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.
311 lines
8.6 KiB
C++
311 lines
8.6 KiB
C++
/**
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* $Id$
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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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#include "KX_RadarSensor.h"
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#include "KX_GameObject.h"
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#include "KX_PyMath.h"
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#include "PHY_IPhysicsController.h"
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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/**
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* RadarSensor constructor. Creates a near-sensor derived class, with a cone collision shape.
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*/
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KX_RadarSensor::KX_RadarSensor(SCA_EventManager* eventmgr,
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KX_GameObject* gameobj,
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PHY_IPhysicsController* physCtrl,
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double coneradius,
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double coneheight,
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int axis,
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double margin,
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double resetmargin,
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bool bFindMaterial,
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const STR_String& touchedpropname,
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class KX_Scene* kxscene,
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PyTypeObject* T)
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: KX_NearSensor(
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eventmgr,
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gameobj,
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//DT_NewCone(coneradius,coneheight),
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margin,
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resetmargin,
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bFindMaterial,
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touchedpropname,
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kxscene,
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physCtrl,
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T),
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m_coneradius(coneradius),
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m_coneheight(coneheight),
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m_axis(axis)
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{
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m_client_info->m_type = KX_ClientObjectInfo::RADAR;
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//m_client_info->m_clientobject = gameobj;
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//m_client_info->m_auxilary_info = NULL;
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//sumoObj->setClientObject(&m_client_info);
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}
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KX_RadarSensor::~KX_RadarSensor()
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{
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}
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CValue* KX_RadarSensor::GetReplica()
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{
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KX_RadarSensor* replica = new KX_RadarSensor(*this);
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replica->m_colliders = new CListValue();
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replica->Init();
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// this will copy properties and so on...
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CValue::AddDataToReplica(replica);
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replica->m_client_info = new KX_ClientObjectInfo(m_client_info->m_gameobject, KX_ClientObjectInfo::RADAR);
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if (replica->m_physCtrl)
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{
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replica->m_physCtrl = replica->m_physCtrl->GetReplica();
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if (replica->m_physCtrl)
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{
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replica->m_physCtrl->setNewClientInfo(replica->m_client_info);
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}
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}
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//todo: make sure replication works fine!
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//>m_sumoObj = new SM_Object(DT_NewCone(m_coneradius, m_coneheight),NULL,NULL,NULL);
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//replica->m_sumoObj->setMargin(m_Margin);
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//replica->m_sumoObj->setClientObject(replica->m_client_info);
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//Wrong: see KX_TouchSensor
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//bool parentUpdated = false;
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//((KX_GameObject*)replica->GetParent())->GetSGNode()->ComputeWorldTransforms(NULL,parentUpdated);
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replica->SynchronizeTransform();
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return replica;
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}
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/**
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* Transforms the collision object. A cone is not correctly centered
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* for usage. */
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void KX_RadarSensor::SynchronizeTransform()
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{
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// Getting the parent location was commented out. Why?
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MT_Transform trans;
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trans.setOrigin(((KX_GameObject*)GetParent())->NodeGetWorldPosition());
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trans.setBasis(((KX_GameObject*)GetParent())->NodeGetWorldOrientation());
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// What is the default orientation? pointing in the -y direction?
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// is the geometry correctly converted?
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// a collision cone is oriented
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// center the cone correctly
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// depends on the radar 'axis'
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switch (m_axis)
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{
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case 0: // +X Axis
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{
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MT_Quaternion rotquatje(MT_Vector3(0,0,1),MT_radians(90));
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trans.rotate(rotquatje);
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trans.translate(MT_Vector3 (0, -m_coneheight/2.0 ,0));
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break;
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};
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case 1: // +Y Axis
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{
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MT_Quaternion rotquatje(MT_Vector3(1,0,0),MT_radians(-180));
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trans.rotate(rotquatje);
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trans.translate(MT_Vector3 (0, -m_coneheight/2.0 ,0));
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break;
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};
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case 2: // +Z Axis
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{
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MT_Quaternion rotquatje(MT_Vector3(1,0,0),MT_radians(-90));
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trans.rotate(rotquatje);
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trans.translate(MT_Vector3 (0, -m_coneheight/2.0 ,0));
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break;
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};
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case 3: // -X Axis
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{
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MT_Quaternion rotquatje(MT_Vector3(0,0,1),MT_radians(-90));
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trans.rotate(rotquatje);
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trans.translate(MT_Vector3 (0, -m_coneheight/2.0 ,0));
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break;
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};
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case 4: // -Y Axis
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{
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//MT_Quaternion rotquatje(MT_Vector3(1,0,0),MT_radians(-180));
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//trans.rotate(rotquatje);
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trans.translate(MT_Vector3 (0, -m_coneheight/2.0 ,0));
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break;
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};
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case 5: // -Z Axis
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{
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MT_Quaternion rotquatje(MT_Vector3(1,0,0),MT_radians(90));
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trans.rotate(rotquatje);
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trans.translate(MT_Vector3 (0, -m_coneheight/2.0 ,0));
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break;
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};
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default:
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{
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}
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}
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//Using a temp variable to translate MT_Point3 to float[3].
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//float[3] works better for the Python interface.
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MT_Point3 temp = trans.getOrigin();
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m_cone_origin[0] = temp[0];
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m_cone_origin[1] = temp[1];
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m_cone_origin[2] = temp[2];
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temp = trans(MT_Point3(0, -m_coneheight/2.0 ,0));
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m_cone_target[0] = temp[0];
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m_cone_target[1] = temp[1];
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m_cone_target[2] = temp[2];
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if (m_physCtrl)
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{
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MT_Quaternion orn = trans.getRotation();
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MT_Point3 pos = trans.getOrigin();
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m_physCtrl->setPosition(pos[0],pos[1],pos[2]);
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m_physCtrl->setOrientation(orn[0],orn[1],orn[2],orn[3]);
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m_physCtrl->calcXform();
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}
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}
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/* ------------------------------------------------------------------------- */
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/* Python Functions */
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/* ------------------------------------------------------------------------- */
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//Deprecated ----->
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/* getConeOrigin */
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const char KX_RadarSensor::GetConeOrigin_doc[] =
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"getConeOrigin()\n"
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"\tReturns the origin of the cone with which to test. The origin\n"
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"\tis in the middle of the cone.";
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PyObject* KX_RadarSensor::PyGetConeOrigin(PyObject* self) {
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ShowDeprecationWarning("getConeOrigin()", "the coneOrigin property");
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PyObject *retVal = PyList_New(3);
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PyList_SetItem(retVal, 0, PyFloat_FromDouble(m_cone_origin[0]));
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PyList_SetItem(retVal, 1, PyFloat_FromDouble(m_cone_origin[1]));
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PyList_SetItem(retVal, 2, PyFloat_FromDouble(m_cone_origin[2]));
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return retVal;
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}
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/* getConeOrigin */
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const char KX_RadarSensor::GetConeTarget_doc[] =
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"getConeTarget()\n"
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"\tReturns the center of the bottom face of the cone with which to test.\n";
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PyObject* KX_RadarSensor::PyGetConeTarget(PyObject* self) {
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ShowDeprecationWarning("getConeTarget()", "the coneTarget property");
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PyObject *retVal = PyList_New(3);
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PyList_SetItem(retVal, 0, PyFloat_FromDouble(m_cone_target[0]));
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PyList_SetItem(retVal, 1, PyFloat_FromDouble(m_cone_target[1]));
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PyList_SetItem(retVal, 2, PyFloat_FromDouble(m_cone_target[2]));
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return retVal;
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}
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/* getConeHeight */
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const char KX_RadarSensor::GetConeHeight_doc[] =
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"getConeHeight()\n"
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"\tReturns the height of the cone with which to test.\n";
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PyObject* KX_RadarSensor::PyGetConeHeight(PyObject* self) {
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ShowDeprecationWarning("getConeHeight()", "the distance property");
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return PyFloat_FromDouble(m_coneheight);
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}
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//<----- Deprecated
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/* ------------------------------------------------------------------------- */
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/* Python Integration Hooks */
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/* ------------------------------------------------------------------------- */
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PyTypeObject KX_RadarSensor::Type = {
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PyObject_HEAD_INIT(NULL)
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0,
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"KX_RadarSensor",
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sizeof(KX_RadarSensor),
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0,
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PyDestructor,
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0,
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0,
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0,
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0,
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py_base_repr,
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0,0,0,0,0,0,
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py_base_getattro,
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py_base_setattro,
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0,0,0,0,0,0,0,0,0,
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Methods
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};
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PyParentObject KX_RadarSensor::Parents[] = {
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&KX_RadarSensor::Type,
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&KX_NearSensor::Type,
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&KX_TouchSensor::Type,
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&SCA_ISensor::Type,
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&SCA_ILogicBrick::Type,
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&CValue::Type,
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NULL
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};
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PyMethodDef KX_RadarSensor::Methods[] = {
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//Deprecated ----->
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{"getConeOrigin", (PyCFunction) KX_RadarSensor::sPyGetConeOrigin,
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METH_VARARGS, (PY_METHODCHAR)GetConeOrigin_doc},
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{"getConeTarget", (PyCFunction) KX_RadarSensor::sPyGetConeTarget,
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METH_VARARGS, (PY_METHODCHAR)GetConeTarget_doc},
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{"getConeHeight", (PyCFunction) KX_RadarSensor::sPyGetConeHeight,
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METH_VARARGS, (PY_METHODCHAR)GetConeHeight_doc},
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//<-----
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{NULL} //Sentinel
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};
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PyAttributeDef KX_RadarSensor::Attributes[] = {
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KX_PYATTRIBUTE_FLOAT_ARRAY_RO("coneOrigin", KX_RadarSensor, m_cone_origin, 3),
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KX_PYATTRIBUTE_FLOAT_ARRAY_RO("coneTarget", KX_RadarSensor, m_cone_target, 3),
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KX_PYATTRIBUTE_FLOAT_RW("angle", 0, 360, KX_RadarSensor, m_coneradius),
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KX_PYATTRIBUTE_INT_RW("axis", 0, 5, true, KX_RadarSensor, m_axis),
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{NULL} //Sentinel
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};
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PyObject* KX_RadarSensor::py_getattro(PyObject *attr)
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{
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py_getattro_up(KX_NearSensor);
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}
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int KX_RadarSensor::py_setattro(PyObject *attr, PyObject* value)
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{
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py_setattro_up(KX_NearSensor);
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}
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