active objects
if (colObj->isActive())
{
btPoint3 minAabb,maxAabb;
colObj->getCollisionShape()->getAabb(colObj->getWorldTransform(), minAabb,maxAabb);
//need to increase the aabb for contact thresholds
btVector3 contactThreshold(gContactBreakingThreshold,gContactBreakingThreshold,gContactBreakingThreshold);
minAabb -= contactThreshold;
maxAabb += contactThreshold;
btBroadphaseInterface* bp = (btBroadphaseInterface*)m_broadphasePairCache;
//moving objects should be moderately sized, probably something wrong if not
if ( colObj->isStaticObject() || ((maxAabb-minAabb).length2() < btScalar(1e12)))
{
bp->setAabb(colObj->getBroadphaseHandle(),minAabb,maxAabb, m_dispatcher1);
} else
{
//something went wrong, investigate
//this assert is unwanted in 3D modelers (danger of loosing work)
colObj->setActivationState(DISABLE_SIMULATION);
static bool reportMe = true;
if (reportMe && m_debugDrawer)
{
reportMe = false;
m_debugDrawer->reportErrorWarning("Overflow in AABB, object removed from simulation");
m_debugDrawer->reportErrorWarning("If you can reproduce this, please email bugs@continuousphysics.com\n");
m_debugDrawer->reportErrorWarning("Please include above information, your Platform, version of OS.\n");
m_debugDrawer->reportErrorWarning("Thanks.\n");
}
}
updateSingleAabb(colObj);
}
}
}
@ -226,6 +236,7 @@ void btCollisionWorld::rayTestSingle(const btTransform& rayFromTrans,const btTra
if (collisionShape->isConvex())
{
// BT_PROFILE("rayTestConvex");
btConvexCast::CastResult castResult;
castResult.m_fraction = resultCallback.m_closestHitFraction;
@ -269,6 +280,7 @@ void btCollisionWorld::rayTestSingle(const btTransform& rayFromTrans,const btTra
} else {
if (collisionShape->isConcave())
{
// BT_PROFILE("rayTestConcave");
if (collisionShape->getShapeType()==TRIANGLE_MESH_SHAPE_PROXYTYPE)
{
///optimized version for btBvhTriangleMeshShape
@ -286,7 +298,8 @@ void btCollisionWorld::rayTestSingle(const btTransform& rayFromTrans,const btTra
BridgeTriangleRaycastCallback( const btVector3& from,const btVector3& to,
btCollisionWorld::RayResultCallback* resultCallback, btCollisionObject* collisionObject,btTriangleMeshShape* triangleMesh):
btTriangleRaycastCallback(from,to),
//@BP Mod
btTriangleRaycastCallback(from,to, resultCallback->m_flags),
m_resultCallback(resultCallback),
m_collisionObject(collisionObject),
m_triangleMesh(triangleMesh)
@ -317,7 +330,8 @@ void btCollisionWorld::rayTestSingle(const btTransform& rayFromTrans,const btTra
triangleMesh->performRaycast(&rcb,rayFromLocal,rayToLocal);
} else
{
btTriangleMeshShape* triangleMesh = (btTriangleMeshShape*)collisionShape;
//generic (slower) case
btConcaveShape* concaveShape = (btConcaveShape*)collisionShape;
btTransform worldTocollisionObject = colObjWorldTransform.inverse();
@ -330,11 +344,12 @@ void btCollisionWorld::rayTestSingle(const btTransform& rayFromTrans,const btTra
{
btCollisionWorld::RayResultCallback* m_resultCallback;
btCollisionObject* m_collisionObject;
btTriangleMeshShape* m_triangleMesh;
btConcaveShape* m_triangleMesh;
BridgeTriangleRaycastCallback( const btVector3& from,const btVector3& to,
btCollisionWorld::RayResultCallback* resultCallback, btCollisionObject* collisionObject,btTriangleMeshShape* triangleMesh):
btTriangleRaycastCallback(from,to),
btCollisionWorld::RayResultCallback* resultCallback, btCollisionObject* collisionObject,btConcaveShape* triangleMesh):
//@BP Mod
btTriangleRaycastCallback(from,to, resultCallback->m_flags),
m_resultCallback(resultCallback),
m_collisionObject(collisionObject),
m_triangleMesh(triangleMesh)
@ -363,7 +378,7 @@ void btCollisionWorld::rayTestSingle(const btTransform& rayFromTrans,const btTra
};
BridgeTriangleRaycastCallback rcb(rayFromLocal,rayToLocal,&resultCallback,collisionObject,triangleMesh);
BridgeTriangleRaycastCallback rcb(rayFromLocal,rayToLocal,&resultCallback,collisionObject,concaveShape);
rcb.m_hitFraction = resultCallback.m_closestHitFraction;
btVector3 rayAabbMinLocal = rayFromLocal;
@ -371,10 +386,11 @@ void btCollisionWorld::rayTestSingle(const btTransform& rayFromTrans,const btTra
btVector3 rayAabbMaxLocal = rayFromLocal;
rayAabbMaxLocal.setMax(rayToLocal);
triangleMesh->processAllTriangles(&rcb,rayAabbMinLocal,rayAabbMaxLocal);
concaveShape->processAllTriangles(&rcb,rayAabbMinLocal,rayAabbMaxLocal);
}
} else {
//todo: use AABB tree or other BVH acceleration structure!
// BT_PROFILE("rayTestCompound");
///@todo: use AABB tree or other BVH acceleration structure, see btDbvt
if (collisionShape->isCompound())
{
const btCompoundShape* compoundShape = static_cast<const btCompoundShape*>(collisionShape);
@ -408,9 +424,10 @@ void btCollisionWorld::objectQuerySingle(const btConvexShape* castShape,const bt
{
if (collisionShape->isConvex())
{
//BT_PROFILE("convexSweepConvex");
btConvexCast::CastResult castResult;
castResult.m_allowedPenetration = allowedPenetration;
castResult.m_fraction = btScalar(1.);//??
castResult.m_fraction = resultCallback.m_closestHitFraction;//btScalar(1.);//??
btConvexShape* convexShape = (btConvexShape*) collisionShape;
btVoronoiSimplexSolver simplexSolver;
@ -452,6 +469,7 @@ void btCollisionWorld::objectQuerySingle(const btConvexShape* castShape,const bt
{
if (collisionShape->getShapeType()==TRIANGLE_MESH_SHAPE_PROXYTYPE)
{
//BT_PROFILE("convexSweepbtBvhTriangleMesh");
btBvhTriangleMeshShape* triangleMesh = (btBvhTriangleMeshShape*)collisionShape;
btTransform worldTocollisionObject = colObjWorldTransform.inverse();
btVector3 convexFromLocal = worldTocollisionObject * convexFromTrans.getOrigin();
@ -508,7 +526,8 @@ void btCollisionWorld::objectQuerySingle(const btConvexShape* castShape,const bt
triangleMesh->performConvexcast(&tccb,convexFromLocal,convexToLocal,boxMinLocal, boxMaxLocal);
} else
{
btBvhTriangleMeshShape* triangleMesh = (btBvhTriangleMeshShape*)collisionShape;
//BT_PROFILE("convexSweepConcave");
btConcaveShape* concaveShape = (btConcaveShape*)collisionShape;
btTransform worldTocollisionObject = colObjWorldTransform.inverse();
btVector3 convexFromLocal = worldTocollisionObject * convexFromTrans.getOrigin();
btVector3 convexToLocal = worldTocollisionObject * convexToTrans.getOrigin();
@ -520,10 +539,10 @@ void btCollisionWorld::objectQuerySingle(const btConvexShape* castShape,const bt
{
btCollisionWorld::ConvexResultCallback* m_resultCallback;
btCollisionObject* m_collisionObject;
btTriangleMeshShape* m_triangleMesh;
btConcaveShape* m_triangleMesh;
BridgeTriangleConvexcastCallback(const btConvexShape* castShape, const btTransform& from,const btTransform& to,
btCollisionWorld::ConvexResultCallback* resultCallback, btCollisionObject* collisionObject,btTriangleMeshShape* triangleMesh, const btTransform& triangleToWorld):
btCollisionWorld::ConvexResultCallback* resultCallback, btCollisionObject* collisionObject,btConcaveShape* triangleMesh, const btTransform& triangleToWorld):
btTriangleConvexcastCallback(castShape, from,to, triangleToWorld, triangleMesh->getMargin()),
m_resultCallback(resultCallback),
m_collisionObject(collisionObject),
@ -556,7 +575,7 @@ void btCollisionWorld::objectQuerySingle(const btConvexShape* castShape,const bt
};
BridgeTriangleConvexcastCallback tccb(castShape, convexFromTrans,convexToTrans,&resultCallback,collisionObject,triangleMesh, colObjWorldTransform);
BridgeTriangleConvexcastCallback tccb(castShape, convexFromTrans,convexToTrans,&resultCallback,collisionObject,concaveShape, colObjWorldTransform);
tccb.m_hitFraction = resultCallback.m_closestHitFraction;
btVector3 boxMinLocal, boxMaxLocal;
castShape->getAabb(rotationXform, boxMinLocal, boxMaxLocal);
@ -567,12 +586,13 @@ void btCollisionWorld::objectQuerySingle(const btConvexShape* castShape,const bt
rayAabbMaxLocal.setMax(convexToLocal);
rayAabbMinLocal += boxMinLocal;
rayAabbMaxLocal += boxMaxLocal;
triangleMesh->processAllTriangles(&tccb,rayAabbMinLocal,rayAabbMaxLocal);
concaveShape->processAllTriangles(&tccb,rayAabbMinLocal,rayAabbMaxLocal);
}
} else {
//todo: use AABB tree or other BVH acceleration structure!
///@todo : use AABB tree or other BVH acceleration structure!
if (collisionShape->isCompound())
{
BT_PROFILE("convexSweepCompound");
const btCompoundShape* compoundShape = static_cast<const btCompoundShape*>(collisionShape);
int i=0;
for (i=0;i<compoundShape->getNumChildShapes();i++)
@ -596,51 +616,173 @@ void btCollisionWorld::objectQuerySingle(const btConvexShape* castShape,const bt
}
}
void btCollisionWorld::rayTest(const btVector3& rayFromWorld, const btVector3& rayToWorld, RayResultCallback& resultCallback) const
struct btSingleRayCallback : public btBroadphaseRayCallback
{
btVector3 m_rayFromWorld;
btVector3 m_rayToWorld;
btTransform m_rayFromTrans;
btTransform m_rayToTrans;
btVector3 m_hitNormal;
btTransform rayFromTrans,rayToTrans;
rayFromTrans.setIdentity();
rayFromTrans.setOrigin(rayFromWorld);
rayToTrans.setIdentity();
const btCollisionWorld* m_world;
btCollisionWorld::RayResultCallback& m_resultCallback;
rayToTrans.setOrigin(rayToWorld);
/// go over all objects, and if the ray intersects their aabb, do a ray-shape query using convexCaster (CCD)
int i;
for (i=0;i<m_collisionObjects.size();i++)
btSingleRayCallback(const btVector3& rayFromWorld,const btVector3& rayToWorld,const btCollisionWorld* world,btCollisionWorld::RayResultCallback& resultCallback)
:m_rayFromWorld(rayFromWorld),
m_rayToWorld(rayToWorld),
m_world(world),
m_resultCallback(resultCallback)
{
///terminate further ray tests, once the closestHitFraction reached zero
if (resultCallback.m_closestHitFraction == btScalar(0.f))
break;
m_rayFromTrans.setIdentity();
m_rayFromTrans.setOrigin(m_rayFromWorld);
m_rayToTrans.setIdentity();
m_rayToTrans.setOrigin(m_rayToWorld);
btCollisionObject* collisionObject= m_collisionObjects[i];
//only perform raycast if filterMask matches
if(resultCallback.needsCollision(collisionObject->getBroadphaseHandle())) {
//RigidcollisionObject* collisionObject = ctrl->GetRigidcollisionObject();
btVector3 collisionObjectAabbMin,collisionObjectAabbMax;
collisionObject->getCollisionShape()->getAabb(collisionObject->getWorldTransform(),collisionObjectAabbMin,collisionObjectAabbMax);
btVector3 rayDir = (rayToWorld-rayFromWorld);
btScalar hitLambda = resultCallback.m_closestHitFraction;
btVector3 hitNormal;
if (btRayAabb(rayFromWorld,rayToWorld,collisionObjectAabbMin,collisionObjectAabbMax,hitLambda,hitNormal))
{
rayTestSingle(rayFromTrans,rayToTrans,
collisionObject,
collisionObject->getCollisionShape(),
collisionObject->getWorldTransform(),
resultCallback);
}
}
rayDir.normalize ();
///what about division by zero? --> just set rayDirection[i] to INF/1e30
m_rayDirectionInverse[0] = rayDir[0] == btScalar(0.0) ? btScalar(1e30) : btScalar(1.0) / rayDir[0];
m_rayDirectionInverse[1] = rayDir[1] == btScalar(0.0) ? btScalar(1e30) : btScalar(1.0) / rayDir[1];
m_rayDirectionInverse[2] = rayDir[2] == btScalar(0.0) ? btScalar(1e30) : btScalar(1.0) / rayDir[2];
m_signs[0] = m_rayDirectionInverse[0] < 0.0;
m_signs[1] = m_rayDirectionInverse[1] < 0.0;
m_signs[2] = m_rayDirectionInverse[2] < 0.0;
m_lambda_max = rayDir.dot(m_rayToWorld-m_rayFromWorld);
}
virtual bool process(const btBroadphaseProxy* proxy)
{
///terminate further ray tests, once the closestHitFraction reached zero
if (m_resultCallback.m_closestHitFraction == btScalar(0.f))
return false;
btCollisionObject* collisionObject = (btCollisionObject*)proxy->m_clientObject;
//only perform raycast if filterMask matches
if(m_resultCallback.needsCollision(collisionObject->getBroadphaseHandle()))
{
//RigidcollisionObject* collisionObject = ctrl->GetRigidcollisionObject();
//btVector3 collisionObjectAabbMin,collisionObjectAabbMax;
#if 0
#ifdef RECALCULATE_AABB
btVector3 collisionObjectAabbMin,collisionObjectAabbMax;
collisionObject->getCollisionShape()->getAabb(collisionObject->getWorldTransform(),collisionObjectAabbMin,collisionObjectAabbMax);
#else
//getBroadphase()->getAabb(collisionObject->getBroadphaseHandle(),collisionObjectAabbMin,collisionObjectAabbMax);
const btVector3& collisionObjectAabbMin = collisionObject->getBroadphaseHandle()->m_aabbMin;
const btVector3& collisionObjectAabbMax = collisionObject->getBroadphaseHandle()->m_aabbMax;
#endif
#endif
//btScalar hitLambda = m_resultCallback.m_closestHitFraction;
//culling already done by broadphase
//if (btRayAabb(m_rayFromWorld,m_rayToWorld,collisionObjectAabbMin,collisionObjectAabbMax,hitLambda,m_hitNormal))
{
m_world->rayTestSingle(m_rayFromTrans,m_rayToTrans,
collisionObject,
collisionObject->getCollisionShape(),
collisionObject->getWorldTransform(),
m_resultCallback);
}
}
return true;
}
};
void btCollisionWorld::rayTest(const btVector3& rayFromWorld, const btVector3& rayToWorld, RayResultCallback& resultCallback) const
{
BT_PROFILE("rayTest");
/// use the broadphase to accelerate the search for objects, based on their aabb
/// and for each object with ray-aabb overlap, perform an exact ray test
btSingleRayCallback rayCB(rayFromWorld,rayToWorld,this,resultCallback);
#ifndef USE_BRUTEFORCE_RAYBROADPHASE
m_broadphasePairCache->rayTest(rayFromWorld,rayToWorld,rayCB);
#else
for (int i=0;i<this->getNumCollisionObjects();i++)
{
rayCB.process(m_collisionObjects[i]->getBroadphaseHandle());
}
#endif //USE_BRUTEFORCE_RAYBROADPHASE
}
void btCollisionWorld::convexSweepTest(const btConvexShape* castShape, const btTransform& convexFromWorld, const btTransform& convexToWorld, ConvexResultCallback& resultCallback) const
struct btSingleSweepCallback : public btBroadphaseRayCallback
{
btTransform m_convexFromTrans;
btTransform m_convexToTrans;
btVector3 m_hitNormal;
const btCollisionWorld* m_world;
btCollisionWorld::ConvexResultCallback& m_resultCallback;
btScalar m_allowedCcdPenetration;
const btConvexShape* m_castShape;
btSingleSweepCallback(const btConvexShape* castShape, const btTransform& convexFromTrans,const btTransform& convexToTrans,const btCollisionWorld* world,btCollisionWorld::ConvexResultCallback& resultCallback,btScalar allowedPenetration)
:m_convexFromTrans(convexFromTrans),
m_convexToTrans(convexToTrans),
m_world(world),
m_resultCallback(resultCallback),
m_allowedCcdPenetration(allowedPenetration),
m_castShape(castShape)
{
btVector3 unnormalizedRayDir = (m_convexToTrans.getOrigin()-m_convexFromTrans.getOrigin());
btVector3 rayDir = unnormalizedRayDir.normalized();
///what about division by zero? --> just set rayDirection[i] to INF/1e30
m_rayDirectionInverse[0] = rayDir[0] == btScalar(0.0) ? btScalar(1e30) : btScalar(1.0) / rayDir[0];
m_rayDirectionInverse[1] = rayDir[1] == btScalar(0.0) ? btScalar(1e30) : btScalar(1.0) / rayDir[1];
m_rayDirectionInverse[2] = rayDir[2] == btScalar(0.0) ? btScalar(1e30) : btScalar(1.0) / rayDir[2];
m_signs[0] = m_rayDirectionInverse[0] < 0.0;
m_signs[1] = m_rayDirectionInverse[1] < 0.0;
m_signs[2] = m_rayDirectionInverse[2] < 0.0;
m_lambda_max = rayDir.dot(unnormalizedRayDir);
}
virtual bool process(const btBroadphaseProxy* proxy)
{
///terminate further convex sweep tests, once the closestHitFraction reached zero
if (m_resultCallback.m_closestHitFraction == btScalar(0.f))
return false;
btCollisionObject* collisionObject = (btCollisionObject*)proxy->m_clientObject;
//only perform raycast if filterMask matches
if(m_resultCallback.needsCollision(collisionObject->getBroadphaseHandle())) {
//RigidcollisionObject* collisionObject = ctrl->GetRigidcollisionObject();
m_world->objectQuerySingle(m_castShape, m_convexFromTrans,m_convexToTrans,
collisionObject,
collisionObject->getCollisionShape(),
collisionObject->getWorldTransform(),
m_resultCallback,
m_allowedCcdPenetration);
}
return true;
}
};
void btCollisionWorld::convexSweepTest(const btConvexShape* castShape, const btTransform& convexFromWorld, const btTransform& convexToWorld, ConvexResultCallback& resultCallback, btScalar allowedCcdPenetration) const
{
BT_PROFILE("convexSweepTest");
/// use the broadphase to accelerate the search for objects, based on their aabb
/// and for each object with ray-aabb overlap, perform an exact ray test
/// unfortunately the implementation for rayTest and convexSweepTest duplicated, albeit practically identical
btTransform convexFromTrans,convexToTrans;
convexFromTrans = convexFromWorld;
convexToTrans = convexToWorld;
@ -649,12 +791,21 @@ void btCollisionWorld::convexSweepTest(const btConvexShape* castShape, const btT
{
btVector3 linVel, angVel;
btTransformUtil::calculateVelocity (convexFromTrans, convexToTrans, 1.0, linVel, angVel);
btVector3 zeroLinVel;
zeroLinVel.setValue(0,0,0);
btTransform R;
R.setIdentity ();
R.setRotation (convexFromTrans.getRotation());
castShape->calculateTemporalAabb (R, linVel, angVel, 1.0, castShapeAabbMin, castShapeAabbMax);
castShape->calculateTemporalAabb (R, zeroLinVel, angVel, 1.0, castShapeAabbMin, castShapeAabbMax);
}
#ifndef USE_BRUTEFORCE_RAYBROADPHASE
btSingleSweepCallback convexCB(castShape,convexFromWorld,convexToWorld,this,resultCallback,allowedCcdPenetration);
m_broadphasePairCache->rayTest(convexFromTrans.getOrigin(),convexToTrans.getOrigin(),convexCB,castShapeAabbMin,castShapeAabbMax);
#else
/// go over all objects, and if the ray intersects their aabb + cast shape aabb,
// do a ray-shape query using convexCaster (CCD)
int i;
@ -676,9 +827,9 @@ void btCollisionWorld::convexSweepTest(const btConvexShape* castShape, const btT
collisionObject->getCollisionShape(),
collisionObject->getWorldTransform(),
resultCallback,
getDispatchInfo().m_allowedCcdPenetration);
allowedCcdPenetration);
}
}
}
#endif //USE_BRUTEFORCE_RAYBROADPHASE
}

@ -1,6 +1,6 @@
/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
Copyright (c) 2003-2006 Erwin Coumans http://bulletphysics.com/Bullet/
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
@ -22,39 +22,39 @@ subject to the following restrictions:
*
* Bullet is a Collision Detection and Rigid Body Dynamics Library. The Library is Open Source and free for commercial use, under the ZLib license ( http://opensource.org/licenses/zlib-license.php ).
*
* There is the Physics Forum for Feedback and bteral Collision Detection and Physics discussions.
* Please visit http://www.continuousphysics.com/Bullet/phpBB2/index.php
* There is the Physics Forum for feedback and general Collision Detection and Physics discussions.
* Please visit http://www.bulletphysics.com
*
* @section install_sec Installation
*
* @subsection step1 Step 1: Download
* You can download the Bullet Physics Library from our website: http://www.continuousphysics.com/Bullet/
* You can download the Bullet Physics Library from the Google Code repository: http://code.google.com/p/bullet/downloads/list
* @subsection step2 Step 2: Building
* Bullet comes with autogenerated Project Files for Microsoft Visual Studio 6, 7, 7.1 and 8.
* The main Workspace/Solution is located in Bullet/msvc/8/wksbullet.sln (replace 8 with your version).
*
* Under other platforms, like Linux or Mac OS-X, Bullet can be build using either using cmake, http://www.cmake.org, or jam, http://www.perforce.com/jam/jam.html . cmake can autogenerate Xcode, KDevelop, MSVC and other build systems. just run cmake . in the root of Bullet.
* Under other platforms, like Linux or Mac OS-X, Bullet can be build using either using make, cmake, http://www.cmake.org , or jam, http://www.perforce.com/jam/jam.html . cmake can autogenerate Xcode, KDevelop, MSVC and other build systems. just run cmake . in the root of Bullet.
* So if you are not using MSVC or cmake, you can run ./autogen.sh ./configure to create both Makefile and Jamfile and then run make or jam.
* Jam is a build system that can build the library, demos and also autogenerate the MSVC Project Files.
* So if you are not using MSVC, you can run configure and jam .
* If you don't have jam installed, you can make jam from the included jam-2.5 sources, or download jam from ftp://ftp.perforce.com/pub/jam/
* If you don't have jam installed, you can make jam from the included jam-2.5 sources, or download jam from ftp://ftp.perforce.com/jam
*
* @subsection step3 Step 3: Testing demos
* Try to run and experiment with CcdPhysicsDemo executable as a starting point.
* Try to run and experiment with BasicDemo executable as a starting point.
* Bullet can be used in several ways, as Full Rigid Body simulation, as Collision Detector Library or Low Level / Snippets like the GJK Closest Point calculation.
* The Dependencies can be seen in this documentation under Directories
*
* @subsection step4 Step 4: Integrating in your application, Full Rigid Body Simulation
* Check out CcdPhysicsDemo how to create a btDynamicsWorld, btRigidBody and btCollisionShape, Stepping the simulation and synchronizing your graphics object transform.
* PLEASE NOTE THE CcdPhysicsEnvironment and CcdPhysicsController is obsolete and will be removed. It has been replaced by classes derived frmo btDynamicsWorld and btRididBody
* @subsection step4 Step 4: Integrating in your application, full Rigid Body and Soft Body simulation
* Check out BasicDemo how to create a btDynamicsWorld, btRigidBody and btCollisionShape, Stepping the simulation and synchronizing your graphics object transform.
* Check out SoftDemo how to use soft body dynamics, using btSoftRigidDynamicsWorld.
* @subsection step5 Step 5 : Integrate the Collision Detection Library (without Dynamics and other Extras)
* Bullet Collision Detection can also be used without the Dynamics/Extras.
* Check out btCollisionWorld and btCollisionObject, and the CollisionInterfaceDemo. Also in Extras/test_BulletOde.cpp there is a sample Collision Detection integration with Open Dynamics Engine, ODE, http://www.ode.org
* Check out btCollisionWorld and btCollisionObject, and the CollisionInterfaceDemo.
* @subsection step6 Step 6 : Use Snippets like the GJK Closest Point calculation.
* Bullet has been designed in a modular way keeping dependencies to a minimum. The ConvexHullDistance demo demonstrates direct use of btGjkPairDetector.
*
* @section copyright Copyright
* Copyright (C) 2005-2007 Erwin Coumans, some contributions Copyright Gino van den Bergen, Christer Ericson, Simon Hobbs, Ricardo Padrela, F Richter(res), Stephane Redon
* Special thanks to all visitors of the Bullet Physics forum, and in particular above contributors, Dave Eberle, Dirk Gregorius, Erin Catto, Dave Eberle, Adam Moravanszky,
* Copyright (C) 2005-2008 Erwin Coumans, some contributions Copyright Gino van den Bergen, Christer Ericson, Simon Hobbs, Ricardo Padrela, F Richter(res), Stephane Redon
* Special thanks to all visitors of the Bullet Physics forum, and in particular above contributors, John McCutchan, Nathanael Presson, Dave Eberle, Dirk Gregorius, Erin Catto, Dave Eberle, Adam Moravanszky,
* Pierre Terdiman, Kenny Erleben, Russell Smith, Oliver Strunk, Jan Paul van Waveren, Marten Svanfeldt.
*
*/
@ -71,7 +71,7 @@ class btBroadphaseInterface;
#include "LinearMath/btVector3.h"
#include "LinearMath/btTransform.h"
#include "btCollisionObject.h"
#include "btCollisionDispatcher.h" //for definition of btCollisionObjectArray
#include "btCollisionDispatcher.h"
#include "BulletCollision/BroadphaseCollision/btOverlappingPairCache.h"
#include "LinearMath/btAlignedObjectArray.h"
@ -107,6 +107,11 @@ public:
m_broadphasePairCache = pairCache;
}
const btBroadphaseInterface* getBroadphase() const
{
return m_broadphasePairCache;
}
btBroadphaseInterface* getBroadphase()
{
return m_broadphasePairCache;
@ -128,8 +133,10 @@ public:
return m_dispatcher1;
}
virtual void updateAabbs();
void updateSingleAabb(btCollisionObject* colObj);
virtual void updateAabbs();
virtual void setDebugDrawer(btIDebugDraw* debugDrawer)
{
m_debugDrawer = debugDrawer;
@ -179,6 +186,8 @@ public:
btCollisionObject* m_collisionObject;
short int m_collisionFilterGroup;
short int m_collisionFilterMask;
//@BP Mod - Custom flags, currently used to enable backface culling on tri-meshes, see btRaycastCallback
unsigned int m_flags;
virtual ~RayResultCallback()
{
@ -192,7 +201,9 @@ public:
:m_closestHitFraction(btScalar(1.)),
m_collisionObject(0),
m_collisionFilterGroup(btBroadphaseProxy::DefaultFilter),
m_collisionFilterMask(btBroadphaseProxy::AllFilter)
m_collisionFilterMask(btBroadphaseProxy::AllFilter),
//@BP Mod
m_flags(0)
{
}
@ -347,7 +358,7 @@ public:
// convexTest performs a swept convex cast on all objects in the btCollisionWorld, and calls the resultCallback
// This allows for several queries: first hit, all hits, any hit, dependent on the value return by the callback.
void convexSweepTest (const btConvexShape* castShape, const btTransform& from, const btTransform& to, ConvexResultCallback& resultCallback) const;
void convexSweepTest (const btConvexShape* castShape, const btTransform& from, const btTransform& to, ConvexResultCallback& resultCallback, btScalar allowedCcdPenetration = btScalar(0.)) const;
/// rayTestSingle performs a raycast call and calls the resultCallback. It is used internally by rayTest.

@ -19,19 +19,32 @@ subject to the following restrictions:
#include "BulletCollision/BroadphaseCollision/btDbvt.h"
#include "LinearMath/btIDebugDraw.h"
#include "LinearMath/btAabbUtil2.h"
#include "btManifoldResult.h"
btCompoundCollisionAlgorithm::btCompoundCollisionAlgorithm( const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1,bool isSwapped)
:btCollisionAlgorithm(ci),
:btActivatingCollisionAlgorithm(ci,body0,body1),
m_isSwapped(isSwapped),
m_sharedManifold(ci.m_manifold)
{
m_ownsManifold = false;
btCollisionObject* colObj = m_isSwapped? body1 : body0;
btCollisionObject* otherObj = m_isSwapped? body0 : body1;
assert (colObj->getCollisionShape()->isCompound());
btAssert (colObj->getCollisionShape()->isCompound());
btCompoundShape* compoundShape = static_cast<btCompoundShape*>(colObj->getCollisionShape());
m_compoundShapeRevision = compoundShape->getUpdateRevision();
preallocateChildAlgorithms(body0,body1);
}
void btCompoundCollisionAlgorithm::preallocateChildAlgorithms(btCollisionObject* body0,btCollisionObject* body1)
{
btCollisionObject* colObj = m_isSwapped? body1 : body0;
btCollisionObject* otherObj = m_isSwapped? body0 : body1;
btAssert (colObj->getCollisionShape()->isCompound());
btCompoundShape* compoundShape = static_cast<btCompoundShape*>(colObj->getCollisionShape());
int numChildren = compoundShape->getNumChildShapes();
int i;
@ -46,14 +59,13 @@ m_sharedManifold(ci.m_manifold)
btCollisionShape* tmpShape = colObj->getCollisionShape();
btCollisionShape* childShape = compoundShape->getChildShape(i);
colObj->internalSetTemporaryCollisionShape( childShape );
m_childCollisionAlgorithms[i] = ci.m_dispatcher1->findAlgorithm(colObj,otherObj,m_sharedManifold);
m_childCollisionAlgorithms[i] = m_dispatcher->findAlgorithm(colObj,otherObj,m_sharedManifold);
colObj->internalSetTemporaryCollisionShape( tmpShape );
}
}
}
btCompoundCollisionAlgorithm::~btCompoundCollisionAlgorithm()
void btCompoundCollisionAlgorithm::removeChildAlgorithms()
{
int numChildren = m_childCollisionAlgorithms.size();
int i;
@ -67,6 +79,11 @@ btCompoundCollisionAlgorithm::~btCompoundCollisionAlgorithm()
}
}
btCompoundCollisionAlgorithm::~btCompoundCollisionAlgorithm()
{
removeChildAlgorithms();
}
@ -167,13 +184,50 @@ void btCompoundCollisionAlgorithm::processCollision (btCollisionObject* body0,bt
btCollisionObject* colObj = m_isSwapped? body1 : body0;
btCollisionObject* otherObj = m_isSwapped? body0 : body1;
assert (colObj->getCollisionShape()->isCompound());
btAssert (colObj->getCollisionShape()->isCompound());
btCompoundShape* compoundShape = static_cast<btCompoundShape*>(colObj->getCollisionShape());
///btCompoundShape might have changed:
////make sure the internal child collision algorithm caches are still valid
if (compoundShape->getUpdateRevision() != m_compoundShapeRevision)
{
///clear and update all
removeChildAlgorithms();
preallocateChildAlgorithms(body0,body1);
}
btDbvt* tree = compoundShape->getDynamicAabbTree();
//use a dynamic aabb tree to cull potential child-overlaps
btCompoundLeafCallback callback(colObj,otherObj,m_dispatcher,dispatchInfo,resultOut,&m_childCollisionAlgorithms[0],m_sharedManifold);
///we need to refresh all contact manifolds
///note that we should actually recursively traverse all children, btCompoundShape can nested more then 1 level deep
///so we should add a 'refreshManifolds' in the btCollisionAlgorithm
{
int i;
btManifoldArray manifoldArray;
for (i=0;i<m_childCollisionAlgorithms.size();i++)
{
if (m_childCollisionAlgorithms[i])
{
m_childCollisionAlgorithms[i]->getAllContactManifolds(manifoldArray);
for (int m=0;m<manifoldArray.size();m++)
{
if (manifoldArray[m]->getNumContacts())
{
resultOut->setPersistentManifold(manifoldArray[m]);
resultOut->refreshContactPoints();
resultOut->setPersistentManifold(0);//??necessary?
}
}
manifoldArray.clear();
}
}
}
if (tree)
{
@ -242,7 +296,7 @@ btScalar btCompoundCollisionAlgorithm::calculateTimeOfImpact(btCollisionObject*
btCollisionObject* colObj = m_isSwapped? body1 : body0;
btCollisionObject* otherObj = m_isSwapped? body0 : body1;
assert (colObj->getCollisionShape()->isCompound());
btAssert (colObj->getCollisionShape()->isCompound());
btCompoundShape* compoundShape = static_cast<btCompoundShape*>(colObj->getCollisionShape());
@ -285,3 +339,4 @@ btScalar btCompoundCollisionAlgorithm::calculateTimeOfImpact(btCollisionObject*
}

@ -16,7 +16,7 @@ subject to the following restrictions:
#ifndef COMPOUND_COLLISION_ALGORITHM_H
#define COMPOUND_COLLISION_ALGORITHM_H
#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h"
#include "btActivatingCollisionAlgorithm.h"
#include "BulletCollision/BroadphaseCollision/btDispatcher.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseInterface.h"
@ -26,16 +26,23 @@ class btDispatcher;
#include "btCollisionCreateFunc.h"
#include "LinearMath/btAlignedObjectArray.h"
class btDispatcher;
class btCollisionObject;
/// btCompoundCollisionAlgorithm supports collision between CompoundCollisionShapes and other collision shapes
class btCompoundCollisionAlgorithm : public btCollisionAlgorithm
class btCompoundCollisionAlgorithm : public btActivatingCollisionAlgorithm
{
btAlignedObjectArray<btCollisionAlgorithm*> m_childCollisionAlgorithms;
bool m_isSwapped;
class btPersistentManifold* m_sharedManifold;
bool m_ownsManifold;
int m_compoundShapeRevision;//to keep track of changes, so that childAlgorithm array can be updated
void removeChildAlgorithms();
void preallocateChildAlgorithms(btCollisionObject* body0,btCollisionObject* body1);
public:
btCompoundCollisionAlgorithm( const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1,bool isSwapped);

@ -27,7 +27,7 @@ subject to the following restrictions:
#include "BulletCollision/NarrowPhaseCollision/btSubSimplexConvexCast.h"
btConvexConcaveCollisionAlgorithm::btConvexConcaveCollisionAlgorithm( const btCollisionAlgorithmConstructionInfo& ci, btCollisionObject* body0,btCollisionObject* body1,bool isSwapped)
: btCollisionAlgorithm(ci),
: btActivatingCollisionAlgorithm(ci,body0,body1),
m_isSwapped(isSwapped),
m_btConvexTriangleCallback(ci.m_dispatcher1,body0,body1,isSwapped)
{
@ -72,7 +72,7 @@ btConvexTriangleCallback::~btConvexTriangleCallback()
void btConvexTriangleCallback::clearCache()
{
m_dispatcher->clearManifold(m_manifoldPtr);
};
}
@ -93,7 +93,7 @@ void btConvexTriangleCallback::processTriangle(btVector3* triangle,int partId, i
///debug drawing of the overlapping triangles
if (m_dispatchInfoPtr && m_dispatchInfoPtr->m_debugDraw && m_dispatchInfoPtr->m_debugDraw->getDebugMode() > 0)
if (m_dispatchInfoPtr && m_dispatchInfoPtr->m_debugDraw && (m_dispatchInfoPtr->m_debugDraw->getDebugMode() &btIDebugDraw::DBG_DrawWireframe ))
{
btVector3 color(255,255,0);
btTransform& tr = ob->getWorldTransform();

@ -16,7 +16,7 @@ subject to the following restrictions:
#ifndef CONVEX_CONCAVE_COLLISION_ALGORITHM_H
#define CONVEX_CONCAVE_COLLISION_ALGORITHM_H
#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h"
#include "btActivatingCollisionAlgorithm.h"
#include "BulletCollision/BroadphaseCollision/btDispatcher.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseInterface.h"
#include "BulletCollision/CollisionShapes/btTriangleCallback.h"
@ -34,8 +34,8 @@ class btConvexTriangleCallback : public btTriangleCallback
btVector3 m_aabbMin;
btVector3 m_aabbMax ;
btManifoldResult* m_resultOut;
btManifoldResult* m_resultOut;
btDispatcher* m_dispatcher;
const btDispatcherInfo* m_dispatchInfoPtr;
btScalar m_collisionMarginTriangle;
@ -70,7 +70,7 @@ int m_triangleCount;
/// btConvexConcaveCollisionAlgorithm supports collision between convex shapes and (concave) trianges meshes.
class btConvexConcaveCollisionAlgorithm : public btCollisionAlgorithm
class btConvexConcaveCollisionAlgorithm : public btActivatingCollisionAlgorithm
{
bool m_isSwapped;
@ -78,6 +78,7 @@ class btConvexConcaveCollisionAlgorithm : public btCollisionAlgorithm
btConvexTriangleCallback m_btConvexTriangleCallback;
public:
btConvexConcaveCollisionAlgorithm( const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1,bool isSwapped);

@ -38,7 +38,7 @@ subject to the following restrictions:
#include "BulletCollision/NarrowPhaseCollision/btMinkowskiPenetrationDepthSolver.h"
#include "BulletCollision/NarrowPhaseCollision/btGjkEpa.h"
#include "BulletCollision/NarrowPhaseCollision/btGjkEpa2.h"
#include "BulletCollision/NarrowPhaseCollision/btGjkEpaPenetrationDepthSolver.h"
@ -51,6 +51,8 @@ subject to the following restrictions:
btConvexConvexAlgorithm::CreateFunc::CreateFunc(btSimplexSolverInterface* simplexSolver, btConvexPenetrationDepthSolver* pdSolver)
{
m_numPerturbationIterations = 0;
m_minimumPointsPerturbationThreshold = 3;
m_simplexSolver = simplexSolver;
m_pdSolver = pdSolver;
}
@ -59,17 +61,22 @@ btConvexConvexAlgorithm::CreateFunc::~CreateFunc()
{
}
btConvexConvexAlgorithm::btConvexConvexAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1,btSimplexSolverInterface* simplexSolver, btConvexPenetrationDepthSolver* pdSolver)
: btCollisionAlgorithm(ci),
m_gjkPairDetector(0,0,simplexSolver,pdSolver),
btConvexConvexAlgorithm::btConvexConvexAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1,btSimplexSolverInterface* simplexSolver, btConvexPenetrationDepthSolver* pdSolver,int numPerturbationIterations, int minimumPointsPerturbationThreshold)
: btActivatingCollisionAlgorithm(ci,body0,body1),
m_simplexSolver(simplexSolver),
m_pdSolver(pdSolver),
m_ownManifold (false),
m_manifoldPtr(mf),
m_lowLevelOfDetail(false)
m_lowLevelOfDetail(false),
#ifdef USE_SEPDISTANCE_UTIL2
,m_sepDistance((static_cast<btConvexShape*>(body0->getCollisionShape()))->getAngularMotionDisc(),
(static_cast<btConvexShape*>(body1->getCollisionShape()))->getAngularMotionDisc()),
#endif
m_numPerturbationIterations(numPerturbationIterations),
m_minimumPointsPerturbationThreshold(minimumPointsPerturbationThreshold)
{
(void)body0;
(void)body1;
}
@ -90,8 +97,63 @@ void btConvexConvexAlgorithm ::setLowLevelOfDetail(bool useLowLevel)
}
struct btPerturbedContactResult : public btManifoldResult
{
btManifoldResult* m_originalManifoldResult;
btTransform m_transformA;
btTransform m_transformB;
btTransform m_unPerturbedTransform;
bool m_perturbA;
btIDebugDraw* m_debugDrawer;
btPerturbedContactResult(btManifoldResult* originalResult,const btTransform& transformA,const btTransform& transformB,const btTransform& unPerturbedTransform,bool perturbA,btIDebugDraw* debugDrawer)
:m_originalManifoldResult(originalResult),
m_transformA(transformA),
m_transformB(transformB),
m_perturbA(perturbA),
m_unPerturbedTransform(unPerturbedTransform),
m_debugDrawer(debugDrawer)
{
}
virtual ~ btPerturbedContactResult()
{
}
virtual void addContactPoint(const btVector3& normalOnBInWorld,const btVector3& pointInWorld,btScalar orgDepth)
{
btVector3 endPt,startPt;
btScalar newDepth;
btVector3 newNormal;
if (m_perturbA)
{
btVector3 endPtOrg = pointInWorld + normalOnBInWorld*orgDepth;
endPt = (m_unPerturbedTransform*m_transformA.inverse())(endPtOrg);
newDepth = (endPt - pointInWorld).dot(normalOnBInWorld);
startPt = endPt+normalOnBInWorld*newDepth;
} else
{
endPt = pointInWorld + normalOnBInWorld*orgDepth;
startPt = (m_unPerturbedTransform*m_transformB.inverse())(pointInWorld);
newDepth = (endPt - startPt).dot(normalOnBInWorld);
}
//#define DEBUG_CONTACTS 1
#ifdef DEBUG_CONTACTS
m_debugDrawer->drawLine(startPt,endPt,btVector3(1,0,0));
m_debugDrawer->drawSphere(startPt,0.05,btVector3(0,1,0));
m_debugDrawer->drawSphere(endPt,0.05,btVector3(0,0,1));
#endif //DEBUG_CONTACTS
m_originalManifoldResult->addContactPoint(normalOnBInWorld,startPt,newDepth);
}
};
extern btScalar gContactBreakingThreshold;
//
// Convex-Convex collision algorithm
@ -107,39 +169,125 @@ void btConvexConvexAlgorithm ::processCollision (btCollisionObject* body0,btColl
}
resultOut->setPersistentManifold(m_manifoldPtr);
#ifdef USE_BT_GJKEPA
btConvexShape* shape0(static_cast<btConvexShape*>(body0->getCollisionShape()));
btConvexShape* shape1(static_cast<btConvexShape*>(body1->getCollisionShape()));
const btScalar radialmargin(0/*shape0->getMargin()+shape1->getMargin()*/);
btGjkEpaSolver::sResults results;
if(btGjkEpaSolver::Collide( shape0,body0->getWorldTransform(),
shape1,body1->getWorldTransform(),
radialmargin,results))
{
dispatchInfo.m_debugDraw->drawLine(results.witnesses[1],results.witnesses[1]+results.normal,btVector3(255,0,0));
resultOut->addContactPoint(results.normal,results.witnesses[1],-results.depth);
}
#else
//comment-out next line to test multi-contact generation
//resultOut->getPersistentManifold()->clearManifold();
btConvexShape* min0 = static_cast<btConvexShape*>(body0->getCollisionShape());
btConvexShape* min1 = static_cast<btConvexShape*>(body1->getCollisionShape());
#ifdef USE_SEPDISTANCE_UTIL2
m_sepDistance.updateSeparatingDistance(body0->getWorldTransform(),body1->getWorldTransform());
if (!dispatchInfo.m_useConvexConservativeDistanceUtil || m_sepDistance.getConservativeSeparatingDistance()<=0.f)
#endif //USE_SEPDISTANCE_UTIL2
{
btGjkPairDetector::ClosestPointInput input;
btGjkPairDetector gjkPairDetector(min0,min1,m_simplexSolver,m_pdSolver);
//TODO: if (dispatchInfo.m_useContinuous)
m_gjkPairDetector.setMinkowskiA(min0);
m_gjkPairDetector.setMinkowskiB(min1);
input.m_maximumDistanceSquared = min0->getMargin() + min1->getMargin() + m_manifoldPtr->getContactBreakingThreshold();
input.m_maximumDistanceSquared*= input.m_maximumDistanceSquared;
input.m_stackAlloc = dispatchInfo.m_stackAllocator;
gjkPairDetector.setMinkowskiA(min0);
gjkPairDetector.setMinkowskiB(min1);
// input.m_maximumDistanceSquared = btScalar(1e30);
#ifdef USE_SEPDISTANCE_UTIL2
if (dispatchInfo.m_useConvexConservativeDistanceUtil)
{
input.m_maximumDistanceSquared = 1e30f;
} else
#endif //USE_SEPDISTANCE_UTIL2
{
input.m_maximumDistanceSquared = min0->getMargin() + min1->getMargin() + m_manifoldPtr->getContactBreakingThreshold();
input.m_maximumDistanceSquared*= input.m_maximumDistanceSquared;
}
input.m_stackAlloc = dispatchInfo.m_stackAllocator;
input.m_transformA = body0->getWorldTransform();
input.m_transformB = body1->getWorldTransform();
gjkPairDetector.getClosestPoints(input,*resultOut,dispatchInfo.m_debugDraw);
btScalar sepDist = gjkPairDetector.getCachedSeparatingDistance()+dispatchInfo.m_convexConservativeDistanceThreshold;
//now perturbe directions to get multiple contact points
btVector3 v0,v1;
btVector3 sepNormalWorldSpace = gjkPairDetector.getCachedSeparatingAxis().normalized();
btPlaneSpace1(sepNormalWorldSpace,v0,v1);
//now perform 'm_numPerturbationIterations' collision queries with the perturbated collision objects
m_gjkPairDetector.getClosestPoints(input,*resultOut,dispatchInfo.m_debugDraw);
//perform perturbation when more then 'm_minimumPointsPerturbationThreshold' points
if (resultOut->getPersistentManifold()->getNumContacts() < m_minimumPointsPerturbationThreshold)
{
int i;
bool perturbeA = true;
const btScalar angleLimit = 0.125f * SIMD_PI;
btScalar perturbeAngle;
btScalar radiusA = min0->getAngularMotionDisc();
btScalar radiusB = min1->getAngularMotionDisc();
if (radiusA < radiusB)
{
perturbeAngle = gContactBreakingThreshold /radiusA;
perturbeA = true;
} else
{
perturbeAngle = gContactBreakingThreshold / radiusB;
perturbeA = false;
}
if ( perturbeAngle > angleLimit )
perturbeAngle = angleLimit;
btTransform unPerturbedTransform;
if (perturbeA)
{
unPerturbedTransform = input.m_transformA;
} else
{
unPerturbedTransform = input.m_transformB;
}
for ( i=0;i<m_numPerturbationIterations;i++)
{
btQuaternion perturbeRot(v0,perturbeAngle);
btScalar iterationAngle = i*(SIMD_2_PI/btScalar(m_numPerturbationIterations));
btQuaternion rotq(sepNormalWorldSpace,iterationAngle);
if (perturbeA)
{
input.m_transformA.setBasis( btMatrix3x3(rotq.inverse()*perturbeRot*rotq)*body0->getWorldTransform().getBasis());
input.m_transformB = body1->getWorldTransform();
#ifdef DEBUG_CONTACTS
dispatchInfo.m_debugDraw->drawTransform(input.m_transformA,10.0);
#endif //DEBUG_CONTACTS
} else
{
input.m_transformA = body0->getWorldTransform();
input.m_transformB.setBasis( btMatrix3x3(rotq.inverse()*perturbeRot*rotq)*body1->getWorldTransform().getBasis());
#ifdef DEBUG_CONTACTS
dispatchInfo.m_debugDraw->drawTransform(input.m_transformB,10.0);
#endif
}
btPerturbedContactResult perturbedResultOut(resultOut,input.m_transformA,input.m_transformB,unPerturbedTransform,perturbeA,dispatchInfo.m_debugDraw);
gjkPairDetector.getClosestPoints(input,perturbedResultOut,dispatchInfo.m_debugDraw);
}
}
#ifdef USE_SEPDISTANCE_UTIL2
if (dispatchInfo.m_useConvexConservativeDistanceUtil)
{
m_sepDistance.initSeparatingDistance(gjkPairDetector.getCachedSeparatingAxis(),sepDist,body0->getWorldTransform(),body1->getWorldTransform());
}
#endif //USE_SEPDISTANCE_UTIL2
}
if (m_ownManifold)
{

@ -16,30 +16,50 @@ subject to the following restrictions:
#ifndef CONVEX_CONVEX_ALGORITHM_H
#define CONVEX_CONVEX_ALGORITHM_H
#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h"
#include "btActivatingCollisionAlgorithm.h"
#include "BulletCollision/NarrowPhaseCollision/btGjkPairDetector.h"
#include "BulletCollision/NarrowPhaseCollision/btPersistentManifold.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h"
#include "BulletCollision/NarrowPhaseCollision/btVoronoiSimplexSolver.h"
#include "btCollisionCreateFunc.h"
#include "btCollisionDispatcher.h"
#include "LinearMath/btTransformUtil.h" //for btConvexSeparatingDistanceUtil
class btConvexPenetrationDepthSolver;
///ConvexConvexAlgorithm collision algorithm implements time of impact, convex closest points and penetration depth calculations.
class btConvexConvexAlgorithm : public btCollisionAlgorithm
{
btGjkPairDetector m_gjkPairDetector;
public:
///Enabling USE_SEPDISTANCE_UTIL2 requires 100% reliable distance computation. However, when using large size ratios GJK can be imprecise
///so the distance is not conservative. In that case, enabling this USE_SEPDISTANCE_UTIL2 would result in failing/missing collisions.
///Either improve GJK for large size ratios (testing a 100 units versus a 0.1 unit object) or only enable the util
///for certain pairs that have a small size ratio
///#define USE_SEPDISTANCE_UTIL2 1
///The convexConvexAlgorithm collision algorithm implements time of impact, convex closest points and penetration depth calculations between two convex objects.
///Multiple contact points are calculated by perturbing the orientation of the smallest object orthogonal to the separating normal.
///This idea was described by Gino van den Bergen in this forum topic http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=4&t=288&p=888#p888
class btConvexConvexAlgorithm : public btActivatingCollisionAlgorithm
{
#ifdef USE_SEPDISTANCE_UTIL2
btConvexSeparatingDistanceUtil m_sepDistance;
#endif
btSimplexSolverInterface* m_simplexSolver;
btConvexPenetrationDepthSolver* m_pdSolver;
bool m_ownManifold;
btPersistentManifold* m_manifoldPtr;
bool m_lowLevelOfDetail;
int m_numPerturbationIterations;
int m_minimumPointsPerturbationThreshold;
///cache separating vector to speedup collision detection
public:
btConvexConvexAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1, btSimplexSolverInterface* simplexSolver, btConvexPenetrationDepthSolver* pdSolver);
btConvexConvexAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1, btSimplexSolverInterface* simplexSolver, btConvexPenetrationDepthSolver* pdSolver, int numPerturbationIterations, int minimumPointsPerturbationThreshold);
virtual ~btConvexConvexAlgorithm();
@ -65,9 +85,12 @@ public:
struct CreateFunc :public btCollisionAlgorithmCreateFunc
{
btConvexPenetrationDepthSolver* m_pdSolver;
btSimplexSolverInterface* m_simplexSolver;
int m_numPerturbationIterations;
int m_minimumPointsPerturbationThreshold;
CreateFunc(btSimplexSolverInterface* simplexSolver, btConvexPenetrationDepthSolver* pdSolver);
virtual ~CreateFunc();
@ -75,7 +98,7 @@ public:
virtual btCollisionAlgorithm* CreateCollisionAlgorithm(btCollisionAlgorithmConstructionInfo& ci, btCollisionObject* body0,btCollisionObject* body1)
{
void* mem = ci.m_dispatcher1->allocateCollisionAlgorithm(sizeof(btConvexConvexAlgorithm));
return new(mem) btConvexConvexAlgorithm(ci.m_manifold,ci,body0,body1,m_simplexSolver,m_pdSolver);
return new(mem) btConvexConvexAlgorithm(ci.m_manifold,ci,body0,body1,m_simplexSolver,m_pdSolver,m_numPerturbationIterations,m_minimumPointsPerturbationThreshold);
}
};

@ -4,8 +4,8 @@ Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
@ -22,15 +22,17 @@ subject to the following restrictions:
//#include <stdio.h>
btConvexPlaneCollisionAlgorithm::btConvexPlaneCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* col0,btCollisionObject* col1, bool isSwapped)
btConvexPlaneCollisionAlgorithm::btConvexPlaneCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* col0,btCollisionObject* col1, bool isSwapped, int numPerturbationIterations,int minimumPointsPerturbationThreshold)
: btCollisionAlgorithm(ci),
m_ownManifold(false),
m_manifoldPtr(mf),
m_isSwapped(isSwapped)
m_isSwapped(isSwapped),
m_numPerturbationIterations(numPerturbationIterations),
m_minimumPointsPerturbationThreshold(minimumPointsPerturbationThreshold)
{
btCollisionObject* convexObj = m_isSwapped? col1 : col0;
btCollisionObject* planeObj = m_isSwapped? col0 : col1;
if (!m_manifoldPtr && m_dispatcher->needsCollision(convexObj,planeObj))
{
m_manifoldPtr = m_dispatcher->getNewManifold(convexObj,planeObj);
@ -48,30 +50,28 @@ btConvexPlaneCollisionAlgorithm::~btConvexPlaneCollisionAlgorithm()
}
}
void btConvexPlaneCollisionAlgorithm::processCollision (btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut)
void btConvexPlaneCollisionAlgorithm::collideSingleContact (const btQuaternion& perturbeRot, btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut)
{
(void)dispatchInfo;
(void)resultOut;
if (!m_manifoldPtr)
return;
btCollisionObject* convexObj = m_isSwapped? body1 : body0;
btCollisionObject* convexObj = m_isSwapped? body1 : body0;
btCollisionObject* planeObj = m_isSwapped? body0: body1;
btConvexShape* convexShape = (btConvexShape*) convexObj->getCollisionShape();
btStaticPlaneShape* planeShape = (btStaticPlaneShape*) planeObj->getCollisionShape();
bool hasCollision = false;
bool hasCollision = false;
const btVector3& planeNormal = planeShape->getPlaneNormal();
const btScalar& planeConstant = planeShape->getPlaneConstant();
btTransform planeInConvex;
planeInConvex= convexObj->getWorldTransform().inverse() * planeObj->getWorldTransform();
btTransform convexWorldTransform = convexObj->getWorldTransform();
btTransform convexInPlaneTrans;
convexInPlaneTrans= planeObj->getWorldTransform().inverse() * convexObj->getWorldTransform();
convexInPlaneTrans= planeObj->getWorldTransform().inverse() * convexWorldTransform;
//now perturbe the convex-world transform
convexWorldTransform.getBasis()*=btMatrix3x3(perturbeRot);
btTransform planeInConvex;
planeInConvex= convexWorldTransform.inverse() * planeObj->getWorldTransform();
btVector3 vtx = convexShape->localGetSupportingVertex(planeInConvex.getBasis()*-planeNormal);
btVector3 vtxInPlane = convexInPlaneTrans(vtx);
btScalar distance = (planeNormal.dot(vtxInPlane) - planeConstant);
@ -87,6 +87,53 @@ void btConvexPlaneCollisionAlgorithm::processCollision (btCollisionObject* body0
btVector3 pOnB = vtxInPlaneWorld;
resultOut->addContactPoint(normalOnSurfaceB,pOnB,distance);
}
}
void btConvexPlaneCollisionAlgorithm::processCollision (btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut)
{
(void)dispatchInfo;
if (!m_manifoldPtr)
return;
btCollisionObject* convexObj = m_isSwapped? body1 : body0;
btCollisionObject* planeObj = m_isSwapped? body0: body1;
btConvexShape* convexShape = (btConvexShape*) convexObj->getCollisionShape();
btStaticPlaneShape* planeShape = (btStaticPlaneShape*) planeObj->getCollisionShape();
bool hasCollision = false;
const btVector3& planeNormal = planeShape->getPlaneNormal();
const btScalar& planeConstant = planeShape->getPlaneConstant();
//first perform a collision query with the non-perturbated collision objects
{
btQuaternion rotq(0,0,0,1);
collideSingleContact(rotq,body0,body1,dispatchInfo,resultOut);
}
if (resultOut->getPersistentManifold()->getNumContacts()<m_minimumPointsPerturbationThreshold)
{
btVector3 v0,v1;
btPlaneSpace1(planeNormal,v0,v1);
//now perform 'm_numPerturbationIterations' collision queries with the perturbated collision objects
const btScalar angleLimit = 0.125f * SIMD_PI;
btScalar perturbeAngle;
btScalar radius = convexShape->getAngularMotionDisc();
perturbeAngle = gContactBreakingThreshold / radius;
if ( perturbeAngle > angleLimit )
perturbeAngle = angleLimit;
btQuaternion perturbeRot(v0,perturbeAngle);
for (int i=0;i<m_numPerturbationIterations;i++)
{
btScalar iterationAngle = i*(SIMD_2_PI/btScalar(m_numPerturbationIterations));
btQuaternion rotq(planeNormal,iterationAngle);
collideSingleContact(rotq.inverse()*perturbeRot*rotq,body0,body1,dispatchInfo,resultOut);
}
}
if (m_ownManifold)
{
if (m_manifoldPtr->getNumContacts())

@ -4,8 +4,8 @@ Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
@ -28,18 +28,22 @@ class btPersistentManifold;
/// Other features are frame-coherency (persistent data) and collision response.
class btConvexPlaneCollisionAlgorithm : public btCollisionAlgorithm
{
bool m_ownManifold;
bool m_ownManifold;
btPersistentManifold* m_manifoldPtr;
bool m_isSwapped;
bool m_isSwapped;
int m_numPerturbationIterations;
int m_minimumPointsPerturbationThreshold;
public:
btConvexPlaneCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* col0,btCollisionObject* col1, bool isSwapped);
btConvexPlaneCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* col0,btCollisionObject* col1, bool isSwapped, int numPerturbationIterations,int minimumPointsPerturbationThreshold);
virtual ~btConvexPlaneCollisionAlgorithm();
virtual void processCollision (btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut);
void collideSingleContact (const btQuaternion& perturbeRot, btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut);
virtual btScalar calculateTimeOfImpact(btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut);
virtual void getAllContactManifolds(btManifoldArray& manifoldArray)
@ -52,15 +56,24 @@ public:
struct CreateFunc :public btCollisionAlgorithmCreateFunc
{
int m_numPerturbationIterations;
int m_minimumPointsPerturbationThreshold;
CreateFunc()
: m_numPerturbationIterations(3),
m_minimumPointsPerturbationThreshold(3)
{
}
virtual btCollisionAlgorithm* CreateCollisionAlgorithm(btCollisionAlgorithmConstructionInfo& ci, btCollisionObject* body0,btCollisionObject* body1)
{
void* mem = ci.m_dispatcher1->allocateCollisionAlgorithm(sizeof(btConvexPlaneCollisionAlgorithm));
if (!m_swapped)
{
return new(mem) btConvexPlaneCollisionAlgorithm(0,ci,body0,body1,false);
return new(mem) btConvexPlaneCollisionAlgorithm(0,ci,body0,body1,false,m_numPerturbationIterations,m_minimumPointsPerturbationThreshold);
} else
{
return new(mem) btConvexPlaneCollisionAlgorithm(0,ci,body0,body1,true);
return new(mem) btConvexPlaneCollisionAlgorithm(0,ci,body0,body1,true,m_numPerturbationIterations,m_minimumPointsPerturbationThreshold);
}
}
};

@ -100,11 +100,10 @@ btDefaultCollisionConfiguration::btDefaultCollisionConfiguration(const btDefault
int maxSize = sizeof(btConvexConvexAlgorithm);
int maxSize2 = sizeof(btConvexConcaveCollisionAlgorithm);
int maxSize3 = sizeof(btCompoundCollisionAlgorithm);
int maxSize4 = sizeof(btEmptyAlgorithm);
int sl = sizeof(btConvexSeparatingDistanceUtil);
sl = sizeof(btGjkPairDetector);
int collisionAlgorithmMaxElementSize = btMax(maxSize,maxSize2);
collisionAlgorithmMaxElementSize = btMax(collisionAlgorithmMaxElementSize,maxSize3);
collisionAlgorithmMaxElementSize = btMax(collisionAlgorithmMaxElementSize,maxSize4);
if (constructionInfo.m_stackAlloc)
{
@ -289,3 +288,10 @@ btCollisionAlgorithmCreateFunc* btDefaultCollisionConfiguration::getCollisionAlg
//failed to find an algorithm
return m_emptyCreateFunc;
}
void btDefaultCollisionConfiguration::setConvexConvexMultipointIterations(int numPerturbationIterations, int minimumPointsPerturbationThreshold)
{
btConvexConvexAlgorithm::CreateFunc* convexConvex = (btConvexConvexAlgorithm::CreateFunc*) m_convexConvexCreateFunc;
convexConvex->m_numPerturbationIterations = numPerturbationIterations;
convexConvex->m_minimumPointsPerturbationThreshold = minimumPointsPerturbationThreshold;
}

@ -33,9 +33,9 @@ struct btDefaultCollisionConstructionInfo
:m_stackAlloc(0),
m_persistentManifoldPool(0),
m_collisionAlgorithmPool(0),
m_defaultMaxPersistentManifoldPoolSize(65535),
m_defaultMaxCollisionAlgorithmPoolSize(65535),
m_defaultStackAllocatorSize(5*1024*1024)
m_defaultMaxPersistentManifoldPoolSize(4096),
m_defaultMaxCollisionAlgorithmPoolSize(4096),
m_defaultStackAllocatorSize(0)
{
}
};
@ -44,7 +44,7 @@ struct btDefaultCollisionConstructionInfo
///btCollisionConfiguration allows to configure Bullet collision detection
///stack allocator, pool memory allocators
///todo: describe the meaning
///@todo: describe the meaning
class btDefaultCollisionConfiguration : public btCollisionConfiguration
{
@ -111,6 +111,14 @@ public:
virtual btCollisionAlgorithmCreateFunc* getCollisionAlgorithmCreateFunc(int proxyType0,int proxyType1);
///Use this method to allow to generate multiple contact points between at once, between two objects using the generic convex-convex algorithm.
///By default, this feature is disabled for best performance.
///@param numPerturbationIterations controls the number of collision queries. Set it to zero to disable the feature.
///@param minimumPointsPerturbationThreshold is the minimum number of points in the contact cache, above which the feature is disabled
///3 is a good value for both params, if you want to enable the feature. This is because the default contact cache contains a maximum of 4 points, and one collision query at the unperturbed orientation is performed first.
///See Bullet/Demos/CollisionDemo for an example how this feature gathers multiple points.
///@todo we could add a per-object setting of those parameters, for level-of-detail collision detection.
void setConvexConvexMultipointIterations(int numPerturbationIterations=3, int minimumPointsPerturbationThreshold = 3);
};

@ -0,0 +1,171 @@
/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2008 Erwin Coumans http://bulletphysics.com
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "btGhostObject.h"
#include "btCollisionWorld.h"
#include "BulletCollision/CollisionShapes/btConvexShape.h"
#include "LinearMath/btAabbUtil2.h"
btGhostObject::btGhostObject()
{
m_internalType = CO_GHOST_OBJECT;
}
btGhostObject::~btGhostObject()
{
///btGhostObject should have been removed from the world, so no overlapping objects
btAssert(!m_overlappingObjects.size());
}
void btGhostObject::addOverlappingObjectInternal(btBroadphaseProxy* otherProxy,btBroadphaseProxy* thisProxy)
{
btCollisionObject* otherObject = (btCollisionObject*)otherProxy->m_clientObject;
btAssert(otherObject);
///if this linearSearch becomes too slow (too many overlapping objects) we should add a more appropriate data structure
int index = m_overlappingObjects.findLinearSearch(otherObject);
if (index==m_overlappingObjects.size())
{
//not found
m_overlappingObjects.push_back(otherObject);
}
}
void btGhostObject::removeOverlappingObjectInternal(btBroadphaseProxy* otherProxy,btDispatcher* dispatcher,btBroadphaseProxy* thisProxy)
{
btCollisionObject* otherObject = (btCollisionObject*)otherProxy->m_clientObject;
btAssert(otherObject);
int index = m_overlappingObjects.findLinearSearch(otherObject);
if (index<m_overlappingObjects.size())
{
m_overlappingObjects[index] = m_overlappingObjects[m_overlappingObjects.size()-1];
m_overlappingObjects.pop_back();
}
}
btPairCachingGhostObject::btPairCachingGhostObject()
{
m_hashPairCache = new (btAlignedAlloc(sizeof(btHashedOverlappingPairCache),16)) btHashedOverlappingPairCache();
}
btPairCachingGhostObject::~btPairCachingGhostObject()
{
m_hashPairCache->~btHashedOverlappingPairCache();
btAlignedFree( m_hashPairCache );
}
void btPairCachingGhostObject::addOverlappingObjectInternal(btBroadphaseProxy* otherProxy,btBroadphaseProxy* thisProxy)
{
btBroadphaseProxy*actualThisProxy = thisProxy ? thisProxy : getBroadphaseHandle();
btAssert(actualThisProxy);
btCollisionObject* otherObject = (btCollisionObject*)otherProxy->m_clientObject;
btAssert(otherObject);
int index = m_overlappingObjects.findLinearSearch(otherObject);
if (index==m_overlappingObjects.size())
{
m_overlappingObjects.push_back(otherObject);
m_hashPairCache->addOverlappingPair(actualThisProxy,otherProxy);
}
}
void btPairCachingGhostObject::removeOverlappingObjectInternal(btBroadphaseProxy* otherProxy,btDispatcher* dispatcher,btBroadphaseProxy* thisProxy1)
{
btCollisionObject* otherObject = (btCollisionObject*)otherProxy->m_clientObject;
btBroadphaseProxy* actualThisProxy = thisProxy1 ? thisProxy1 : getBroadphaseHandle();
btAssert(actualThisProxy);
btAssert(otherObject);
int index = m_overlappingObjects.findLinearSearch(otherObject);
if (index<m_overlappingObjects.size())
{
m_overlappingObjects[index] = m_overlappingObjects[m_overlappingObjects.size()-1];
m_overlappingObjects.pop_back();
m_hashPairCache->removeOverlappingPair(actualThisProxy,otherProxy,dispatcher);
}
}
void btGhostObject::convexSweepTest(const btConvexShape* castShape, const btTransform& convexFromWorld, const btTransform& convexToWorld, btCollisionWorld::ConvexResultCallback& resultCallback, btScalar allowedCcdPenetration) const
{
btTransform convexFromTrans,convexToTrans;
convexFromTrans = convexFromWorld;
convexToTrans = convexToWorld;
btVector3 castShapeAabbMin, castShapeAabbMax;
/* Compute AABB that encompasses angular movement */
{
btVector3 linVel, angVel;
btTransformUtil::calculateVelocity (convexFromTrans, convexToTrans, 1.0, linVel, angVel);
btTransform R;
R.setIdentity ();
R.setRotation (convexFromTrans.getRotation());
castShape->calculateTemporalAabb (R, linVel, angVel, 1.0, castShapeAabbMin, castShapeAabbMax);
}
/// go over all objects, and if the ray intersects their aabb + cast shape aabb,
// do a ray-shape query using convexCaster (CCD)
int i;
for (i=0;i<m_overlappingObjects.size();i++)
{
btCollisionObject* collisionObject= m_overlappingObjects[i];
//only perform raycast if filterMask matches
if(resultCallback.needsCollision(collisionObject->getBroadphaseHandle())) {
//RigidcollisionObject* collisionObject = ctrl->GetRigidcollisionObject();
btVector3 collisionObjectAabbMin,collisionObjectAabbMax;
collisionObject->getCollisionShape()->getAabb(collisionObject->getWorldTransform(),collisionObjectAabbMin,collisionObjectAabbMax);
AabbExpand (collisionObjectAabbMin, collisionObjectAabbMax, castShapeAabbMin, castShapeAabbMax);
btScalar hitLambda = btScalar(1.); //could use resultCallback.m_closestHitFraction, but needs testing
btVector3 hitNormal;
if (btRayAabb(convexFromWorld.getOrigin(),convexToWorld.getOrigin(),collisionObjectAabbMin,collisionObjectAabbMax,hitLambda,hitNormal))
{
btCollisionWorld::objectQuerySingle(castShape, convexFromTrans,convexToTrans,
collisionObject,
collisionObject->getCollisionShape(),
collisionObject->getWorldTransform(),
resultCallback,
allowedCcdPenetration);
}
}
}
}
void btGhostObject::rayTest(const btVector3& rayFromWorld, const btVector3& rayToWorld, btCollisionWorld::RayResultCallback& resultCallback) const
{
btTransform rayFromTrans;
rayFromTrans.setIdentity();
rayFromTrans.setOrigin(rayFromWorld);
btTransform rayToTrans;
rayToTrans.setIdentity();
rayToTrans.setOrigin(rayToWorld);
int i;
for (i=0;i<m_overlappingObjects.size();i++)
{
btCollisionObject* collisionObject= m_overlappingObjects[i];
//only perform raycast if filterMask matches
if(resultCallback.needsCollision(collisionObject->getBroadphaseHandle()))
{
btCollisionWorld::rayTestSingle(rayFromTrans,rayToTrans,
collisionObject,
collisionObject->getCollisionShape(),
collisionObject->getWorldTransform(),
resultCallback);
}
}
}

@ -0,0 +1,174 @@
/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2008 Erwin Coumans http://bulletphysics.com
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef BT_GHOST_OBJECT_H
#define BT_GHOST_OBJECT_H
#include "btCollisionObject.h"
#include "BulletCollision/BroadphaseCollision/btOverlappingPairCallback.h"
#include "LinearMath/btAlignedAllocator.h"
#include "BulletCollision/BroadphaseCollision/btOverlappingPairCache.h"
#include "btCollisionWorld.h"
class btConvexShape;
class btDispatcher;
///The btGhostObject can keep track of all objects that are overlapping
///By default, this overlap is based on the AABB
///This is useful for creating a character controller, collision sensors/triggers, explosions etc.
///We plan on adding rayTest and other queries for the btGhostObject
ATTRIBUTE_ALIGNED16(class) btGhostObject : public btCollisionObject
{
protected:
btAlignedObjectArray<btCollisionObject*> m_overlappingObjects;
public:
btGhostObject();
virtual ~btGhostObject();
void convexSweepTest(const class btConvexShape* castShape, const btTransform& convexFromWorld, const btTransform& convexToWorld, btCollisionWorld::ConvexResultCallback& resultCallback, btScalar allowedCcdPenetration = 0.f) const;
void rayTest(const btVector3& rayFromWorld, const btVector3& rayToWorld, btCollisionWorld::RayResultCallback& resultCallback) const;
///this method is mainly for expert/internal use only.
virtual void addOverlappingObjectInternal(btBroadphaseProxy* otherProxy, btBroadphaseProxy* thisProxy=0);
///this method is mainly for expert/internal use only.
virtual void removeOverlappingObjectInternal(btBroadphaseProxy* otherProxy,btDispatcher* dispatcher,btBroadphaseProxy* thisProxy=0);
int getNumOverlappingObjects() const
{
return m_overlappingObjects.size();
}
btCollisionObject* getOverlappingObject(int index)
{
return m_overlappingObjects[index];
}
const btCollisionObject* getOverlappingObject(int index) const
{
return m_overlappingObjects[index];
}
btAlignedObjectArray<btCollisionObject*>& getOverlappingPairs()
{
return m_overlappingObjects;
}
const btAlignedObjectArray<btCollisionObject*> getOverlappingPairs() const
{
return m_overlappingObjects;
}
//
// internal cast
//
static const btGhostObject* upcast(const btCollisionObject* colObj)
{
if (colObj->getInternalType()==CO_GHOST_OBJECT)
return (const btGhostObject*)colObj;
return 0;
}
static btGhostObject* upcast(btCollisionObject* colObj)
{
if (colObj->getInternalType()==CO_GHOST_OBJECT)
return (btGhostObject*)colObj;
return 0;
}
};
class btPairCachingGhostObject : public btGhostObject
{
btHashedOverlappingPairCache* m_hashPairCache;
public:
btPairCachingGhostObject();
virtual ~btPairCachingGhostObject();
///this method is mainly for expert/internal use only.
virtual void addOverlappingObjectInternal(btBroadphaseProxy* otherProxy, btBroadphaseProxy* thisProxy=0);
virtual void removeOverlappingObjectInternal(btBroadphaseProxy* otherProxy,btDispatcher* dispatcher,btBroadphaseProxy* thisProxy=0);
btHashedOverlappingPairCache* getOverlappingPairCache()
{
return m_hashPairCache;
}
};
///The btGhostPairCallback interfaces and forwards adding and removal of overlapping pairs from the btBroadphaseInterface to btGhostObject.
class btGhostPairCallback : public btOverlappingPairCallback
{
public:
btGhostPairCallback()
{
}
virtual ~btGhostPairCallback()
{
}
virtual btBroadphasePair* addOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1)
{
btCollisionObject* colObj0 = (btCollisionObject*) proxy0->m_clientObject;
btCollisionObject* colObj1 = (btCollisionObject*) proxy1->m_clientObject;
btGhostObject* ghost0 = btGhostObject::upcast(colObj0);
btGhostObject* ghost1 = btGhostObject::upcast(colObj1);
if (ghost0)
ghost0->addOverlappingObjectInternal(proxy1, proxy0);
if (ghost1)
ghost1->addOverlappingObjectInternal(proxy0, proxy1);
return 0;
}
virtual void* removeOverlappingPair(btBroadphaseProxy* proxy0,btBroadphaseProxy* proxy1,btDispatcher* dispatcher)
{
btCollisionObject* colObj0 = (btCollisionObject*) proxy0->m_clientObject;
btCollisionObject* colObj1 = (btCollisionObject*) proxy1->m_clientObject;
btGhostObject* ghost0 = btGhostObject::upcast(colObj0);
btGhostObject* ghost1 = btGhostObject::upcast(colObj1);
if (ghost0)
ghost0->removeOverlappingObjectInternal(proxy1,dispatcher,proxy0);
if (ghost1)
ghost1->removeOverlappingObjectInternal(proxy0,dispatcher,proxy1);
return 0;
}
virtual void removeOverlappingPairsContainingProxy(btBroadphaseProxy* proxy0,btDispatcher* dispatcher)
{
btAssert(0);
//need to keep track of all ghost objects and call them here
//m_hashPairCache->removeOverlappingPairsContainingProxy(proxy0,dispatcher);
}
};
#endif

@ -55,7 +55,7 @@ btManifoldResult::btManifoldResult(btCollisionObject* body0,btCollisionObject* b
void btManifoldResult::addContactPoint(const btVector3& normalOnBInWorld,const btVector3& pointInWorld,btScalar depth)
{
assert(m_manifoldPtr);
btAssert(m_manifoldPtr);
//order in manifold needs to match
if (depth > m_manifoldPtr->getContactBreakingThreshold())
@ -92,8 +92,8 @@ void btManifoldResult::addContactPoint(const btVector3& normalOnBInWorld,const b
newPt.m_partId1 = m_partId1;
newPt.m_index0 = m_index0;
newPt.m_index1 = m_index1;
///todo, check this for any side effects
//printf("depth=%f\n",depth);
///@todo, check this for any side effects
if (insertIndex >= 0)
{
//const btManifoldPoint& oldPoint = m_manifoldPtr->getContactPoint(insertIndex);

@ -45,6 +45,8 @@ class btManifoldResult : public btDiscreteCollisionDetectorInterface::Result
int m_partId1;
int m_index0;
int m_index1;
public:
btManifoldResult()
@ -77,6 +79,7 @@ public:
m_index1=index1;
}
virtual void addContactPoint(const btVector3& normalOnBInWorld,const btVector3& pointInWorld,btScalar depth);
SIMD_FORCE_INLINE void refreshContactPoints()

@ -24,7 +24,8 @@ subject to the following restrictions:
//#include <stdio.h>
#include "LinearMath/btQuickprof.h"
btSimulationIslandManager::btSimulationIslandManager()
btSimulationIslandManager::btSimulationIslandManager():
m_splitIslands(true)
{
}
@ -43,10 +44,10 @@ void btSimulationIslandManager::findUnions(btDispatcher* /* dispatcher */,btColl
{
{
btBroadphasePair* pairPtr = colWorld->getPairCache()->getOverlappingPairArrayPtr();
for (int i=0;i<colWorld->getPairCache()->getNumOverlappingPairs();i++)
{
btBroadphasePair* pairPtr = colWorld->getPairCache()->getOverlappingPairArrayPtr();
const btBroadphasePair& collisionPair = pairPtr[i];
btCollisionObject* colObj0 = (btCollisionObject*)collisionPair.m_pProxy0->m_clientObject;
btCollisionObject* colObj1 = (btCollisionObject*)collisionPair.m_pProxy1->m_clientObject;
@ -143,11 +144,13 @@ class btPersistentManifoldSortPredicate
};
void btSimulationIslandManager::buildIslands(btDispatcher* dispatcher,btCollisionObjectArray& collisionObjects)
void btSimulationIslandManager::buildIslands(btDispatcher* dispatcher,btCollisionWorld* collisionWorld)
{
BT_PROFILE("islandUnionFindAndQuickSort");
btCollisionObjectArray& collisionObjects = collisionWorld->getCollisionObjectArray();
m_islandmanifold.resize(0);
//we are going to sort the unionfind array, and store the element id in the size
@ -183,7 +186,7 @@ void btSimulationIslandManager::buildIslands(btDispatcher* dispatcher,btCollisio
// printf("error in island management\n");
}
assert((colObj0->getIslandTag() == islandId) || (colObj0->getIslandTag() == -1));
btAssert((colObj0->getIslandTag() == islandId) || (colObj0->getIslandTag() == -1));
if (colObj0->getIslandTag() == islandId)
{
if (colObj0->getActivationState()== ACTIVE_TAG)
@ -210,7 +213,7 @@ void btSimulationIslandManager::buildIslands(btDispatcher* dispatcher,btCollisio
// printf("error in island management\n");
}
assert((colObj0->getIslandTag() == islandId) || (colObj0->getIslandTag() == -1));
btAssert((colObj0->getIslandTag() == islandId) || (colObj0->getIslandTag() == -1));
if (colObj0->getIslandTag() == islandId)
{
@ -231,13 +234,14 @@ void btSimulationIslandManager::buildIslands(btDispatcher* dispatcher,btCollisio
// printf("error in island management\n");
}
assert((colObj0->getIslandTag() == islandId) || (colObj0->getIslandTag() == -1));
btAssert((colObj0->getIslandTag() == islandId) || (colObj0->getIslandTag() == -1));
if (colObj0->getIslandTag() == islandId)
{
if ( colObj0->getActivationState() == ISLAND_SLEEPING)
{
colObj0->setActivationState( WANTS_DEACTIVATION);
colObj0->setDeactivationTime(0.f);
}
}
}
@ -248,11 +252,11 @@ void btSimulationIslandManager::buildIslands(btDispatcher* dispatcher,btCollisio
int i;
int maxNumManifolds = dispatcher->getNumManifolds();
#define SPLIT_ISLANDS 1
#ifdef SPLIT_ISLANDS
//#define SPLIT_ISLANDS 1
//#ifdef SPLIT_ISLANDS
#endif //SPLIT_ISLANDS
//#endif //SPLIT_ISLANDS
for (i=0;i<maxNumManifolds ;i++)
@ -262,7 +266,7 @@ void btSimulationIslandManager::buildIslands(btDispatcher* dispatcher,btCollisio
btCollisionObject* colObj0 = static_cast<btCollisionObject*>(manifold->getBody0());
btCollisionObject* colObj1 = static_cast<btCollisionObject*>(manifold->getBody1());
//todo: check sleeping conditions!
///@todo: check sleeping conditions!
if (((colObj0) && colObj0->getActivationState() != ISLAND_SLEEPING) ||
((colObj1) && colObj1->getActivationState() != ISLAND_SLEEPING))
{
@ -276,24 +280,24 @@ void btSimulationIslandManager::buildIslands(btDispatcher* dispatcher,btCollisio
{
colObj0->activate();
}
#ifdef SPLIT_ISLANDS
// //filtering for response
if (dispatcher->needsResponse(colObj0,colObj1))
m_islandmanifold.push_back(manifold);
#endif //SPLIT_ISLANDS
if(m_splitIslands)
{
//filtering for response
if (dispatcher->needsResponse(colObj0,colObj1))
m_islandmanifold.push_back(manifold);
}
}
}
}
//
// todo: this is random access, it can be walked 'cache friendly'!
//
void btSimulationIslandManager::buildAndProcessIslands(btDispatcher* dispatcher,btCollisionObjectArray& collisionObjects, IslandCallback* callback)
///@todo: this is random access, it can be walked 'cache friendly'!
void btSimulationIslandManager::buildAndProcessIslands(btDispatcher* dispatcher,btCollisionWorld* collisionWorld, IslandCallback* callback)
{
btCollisionObjectArray& collisionObjects = collisionWorld->getCollisionObjectArray();
buildIslands(dispatcher,collisionObjects);
buildIslands(dispatcher,collisionWorld);
int endIslandIndex=1;
int startIslandIndex;
@ -301,84 +305,86 @@ void btSimulationIslandManager::buildAndProcessIslands(btDispatcher* dispatcher,
BT_PROFILE("processIslands");
#ifndef SPLIT_ISLANDS
btPersistentManifold** manifold = dispatcher->getInternalManifoldPointer();
callback->ProcessIsland(&collisionObjects[0],collisionObjects.size(),manifold,maxNumManifolds, -1);
#else
// Sort manifolds, based on islands
// Sort the vector using predicate and std::sort
//std::sort(islandmanifold.begin(), islandmanifold.end(), btPersistentManifoldSortPredicate);
int numManifolds = int (m_islandmanifold.size());
//we should do radix sort, it it much faster (O(n) instead of O (n log2(n))
m_islandmanifold.quickSort(btPersistentManifoldSortPredicate());
//now process all active islands (sets of manifolds for now)
int startManifoldIndex = 0;
int endManifoldIndex = 1;
//int islandId;
// printf("Start Islands\n");
//traverse the simulation islands, and call the solver, unless all objects are sleeping/deactivated
for ( startIslandIndex=0;startIslandIndex<numElem;startIslandIndex = endIslandIndex)
if(!m_splitIslands)
{
int islandId = getUnionFind().getElement(startIslandIndex).m_id;
btPersistentManifold** manifold = dispatcher->getInternalManifoldPointer();
int maxNumManifolds = dispatcher->getNumManifolds();
callback->ProcessIsland(&collisionObjects[0],collisionObjects.size(),manifold,maxNumManifolds, -1);
}
else
{
// Sort manifolds, based on islands
// Sort the vector using predicate and std::sort
//std::sort(islandmanifold.begin(), islandmanifold.end(), btPersistentManifoldSortPredicate);
int numManifolds = int (m_islandmanifold.size());
bool islandSleeping = false;
for (endIslandIndex = startIslandIndex;(endIslandIndex<numElem) && (getUnionFind().getElement(endIslandIndex).m_id == islandId);endIslandIndex++)
{
int i = getUnionFind().getElement(endIslandIndex).m_sz;
btCollisionObject* colObj0 = collisionObjects[i];
m_islandBodies.push_back(colObj0);
if (!colObj0->isActive())
islandSleeping = true;
}
//we should do radix sort, it it much faster (O(n) instead of O (n log2(n))
m_islandmanifold.quickSort(btPersistentManifoldSortPredicate());
//find the accompanying contact manifold for this islandId
int numIslandManifolds = 0;
btPersistentManifold** startManifold = 0;
//now process all active islands (sets of manifolds for now)
if (startManifoldIndex<numManifolds)
int startManifoldIndex = 0;
int endManifoldIndex = 1;
//int islandId;
// printf("Start Islands\n");
//traverse the simulation islands, and call the solver, unless all objects are sleeping/deactivated
for ( startIslandIndex=0;startIslandIndex<numElem;startIslandIndex = endIslandIndex)
{
int curIslandId = getIslandId(m_islandmanifold[startManifoldIndex]);
if (curIslandId == islandId)
{
startManifold = &m_islandmanifold[startManifoldIndex];
for (endManifoldIndex = startManifoldIndex+1;(endManifoldIndex<numManifolds) && (islandId == getIslandId(m_islandmanifold[endManifoldIndex]));endManifoldIndex++)
{
int islandId = getUnionFind().getElement(startIslandIndex).m_id;
bool islandSleeping = false;
for (endIslandIndex = startIslandIndex;(endIslandIndex<numElem) && (getUnionFind().getElement(endIslandIndex).m_id == islandId);endIslandIndex++)
{
int i = getUnionFind().getElement(endIslandIndex).m_sz;
btCollisionObject* colObj0 = collisionObjects[i];
m_islandBodies.push_back(colObj0);
if (!colObj0->isActive())
islandSleeping = true;
}
//find the accompanying contact manifold for this islandId
int numIslandManifolds = 0;
btPersistentManifold** startManifold = 0;
if (startManifoldIndex<numManifolds)
{
int curIslandId = getIslandId(m_islandmanifold[startManifoldIndex]);
if (curIslandId == islandId)
{
startManifold = &m_islandmanifold[startManifoldIndex];
for (endManifoldIndex = startManifoldIndex+1;(endManifoldIndex<numManifolds) && (islandId == getIslandId(m_islandmanifold[endManifoldIndex]));endManifoldIndex++)
{
}
/// Process the actual simulation, only if not sleeping/deactivated
numIslandManifolds = endManifoldIndex-startManifoldIndex;
}
/// Process the actual simulation, only if not sleeping/deactivated
numIslandManifolds = endManifoldIndex-startManifoldIndex;
}
}
if (!islandSleeping)
{
callback->ProcessIsland(&m_islandBodies[0],m_islandBodies.size(),startManifold,numIslandManifolds, islandId);
// printf("Island callback of size:%d bodies, %d manifolds\n",islandBodies.size(),numIslandManifolds);
}
if (numIslandManifolds)
{
startManifoldIndex = endManifoldIndex;
}
if (!islandSleeping)
{
callback->ProcessIsland(&m_islandBodies[0],m_islandBodies.size(),startManifold,numIslandManifolds, islandId);
// printf("Island callback of size:%d bodies, %d manifolds\n",islandBodies.size(),numIslandManifolds);
m_islandBodies.resize(0);
}
if (numIslandManifolds)
{
startManifoldIndex = endManifoldIndex;
}
m_islandBodies.resize(0);
}
#endif //SPLIT_ISLANDS
} // else if(!splitIslands)
}

@ -19,7 +19,7 @@ subject to the following restrictions:
#include "BulletCollision/CollisionDispatch/btUnionFind.h"
#include "btCollisionCreateFunc.h"
#include "LinearMath/btAlignedObjectArray.h"
#include "btCollisionObject.h"
class btCollisionObject;
class btCollisionWorld;
@ -35,6 +35,7 @@ class btSimulationIslandManager
btAlignedObjectArray<btPersistentManifold*> m_islandmanifold;
btAlignedObjectArray<btCollisionObject* > m_islandBodies;
bool m_splitIslands;
public:
btSimulationIslandManager();
@ -61,9 +62,18 @@ public:
virtual void ProcessIsland(btCollisionObject** bodies,int numBodies,class btPersistentManifold** manifolds,int numManifolds, int islandId) = 0;
};
void buildAndProcessIslands(btDispatcher* dispatcher,btCollisionObjectArray& collisionObjects, IslandCallback* callback);
void buildAndProcessIslands(btDispatcher* dispatcher,btCollisionWorld* collisionWorld, IslandCallback* callback);
void buildIslands(btDispatcher* dispatcher,btCollisionObjectArray& collisionObjects);
void buildIslands(btDispatcher* dispatcher,btCollisionWorld* colWorld);
bool getSplitIslands()
{
return m_splitIslands;
}
void setSplitIslands(bool doSplitIslands)
{
m_splitIslands = doSplitIslands;
}
};

@ -21,7 +21,7 @@ subject to the following restrictions:
//#include <stdio.h>
btSphereBoxCollisionAlgorithm::btSphereBoxCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* col0,btCollisionObject* col1, bool isSwapped)
: btCollisionAlgorithm(ci),
: btActivatingCollisionAlgorithm(ci,col0,col1),
m_ownManifold(false),
m_manifoldPtr(mf),
m_isSwapped(isSwapped)

@ -16,7 +16,7 @@ subject to the following restrictions:
#ifndef SPHERE_BOX_COLLISION_ALGORITHM_H
#define SPHERE_BOX_COLLISION_ALGORITHM_H
#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h"
#include "btActivatingCollisionAlgorithm.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h"
#include "BulletCollision/CollisionDispatch/btCollisionCreateFunc.h"
class btPersistentManifold;
@ -26,7 +26,7 @@ class btPersistentManifold;
/// btSphereBoxCollisionAlgorithm provides sphere-box collision detection.
/// Other features are frame-coherency (persistent data) and collision response.
class btSphereBoxCollisionAlgorithm : public btCollisionAlgorithm
class btSphereBoxCollisionAlgorithm : public btActivatingCollisionAlgorithm
{
bool m_ownManifold;
btPersistentManifold* m_manifoldPtr;

@ -19,7 +19,7 @@ subject to the following restrictions:
#include "BulletCollision/CollisionDispatch/btCollisionObject.h"
btSphereSphereCollisionAlgorithm::btSphereSphereCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* col0,btCollisionObject* col1)
: btCollisionAlgorithm(ci),
: btActivatingCollisionAlgorithm(ci,col0,col1),
m_ownManifold(false),
m_manifoldPtr(mf)
{
@ -78,7 +78,7 @@ void btSphereSphereCollisionAlgorithm::processCollision (btCollisionObject* col0
}
///point on A (worldspace)
btVector3 pos0 = col0->getWorldTransform().getOrigin() - radius0 * normalOnSurfaceB;
///btVector3 pos0 = col0->getWorldTransform().getOrigin() - radius0 * normalOnSurfaceB;
///point on B (worldspace)
btVector3 pos1 = col1->getWorldTransform().getOrigin() + radius1* normalOnSurfaceB;

@ -16,7 +16,7 @@ subject to the following restrictions:
#ifndef SPHERE_SPHERE_COLLISION_ALGORITHM_H
#define SPHERE_SPHERE_COLLISION_ALGORITHM_H
#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h"
#include "btActivatingCollisionAlgorithm.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h"
#include "BulletCollision/CollisionDispatch/btCollisionCreateFunc.h"
#include "btCollisionDispatcher.h"
@ -26,7 +26,7 @@ class btPersistentManifold;
/// btSphereSphereCollisionAlgorithm provides sphere-sphere collision detection.
/// Other features are frame-coherency (persistent data) and collision response.
/// Also provides the most basic sample for custom/user btCollisionAlgorithm
class btSphereSphereCollisionAlgorithm : public btCollisionAlgorithm
class btSphereSphereCollisionAlgorithm : public btActivatingCollisionAlgorithm
{
bool m_ownManifold;
btPersistentManifold* m_manifoldPtr;
@ -35,7 +35,7 @@ public:
btSphereSphereCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1);
btSphereSphereCollisionAlgorithm(const btCollisionAlgorithmConstructionInfo& ci)
: btCollisionAlgorithm(ci) {}
: btActivatingCollisionAlgorithm(ci) {}
virtual void processCollision (btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut);

@ -22,7 +22,7 @@ subject to the following restrictions:
btSphereTriangleCollisionAlgorithm::btSphereTriangleCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* col0,btCollisionObject* col1,bool swapped)
: btCollisionAlgorithm(ci),
: btActivatingCollisionAlgorithm(ci,col0,col1),
m_ownManifold(false),
m_manifoldPtr(mf),
m_swapped(swapped)
@ -56,10 +56,10 @@ void btSphereTriangleCollisionAlgorithm::processCollision (btCollisionObject* co
/// report a contact. internally this will be kept persistent, and contact reduction is done
resultOut->setPersistentManifold(m_manifoldPtr);
SphereTriangleDetector detector(sphere,triangle);
SphereTriangleDetector detector(sphere,triangle, m_manifoldPtr->getContactBreakingThreshold());
btDiscreteCollisionDetectorInterface::ClosestPointInput input;
input.m_maximumDistanceSquared = btScalar(1e30);//todo: tighter bounds
input.m_maximumDistanceSquared = btScalar(1e30);///@todo: tighter bounds
input.m_transformA = sphereObj->getWorldTransform();
input.m_transformB = triObj->getWorldTransform();

@ -16,7 +16,7 @@ subject to the following restrictions:
#ifndef SPHERE_TRIANGLE_COLLISION_ALGORITHM_H
#define SPHERE_TRIANGLE_COLLISION_ALGORITHM_H
#include "BulletCollision/BroadphaseCollision/btCollisionAlgorithm.h"
#include "btActivatingCollisionAlgorithm.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h"
#include "BulletCollision/CollisionDispatch/btCollisionCreateFunc.h"
class btPersistentManifold;
@ -25,7 +25,7 @@ class btPersistentManifold;
/// btSphereSphereCollisionAlgorithm provides sphere-sphere collision detection.
/// Other features are frame-coherency (persistent data) and collision response.
/// Also provides the most basic sample for custom/user btCollisionAlgorithm
class btSphereTriangleCollisionAlgorithm : public btCollisionAlgorithm
class btSphereTriangleCollisionAlgorithm : public btActivatingCollisionAlgorithm
{
bool m_ownManifold;
btPersistentManifold* m_manifoldPtr;
@ -35,7 +35,7 @@ public:
btSphereTriangleCollisionAlgorithm(btPersistentManifold* mf,const btCollisionAlgorithmConstructionInfo& ci,btCollisionObject* body0,btCollisionObject* body1,bool swapped);
btSphereTriangleCollisionAlgorithm(const btCollisionAlgorithmConstructionInfo& ci)
: btCollisionAlgorithm(ci) {}
: btActivatingCollisionAlgorithm(ci) {}
virtual void processCollision (btCollisionObject* body0,btCollisionObject* body1,const btDispatcherInfo& dispatchInfo,btManifoldResult* resultOut);

@ -14,8 +14,6 @@ subject to the following restrictions:
*/
#include "btUnionFind.h"
#include <assert.h>

@ -98,8 +98,8 @@ class btUnionFind
int find(int x)
{
//assert(x < m_N);
//assert(x >= 0);
//btAssert(x < m_N);
//btAssert(x >= 0);
while (x != m_elements[x].m_id)
{
@ -110,8 +110,8 @@ class btUnionFind
m_elements[x].m_id = m_elements[m_elements[x].m_id].m_id;
#endif //
x = m_elements[x].m_id;
//assert(x < m_N);
//assert(x >= 0);
//btAssert(x < m_N);
//btAssert(x >= 0);
}
return x;

@ -19,7 +19,7 @@ subject to the following restrictions:
#include "btPolyhedralConvexShape.h"
#include "btCollisionMargin.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h"
#include "LinearMath/btPoint3.h"
#include "LinearMath/btVector3.h"
#include "LinearMath/btMinMax.h"
///The btBoxShape is a box primitive around the origin, its sides axis aligned with length specified by half extents, in local shape coordinates. When used as part of a btCollisionObject or btRigidBody it will be an oriented box in world space.
@ -45,8 +45,6 @@ public:
}
virtual int getShapeType() const { return BOX_SHAPE_PROXYTYPE;}
virtual btVector3 localGetSupportingVertex(const btVector3& vec) const
{
btVector3 halfExtents = getHalfExtentsWithoutMargin();
@ -82,8 +80,10 @@ public:
}
btBoxShape( const btVector3& boxHalfExtents)
btBoxShape( const btVector3& boxHalfExtents)
: btPolyhedralConvexShape()
{
m_shapeType = BOX_SHAPE_PROXYTYPE;
btVector3 margin(getMargin(),getMargin(),getMargin());
m_implicitShapeDimensions = (boxHalfExtents * m_localScaling) - margin;
};
@ -117,7 +117,7 @@ public:
virtual void calculateLocalInertia(btScalar mass,btVector3& inertia) const;
virtual void getPlane(btVector3& planeNormal,btPoint3& planeSupport,int i ) const
virtual void getPlane(btVector3& planeNormal,btVector3& planeSupport,int i ) const
{
//this plane might not be aligned...
btVector4 plane ;
@ -161,36 +161,30 @@ public:
switch (i)
{
case 0:
plane.setValue(btScalar(1.),btScalar(0.),btScalar(0.));
plane[3] = -halfExtents.x();
plane.setValue(btScalar(1.),btScalar(0.),btScalar(0.),-halfExtents.x());
break;
case 1:
plane.setValue(btScalar(-1.),btScalar(0.),btScalar(0.));
plane[3] = -halfExtents.x();
plane.setValue(btScalar(-1.),btScalar(0.),btScalar(0.),-halfExtents.x());
break;
case 2:
plane.setValue(btScalar(0.),btScalar(1.),btScalar(0.));
plane[3] = -halfExtents.y();
plane.setValue(btScalar(0.),btScalar(1.),btScalar(0.),-halfExtents.y());
break;
case 3:
plane.setValue(btScalar(0.),btScalar(-1.),btScalar(0.));
plane[3] = -halfExtents.y();
plane.setValue(btScalar(0.),btScalar(-1.),btScalar(0.),-halfExtents.y());
break;
case 4:
plane.setValue(btScalar(0.),btScalar(0.),btScalar(1.));
plane[3] = -halfExtents.z();
plane.setValue(btScalar(0.),btScalar(0.),btScalar(1.),-halfExtents.z());
break;
case 5:
plane.setValue(btScalar(0.),btScalar(0.),btScalar(-1.));
plane[3] = -halfExtents.z();
plane.setValue(btScalar(0.),btScalar(0.),btScalar(-1.),-halfExtents.z());
break;
default:
assert(0);
btAssert(0);
}
}
virtual void getEdge(int i,btPoint3& pa,btPoint3& pb) const
virtual void getEdge(int i,btVector3& pa,btVector3& pb) const
//virtual void getEdge(int i,Edge& edge) const
{
int edgeVert0 = 0;
@ -261,7 +255,7 @@ public:
virtual bool isInside(const btPoint3& pt,btScalar tolerance) const
virtual bool isInside(const btVector3& pt,btScalar tolerance) const
{
btVector3 halfExtents = getHalfExtentsWithoutMargin();
@ -312,7 +306,7 @@ public:
penetrationVector.setValue(btScalar(0.),btScalar(0.),btScalar(-1.));
break;
default:
assert(0);
btAssert(0);
}
}

@ -26,6 +26,7 @@ m_bvh(0),
m_useQuantizedAabbCompression(useQuantizedAabbCompression),
m_ownsBvh(false)
{
m_shapeType = TRIANGLE_MESH_SHAPE_PROXYTYPE;
//construct bvh from meshInterface
#ifndef DISABLE_BVH
@ -57,6 +58,7 @@ m_bvh(0),
m_useQuantizedAabbCompression(useQuantizedAabbCompression),
m_ownsBvh(false)
{
m_shapeType = TRIANGLE_MESH_SHAPE_PROXYTYPE;
//construct bvh from meshInterface
#ifndef DISABLE_BVH
@ -141,10 +143,19 @@ void btBvhTriangleMeshShape::performRaycast (btTriangleCallback* callback, const
for (int j=2;j>=0;j--)
{
int graphicsindex = indicestype==PHY_SHORT?((unsigned short*)gfxbase)[j]:gfxbase[j];
btScalar* graphicsbase = (btScalar*)(vertexbase+graphicsindex*stride);
m_triangle[j] = btVector3(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(),graphicsbase[2]*meshScaling.getZ());
if (type == PHY_FLOAT)
{
float* graphicsbase = (float*)(vertexbase+graphicsindex*stride);
m_triangle[j] = btVector3(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(),graphicsbase[2]*meshScaling.getZ());
}
else
{
double* graphicsbase = (double*)(vertexbase+graphicsindex*stride);
m_triangle[j] = btVector3(btScalar(graphicsbase[0])*meshScaling.getX(),btScalar(graphicsbase[1])*meshScaling.getY(),btScalar(graphicsbase[2])*meshScaling.getZ());
}
}
/* Perform ray vs. triangle collision here */
@ -202,9 +213,18 @@ void btBvhTriangleMeshShape::performConvexcast (btTriangleCallback* callback, co
{
int graphicsindex = indicestype==PHY_SHORT?((unsigned short*)gfxbase)[j]:gfxbase[j];
btScalar* graphicsbase = (btScalar*)(vertexbase+graphicsindex*stride);
if (type == PHY_FLOAT)
{
float* graphicsbase = (float*)(vertexbase+graphicsindex*stride);
m_triangle[j] = btVector3(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(),graphicsbase[2]*meshScaling.getZ());
m_triangle[j] = btVector3(graphicsbase[0]*meshScaling.getX(),graphicsbase[1]*meshScaling.getY(),graphicsbase[2]*meshScaling.getZ());
}
else
{
double* graphicsbase = (double*)(vertexbase+graphicsindex*stride);
m_triangle[j] = btVector3(btScalar(graphicsbase[0])*meshScaling.getX(),btScalar(graphicsbase[1])*meshScaling.getY(),btScalar(graphicsbase[2])*meshScaling.getZ());
}
}
/* Perform ray vs. triangle collision here */
@ -279,12 +299,24 @@ void btBvhTriangleMeshShape::processAllTriangles(btTriangleCallback* callback,co
#ifdef DEBUG_TRIANGLE_MESH
printf("%d ,",graphicsindex);
#endif //DEBUG_TRIANGLE_MESH
btScalar* graphicsbase = (btScalar*)(vertexbase+graphicsindex*stride);
if (type == PHY_FLOAT)
{
float* graphicsbase = (float*)(vertexbase+graphicsindex*stride);
m_triangle[j] = btVector3(
graphicsbase[0]*meshScaling.getX(),
graphicsbase[1]*meshScaling.getY(),
graphicsbase[2]*meshScaling.getZ());
}
else
{
double* graphicsbase = (double*)(vertexbase+graphicsindex*stride);
m_triangle[j] = btVector3(
graphicsbase[0]*meshScaling.getX(),
graphicsbase[1]*meshScaling.getY(),
graphicsbase[2]*meshScaling.getZ());
m_triangle[j] = btVector3(
btScalar(graphicsbase[0])*meshScaling.getX(),
btScalar(graphicsbase[1])*meshScaling.getY(),
btScalar(graphicsbase[2])*meshScaling.getZ());
}
#ifdef DEBUG_TRIANGLE_MESH
printf("triangle vertices:%f,%f,%f\n",triangle[j].x(),triangle[j].y(),triangle[j].z());
#endif //DEBUG_TRIANGLE_MESH

@ -37,7 +37,7 @@ public:
BT_DECLARE_ALIGNED_ALLOCATOR();
btBvhTriangleMeshShape() :btTriangleMeshShape(0),m_bvh(0),m_ownsBvh(false) {};
btBvhTriangleMeshShape() : btTriangleMeshShape(0),m_bvh(0),m_ownsBvh(false) {m_shapeType = TRIANGLE_MESH_SHAPE_PROXYTYPE;};
btBvhTriangleMeshShape(btStridingMeshInterface* meshInterface, bool useQuantizedAabbCompression, bool buildBvh = true);
///optionally pass in a larger bvh aabb, used for quantization. This allows for deformations within this aabb
@ -50,10 +50,7 @@ public:
return m_ownsBvh;
}
virtual int getShapeType() const
{
return TRIANGLE_MESH_SHAPE_PROXYTYPE;
}
void performRaycast (btTriangleCallback* callback, const btVector3& raySource, const btVector3& rayTarget);
void performConvexcast (btTriangleCallback* callback, const btVector3& boxSource, const btVector3& boxTarget, const btVector3& boxMin, const btVector3& boxMax);

@ -19,8 +19,9 @@ subject to the following restrictions:
#include "BulletCollision/CollisionShapes/btCollisionMargin.h"
#include "LinearMath/btQuaternion.h"
btCapsuleShape::btCapsuleShape(btScalar radius, btScalar height)
btCapsuleShape::btCapsuleShape(btScalar radius, btScalar height) : btConvexInternalShape ()
{
m_shapeType = CAPSULE_SHAPE_PROXYTYPE;
m_upAxis = 1;
m_implicitShapeDimensions.setValue(radius,0.5f*height,radius);
}

@ -30,7 +30,7 @@ protected:
protected:
///only used for btCapsuleShapeZ and btCapsuleShapeX subclasses.
btCapsuleShape() {};
btCapsuleShape() : btConvexInternalShape() {m_shapeType = CAPSULE_SHAPE_PROXYTYPE;};
public:
btCapsuleShape(btScalar radius,btScalar height);
@ -43,15 +43,13 @@ public:
virtual void batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
virtual int getShapeType() const { return CAPSULE_SHAPE_PROXYTYPE; }
virtual void getAabb (const btTransform& t, btVector3& aabbMin, btVector3& aabbMax) const
{
btVector3 halfExtents(getRadius(),getRadius(),getRadius());
halfExtents[m_upAxis] = getRadius() + getHalfHeight();
halfExtents += btVector3(getMargin(),getMargin(),getMargin());
btMatrix3x3 abs_b = t.getBasis().absolute();
btPoint3 center = t.getOrigin();
btVector3 center = t.getOrigin();
btVector3 extent = btVector3(abs_b[0].dot(halfExtents),abs_b[1].dot(halfExtents),abs_b[2].dot(halfExtents));
aabbMin = center - extent;

@ -16,6 +16,9 @@ subject to the following restrictions:
#include "BulletCollision/CollisionShapes/btCollisionShape.h"
btScalar gContactThresholdFactor=btScalar(0.02);
/*
Make sure this dummy function never changes so that it
can be used by probes that are checking whether the
@ -42,8 +45,13 @@ void btCollisionShape::getBoundingSphere(btVector3& center,btScalar& radius) con
center = (aabbMin+aabbMax)*btScalar(0.5);
}
btScalar btCollisionShape::getContactBreakingThreshold() const
{
return getAngularMotionDisc() * gContactThresholdFactor;
}
btScalar btCollisionShape::getAngularMotionDisc() const
{
///@todo cache this value, to improve performance
btVector3 center;
btScalar disc;
getBoundingSphere(center,disc);
@ -65,7 +73,7 @@ void btCollisionShape::calculateTemporalAabb(const btTransform& curTrans,const b
// add linear motion
btVector3 linMotion = linvel*timeStep;
//todo: simd would have a vector max/min operation, instead of per-element access
///@todo: simd would have a vector max/min operation, instead of per-element access
if (linMotion.x() > btScalar(0.))
temporalAabbMaxx += linMotion.x();
else

@ -19,20 +19,21 @@ subject to the following restrictions:
#include "LinearMath/btTransform.h"
#include "LinearMath/btVector3.h"
#include "LinearMath/btMatrix3x3.h"
#include "LinearMath/btPoint3.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h" //for the shape types
///The btCollisionShape class provides an interface for collision shapes that can be shared among btCollisionObjects.
class btCollisionShape
{
protected:
int m_shapeType;
void* m_userPointer;
public:
btCollisionShape() : m_userPointer(0)
btCollisionShape() : m_shapeType (INVALID_SHAPE_PROXYTYPE), m_userPointer(0)
{
}
virtual ~btCollisionShape()
{
}
@ -45,6 +46,8 @@ public:
///getAngularMotionDisc returns the maximus radius needed for Conservative Advancement to handle time-of-impact with rotations.
virtual btScalar getAngularMotionDisc() const;
virtual btScalar getContactBreakingThreshold() const;
///calculateTemporalAabb calculates the enclosing aabb for the moving object over interval [0..timeStep)
///result is conservative
@ -76,7 +79,7 @@ public:
return btBroadphaseProxy::isInfinite(getShapeType());
}
virtual int getShapeType() const=0;
virtual void setLocalScaling(const btVector3& scaling) =0;
virtual const btVector3& getLocalScaling() const =0;
virtual void calculateLocalInertia(btScalar mass,btVector3& inertia) const = 0;
@ -87,13 +90,13 @@ public:
#endif //__SPU__
int getShapeType() const { return m_shapeType; }
virtual void setMargin(btScalar margin) = 0;
virtual btScalar getMargin() const = 0;
///optional user data pointer
void setUserPointer(void* userPtr)
void setUserPointer(void* userPtr)
{
m_userPointer = userPtr;
}

@ -17,16 +17,22 @@ subject to the following restrictions:
#include "btCollisionShape.h"
#include "BulletCollision/BroadphaseCollision/btDbvt.h"
btCompoundShape::btCompoundShape()
:m_localAabbMin(btScalar(1e30),btScalar(1e30),btScalar(1e30)),
btCompoundShape::btCompoundShape(bool enableDynamicAabbTree)
: m_localAabbMin(btScalar(1e30),btScalar(1e30),btScalar(1e30)),
m_localAabbMax(btScalar(-1e30),btScalar(-1e30),btScalar(-1e30)),
m_collisionMargin(btScalar(0.)),
m_localScaling(btScalar(1.),btScalar(1.),btScalar(1.)),
m_dynamicAabbTree(0)
m_dynamicAabbTree(0),
m_updateRevision(1)
{
void* mem = btAlignedAlloc(sizeof(btDbvt),16);
m_dynamicAabbTree = new(mem) btDbvt();
btAssert(mem==m_dynamicAabbTree);
m_shapeType = COMPOUND_SHAPE_PROXYTYPE;
if (enableDynamicAabbTree)
{
void* mem = btAlignedAlloc(sizeof(btDbvt),16);
m_dynamicAabbTree = new(mem) btDbvt();
btAssert(mem==m_dynamicAabbTree);
}
}
@ -41,6 +47,7 @@ btCompoundShape::~btCompoundShape()
void btCompoundShape::addChildShape(const btTransform& localTransform,btCollisionShape* shape)
{
m_updateRevision++;
//m_childTransforms.push_back(localTransform);
//m_childShapes.push_back(shape);
btCompoundShapeChild child;
@ -49,6 +56,7 @@ void btCompoundShape::addChildShape(const btTransform& localTransform,btCollisio
child.m_childShapeType = shape->getShapeType();
child.m_childMargin = shape->getMargin();
//extend the local aabbMin/aabbMax
btVector3 localAabbMin,localAabbMax;
shape->getAabb(localTransform,localAabbMin,localAabbMax);
@ -72,10 +80,29 @@ void btCompoundShape::addChildShape(const btTransform& localTransform,btCollisio
}
m_children.push_back(child);
}
void btCompoundShape::updateChildTransform(int childIndex, const btTransform& newChildTransform)
{
m_children[childIndex].m_transform = newChildTransform;
if (m_dynamicAabbTree)
{
///update the dynamic aabb tree
btVector3 localAabbMin,localAabbMax;
m_children[childIndex].m_childShape->getAabb(newChildTransform,localAabbMin,localAabbMax);
ATTRIBUTE_ALIGNED16(btDbvtVolume) bounds=btDbvtVolume::FromMM(localAabbMin,localAabbMax);
int index = m_children.size()-1;
m_dynamicAabbTree->update(m_children[childIndex].m_node,bounds);
}
recalculateLocalAabb();
}
void btCompoundShape::removeChildShapeByIndex(int childShapeIndex)
{
m_updateRevision++;
btAssert(childShapeIndex >=0 && childShapeIndex < m_children.size());
if (m_dynamicAabbTree)
{
@ -86,8 +113,11 @@ void btCompoundShape::removeChildShapeByIndex(int childShapeIndex)
}
void btCompoundShape::removeChildShape(btCollisionShape* shape)
{
m_updateRevision++;
// Find the children containing the shape specified, and remove those children.
//note: there might be multiple children using the same shape!
for(int i = m_children.size()-1; i >= 0 ; i--)
@ -97,6 +127,8 @@ void btCompoundShape::removeChildShape(btCollisionShape* shape)
m_children.swap(i,m_children.size()-1);
m_children.pop_back();
//remove it from the m_dynamicAabbTree too
//@todo: this leads to problems due to caching in the btCompoundCollisionAlgorithm
//so effectively, removeChildShape is broken at the moment
//m_dynamicAabbTree->remove(m_aabbProxies[i]);
//m_aabbProxies.swap(i,m_children.size()-1);
//m_aabbProxies.pop_back();
@ -112,6 +144,7 @@ void btCompoundShape::recalculateLocalAabb()
{
// Recalculate the local aabb
// Brute force, it iterates over all the shapes left.
m_localAabbMin = btVector3(btScalar(1e30),btScalar(1e30),btScalar(1e30));
m_localAabbMax = btVector3(btScalar(-1e30),btScalar(-1e30),btScalar(-1e30));
@ -134,19 +167,27 @@ void btCompoundShape::recalculateLocalAabb()
void btCompoundShape::getAabb(const btTransform& trans,btVector3& aabbMin,btVector3& aabbMax) const
{
btVector3 localHalfExtents = btScalar(0.5)*(m_localAabbMax-m_localAabbMin);
localHalfExtents += btVector3(getMargin(),getMargin(),getMargin());
btVector3 localCenter = btScalar(0.5)*(m_localAabbMax+m_localAabbMin);
//avoid an illegal AABB when there are no children
if (!m_children.size())
{
localHalfExtents.setValue(0,0,0);
localCenter.setValue(0,0,0);
}
localHalfExtents += btVector3(getMargin(),getMargin(),getMargin());
btMatrix3x3 abs_b = trans.getBasis().absolute();
btPoint3 center = trans(localCenter);
btVector3 center = trans(localCenter);
btVector3 extent = btVector3(abs_b[0].dot(localHalfExtents),
abs_b[1].dot(localHalfExtents),
abs_b[2].dot(localHalfExtents));
aabbMin = center-extent;
aabbMax = center+extent;
}
void btCompoundShape::calculateLocalInertia(btScalar mass,btVector3& inertia) const
@ -178,7 +219,9 @@ void btCompoundShape::calculatePrincipalAxisTransform(btScalar* masses, btTransf
btScalar totalMass = 0;
btVector3 center(0, 0, 0);
for (int k = 0; k < n; k++)
int k;
for (k = 0; k < n; k++)
{
center += m_children[k].m_transform.getOrigin() * masses[k];
totalMass += masses[k];
@ -187,7 +230,7 @@ void btCompoundShape::calculatePrincipalAxisTransform(btScalar* masses, btTransf
principal.setOrigin(center);
btMatrix3x3 tensor(0, 0, 0, 0, 0, 0, 0, 0, 0);
for (int k = 0; k < n; k++)
for ( k = 0; k < n; k++)
{
btVector3 i;
m_children[k].m_childShape->calculateLocalInertia(masses[k], i);

@ -46,23 +46,26 @@ SIMD_FORCE_INLINE bool operator==(const btCompoundShapeChild& c1, const btCompou
c1.m_childMargin == c2.m_childMargin );
}
/// btCompoundShape allows to store multiple other btCollisionShapes
/// The btCompoundShape allows to store multiple other btCollisionShapes
/// This allows for moving concave collision objects. This is more general then the static concave btBvhTriangleMeshShape.
/// It has an (optional) dynamic aabb tree to accelerate early rejection tests.
/// @todo: This aabb tree can also be use to speed up ray tests on btCompoundShape, see http://code.google.com/p/bullet/issues/detail?id=25
/// Currently, removal of child shapes is only supported when disabling the aabb tree (pass 'false' in the constructor of btCompoundShape)
ATTRIBUTE_ALIGNED16(class) btCompoundShape : public btCollisionShape
{
//btAlignedObjectArray<btTransform> m_childTransforms;
//btAlignedObjectArray<btCollisionShape*> m_childShapes;
btAlignedObjectArray<btCompoundShapeChild> m_children;
btVector3 m_localAabbMin;
btVector3 m_localAabbMax;
//btOptimizedBvh* m_aabbTree;
btDbvt* m_dynamicAabbTree;
///increment m_updateRevision when adding/removing/replacing child shapes, so that some caches can be updated
int m_updateRevision;
public:
BT_DECLARE_ALIGNED_ALLOCATOR();
btCompoundShape();
btCompoundShape(bool enableDynamicAabbTree = true);
virtual ~btCompoundShape();
@ -88,15 +91,18 @@ public:
return m_children[index].m_childShape;
}
btTransform getChildTransform(int index)
btTransform& getChildTransform(int index)
{
return m_children[index].m_transform;
}
const btTransform getChildTransform(int index) const
const btTransform& getChildTransform(int index) const
{
return m_children[index].m_transform;
}
///set a new transform for a child, and update internal data structures (local aabb and dynamic tree)
void updateChildTransform(int childIndex, const btTransform& newChildTransform);
btCompoundShapeChild* getChildList()
{
@ -121,8 +127,6 @@ public:
virtual void calculateLocalInertia(btScalar mass,btVector3& inertia) const;
virtual int getShapeType() const { return COMPOUND_SHAPE_PROXYTYPE;}
virtual void setMargin(btScalar margin)
{
m_collisionMargin = margin;
@ -151,6 +155,10 @@ public:
///of the collision object by the principal transform.
void calculatePrincipalAxisTransform(btScalar* masses, btTransform& principal, btVector3& inertia) const;
int getUpdateRevision() const
{
return m_updateRevision;
}
private:
btScalar m_collisionMargin;

@ -20,6 +20,16 @@ subject to the following restrictions:
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h" // for the types
#include "btTriangleCallback.h"
/// PHY_ScalarType enumerates possible scalar types.
/// See the btStridingMeshInterface or btHeightfieldTerrainShape for its use
typedef enum PHY_ScalarType {
PHY_FLOAT,
PHY_DOUBLE,
PHY_INTEGER,
PHY_SHORT,
PHY_FIXEDPOINT88,
PHY_UCHAR
} PHY_ScalarType;
///The btConcaveShape class provides an interface for non-moving (static) concave shapes.
///It has been implemented by the btStaticPlaneShape, btBvhTriangleMeshShape and btHeightfieldTerrainShape.

@ -14,14 +14,14 @@ subject to the following restrictions:
*/
#include "btConeShape.h"
#include "LinearMath/btPoint3.h"
btConeShape::btConeShape (btScalar radius,btScalar height):
btConeShape::btConeShape (btScalar radius,btScalar height): btConvexInternalShape (),
m_radius (radius),
m_height(height)
{
m_shapeType = CONE_SHAPE_PROXYTYPE;
setConeUpIndex(1);
btVector3 halfExtents;
m_sinAngle = (m_radius / btSqrt(m_radius * m_radius + m_height * m_height));
@ -60,7 +60,7 @@ void btConeShape::setConeUpIndex(int upIndex)
m_coneIndices[2] = 1;
break;
default:
assert(0);
btAssert(0);
};
}

@ -69,9 +69,6 @@ public:
}
virtual int getShapeType() const { return CONE_SHAPE_PROXYTYPE; }
virtual const char* getName()const
{
return "Cone";

@ -19,16 +19,17 @@ subject to the following restrictions:
btConvexHullShape ::btConvexHullShape (const btScalar* points,int numPoints,int stride)
btConvexHullShape ::btConvexHullShape (const btScalar* points,int numPoints,int stride) : btPolyhedralConvexShape ()
{
m_points.resize(numPoints);
m_shapeType = CONVEX_HULL_SHAPE_PROXYTYPE;
m_unscaledPoints.resize(numPoints);
unsigned char* pointsBaseAddress = (unsigned char*)points;
for (int i=0;i<numPoints;i++)
{
btPoint3* point = (btPoint3*)(pointsBaseAddress + i*stride);
m_points[i] = point[0];
btVector3* point = (btVector3*)(pointsBaseAddress + i*stride);
m_unscaledPoints[i] = point[0];
}
recalcLocalAabb();
@ -43,9 +44,9 @@ void btConvexHullShape::setLocalScaling(const btVector3& scaling)
recalcLocalAabb();
}
void btConvexHullShape::addPoint(const btPoint3& point)
void btConvexHullShape::addPoint(const btVector3& point)
{
m_points.push_back(point);
m_unscaledPoints.push_back(point);
recalcLocalAabb();
}
@ -67,9 +68,9 @@ btVector3 btConvexHullShape::localGetSupportingVertexWithoutMargin(const btVecto
}
for (int i=0;i<m_points.size();i++)
for (int i=0;i<m_unscaledPoints.size();i++)
{
btPoint3 vtx = m_points[i] * m_localScaling;
btVector3 vtx = m_unscaledPoints[i] * m_localScaling;
newDot = vec.dot(vtx);
if (newDot > maxDot)
@ -91,9 +92,9 @@ void btConvexHullShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const
supportVerticesOut[i][3] = btScalar(-1e30);
}
}
for (int i=0;i<m_points.size();i++)
for (int i=0;i<m_unscaledPoints.size();i++)
{
btPoint3 vtx = m_points[i] * m_localScaling;
btVector3 vtx = getScaledPoint(i);
for (int j=0;j<numVectors;j++)
{
@ -144,26 +145,26 @@ btVector3 btConvexHullShape::localGetSupportingVertex(const btVector3& vec)const
//Please note that you can debug-draw btConvexHullShape with the Raytracer Demo
int btConvexHullShape::getNumVertices() const
{
return m_points.size();
return m_unscaledPoints.size();
}
int btConvexHullShape::getNumEdges() const
{
return m_points.size();
return m_unscaledPoints.size();
}
void btConvexHullShape::getEdge(int i,btPoint3& pa,btPoint3& pb) const
void btConvexHullShape::getEdge(int i,btVector3& pa,btVector3& pb) const
{
int index0 = i%m_points.size();
int index1 = (i+1)%m_points.size();
pa = m_points[index0]*m_localScaling;
pb = m_points[index1]*m_localScaling;
int index0 = i%m_unscaledPoints.size();
int index1 = (i+1)%m_unscaledPoints.size();
pa = getScaledPoint(index0);
pb = getScaledPoint(index1);
}
void btConvexHullShape::getVertex(int i,btPoint3& vtx) const
void btConvexHullShape::getVertex(int i,btVector3& vtx) const
{
vtx = m_points[i]*m_localScaling;
vtx = getScaledPoint(i);
}
int btConvexHullShape::getNumPlanes() const
@ -171,16 +172,16 @@ int btConvexHullShape::getNumPlanes() const
return 0;
}
void btConvexHullShape::getPlane(btVector3& ,btPoint3& ,int ) const
void btConvexHullShape::getPlane(btVector3& ,btVector3& ,int ) const
{
btAssert(0);
}
//not yet
bool btConvexHullShape::isInside(const btPoint3& ,btScalar ) const
bool btConvexHullShape::isInside(const btVector3& ,btScalar ) const
{
assert(0);
btAssert(0);
return false;
}

@ -24,7 +24,7 @@ subject to the following restrictions:
///Bullet provides a general and fast collision detector for convex shapes based on GJK and EPA using localGetSupportingVertex.
ATTRIBUTE_ALIGNED16(class) btConvexHullShape : public btPolyhedralConvexShape
{
btAlignedObjectArray<btPoint3> m_points;
btAlignedObjectArray<btVector3> m_unscaledPoints;
public:
BT_DECLARE_ALIGNED_ALLOCATOR();
@ -33,23 +33,38 @@ public:
///this constructor optionally takes in a pointer to points. Each point is assumed to be 3 consecutive btScalar (x,y,z), the striding defines the number of bytes between each point, in memory.
///It is easier to not pass any points in the constructor, and just add one point at a time, using addPoint.
///btConvexHullShape make an internal copy of the points.
btConvexHullShape(const btScalar* points=0,int numPoints=0, int stride=sizeof(btPoint3));
btConvexHullShape(const btScalar* points=0,int numPoints=0, int stride=sizeof(btVector3));
void addPoint(const btPoint3& point);
void addPoint(const btVector3& point);
btPoint3* getPoints()
btVector3* getUnscaledPoints()
{
return &m_points[0];
return &m_unscaledPoints[0];
}
const btPoint3* getPoints() const
const btVector3* getUnscaledPoints() const
{
return &m_points[0];
return &m_unscaledPoints[0];
}
int getNumPoints() const
///getPoints is obsolete, please use getUnscaledPoints
const btVector3* getPoints() const
{
return m_points.size();
return getUnscaledPoints();
}
SIMD_FORCE_INLINE btVector3 getScaledPoint(int i) const
{
return m_unscaledPoints[i] * m_localScaling;
}
SIMD_FORCE_INLINE int getNumPoints() const
{
return m_unscaledPoints.size();
}
virtual btVector3 localGetSupportingVertex(const btVector3& vec)const;
@ -57,7 +72,6 @@ public:
virtual void batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
virtual int getShapeType()const { return CONVEX_HULL_SHAPE_PROXYTYPE; }
//debugging
virtual const char* getName()const {return "Convex";}
@ -65,11 +79,11 @@ public:
virtual int getNumVertices() const;
virtual int getNumEdges() const;
virtual void getEdge(int i,btPoint3& pa,btPoint3& pb) const;
virtual void getVertex(int i,btPoint3& vtx) const;
virtual void getEdge(int i,btVector3& pa,btVector3& pb) const;
virtual void getVertex(int i,btVector3& vtx) const;
virtual int getNumPlanes() const;
virtual void getPlane(btVector3& planeNormal,btPoint3& planeSupport,int i ) const;
virtual bool isInside(const btPoint3& pt,btScalar tolerance) const;
virtual void getPlane(btVector3& planeNormal,btVector3& planeSupport,int i ) const;
virtual bool isInside(const btVector3& pt,btScalar tolerance) const;
///in case we receive negative scaling
virtual void setLocalScaling(const btVector3& scaling);

@ -17,6 +17,7 @@ subject to the following restrictions:
#include "btConvexInternalShape.h"
btConvexInternalShape::btConvexInternalShape()
: m_localScaling(btScalar(1.),btScalar(1.),btScalar(1.)),
m_collisionMargin(CONVEX_DISTANCE_MARGIN)
@ -48,7 +49,8 @@ void btConvexInternalShape::getAabbSlow(const btTransform& trans,btVector3&minAa
tmp = trans(localGetSupportingVertex(vec*trans.getBasis()));
minAabb[i] = tmp[i]-margin;
}
};
}
btVector3 btConvexInternalShape::localGetSupportingVertex(const btVector3& vec)const
@ -70,6 +72,7 @@ btVector3 btConvexInternalShape::localGetSupportingVertex(const btVector3& vec)c
return supVertex;
#else
btAssert(0);
return btVector3(0,0,0);
#endif //__SPU__

@ -19,23 +19,18 @@ class btConvexInternalShape : public btConvexShape
btScalar m_padding;
btConvexInternalShape();
public:
btConvexInternalShape();
virtual ~btConvexInternalShape()
{
}
virtual btVector3 localGetSupportingVertex(const btVector3& vec)const;
#ifndef __SPU__
virtual btVector3 localGetSupportingVertexWithoutMargin(const btVector3& vec) const= 0;
//notice that the vectors should be unit length
virtual void batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const= 0;
#endif //#ifndef __SPU__
const btVector3& getImplicitShapeDimensions() const
{

@ -0,0 +1,156 @@
/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "btConvexPointCloudShape.h"
#include "BulletCollision/CollisionShapes/btCollisionMargin.h"
#include "LinearMath/btQuaternion.h"
void btConvexPointCloudShape::setLocalScaling(const btVector3& scaling)
{
m_localScaling = scaling;
recalcLocalAabb();
}
#ifndef __SPU__
btVector3 btConvexPointCloudShape::localGetSupportingVertexWithoutMargin(const btVector3& vec0)const
{
btVector3 supVec(btScalar(0.),btScalar(0.),btScalar(0.));
btScalar newDot,maxDot = btScalar(-1e30);
btVector3 vec = vec0;
btScalar lenSqr = vec.length2();
if (lenSqr < btScalar(0.0001))
{
vec.setValue(1,0,0);
} else
{
btScalar rlen = btScalar(1.) / btSqrt(lenSqr );
vec *= rlen;
}
for (int i=0;i<m_numPoints;i++)
{
btVector3 vtx = getScaledPoint(i);
newDot = vec.dot(vtx);
if (newDot > maxDot)
{
maxDot = newDot;
supVec = vtx;
}
}
return supVec;
}
void btConvexPointCloudShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const
{
btScalar newDot;
//use 'w' component of supportVerticesOut?
{
for (int i=0;i<numVectors;i++)
{
supportVerticesOut[i][3] = btScalar(-1e30);
}
}
for (int i=0;i<m_numPoints;i++)
{
btVector3 vtx = getScaledPoint(i);
for (int j=0;j<numVectors;j++)
{
const btVector3& vec = vectors[j];
newDot = vec.dot(vtx);
if (newDot > supportVerticesOut[j][3])
{
//WARNING: don't swap next lines, the w component would get overwritten!
supportVerticesOut[j] = vtx;
supportVerticesOut[j][3] = newDot;
}
}
}
}
btVector3 btConvexPointCloudShape::localGetSupportingVertex(const btVector3& vec)const
{
btVector3 supVertex = localGetSupportingVertexWithoutMargin(vec);
if ( getMargin()!=btScalar(0.) )
{
btVector3 vecnorm = vec;
if (vecnorm .length2() < (SIMD_EPSILON*SIMD_EPSILON))
{
vecnorm.setValue(btScalar(-1.),btScalar(-1.),btScalar(-1.));
}
vecnorm.normalize();
supVertex+= getMargin() * vecnorm;
}
return supVertex;
}
#endif
//currently just for debugging (drawing), perhaps future support for algebraic continuous collision detection
//Please note that you can debug-draw btConvexHullShape with the Raytracer Demo
int btConvexPointCloudShape::getNumVertices() const
{
return m_numPoints;
}
int btConvexPointCloudShape::getNumEdges() const
{
return 0;
}
void btConvexPointCloudShape::getEdge(int i,btVector3& pa,btVector3& pb) const
{
btAssert (0);
}
void btConvexPointCloudShape::getVertex(int i,btVector3& vtx) const
{
vtx = m_unscaledPoints[i]*m_localScaling;
}
int btConvexPointCloudShape::getNumPlanes() const
{
return 0;
}
void btConvexPointCloudShape::getPlane(btVector3& ,btVector3& ,int ) const
{
btAssert(0);
}
//not yet
bool btConvexPointCloudShape::isInside(const btVector3& ,btScalar ) const
{
btAssert(0);
return false;
}

@ -0,0 +1,96 @@
/*
Bullet Continuous Collision Detection and Physics Library
Copyright (c) 2003-2006 Erwin Coumans http://continuousphysics.com/Bullet/
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it freely,
subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#ifndef BT_CONVEX_POINT_CLOUD_SHAPE_H
#define BT_CONVEX_POINT_CLOUD_SHAPE_H
#include "btPolyhedralConvexShape.h"
#include "BulletCollision/BroadphaseCollision/btBroadphaseProxy.h" // for the types
#include "LinearMath/btAlignedObjectArray.h"
///The btConvexPointCloudShape implements an implicit convex hull of an array of vertices.
ATTRIBUTE_ALIGNED16(class) btConvexPointCloudShape : public btPolyhedralConvexShape
{
btVector3* m_unscaledPoints;
int m_numPoints;
public:
BT_DECLARE_ALIGNED_ALLOCATOR();
btConvexPointCloudShape(btVector3* points,int numPoints, const btVector3& localScaling,bool computeAabb = true)
{
m_localScaling = localScaling;
m_shapeType = CONVEX_POINT_CLOUD_SHAPE_PROXYTYPE;
m_unscaledPoints = points;
m_numPoints = numPoints;
if (computeAabb)
recalcLocalAabb();
}
void setPoints (btVector3* points, int numPoints, bool computeAabb = true)
{
m_unscaledPoints = points;
m_numPoints = numPoints;
if (computeAabb)
recalcLocalAabb();
}
SIMD_FORCE_INLINE btVector3* getUnscaledPoints()
{
return m_unscaledPoints;
}
SIMD_FORCE_INLINE const btVector3* getUnscaledPoints() const
{
return m_unscaledPoints;
}
SIMD_FORCE_INLINE int getNumPoints() const
{
return m_numPoints;
}
SIMD_FORCE_INLINE btVector3 getScaledPoint( int index) const
{
return m_unscaledPoints[index] * m_localScaling;
}
#ifndef __SPU__
virtual btVector3 localGetSupportingVertex(const btVector3& vec)const;
virtual btVector3 localGetSupportingVertexWithoutMargin(const btVector3& vec)const;
virtual void batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
#endif
//debugging
virtual const char* getName()const {return "ConvexPointCloud";}
virtual int getNumVertices() const;
virtual int getNumEdges() const;
virtual void getEdge(int i,btVector3& pa,btVector3& pb) const;
virtual void getVertex(int i,btVector3& vtx) const;
virtual int getNumPlanes() const;
virtual void getPlane(btVector3& planeNormal,btVector3& planeSupport,int i ) const;
virtual bool isInside(const btVector3& pt,btScalar tolerance) const;
///in case we receive negative scaling
virtual void setLocalScaling(const btVector3& scaling);
};
#endif //BT_CONVEX_POINT_CLOUD_SHAPE_H

@ -14,5 +14,366 @@ subject to the following restrictions:
*/
#include "btConvexShape.h"
#include "btTriangleShape.h"
#include "btSphereShape.h"
#include "btCylinderShape.h"
#include "btCapsuleShape.h"
#include "btConvexHullShape.h"
#include "btConvexPointCloudShape.h"
btConvexShape::btConvexShape ()
{
}
btConvexShape::~btConvexShape()
{
}
static btVector3 convexHullSupport (const btVector3& localDir, const btVector3* points, int numPoints, const btVector3& localScaling)
{
btVector3 supVec(btScalar(0.),btScalar(0.),btScalar(0.));
btScalar newDot,maxDot = btScalar(-1e30);
btVector3 vec0(localDir.getX(),localDir.getY(),localDir.getZ());
btVector3 vec = vec0;
btScalar lenSqr = vec.length2();
if (lenSqr < btScalar(0.0001))
{
vec.setValue(1,0,0);
} else {
btScalar rlen = btScalar(1.) / btSqrt(lenSqr );
vec *= rlen;
}
for (int i=0;i<numPoints;i++)
{
btVector3 vtx = points[i] * localScaling;
newDot = vec.dot(vtx);
if (newDot > maxDot)
{
maxDot = newDot;
supVec = vtx;
}
}
return btVector3(supVec.getX(),supVec.getY(),supVec.getZ());
}
btVector3 btConvexShape::localGetSupportVertexWithoutMarginNonVirtual (const btVector3& localDir) const
{
switch (m_shapeType)
{
case SPHERE_SHAPE_PROXYTYPE:
{
return btVector3(0,0,0);
}
case BOX_SHAPE_PROXYTYPE:
{
btBoxShape* convexShape = (btBoxShape*)this;
const btVector3& halfExtents = convexShape->getImplicitShapeDimensions();
return btVector3(btFsels(localDir.x(), halfExtents.x(), -halfExtents.x()),
btFsels(localDir.y(), halfExtents.y(), -halfExtents.y()),
btFsels(localDir.z(), halfExtents.z(), -halfExtents.z()));
}
case TRIANGLE_SHAPE_PROXYTYPE:
{
btTriangleShape* triangleShape = (btTriangleShape*)this;
btVector3 dir(localDir.getX(),localDir.getY(),localDir.getZ());
btVector3* vertices = &triangleShape->m_vertices1[0];
btVector3 dots(dir.dot(vertices[0]), dir.dot(vertices[1]), dir.dot(vertices[2]));
btVector3 sup = vertices[dots.maxAxis()];
return btVector3(sup.getX(),sup.getY(),sup.getZ());
}
case CYLINDER_SHAPE_PROXYTYPE:
{
btCylinderShape* cylShape = (btCylinderShape*)this;
//mapping of halfextents/dimension onto radius/height depends on how cylinder local orientation is (upAxis)
btVector3 halfExtents = cylShape->getImplicitShapeDimensions();
btVector3 v(localDir.getX(),localDir.getY(),localDir.getZ());
int cylinderUpAxis = cylShape->getUpAxis();
int XX(1),YY(0),ZZ(2);
switch (cylinderUpAxis)
{
case 0:
{
XX = 1;
YY = 0;
ZZ = 2;
}
break;
case 1:
{
XX = 0;
YY = 1;
ZZ = 2;
}
break;
case 2:
{
XX = 0;
YY = 2;
ZZ = 1;
}
break;
default:
btAssert(0);
break;
};
btScalar radius = halfExtents[XX];
btScalar halfHeight = halfExtents[cylinderUpAxis];
btVector3 tmp;
btScalar d ;
btScalar s = btSqrt(v[XX] * v[XX] + v[ZZ] * v[ZZ]);
if (s != btScalar(0.0))
{
d = radius / s;
tmp[XX] = v[XX] * d;
tmp[YY] = v[YY] < 0.0 ? -halfHeight : halfHeight;
tmp[ZZ] = v[ZZ] * d;
return btVector3(tmp.getX(),tmp.getY(),tmp.getZ());
} else {
tmp[XX] = radius;
tmp[YY] = v[YY] < 0.0 ? -halfHeight : halfHeight;
tmp[ZZ] = btScalar(0.0);
return btVector3(tmp.getX(),tmp.getY(),tmp.getZ());
}
}
case CAPSULE_SHAPE_PROXYTYPE:
{
btVector3 vec0(localDir.getX(),localDir.getY(),localDir.getZ());
btCapsuleShape* capsuleShape = (btCapsuleShape*)this;
btScalar halfHeight = capsuleShape->getHalfHeight();
int capsuleUpAxis = capsuleShape->getUpAxis();
btScalar radius = capsuleShape->getRadius();
btVector3 supVec(0,0,0);
btScalar maxDot(btScalar(-1e30));
btVector3 vec = vec0;
btScalar lenSqr = vec.length2();
if (lenSqr < btScalar(0.0001))
{
vec.setValue(1,0,0);
} else
{
btScalar rlen = btScalar(1.) / btSqrt(lenSqr );
vec *= rlen;
}
btVector3 vtx;
btScalar newDot;
{
btVector3 pos(0,0,0);
pos[capsuleUpAxis] = halfHeight;
//vtx = pos +vec*(radius);
vtx = pos +vec*capsuleShape->getLocalScalingNV()*(radius) - vec * capsuleShape->getMarginNV();
newDot = vec.dot(vtx);
if (newDot > maxDot)
{
maxDot = newDot;
supVec = vtx;
}
}
{
btVector3 pos(0,0,0);
pos[capsuleUpAxis] = -halfHeight;
//vtx = pos +vec*(radius);
vtx = pos +vec*capsuleShape->getLocalScalingNV()*(radius) - vec * capsuleShape->getMarginNV();
newDot = vec.dot(vtx);
if (newDot > maxDot)
{
maxDot = newDot;
supVec = vtx;
}
}
return btVector3(supVec.getX(),supVec.getY(),supVec.getZ());
}
case CONVEX_POINT_CLOUD_SHAPE_PROXYTYPE:
{
btConvexPointCloudShape* convexPointCloudShape = (btConvexPointCloudShape*)this;
btVector3* points = convexPointCloudShape->getUnscaledPoints ();
int numPoints = convexPointCloudShape->getNumPoints ();
return convexHullSupport (localDir, points, numPoints,convexPointCloudShape->getLocalScalingNV());
}
case CONVEX_HULL_SHAPE_PROXYTYPE:
{
btConvexHullShape* convexHullShape = (btConvexHullShape*)this;
btVector3* points = convexHullShape->getUnscaledPoints();
int numPoints = convexHullShape->getNumPoints ();
return convexHullSupport (localDir, points, numPoints,convexHullShape->getLocalScalingNV());
}
default:
#ifndef __SPU__
return this->localGetSupportingVertexWithoutMargin (localDir);
#else
btAssert (0);
#endif
}
// should never reach here
btAssert (0);
return btVector3 (btScalar(0.0f), btScalar(0.0f), btScalar(0.0f));
}
btVector3 btConvexShape::localGetSupportVertexNonVirtual (const btVector3& localDir) const
{
btVector3 localDirNorm = localDir;
if (localDirNorm .length2() < (SIMD_EPSILON*SIMD_EPSILON))
{
localDirNorm.setValue(btScalar(-1.),btScalar(-1.),btScalar(-1.));
}
localDirNorm.normalize ();
return localGetSupportVertexWithoutMarginNonVirtual(localDirNorm)+ getMarginNonVirtual() * localDirNorm;
}
/* TODO: This should be bumped up to btCollisionShape () */
btScalar btConvexShape::getMarginNonVirtual () const
{
switch (m_shapeType)
{
case SPHERE_SHAPE_PROXYTYPE:
{
btSphereShape* sphereShape = (btSphereShape*)this;
return sphereShape->getRadius ();
}
case BOX_SHAPE_PROXYTYPE:
{
btBoxShape* convexShape = (btBoxShape*)this;
return convexShape->getMarginNV ();
}
case TRIANGLE_SHAPE_PROXYTYPE:
{
btTriangleShape* triangleShape = (btTriangleShape*)this;
return triangleShape->getMarginNV ();
}
case CYLINDER_SHAPE_PROXYTYPE:
{
btCylinderShape* cylShape = (btCylinderShape*)this;
return cylShape->getMarginNV();
}
case CAPSULE_SHAPE_PROXYTYPE:
{
btCapsuleShape* capsuleShape = (btCapsuleShape*)this;
return capsuleShape->getMarginNV();
}
case CONVEX_POINT_CLOUD_SHAPE_PROXYTYPE:
/* fall through */
case CONVEX_HULL_SHAPE_PROXYTYPE:
{
btPolyhedralConvexShape* convexHullShape = (btPolyhedralConvexShape*)this;
return convexHullShape->getMarginNV();
}
default:
#ifndef __SPU__
return this->getMargin ();
#else
btAssert (0);
#endif
}
// should never reach here
btAssert (0);
return btScalar(0.0f);
}
void btConvexShape::getAabbNonVirtual (const btTransform& t, btVector3& aabbMin, btVector3& aabbMax) const
{
switch (m_shapeType)
{
case SPHERE_SHAPE_PROXYTYPE:
{
btSphereShape* sphereShape = (btSphereShape*)this;
btScalar radius = sphereShape->getImplicitShapeDimensions().getX();// * convexShape->getLocalScaling().getX();
btScalar margin = radius + sphereShape->getMarginNonVirtual();
const btVector3& center = t.getOrigin();
btVector3 extent(margin,margin,margin);
aabbMin = center - extent;
aabbMax = center + extent;
}
break;
case CYLINDER_SHAPE_PROXYTYPE:
/* fall through */
case BOX_SHAPE_PROXYTYPE:
{
btBoxShape* convexShape = (btBoxShape*)this;
btScalar margin=convexShape->getMarginNonVirtual();
btVector3 halfExtents = convexShape->getImplicitShapeDimensions();
halfExtents += btVector3(margin,margin,margin);
btMatrix3x3 abs_b = t.getBasis().absolute();
btVector3 center = t.getOrigin();
btVector3 extent = btVector3(abs_b[0].dot(halfExtents),abs_b[1].dot(halfExtents),abs_b[2].dot(halfExtents));
aabbMin = center - extent;
aabbMax = center + extent;
break;
}
case TRIANGLE_SHAPE_PROXYTYPE:
{
btTriangleShape* triangleShape = (btTriangleShape*)this;
btScalar margin = triangleShape->getMarginNonVirtual();
for (int i=0;i<3;i++)
{
btVector3 vec(btScalar(0.),btScalar(0.),btScalar(0.));
vec[i] = btScalar(1.);
btVector3 sv = localGetSupportVertexWithoutMarginNonVirtual(vec*t.getBasis());
btVector3 tmp = t(sv);
aabbMax[i] = tmp[i]+margin;
vec[i] = btScalar(-1.);
tmp = t(localGetSupportVertexWithoutMarginNonVirtual(vec*t.getBasis()));
aabbMin[i] = tmp[i]-margin;
}
}
break;
case CAPSULE_SHAPE_PROXYTYPE:
{
btCapsuleShape* capsuleShape = (btCapsuleShape*)this;
btVector3 halfExtents(capsuleShape->getRadius(),capsuleShape->getRadius(),capsuleShape->getRadius());
int m_upAxis = capsuleShape->getUpAxis();
halfExtents[m_upAxis] = capsuleShape->getRadius() + capsuleShape->getHalfHeight();
halfExtents += btVector3(capsuleShape->getMarginNonVirtual(),capsuleShape->getMarginNonVirtual(),capsuleShape->getMarginNonVirtual());
btMatrix3x3 abs_b = t.getBasis().absolute();
btVector3 center = t.getOrigin();
btVector3 extent = btVector3(abs_b[0].dot(halfExtents),abs_b[1].dot(halfExtents),abs_b[2].dot(halfExtents));
aabbMin = center - extent;
aabbMax = center + extent;
}
break;
case CONVEX_POINT_CLOUD_SHAPE_PROXYTYPE:
case CONVEX_HULL_SHAPE_PROXYTYPE:
{
btPolyhedralConvexShape* convexHullShape = (btPolyhedralConvexShape*)this;
btScalar margin = convexHullShape->getMarginNonVirtual();
convexHullShape->getNonvirtualAabb (t, aabbMin, aabbMax, margin);
}
break;
default:
#ifndef __SPU__
this->getAabb (t, aabbMin, aabbMax);
#else
btAssert (0);
#endif
break;
}
// should never reach here
btAssert (0);
}

@ -24,8 +24,6 @@ subject to the following restrictions:
#include "btCollisionMargin.h"
#include "LinearMath/btAlignedAllocator.h"
//todo: get rid of this btConvexCastResult thing!
struct btConvexCastResult;
#define MAX_PREFERRED_PENETRATION_DIRECTIONS 10
/// The btConvexShape is an abstract shape interface, implemented by all convex shapes such as btBoxShape, btConvexHullShape etc.
@ -38,20 +36,25 @@ public:
BT_DECLARE_ALIGNED_ALLOCATOR();
virtual ~btConvexShape()
{
btConvexShape ();
}
virtual ~btConvexShape();
virtual btVector3 localGetSupportingVertex(const btVector3& vec)const = 0;
////////
#ifndef __SPU__
virtual btVector3 localGetSupportingVertexWithoutMargin(const btVector3& vec) const=0;
#endif //#ifndef __SPU__
btVector3 localGetSupportVertexWithoutMarginNonVirtual (const btVector3& vec) const;
btVector3 localGetSupportVertexNonVirtual (const btVector3& vec) const;
btScalar getMarginNonVirtual () const;
void getAabbNonVirtual (const btTransform& t, btVector3& aabbMin, btVector3& aabbMax) const;
virtual btVector3 localGetSupportingVertex(const btVector3& vec)const =0;
#ifndef __SPU__
virtual btVector3 localGetSupportingVertexWithoutMargin(const btVector3& vec) const= 0;
//notice that the vectors should be unit length
virtual void batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const= 0;
#endif //#ifndef __SPU__
///getAabb's default implementation is brute force, expected derived classes to implement a fast dedicated version
void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const =0;
@ -69,6 +72,9 @@ public:
virtual void getPreferredPenetrationDirection(int index, btVector3& penetrationVector) const=0;
};

@ -20,8 +20,9 @@ subject to the following restrictions:
btConvexTriangleMeshShape ::btConvexTriangleMeshShape (btStridingMeshInterface* meshInterface, bool calcAabb)
:m_stridingMesh(meshInterface)
: btPolyhedralConvexShape(), m_stridingMesh(meshInterface)
{
m_shapeType = CONVEX_TRIANGLEMESH_SHAPE_PROXYTYPE;
if ( calcAabb )
recalcLocalAabb();
}
@ -107,7 +108,7 @@ void btConvexTriangleMeshShape::batchedUnitVectorGetSupportingVertexWithoutMargi
}
}
//todo: could do the batch inside the callback!
///@todo: could do the batch inside the callback!
for (int j=0;j<numVectors;j++)
@ -162,12 +163,12 @@ int btConvexTriangleMeshShape::getNumEdges() const
return 0;
}
void btConvexTriangleMeshShape::getEdge(int ,btPoint3& ,btPoint3& ) const
void btConvexTriangleMeshShape::getEdge(int ,btVector3& ,btVector3& ) const
{
btAssert(0);
}
void btConvexTriangleMeshShape::getVertex(int ,btPoint3& ) const
void btConvexTriangleMeshShape::getVertex(int ,btVector3& ) const
{
btAssert(0);
}
@ -177,13 +178,13 @@ int btConvexTriangleMeshShape::getNumPlanes() const
return 0;
}
void btConvexTriangleMeshShape::getPlane(btVector3& ,btPoint3& ,int ) const
void btConvexTriangleMeshShape::getPlane(btVector3& ,btVector3& ,int ) const
{
btAssert(0);
}
//not yet
bool btConvexTriangleMeshShape::isInside(const btPoint3& ,btScalar ) const
bool btConvexTriangleMeshShape::isInside(const btVector3& ,btScalar ) const
{
btAssert(0);
return false;
@ -268,15 +269,12 @@ void btConvexTriangleMeshShape::calculatePrincipalAxisTransform(btTransform& pri
btVector3 a = triangle[0] - center;
btVector3 b = triangle[1] - center;
btVector3 c = triangle[2] - center;
btVector3 abc = a + b + c;
btScalar volNeg = -btFabs(a.triple(b, c)) * btScalar(1. / 6);
for (int j = 0; j < 3; j++)
{
for (int k = 0; k <= j; k++)
{
i[j][k] = i[k][j] = volNeg * (center[j] * center[k]
+ btScalar(0.25) * (center[j] * abc[k] + center[k] * abc[j])
+ btScalar(0.1) * (a[j] * a[k] + b[j] * b[k] + c[j] * c[k])
i[j][k] = i[k][j] = volNeg * (btScalar(0.1) * (a[j] * a[k] + b[j] * b[k] + c[j] * c[k])
+ btScalar(0.05) * (a[j] * b[k] + a[k] * b[j] + a[j] * c[k] + a[k] * c[j] + b[j] * c[k] + b[k] * c[j]));
}
}

@ -29,18 +29,16 @@ public:
virtual btVector3 localGetSupportingVertexWithoutMargin(const btVector3& vec)const;
virtual void batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
virtual int getShapeType()const { return CONVEX_TRIANGLEMESH_SHAPE_PROXYTYPE; }
//debugging
virtual const char* getName()const {return "ConvexTrimesh";}
virtual int getNumVertices() const;
virtual int getNumEdges() const;
virtual void getEdge(int i,btPoint3& pa,btPoint3& pb) const;
virtual void getVertex(int i,btPoint3& vtx) const;
virtual void getEdge(int i,btVector3& pa,btVector3& pb) const;
virtual void getVertex(int i,btVector3& vtx) const;
virtual int getNumPlanes() const;
virtual void getPlane(btVector3& planeNormal,btPoint3& planeSupport,int i ) const;
virtual bool isInside(const btPoint3& pt,btScalar tolerance) const;
virtual void getPlane(btVector3& planeNormal,btVector3& planeSupport,int i ) const;
virtual bool isInside(const btVector3& pt,btScalar tolerance) const;
virtual void setLocalScaling(const btVector3& scaling);

@ -13,12 +13,12 @@ subject to the following restrictions:
3. This notice may not be removed or altered from any source distribution.
*/
#include "btCylinderShape.h"
#include "LinearMath/btPoint3.h"
btCylinderShape::btCylinderShape (const btVector3& halfExtents)
:btBoxShape(halfExtents),
m_upAxis(1)
{
m_shapeType = CYLINDER_SHAPE_PROXYTYPE;
recalcLocalAabb();
}

@ -62,11 +62,7 @@ public:
//use box inertia
// virtual void calculateLocalInertia(btScalar mass,btVector3& inertia) const;
virtual int getShapeType() const
{
return CYLINDER_SHAPE_PROXYTYPE;
}
int getUpAxis() const
{
return m_upAxis;

@ -19,8 +19,9 @@ subject to the following restrictions:
#include "btCollisionShape.h"
btEmptyShape::btEmptyShape()
btEmptyShape::btEmptyShape() : btConcaveShape ()
{
m_shapeType = EMPTY_SHAPE_PROXYTYPE;
}

@ -51,14 +51,14 @@ public:
virtual void calculateLocalInertia(btScalar mass,btVector3& inertia) const;
virtual int getShapeType() const { return EMPTY_SHAPE_PROXYTYPE;}
virtual const char* getName()const
{
return "Empty";
}
virtual void processAllTriangles(btTriangleCallback* ,const btVector3& ,const btVector3& ) const
{
}
protected:
btVector3 m_localScaling;

@ -18,71 +18,107 @@ subject to the following restrictions:
#include "LinearMath/btTransformUtil.h"
btHeightfieldTerrainShape::btHeightfieldTerrainShape(int heightStickWidth, int heightStickLength,void* heightfieldData,btScalar maxHeight,int upAxis,bool useFloatData,bool flipQuadEdges)
: m_heightStickWidth(heightStickWidth),
m_heightStickLength(heightStickLength),
m_maxHeight(maxHeight),
m_width((btScalar)heightStickWidth-1),
m_length((btScalar)heightStickLength-1),
m_heightfieldDataUnknown(heightfieldData),
m_useFloatData(useFloatData),
m_flipQuadEdges(flipQuadEdges),
m_useDiamondSubdivision(false),
m_upAxis(upAxis),
m_localScaling(btScalar(1.),btScalar(1.),btScalar(1.))
btHeightfieldTerrainShape::btHeightfieldTerrainShape
(
int heightStickWidth, int heightStickLength, void* heightfieldData,
btScalar heightScale, btScalar minHeight, btScalar maxHeight,int upAxis,
PHY_ScalarType hdt, bool flipQuadEdges
)
{
initialize(heightStickWidth, heightStickLength, heightfieldData,
heightScale, minHeight, maxHeight, upAxis, hdt,
flipQuadEdges);
}
btScalar quantizationMargin = 1.f;
//enlarge the AABB to avoid division by zero when initializing the quantization values
btVector3 clampValue(quantizationMargin,quantizationMargin,quantizationMargin);
btHeightfieldTerrainShape::btHeightfieldTerrainShape(int heightStickWidth, int heightStickLength,void* heightfieldData,btScalar maxHeight,int upAxis,bool useFloatData,bool flipQuadEdges)
{
// legacy constructor: support only float or unsigned char,
// and min height is zero
PHY_ScalarType hdt = (useFloatData) ? PHY_FLOAT : PHY_UCHAR;
btScalar minHeight = 0.0;
btVector3 halfExtents(0,0,0);
// previously, height = uchar * maxHeight / 65535.
// So to preserve legacy behavior, heightScale = maxHeight / 65535
btScalar heightScale = maxHeight / 65535;
initialize(heightStickWidth, heightStickLength, heightfieldData,
heightScale, minHeight, maxHeight, upAxis, hdt,
flipQuadEdges);
}
void btHeightfieldTerrainShape::initialize
(
int heightStickWidth, int heightStickLength, void* heightfieldData,
btScalar heightScale, btScalar minHeight, btScalar maxHeight, int upAxis,
PHY_ScalarType hdt, bool flipQuadEdges
)
{
// validation
btAssert(heightStickWidth > 1 && "bad width");
btAssert(heightStickLength > 1 && "bad length");
btAssert(heightfieldData && "null heightfield data");
// btAssert(heightScale) -- do we care? Trust caller here
btAssert(minHeight <= maxHeight && "bad min/max height");
btAssert(upAxis >= 0 && upAxis < 3 &&
"bad upAxis--should be in range [0,2]");
btAssert(hdt != PHY_UCHAR || hdt != PHY_FLOAT || hdt != PHY_SHORT &&
"Bad height data type enum");
// initialize member variables
m_shapeType = TERRAIN_SHAPE_PROXYTYPE;
m_heightStickWidth = heightStickWidth;
m_heightStickLength = heightStickLength;
m_minHeight = minHeight;
m_maxHeight = maxHeight;
m_width = (btScalar) (heightStickWidth - 1);
m_length = (btScalar) (heightStickLength - 1);
m_heightScale = heightScale;
m_heightfieldDataUnknown = heightfieldData;
m_heightDataType = hdt;
m_flipQuadEdges = flipQuadEdges;
m_useDiamondSubdivision = false;
m_upAxis = upAxis;
m_localScaling.setValue(btScalar(1.), btScalar(1.), btScalar(1.));
// determine min/max axis-aligned bounding box (aabb) values
switch (m_upAxis)
{
case 0:
{
halfExtents.setValue(
btScalar(m_maxHeight),
btScalar(m_width), //?? don't know if this should change
btScalar(m_length));
m_localAabbMin.setValue(m_minHeight, 0, 0);
m_localAabbMax.setValue(m_maxHeight, m_width, m_length);
break;
}
case 1:
{
halfExtents.setValue(
btScalar(m_width),
btScalar(m_maxHeight),
btScalar(m_length));
m_localAabbMin.setValue(0, m_minHeight, 0);
m_localAabbMax.setValue(m_width, m_maxHeight, m_length);
break;
};
case 2:
{
halfExtents.setValue(
btScalar(m_width),
btScalar(m_length),
btScalar(m_maxHeight)
);
m_localAabbMin.setValue(0, 0, m_minHeight);
m_localAabbMax.setValue(m_width, m_length, m_maxHeight);
break;
}
default:
{
//need to get valid m_upAxis
btAssert(0);
btAssert(0 && "Bad m_upAxis");
}
}
halfExtents*= btScalar(0.5);
m_localAabbMin = -halfExtents - clampValue;
m_localAabbMax = halfExtents + clampValue;
btVector3 aabbSize = m_localAabbMax - m_localAabbMin;
// remember origin (defined as exact middle of aabb)
m_localOrigin = btScalar(0.5) * (m_localAabbMin + m_localAabbMax);
}
btHeightfieldTerrainShape::~btHeightfieldTerrainShape()
{
}
@ -92,57 +128,80 @@ btHeightfieldTerrainShape::~btHeightfieldTerrainShape()
void btHeightfieldTerrainShape::getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const
{
btVector3 halfExtents = (m_localAabbMax-m_localAabbMin)* m_localScaling * btScalar(0.5);
halfExtents += btVector3(getMargin(),getMargin(),getMargin());
btVector3 localOrigin(0, 0, 0);
localOrigin[m_upAxis] = (m_minHeight + m_maxHeight) * btScalar(0.5);
localOrigin *= m_localScaling;
btMatrix3x3 abs_b = t.getBasis().absolute();
btPoint3 center = t.getOrigin();
btVector3 center = t.getOrigin();
btVector3 extent = btVector3(abs_b[0].dot(halfExtents),
abs_b[1].dot(halfExtents),
abs_b[2].dot(halfExtents));
extent += btVector3(getMargin(),getMargin(),getMargin());
aabbMin = center - extent;
aabbMax = center + extent;
}
btScalar btHeightfieldTerrainShape::getHeightFieldValue(int x,int y) const
/// This returns the "raw" (user's initial) height, not the actual height.
/// The actual height needs to be adjusted to be relative to the center
/// of the heightfield's AABB.
btScalar
btHeightfieldTerrainShape::getRawHeightFieldValue(int x,int y) const
{
btScalar val = 0.f;
if (m_useFloatData)
switch (m_heightDataType)
{
val = m_heightfieldDataFloat[(y*m_heightStickWidth)+x];
} else
{
//assume unsigned short int
unsigned char heightFieldValue = m_heightfieldDataUnsignedChar[(y*m_heightStickWidth)+x];
val = heightFieldValue* (m_maxHeight/btScalar(65535));
case PHY_FLOAT:
{
val = m_heightfieldDataFloat[(y*m_heightStickWidth)+x];
break;
}
case PHY_UCHAR:
{
unsigned char heightFieldValue = m_heightfieldDataUnsignedChar[(y*m_heightStickWidth)+x];
val = heightFieldValue * m_heightScale;
break;
}
case PHY_SHORT:
{
short hfValue = m_heightfieldDataShort[(y * m_heightStickWidth) + x];
val = hfValue * m_heightScale;
break;
}
default:
{
btAssert(!"Bad m_heightDataType");
}
}
return val;
}
/// this returns the vertex in bullet-local coordinates
void btHeightfieldTerrainShape::getVertex(int x,int y,btVector3& vertex) const
{
btAssert(x>=0);
btAssert(y>=0);
btAssert(x<m_heightStickWidth);
btAssert(y<m_heightStickLength);
btScalar height = getHeightFieldValue(x,y);
btScalar height = getRawHeightFieldValue(x,y);
switch (m_upAxis)
{
case 0:
{
vertex.setValue(
height,
height - m_localOrigin.getX(),
(-m_width/btScalar(2.0)) + x,
(-m_length/btScalar(2.0) ) + y
);
@ -152,7 +211,7 @@ void btHeightfieldTerrainShape::getVertex(int x,int y,btVector3& vertex) const
{
vertex.setValue(
(-m_width/btScalar(2.0)) + x,
height,
height - m_localOrigin.getY(),
(-m_length/btScalar(2.0)) + y
);
break;
@ -162,7 +221,7 @@ void btHeightfieldTerrainShape::getVertex(int x,int y,btVector3& vertex) const
vertex.setValue(
(-m_width/btScalar(2.0)) + x,
(-m_length/btScalar(2.0)) + y,
height
height - m_localOrigin.getZ()
);
break;
}
@ -174,45 +233,76 @@ void btHeightfieldTerrainShape::getVertex(int x,int y,btVector3& vertex) const
}
vertex*=m_localScaling;
}
static inline int
getQuantized
(
btScalar x
)
{
if (x < 0.0) {
return (int) (x - 0.5);
}
return (int) (x + 0.5);
}
/// given input vector, return quantized version
/**
This routine is basically determining the gridpoint indices for a given
input vector, answering the question: "which gridpoint is closest to the
provided point?".
"with clamp" means that we restrict the point to be in the heightfield's
axis-aligned bounding box.
*/
void btHeightfieldTerrainShape::quantizeWithClamp(int* out, const btVector3& point,int /*isMax*/) const
{
btVector3 clampedPoint(point);
clampedPoint.setMax(m_localAabbMin);
clampedPoint.setMin(m_localAabbMax);
btVector3 v = (clampedPoint);// - m_bvhAabbMin) * m_bvhQuantization;
//TODO: optimization: check out how to removed this btFabs
out[0] = getQuantized(clampedPoint.getX());
out[1] = getQuantized(clampedPoint.getY());
out[2] = getQuantized(clampedPoint.getZ());
out[0] = (int)(v.getX() + v.getX() / btFabs(v.getX())* btScalar(0.5) );
out[1] = (int)(v.getY() + v.getY() / btFabs(v.getY())* btScalar(0.5) );
out[2] = (int)(v.getZ() + v.getZ() / btFabs(v.getZ())* btScalar(0.5) );
}
/// process all triangles within the provided axis-aligned bounding box
/**
basic algorithm:
- convert input aabb to local coordinates (scale down and shift for local origin)
- convert input aabb to a range of heightfield grid points (quantize)
- iterate over all triangles in that subset of the grid
*/
void btHeightfieldTerrainShape::processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const
{
(void)callback;
(void)aabbMax;
(void)aabbMin;
//quantize the aabbMin and aabbMax, and adjust the start/end ranges
int quantizedAabbMin[3];
int quantizedAabbMax[3];
// scale down the input aabb's so they are in local (non-scaled) coordinates
btVector3 localAabbMin = aabbMin*btVector3(1.f/m_localScaling[0],1.f/m_localScaling[1],1.f/m_localScaling[2]);
btVector3 localAabbMax = aabbMax*btVector3(1.f/m_localScaling[0],1.f/m_localScaling[1],1.f/m_localScaling[2]);
// account for local origin
localAabbMin += m_localOrigin;
localAabbMax += m_localOrigin;
//quantize the aabbMin and aabbMax, and adjust the start/end ranges
int quantizedAabbMin[3];
int quantizedAabbMax[3];
quantizeWithClamp(quantizedAabbMin, localAabbMin,0);
quantizeWithClamp(quantizedAabbMax, localAabbMax,1);
// expand the min/max quantized values
// this is to catch the case where the input aabb falls between grid points!
for (int i = 0; i < 3; ++i) {
quantizedAabbMin[i]--;
quantizedAabbMax[i]++;
}
int startX=0;
int endX=m_heightStickWidth-1;
@ -223,11 +313,6 @@ void btHeightfieldTerrainShape::processAllTriangles(btTriangleCallback* callback
{
case 0:
{
quantizedAabbMin[1]+=m_heightStickWidth/2-1;
quantizedAabbMax[1]+=m_heightStickWidth/2+1;
quantizedAabbMin[2]+=m_heightStickLength/2-1;
quantizedAabbMax[2]+=m_heightStickLength/2+1;
if (quantizedAabbMin[1]>startX)
startX = quantizedAabbMin[1];
if (quantizedAabbMax[1]<endX)
@ -240,11 +325,6 @@ void btHeightfieldTerrainShape::processAllTriangles(btTriangleCallback* callback
}
case 1:
{
quantizedAabbMin[0]+=m_heightStickWidth/2-1;
quantizedAabbMax[0]+=m_heightStickWidth/2+1;
quantizedAabbMin[2]+=m_heightStickLength/2-1;
quantizedAabbMax[2]+=m_heightStickLength/2+1;
if (quantizedAabbMin[0]>startX)
startX = quantizedAabbMin[0];
if (quantizedAabbMax[0]<endX)
@ -257,11 +337,6 @@ void btHeightfieldTerrainShape::processAllTriangles(btTriangleCallback* callback
};
case 2:
{
quantizedAabbMin[0]+=m_heightStickWidth/2-1;
quantizedAabbMax[0]+=m_heightStickWidth/2+1;
quantizedAabbMin[1]+=m_heightStickLength/2-1;
quantizedAabbMax[1]+=m_heightStickLength/2+1;
if (quantizedAabbMin[0]>startX)
startX = quantizedAabbMin[0];
if (quantizedAabbMax[0]<endX)

@ -18,28 +18,80 @@ subject to the following restrictions:
#include "btConcaveShape.h"
///The btHeightfieldTerrainShape simulates a 2D heightfield terrain collision shape. You can also use the more general btBvhTriangleMeshShape instead.
///An example implementation of btHeightfieldTerrainShape is provided in Demos/VehicleDemo/VehicleDemo.cpp
///btHeightfieldTerrainShape simulates a 2D heightfield terrain
/**
The caller is responsible for maintaining the heightfield array; this
class does not make a copy.
The heightfield can be dynamic so long as the min/max height values
capture the extremes (heights must always be in that range).
The local origin of the heightfield is assumed to be the exact
center (as determined by width and length and height, with each
axis multiplied by the localScaling).
\b NOTE: be careful with coordinates. If you have a heightfield with a local
min height of -100m, and a max height of +500m, you may be tempted to place it
at the origin (0,0) and expect the heights in world coordinates to be
-100 to +500 meters.
Actually, the heights will be -300 to +300m, because bullet will re-center
the heightfield based on its AABB (which is determined by the min/max
heights). So keep in mind that once you create a btHeightfieldTerrainShape
object, the heights will be adjusted relative to the center of the AABB. This
is different to the behavior of many rendering engines, but is useful for
physics engines.
Most (but not all) rendering and heightfield libraries assume upAxis = 1
(that is, the y-axis is "up"). This class allows any of the 3 coordinates
to be "up". Make sure your choice of axis is consistent with your rendering
system.
The heightfield heights are determined from the data type used for the
heightfieldData array.
- PHY_UCHAR: height at a point is the uchar value at the
grid point, multipled by heightScale. uchar isn't recommended
because of its inability to deal with negative values, and
low resolution (8-bit).
- PHY_SHORT: height at a point is the short int value at that grid
point, multipled by heightScale.
- PHY_FLOAT: height at a point is the float value at that grid
point. heightScale is ignored when using the float heightfield
data type.
Whatever the caller specifies as minHeight and maxHeight will be honored.
The class will not inspect the heightfield to discover the actual minimum
or maximum heights. These values are used to determine the heightfield's
axis-aligned bounding box, multiplied by localScaling.
For usage and testing see the TerrainDemo.
*/
class btHeightfieldTerrainShape : public btConcaveShape
{
protected:
btVector3 m_localAabbMin;
btVector3 m_localAabbMax;
btVector3 m_localOrigin;
///terrain data
int m_heightStickWidth;
int m_heightStickLength;
btScalar m_minHeight;
btScalar m_maxHeight;
btScalar m_width;
btScalar m_length;
btScalar m_heightScale;
union
{
unsigned char* m_heightfieldDataUnsignedChar;
short* m_heightfieldDataShort;
btScalar* m_heightfieldDataFloat;
void* m_heightfieldDataUnknown;
};
bool m_useFloatData;
PHY_ScalarType m_heightDataType;
bool m_flipQuadEdges;
bool m_useDiamondSubdivision;
@ -47,31 +99,49 @@ protected:
btVector3 m_localScaling;
virtual btScalar getHeightFieldValue(int x,int y) const;
virtual btScalar getRawHeightFieldValue(int x,int y) const;
void quantizeWithClamp(int* out, const btVector3& point,int isMax) const;
void getVertex(int x,int y,btVector3& vertex) const;
inline bool testQuantizedAabbAgainstQuantizedAabb(int* aabbMin1, int* aabbMax1,const int* aabbMin2,const int* aabbMax2) const
{
bool overlap = true;
overlap = (aabbMin1[0] > aabbMax2[0] || aabbMax1[0] < aabbMin2[0]) ? false : overlap;
overlap = (aabbMin1[2] > aabbMax2[2] || aabbMax1[2] < aabbMin2[2]) ? false : overlap;
overlap = (aabbMin1[1] > aabbMax2[1] || aabbMax1[1] < aabbMin2[1]) ? false : overlap;
return overlap;
}
/// protected initialization
/**
Handles the work of constructors so that public constructors can be
backwards-compatible without a lot of copy/paste.
*/
void initialize(int heightStickWidth, int heightStickLength,
void* heightfieldData, btScalar heightScale,
btScalar minHeight, btScalar maxHeight, int upAxis,
PHY_ScalarType heightDataType, bool flipQuadEdges);
public:
btHeightfieldTerrainShape(int heightStickWidth,int heightStickHeight,void* heightfieldData, btScalar maxHeight,int upAxis,bool useFloatData,bool flipQuadEdges);
/// preferred constructor
/**
This constructor supports a range of heightfield
data types, and allows for a non-zero minimum height value.
heightScale is needed for any integer-based heightfield data types.
*/
btHeightfieldTerrainShape(int heightStickWidth,int heightStickLength,
void* heightfieldData, btScalar heightScale,
btScalar minHeight, btScalar maxHeight,
int upAxis, PHY_ScalarType heightDataType,
bool flipQuadEdges);
/// legacy constructor
/**
The legacy constructor assumes the heightfield has a minimum height
of zero. Only unsigned char or floats are supported. For legacy
compatibility reasons, heightScale is calculated as maxHeight / 65535
(and is only used when useFloatData = false).
*/
btHeightfieldTerrainShape(int heightStickWidth,int heightStickLength,void* heightfieldData, btScalar maxHeight,int upAxis,bool useFloatData,bool flipQuadEdges);
virtual ~btHeightfieldTerrainShape();
void setUseDiamondSubdivision(bool useDiamondSubdivision=true) { m_useDiamondSubdivision = useDiamondSubdivision;}
virtual int getShapeType() const
{
return TERRAIN_SHAPE_PROXYTYPE;
}
virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;

@ -17,23 +17,25 @@ subject to the following restrictions:
btMinkowskiSumShape::btMinkowskiSumShape(const btConvexShape* shapeA,const btConvexShape* shapeB)
:m_shapeA(shapeA),
: btConvexInternalShape (),
m_shapeA(shapeA),
m_shapeB(shapeB)
{
m_shapeType = MINKOWSKI_DIFFERENCE_SHAPE_PROXYTYPE;
m_transA.setIdentity();
m_transB.setIdentity();
}
btVector3 btMinkowskiSumShape::localGetSupportingVertexWithoutMargin(const btVector3& vec)const
{
btVector3 supVertexA = m_transA(m_shapeA->localGetSupportingVertexWithoutMargin(-vec*m_transA.getBasis()));
btVector3 supVertexB = m_transB(m_shapeB->localGetSupportingVertexWithoutMargin(vec*m_transB.getBasis()));
btVector3 supVertexA = m_transA(m_shapeA->localGetSupportingVertexWithoutMargin(vec*m_transA.getBasis()));
btVector3 supVertexB = m_transB(m_shapeB->localGetSupportingVertexWithoutMargin(-vec*m_transB.getBasis()));
return supVertexA - supVertexB;
}
void btMinkowskiSumShape::batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const
{
//todo: could make recursive use of batching. probably this shape is not used frequently.
///@todo: could make recursive use of batching. probably this shape is not used frequently.
for (int i=0;i<numVectors;i++)
{
supportVerticesOut[i] = localGetSupportingVertexWithoutMargin(vectors[i]);

@ -46,8 +46,6 @@ public:
const btTransform& GetTransformB()const { return m_transB;}
virtual int getShapeType() const { return MINKOWSKI_SUM_SHAPE_PROXYTYPE; }
virtual btScalar getMargin() const;
const btConvexShape* getShapeA() const { return m_shapeA;}

@ -18,8 +18,9 @@ subject to the following restrictions:
#include "LinearMath/btQuaternion.h"
btMultiSphereShape::btMultiSphereShape (const btVector3& inertiaHalfExtents,const btVector3* positions,const btScalar* radi,int numSpheres)
:m_inertiaHalfExtents(inertiaHalfExtents)
:btConvexInternalShape (), m_inertiaHalfExtents(inertiaHalfExtents)
{
m_shapeType = MULTI_SPHERE_SHAPE_PROXYTYPE;
btScalar startMargin = btScalar(1e30);
m_numSpheres = numSpheres;

@ -62,7 +62,6 @@ public:
return m_radi[index];
}
virtual int getShapeType() const { return MULTI_SPHERE_SHAPE_PROXYTYPE; }
virtual const char* getName()const
{

@ -31,10 +31,12 @@ public:
BT_DECLARE_ALIGNED_ALLOCATOR();
btMultimaterialTriangleMeshShape(): btBvhTriangleMeshShape() {}
btMultimaterialTriangleMeshShape(): btBvhTriangleMeshShape() {m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;}
btMultimaterialTriangleMeshShape(btStridingMeshInterface* meshInterface, bool useQuantizedAabbCompression, bool buildBvh = true):
btBvhTriangleMeshShape(meshInterface, useQuantizedAabbCompression, buildBvh)
{
m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;
btVector3 m_triangle[3];
const unsigned char *vertexbase;
int numverts;
@ -67,6 +69,8 @@ public:
btMultimaterialTriangleMeshShape(btStridingMeshInterface* meshInterface, bool useQuantizedAabbCompression,const btVector3& bvhAabbMin,const btVector3& bvhAabbMax, bool buildBvh = true):
btBvhTriangleMeshShape(meshInterface, useQuantizedAabbCompression, bvhAabbMin, bvhAabbMax, buildBvh)
{
m_shapeType = MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;
btVector3 m_triangle[3];
const unsigned char *vertexbase;
int numverts;
@ -107,11 +111,6 @@ public:
m_materialLookup = NULL;
*/
}
virtual int getShapeType() const
{
return MULTIMATERIAL_TRIANGLE_MESH_PROXYTYPE;
}
//debugging
virtual const char* getName()const {return "MULTIMATERIALTRIANGLEMESH";}

@ -319,19 +319,19 @@ void btOptimizedBvh::updateBvhNodes(btStridingMeshInterface* meshInterface,int f
{
int graphicsindex = indicestype==PHY_SHORT?((unsigned short*)gfxbase)[j]:gfxbase[j];
btScalar* graphicsbase = (btScalar*)(vertexbase+graphicsindex*stride);
#ifdef DEBUG_PATCH_COLORS
btVector3 mycolor = color[index&3];
graphicsbase[8] = mycolor.getX();
graphicsbase[9] = mycolor.getY();
graphicsbase[10] = mycolor.getZ();
#endif //DEBUG_PATCH_COLORS
triangleVerts[j] = btVector3(
graphicsbase[0]*meshScaling.getX(),
graphicsbase[1]*meshScaling.getY(),
graphicsbase[2]*meshScaling.getZ());
if (type == PHY_FLOAT)
{
float* graphicsbase = (float*)(vertexbase+graphicsindex*stride);
triangleVerts[j] = btVector3(
graphicsbase[0]*meshScaling.getX(),
graphicsbase[1]*meshScaling.getY(),
graphicsbase[2]*meshScaling.getZ());
}
else
{
double* graphicsbase = (double*)(vertexbase+graphicsindex*stride);
triangleVerts[j] = btVector3( btScalar(graphicsbase[0]*meshScaling.getX()), btScalar(graphicsbase[1]*meshScaling.getY()), btScalar(graphicsbase[2]*meshScaling.getZ()));
}
}

@ -15,8 +15,8 @@ subject to the following restrictions:
#include "BulletCollision/CollisionShapes/btPolyhedralConvexShape.h"
btPolyhedralConvexShape::btPolyhedralConvexShape()
:m_localAabbMin(1,1,1),
btPolyhedralConvexShape::btPolyhedralConvexShape() :btConvexInternalShape(),
m_localAabbMin(1,1,1),
m_localAabbMax(-1,-1,-1),
m_isLocalAabbValid(false),
m_optionalHull(0)
@ -25,7 +25,6 @@ m_optionalHull(0)
}
btVector3 btPolyhedralConvexShape::localGetSupportingVertexWithoutMargin(const btVector3& vec0)const
{
int i;

@ -16,7 +16,6 @@ subject to the following restrictions:
#ifndef BU_SHAPE
#define BU_SHAPE
#include "LinearMath/btPoint3.h"
#include "LinearMath/btMatrix3x3.h"
#include "LinearMath/btAabbUtil2.h"
#include "btConvexInternalShape.h"
@ -36,12 +35,28 @@ public:
btPolyhedralConvexShape();
//brute force implementations
virtual btVector3 localGetSupportingVertexWithoutMargin(const btVector3& vec)const;
virtual void batchedUnitVectorGetSupportingVertexWithoutMargin(const btVector3* vectors,btVector3* supportVerticesOut,int numVectors) const;
virtual void calculateLocalInertia(btScalar mass,btVector3& inertia) const;
void setCachedLocalAabb (const btVector3& aabbMin, const btVector3& aabbMax)
{
m_isLocalAabbValid = true;
m_localAabbMin = aabbMin;
m_localAabbMax = aabbMax;
}
inline void getCachedLocalAabb (btVector3& aabbMin, btVector3& aabbMax) const
{
btAssert(m_isLocalAabbValid);
aabbMin = m_localAabbMin;
aabbMax = m_localAabbMax;
}
inline void getNonvirtualAabb(const btTransform& trans,btVector3& aabbMin,btVector3& aabbMax, btScalar margin) const
{
@ -59,13 +74,13 @@ public:
virtual int getNumVertices() const = 0 ;
virtual int getNumEdges() const = 0;
virtual void getEdge(int i,btPoint3& pa,btPoint3& pb) const = 0;
virtual void getVertex(int i,btPoint3& vtx) const = 0;
virtual void getEdge(int i,btVector3& pa,btVector3& pb) const = 0;
virtual void getVertex(int i,btVector3& vtx) const = 0;
virtual int getNumPlanes() const = 0;
virtual void getPlane(btVector3& planeNormal,btPoint3& planeSupport,int i ) const = 0;
virtual void getPlane(btVector3& planeNormal,btVector3& planeSupport,int i ) const = 0;
// virtual int getIndex(int i) const = 0 ;
virtual bool isInside(const btPoint3& pt,btScalar tolerance) const = 0;
virtual bool isInside(const btVector3& pt,btScalar tolerance) const = 0;
/// optional Hull is for optional Separating Axis Test Hull collision detection, see Hull.cpp
class Hull* m_optionalHull;

@ -15,11 +15,10 @@ subject to the following restrictions:
#include "btScaledBvhTriangleMeshShape.h"
btScaledBvhTriangleMeshShape::btScaledBvhTriangleMeshShape(btBvhTriangleMeshShape* childShape,btVector3 localScaling)
:m_bvhTriMeshShape(childShape),
m_localScaling(localScaling)
btScaledBvhTriangleMeshShape::btScaledBvhTriangleMeshShape(btBvhTriangleMeshShape* childShape,const btVector3& localScaling)
:m_localScaling(localScaling),m_bvhTriMeshShape(childShape)
{
m_shapeType = SCALED_TRIANGLE_MESH_SHAPE_PROXYTYPE;
}
btScaledBvhTriangleMeshShape::~btScaledBvhTriangleMeshShape()
@ -35,7 +34,7 @@ class btScaledTriangleCallback : public btTriangleCallback
public:
btScaledTriangleCallback(btTriangleCallback* originalCallback,btVector3 localScaling)
btScaledTriangleCallback(btTriangleCallback* originalCallback,const btVector3& localScaling)
:m_originalCallback(originalCallback),
m_localScaling(localScaling)
{
@ -94,7 +93,7 @@ void btScaledBvhTriangleMeshShape::getAabb(const btTransform& trans,btVector3& a
btMatrix3x3 abs_b = trans.getBasis().absolute();
btPoint3 center = trans(localCenter);
btVector3 center = trans(localCenter);
btVector3 extent = btVector3(abs_b[0].dot(localHalfExtents),
abs_b[1].dot(localHalfExtents),

@ -32,15 +32,10 @@ ATTRIBUTE_ALIGNED16(class) btScaledBvhTriangleMeshShape : public btConcaveShape
public:
btScaledBvhTriangleMeshShape(btBvhTriangleMeshShape* childShape,btVector3 localScaling);
btScaledBvhTriangleMeshShape(btBvhTriangleMeshShape* childShape,const btVector3& localScaling);
virtual ~btScaledBvhTriangleMeshShape();
virtual int getShapeType() const
{
//use un-used 'FAST_CONCAVE_MESH_PROXYTYPE' for now, later add SCALED_TRIANGLE_MESH_SHAPE_PROXYTYPE to btBroadphaseProxy.h
return SCALED_TRIANGLE_MESH_SHAPE_PROXYTYPE;
}
virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;
virtual void setLocalScaling(const btVector3& scaling);

@ -18,12 +18,6 @@ subject to the following restrictions:
#include "LinearMath/btQuaternion.h"
btSphereShape ::btSphereShape (btScalar radius)
{
m_implicitShapeDimensions.setX(radius);
}
btVector3 btSphereShape::localGetSupportingVertexWithoutMargin(const btVector3& vec)const
{
(void)vec;

@ -27,8 +27,12 @@ ATTRIBUTE_ALIGNED16(class) btSphereShape : public btConvexInternalShape
public:
BT_DECLARE_ALIGNED_ALLOCATOR();
btSphereShape (btScalar radius);
btSphereShape (btScalar radius) : btConvexInternalShape ()
{
m_shapeType = SPHERE_SHAPE_PROXYTYPE;
m_implicitShapeDimensions.setX(radius);
m_collisionMargin = radius;
}
virtual btVector3 localGetSupportingVertex(const btVector3& vec)const;
virtual btVector3 localGetSupportingVertexWithoutMargin(const btVector3& vec)const;
@ -40,7 +44,6 @@ public:
virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;
virtual int getShapeType() const { return SPHERE_SHAPE_PROXYTYPE; }
btScalar getRadius() const { return m_implicitShapeDimensions.getX() * m_localScaling.getX();}

@ -19,10 +19,11 @@ subject to the following restrictions:
btStaticPlaneShape::btStaticPlaneShape(const btVector3& planeNormal,btScalar planeConstant)
:m_planeNormal(planeNormal.normalized()),
: btConcaveShape (), m_planeNormal(planeNormal.normalized()),
m_planeConstant(planeConstant),
m_localScaling(btScalar(0.),btScalar(0.),btScalar(0.))
{
m_shapeType = STATIC_PLANE_PROXYTYPE;
// btAssert( btFuzzyZero(m_planeNormal.length() - btScalar(1.)) );
}

@ -36,11 +36,6 @@ public:
virtual ~btStaticPlaneShape();
virtual int getShapeType() const
{
return STATIC_PLANE_PROXYTYPE;
}
virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax) const;
virtual void processAllTriangles(btTriangleCallback* callback,const btVector3& aabbMin,const btVector3& aabbMax) const;

@ -18,16 +18,9 @@ subject to the following restrictions:
#include "LinearMath/btVector3.h"
#include "btTriangleCallback.h"
#include "btConcaveShape.h"
/// PHY_ScalarType enumerates possible scalar types.
/// See the btStridingMeshInterface for its use
typedef enum PHY_ScalarType {
PHY_FLOAT,
PHY_DOUBLE,
PHY_INTEGER,
PHY_SHORT,
PHY_FIXEDPOINT88
} PHY_ScalarType;
/// The btStridingMeshInterface is the interface class for high performance generic access to triangle meshes, used in combination with btBvhTriangleMeshShape and some other collision shapes.
/// Using index striding of 3*sizeof(integer) it can use triangle arrays, using index striding of 1*sizeof(integer) it can handle triangle strips.
@ -77,8 +70,16 @@ class btStridingMeshInterface
virtual void preallocateIndices(int numindices)=0;
virtual bool hasPremadeAabb() const { return false; }
virtual void setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax ) const {}
virtual void getPremadeAabb(btVector3* aabbMin, btVector3* aabbMax ) const {}
virtual void setPremadeAabb(const btVector3& aabbMin, const btVector3& aabbMax ) const
{
(void) aabbMin;
(void) aabbMax;
}
virtual void getPremadeAabb(btVector3* aabbMin, btVector3* aabbMax ) const
{
(void) aabbMin;
(void) aabbMax;
}
const btVector3& getScaling() const {
return m_scaling;

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