forked from bartvdbraak/blender
51b4145841
This commit contains a number of performance improvements for the BGE in the Scenegraph (parent relation between objects in the scene) and view frustrum culling. The scenegraph improvement consists in avoiding position update if the object has not moved since last update and the removal of redundant updates and synchronization with the physics engine. The view frustrum culling improvement consists in using the DBVT broadphase facility of Bullet to build a tree of graphical objects in the scene. The elements of the tree are Aabb boxes (Aligned Axis Bounding Boxes) enclosing the objects. This provides good precision in closed and opened scenes. This new culling system is enabled by default but just in case, it can be disabled with a button in the World settings. There is no do_version in this commit but it will be added before the 2.49 release. For now you must manually enable the DBVT culling option in World settings when you open an old file. The above improvements speed up scenegraph and culling up to 5x. However, this performance improvement is only visible when you have hundreds or thousands of objects. The main interest of the DBVT tree is to allow easy occlusion culling and automatic LOD system. This will be the object of further improvements.
99 lines
3.9 KiB
C++
99 lines
3.9 KiB
C++
/**
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef PHY_IPHYSICSCONTROLLER_H
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#define PHY_IPHYSICSCONTROLLER_H
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#include "PHY_IController.h"
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/**
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PHY_IPhysicsController is the abstract simplified Interface to a physical object.
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It contains the IMotionState and IDeformableMesh Interfaces.
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*/
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class PHY_IPhysicsController : public PHY_IController
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{
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public:
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virtual ~PHY_IPhysicsController();
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/**
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SynchronizeMotionStates ynchronizes dynas, kinematic and deformable entities (and do 'late binding')
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*/
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virtual bool SynchronizeMotionStates(float time)=0;
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/**
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WriteMotionStateToDynamics ynchronizes dynas, kinematic and deformable entities (and do 'late binding')
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*/
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virtual void WriteMotionStateToDynamics(bool nondynaonly)=0;
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virtual void WriteDynamicsToMotionState()=0;
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// controller replication
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virtual void PostProcessReplica(class PHY_IMotionState* motionstate,class PHY_IPhysicsController* parentctrl)=0;
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// kinematic methods
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virtual void RelativeTranslate(float dlocX,float dlocY,float dlocZ,bool local)=0;
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virtual void RelativeRotate(const float drot[12],bool local)=0;
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virtual void getOrientation(float &quatImag0,float &quatImag1,float &quatImag2,float &quatReal)=0;
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virtual void setOrientation(float quatImag0,float quatImag1,float quatImag2,float quatReal)=0;
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virtual void setPosition(float posX,float posY,float posZ)=0;
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virtual void getPosition(PHY__Vector3& pos) const=0;
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virtual void setScaling(float scaleX,float scaleY,float scaleZ)=0;
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// physics methods
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virtual void ApplyTorque(float torqueX,float torqueY,float torqueZ,bool local)=0;
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virtual void ApplyForce(float forceX,float forceY,float forceZ,bool local)=0;
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virtual void SetAngularVelocity(float ang_velX,float ang_velY,float ang_velZ,bool local)=0;
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virtual void SetLinearVelocity(float lin_velX,float lin_velY,float lin_velZ,bool local)=0;
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virtual void resolveCombinedVelocities(float linvelX,float linvelY,float linvelZ,float angVelX,float angVelY,float angVelZ) = 0;
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virtual void applyImpulse(float attachX,float attachY,float attachZ, float impulseX,float impulseY,float impulseZ)=0;
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virtual void SetActive(bool active)=0;
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// reading out information from physics
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virtual void GetLinearVelocity(float& linvX,float& linvY,float& linvZ)=0;
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virtual void GetVelocity(const float posX,const float posY,const float posZ,float& linvX,float& linvY,float& linvZ)=0;
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virtual void getReactionForce(float& forceX,float& forceY,float& forceZ)=0;
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// dyna's that are rigidbody are free in orientation, dyna's with non-rigidbody are restricted
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virtual void setRigidBody(bool rigid)=0;
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virtual PHY_IPhysicsController* GetReplica() {return 0;}
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virtual void calcXform() =0;
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virtual void SetMargin(float margin) =0;
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virtual float GetMargin() const=0;
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virtual float GetRadius() const=0;
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virtual void SetRadius(float margin) = 0;
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PHY__Vector3 GetWorldPosition(PHY__Vector3& localpos);
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};
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#endif //PHY_IPHYSICSCONTROLLER_H
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