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Implementation of virtual void CommonRenderInterface::removeGraphicsInstance(int instanceUid)

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for GLInstancingRenderer (OpenGL3+) and SimpleOpenGL2Renderer (OpenGL2)
Refactored the add/remove object pool in Bullet3Common/b3ResizablePool.h
Added CommonRigidBodyBase::deleteRigidBody, also removing its graphics instance.
This commit is contained in:
Erwin Coumans
2017-05-03 17:05:05 -07:00
parent 6f7601966d
commit 152e3da3e4
12 changed files with 316 additions and 62 deletions
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202
examples/OpenGLWindow/GLInstancingRenderer.cpp
View File

@@ -53,6 +53,8 @@ float shadowMapWorldSize=10;
#include "Bullet3Common/b3Vector3.h"
#include "Bullet3Common/b3Quaternion.h"
#include "Bullet3Common/b3Matrix3x3.h"
#include "Bullet3Common/b3ResizablePool.h"
#include "LoadShader.h"
#include "GLInstanceRendererInternalData.h"
@@ -90,7 +92,7 @@ struct b3GraphicsInstance
int m_numVertices;
int m_numGraphicsInstances;
b3AlignedObjectArray<int> m_tempObjectUids;
int m_instanceOffset;
int m_vertexArrayOffset;
int m_primitiveType;
@@ -144,7 +146,18 @@ struct InternalTextureHandle
int m_height;
};
struct b3PublicGraphicsInstanceData
{
int m_shapeIndex;
int m_internalInstanceIndex;
GLfloat m_position[4];
GLfloat m_orientation[4];
GLfloat m_color[4];
GLfloat m_scale[4];
};
typedef b3PoolBodyHandle<b3PublicGraphicsInstanceData> b3PublicGraphicsInstance;
struct InternalDataRenderer : public GLInstanceRendererInternalData
{
@@ -165,7 +178,10 @@ struct InternalDataRenderer : public GLInstanceRendererInternalData
GLuint m_renderFrameBuffer;
b3ResizablePool< b3PublicGraphicsInstance> m_publicGraphicsInstances;
InternalDataRenderer() :
m_activeCamera(&m_defaultCamera1),
m_shadowMap(0),
@@ -284,6 +300,8 @@ void GLInstancingRenderer::removeAllInstances()
delete m_graphicsInstances[i];
}
m_graphicsInstances.clear();
m_data->m_publicGraphicsInstances.exitHandles();
m_data->m_publicGraphicsInstances.initHandles();
}
@@ -313,8 +331,13 @@ GLInstancingRenderer::~GLInstancingRenderer()
void GLInstancingRenderer::writeSingleInstanceTransformToCPU(const float* position, const float* orientation, int srcIndex)
void GLInstancingRenderer::writeSingleInstanceTransformToCPU(const float* position, const float* orientation, int bodyUniqueId)
{
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(bodyUniqueId);
b3Assert(pg);
int srcIndex = pg->m_internalInstanceIndex;
b3Assert(srcIndex<m_data->m_totalNumInstances);
b3Assert(srcIndex>=0);
m_data->m_instance_positions_ptr[srcIndex*4+0]=position[0];
@@ -327,16 +350,16 @@ void GLInstancingRenderer::writeSingleInstanceTransformToCPU(const float* positi
m_data->m_instance_quaternion_ptr[srcIndex*4+2]=orientation[2];
m_data->m_instance_quaternion_ptr[srcIndex*4+3]=orientation[3];
/* m_data->m_instance_colors_ptr[srcIndex*4+0]=color[0];
m_data->m_instance_colors_ptr[srcIndex*4+1]=color[1];
m_data->m_instance_colors_ptr[srcIndex*4+2]=color[2];
m_data->m_instance_colors_ptr[srcIndex*4+3]=color[3];
*/
}
void GLInstancingRenderer::readSingleInstanceTransformFromCPU(int srcIndex, float* position, float* orientation)
void GLInstancingRenderer::readSingleInstanceTransformFromCPU(int bodyUniqueId, float* position, float* orientation)
{
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(bodyUniqueId);
b3Assert(pg);
int srcIndex = pg->m_internalInstanceIndex;
b3Assert(srcIndex<m_data->m_totalNumInstances);
b3Assert(srcIndex>=0);
position[0] = m_data->m_instance_positions_ptr[srcIndex*4+0];
@@ -348,16 +371,23 @@ void GLInstancingRenderer::readSingleInstanceTransformFromCPU(int srcIndex, floa
orientation[2] = m_data->m_instance_quaternion_ptr[srcIndex*4+2];
orientation[3] = m_data->m_instance_quaternion_ptr[srcIndex*4+3];
}
void GLInstancingRenderer::writeSingleInstanceColorToCPU(double* color, int srcIndex)
void GLInstancingRenderer::writeSingleInstanceColorToCPU(double* color, int bodyUniqueId)
{
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(bodyUniqueId);
b3Assert(pg);
int srcIndex = pg->m_internalInstanceIndex;
m_data->m_instance_colors_ptr[srcIndex*4+0]=float(color[0]);
m_data->m_instance_colors_ptr[srcIndex*4+1]=float(color[1]);
m_data->m_instance_colors_ptr[srcIndex*4+2]=float(color[2]);
m_data->m_instance_colors_ptr[srcIndex*4+3]=float(color[3]);
}
void GLInstancingRenderer::writeSingleInstanceColorToCPU(float* color, int srcIndex)
void GLInstancingRenderer::writeSingleInstanceColorToCPU(float* color, int bodyUniqueId)
{
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(bodyUniqueId);
b3Assert(pg);
int srcIndex = pg->m_internalInstanceIndex;
m_data->m_instance_colors_ptr[srcIndex*4+0]=color[0];
m_data->m_instance_colors_ptr[srcIndex*4+1]=color[1];
@@ -365,25 +395,37 @@ void GLInstancingRenderer::writeSingleInstanceColorToCPU(float* color, int srcIn
m_data->m_instance_colors_ptr[srcIndex*4+3]=color[3];
}
void GLInstancingRenderer::writeSingleInstanceScaleToCPU(float* scale, int srcIndex)
void GLInstancingRenderer::writeSingleInstanceScaleToCPU(float* scale, int bodyUniqueId)
{
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(bodyUniqueId);
b3Assert(pg);
int srcIndex = pg->m_internalInstanceIndex;
m_data->m_instance_scale_ptr[srcIndex*3+0]=scale[0];
m_data->m_instance_scale_ptr[srcIndex*3+1]=scale[1];
m_data->m_instance_scale_ptr[srcIndex*3+2]=scale[2];
}
void GLInstancingRenderer::writeSingleInstanceScaleToCPU(double* scale, int srcIndex)
void GLInstancingRenderer::writeSingleInstanceScaleToCPU(double* scale, int bodyUniqueId)
{
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(bodyUniqueId);
b3Assert(pg);
int srcIndex = pg->m_internalInstanceIndex;
m_data->m_instance_scale_ptr[srcIndex*3+0]=scale[0];
m_data->m_instance_scale_ptr[srcIndex*3+1]=scale[1];
m_data->m_instance_scale_ptr[srcIndex*3+2]=scale[2];
}
void GLInstancingRenderer::writeSingleInstanceTransformToGPU(float* position, float* orientation, int objectIndex)
void GLInstancingRenderer::writeSingleInstanceTransformToGPU(float* position, float* orientation, int objectUniqueId)
{
glBindBuffer(GL_ARRAY_BUFFER, m_data->m_vbo);
//glFlush();
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(objectUniqueId);
b3Assert(pg);
int objectIndex = pg->m_internalInstanceIndex;
char* orgBase = (char*)glMapBuffer( GL_ARRAY_BUFFER,GL_READ_WRITE);
//b3GraphicsInstance* gfxObj = m_graphicsInstances[k];
int totalNumInstances= 0;
@@ -574,15 +616,92 @@ int GLInstancingRenderer::registerGraphicsInstance(int shapeIndex, const double*
return registerGraphicsInstance(shapeIndex,pos,orn,color,scaling);
}
int GLInstancingRenderer::registerGraphicsInstance(int shapeIndex, const float* position, const float* quaternion, const float* color, const float* scaling)
void GLInstancingRenderer::rebuildGraphicsInstances()
{
b3Assert(shapeIndex == (m_graphicsInstances.size()-1));
b3Assert(m_graphicsInstances.size()<m_data->m_maxNumObjectCapacity-1);
m_data->m_totalNumInstances = 0;
b3AlignedObjectArray<int> usedObjects;
m_data->m_publicGraphicsInstances.getUsedHandles(usedObjects);
for (int i=0;i<usedObjects.size();i++)
{
int bodyUniqueId = usedObjects[i];
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(bodyUniqueId);
b3Assert(pg);
int srcIndex = pg->m_internalInstanceIndex;
pg->m_position[0] = m_data->m_instance_positions_ptr[srcIndex*4+0];
pg->m_position[1] = m_data->m_instance_positions_ptr[srcIndex*4+1];
pg->m_position[2] = m_data->m_instance_positions_ptr[srcIndex*4+2];
pg->m_orientation[0] = m_data->m_instance_quaternion_ptr[srcIndex*4+0];
pg->m_orientation[1] = m_data->m_instance_quaternion_ptr[srcIndex*4+1];
pg->m_orientation[2] = m_data->m_instance_quaternion_ptr[srcIndex*4+2];
pg->m_orientation[3] = m_data->m_instance_quaternion_ptr[srcIndex*4+3];
pg->m_color[0] = m_data->m_instance_colors_ptr[srcIndex*4+0];
pg->m_color[1] = m_data->m_instance_colors_ptr[srcIndex*4+1];
pg->m_color[2] = m_data->m_instance_colors_ptr[srcIndex*4+2];
pg->m_color[3] = m_data->m_instance_colors_ptr[srcIndex*4+3];
pg->m_scale[0] = m_data->m_instance_scale_ptr[srcIndex*3+0];
pg->m_scale[1] = m_data->m_instance_scale_ptr[srcIndex*3+1];
pg->m_scale[2] = m_data->m_instance_scale_ptr[srcIndex*3+2];
}
for (int i=0;i<m_graphicsInstances.size();i++)
{
m_graphicsInstances[i]->m_numGraphicsInstances = 0;
m_graphicsInstances[i]->m_instanceOffset = 0;
m_graphicsInstances[i]->m_tempObjectUids.clear();
}
for (int i=0;i<usedObjects.size();i++)
{
int bodyUniqueId = usedObjects[i];
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(bodyUniqueId);
m_graphicsInstances[pg->m_shapeIndex]->m_tempObjectUids.push_back(bodyUniqueId);
}
int curOffset = 0;
m_data->m_totalNumInstances = 0;
for (int i=0;i<m_graphicsInstances.size();i++)
{
m_graphicsInstances[i]->m_instanceOffset = curOffset;
m_graphicsInstances[i]->m_numGraphicsInstances = 0;
for (int g=0;g<m_graphicsInstances[i]->m_tempObjectUids.size();g++)
{
curOffset++;
int objectUniqueId = m_graphicsInstances[i]->m_tempObjectUids[g];
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(objectUniqueId);
registerGraphicsInstanceInternal(objectUniqueId,pg->m_position,pg->m_orientation,pg->m_color,pg->m_scale);
}
}
}
void GLInstancingRenderer::removeGraphicsInstance(int instanceUid)
{
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(instanceUid);
b3Assert(pg);
if (pg)
{
m_data->m_publicGraphicsInstances.freeHandle(instanceUid);
rebuildGraphicsInstances();
}
}
int GLInstancingRenderer::registerGraphicsInstanceInternal(int newUid, const float* position, const float* quaternion, const float* color, const float* scaling)
{
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(newUid);
int shapeIndex = pg->m_shapeIndex;
// b3Assert(pg);
// int objectIndex = pg->m_internalInstanceIndex;
b3GraphicsInstance* gfxObj = m_graphicsInstances[shapeIndex];
int index = gfxObj->m_numGraphicsInstances + gfxObj->m_instanceOffset;
pg->m_internalInstanceIndex = index;
int maxElements = m_data->m_instance_positions_ptr.size();
if (index*4<maxElements)
@@ -613,7 +732,50 @@ int GLInstancingRenderer::registerGraphicsInstance(int shapeIndex, const float*
b3Error("registerGraphicsInstance out of range, %d\n", maxElements);
return -1;
}
return index;//gfxObj->m_numGraphicsInstances;
return newUid;//gfxObj->m_numGraphicsInstances;
}
int GLInstancingRenderer::registerGraphicsInstance(int shapeIndex, const float* position, const float* quaternion, const float* color, const float* scaling)
{
int newUid = m_data->m_publicGraphicsInstances.allocHandle();
b3PublicGraphicsInstance* pg = m_data->m_publicGraphicsInstances.getHandle(newUid);
pg->m_shapeIndex = shapeIndex;
//b3Assert(shapeIndex == (m_graphicsInstances.size()-1));
b3Assert(m_graphicsInstances.size()<m_data->m_maxNumObjectCapacity-1);
if (shapeIndex == (m_graphicsInstances.size()-1))
{
registerGraphicsInstanceInternal(newUid, position,quaternion,color,scaling);
} else
{
int srcIndex = m_data->m_totalNumInstances++;
pg->m_internalInstanceIndex = srcIndex;
m_data->m_instance_positions_ptr[srcIndex*4+0] = position[0];
m_data->m_instance_positions_ptr[srcIndex*4+1] = position[1];
m_data->m_instance_positions_ptr[srcIndex*4+2] = position[2];
m_data->m_instance_positions_ptr[srcIndex*4+3] = 1.;
m_data->m_instance_quaternion_ptr[srcIndex*4+0] = quaternion[0];
m_data->m_instance_quaternion_ptr[srcIndex*4+1] = quaternion[1];
m_data->m_instance_quaternion_ptr[srcIndex*4+2] = quaternion[2];
m_data->m_instance_quaternion_ptr[srcIndex*4+3] = quaternion[3];
m_data->m_instance_colors_ptr[srcIndex*4+0] = color[0];
m_data->m_instance_colors_ptr[srcIndex*4+1] = color[1];
m_data->m_instance_colors_ptr[srcIndex*4+2] = color[2];
m_data->m_instance_colors_ptr[srcIndex*4+3] = color[3];
m_data->m_instance_scale_ptr[srcIndex*3+0] = scaling[0];
m_data->m_instance_scale_ptr[srcIndex*3+1] = scaling[1];
m_data->m_instance_scale_ptr[srcIndex*3+2] = scaling[2];
rebuildGraphicsInstances();
}
return newUid;
}

8
examples/OpenGLWindow/GLInstancingRenderer.h
View File

@@ -41,10 +41,10 @@ class GLInstancingRenderer : public CommonRenderInterface
int m_upAxis;
bool m_enableBlend;
int registerGraphicsInstanceInternal(int shapeIndex, const float* position, const float* quaternion, const float* color, const float* scaling);
void rebuildGraphicsInstances();
public:
GLInstancingRenderer(int m_maxObjectCapacity, int maxShapeCapacityInBytes = 56*1024*1024);
virtual ~GLInstancingRenderer();
@@ -57,7 +57,8 @@ public:
void InitShaders();
void CleanupShaders();
virtual void removeAllInstances();
virtual void removeGraphicsInstance(int instanceUid);
virtual void updateShape(int shapeIndex, const float* vertices);
///vertices must be in the format x,y,z, nx,ny,nz, u,v
@@ -72,6 +73,7 @@ public:
virtual int registerGraphicsInstance(int shapeIndex, const float* position, const float* quaternion, const float* color, const float* scaling);
virtual int registerGraphicsInstance(int shapeIndex, const double* position, const double* quaternion, const double* color, const double* scaling);
void writeTransforms();

80
examples/OpenGLWindow/SimpleOpenGL2Renderer.cpp
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@@ -6,6 +6,7 @@
#include "GLInstanceGraphicsShape.h"
#include "Bullet3Common/b3Quaternion.h"
#include "Bullet3Common/b3Transform.h"
#include "Bullet3Common/b3ResizablePool.h"
B3_ATTRIBUTE_ALIGNED16(struct) SimpleGL2Shape
{
@@ -38,13 +39,18 @@ struct InternalTextureHandle2
int m_height;
};
typedef b3PoolBodyHandle<SimpleGL2Instance> SimpleGL2InstanceHandle;
struct SimpleOpenGL2RendererInternalData
{
int m_width;
int m_height;
SimpleCamera m_camera;
b3AlignedObjectArray<SimpleGL2Shape*> m_shapes;
b3AlignedObjectArray<SimpleGL2Instance> m_graphicsInstances;
//b3AlignedObjectArray<SimpleGL2Instance> m_graphicsInstances1;
b3ResizablePool<SimpleGL2InstanceHandle> m_graphicsInstancesPool;
b3AlignedObjectArray<InternalTextureHandle2> m_textureHandles;
};
@@ -118,11 +124,17 @@ void SimpleOpenGL2Renderer::removeAllInstances()
delete m_data->m_shapes[i];
}
m_data->m_shapes.clear();
m_data->m_graphicsInstances.clear();
m_data->m_graphicsInstancesPool.exitHandles();
m_data->m_graphicsInstancesPool.initHandles();
//also destroy textures?
m_data->m_textureHandles.clear();
}
void SimpleOpenGL2Renderer::removeGraphicsInstance(int instanceUid)
{
m_data->m_graphicsInstancesPool.freeHandle(instanceUid);
}
void SimpleOpenGL2Renderer::writeSingleInstanceColorToCPU(float* color, int srcIndex)
{
@@ -142,7 +154,7 @@ void SimpleOpenGL2Renderer::writeSingleInstanceScaleToCPU(double* scale, int src
int SimpleOpenGL2Renderer::getTotalNumInstances() const
{
return m_data->m_graphicsInstances.size();
return m_data->m_graphicsInstancesPool.getNumHandles();
}
void SimpleOpenGL2Renderer::getCameraViewMatrix(float viewMat[16]) const
@@ -158,7 +170,13 @@ void SimpleOpenGL2Renderer::getCameraProjectionMatrix(float projMat[16]) const
void SimpleOpenGL2Renderer::drawOpenGL(int instanceIndex)
{
const SimpleGL2Instance& inst = m_data->m_graphicsInstances[instanceIndex];
const SimpleGL2Instance* instPtr = m_data->m_graphicsInstancesPool.getHandle(instanceIndex);
if (0==instPtr)
{
b3Assert(0);
return;
}
const SimpleGL2Instance& inst = *instPtr;
const SimpleGL2Shape* shape = m_data->m_shapes[inst.m_shapeIndex];
@@ -244,9 +262,11 @@ void SimpleOpenGL2Renderer::drawOpenGL(int instanceIndex)
void SimpleOpenGL2Renderer::drawSceneInternal(int pass, int cameraUpAxis)
{
for (int i=0;i<m_data->m_graphicsInstances.size();i++)
b3AlignedObjectArray<int> usedHandles;
m_data->m_graphicsInstancesPool.getUsedHandles(usedHandles);
for (int i=0;i<usedHandles.size();i++)
{
drawOpenGL(i);
drawOpenGL(usedHandles[i]);
}
#if 0
@@ -435,8 +455,12 @@ void SimpleOpenGL2Renderer::activateTexture(int textureIndex)
int SimpleOpenGL2Renderer::registerGraphicsInstance(int shapeIndex, const double* position, const double* quaternion, const double* color, const double* scaling)
{
int sz = m_data->m_graphicsInstances.size();
SimpleGL2Instance& instance = m_data->m_graphicsInstances.expand();
int newHandle = m_data->m_graphicsInstancesPool.allocHandle();
// int sz = m_data->m_graphicsInstances.size();
SimpleGL2Instance& instance = *m_data->m_graphicsInstancesPool.getHandle(newHandle);
instance.m_shapeIndex = shapeIndex;
instance.m_position[0] = position[0];
instance.m_position[1] = position[1];
@@ -451,13 +475,13 @@ int SimpleOpenGL2Renderer::registerGraphicsInstance(int shapeIndex, const double
instance.m_scaling[0] = scaling[0];
instance.m_scaling[1] = scaling[1];
instance.m_scaling[2] = scaling[2];
return sz;
return newHandle;
}
int SimpleOpenGL2Renderer::registerGraphicsInstance(int shapeIndex, const float* position, const float* quaternion, const float* color, const float* scaling)
{
int sz = m_data->m_graphicsInstances.size();
SimpleGL2Instance& instance = m_data->m_graphicsInstances.expand();
int newHandle = m_data->m_graphicsInstancesPool.allocHandle();
SimpleGL2Instance& instance = *m_data->m_graphicsInstancesPool.getHandle(newHandle);
instance.m_shapeIndex = shapeIndex;
instance.m_position[0] = position[0];
instance.m_position[1] = position[1];
@@ -472,7 +496,7 @@ int SimpleOpenGL2Renderer::registerGraphicsInstance(int shapeIndex, const float*
instance.m_scaling[0] = scaling[0];
instance.m_scaling[1] = scaling[1];
instance.m_scaling[2] = scaling[2];
return sz;
return newHandle;
}
void SimpleOpenGL2Renderer::drawLines(const float* positions, const float color[4], int numPoints, int pointStrideInBytes, const unsigned int* indices, int numIndices, float pointDrawSize)
@@ -545,26 +569,30 @@ int SimpleOpenGL2Renderer::registerShape(const float* vertices, int numvertices,
void SimpleOpenGL2Renderer::writeSingleInstanceTransformToCPU(const float* position, const float* orientation, int srcIndex)
{
m_data->m_graphicsInstances[srcIndex].m_position[0] = position[0];
m_data->m_graphicsInstances[srcIndex].m_position[1] = position[1];
m_data->m_graphicsInstances[srcIndex].m_position[2] = position[2];
SimpleGL2Instance& graphicsInstance = *m_data->m_graphicsInstancesPool.getHandle(srcIndex);
graphicsInstance.m_position[0] = position[0];
graphicsInstance.m_position[1] = position[1];
graphicsInstance.m_position[2] = position[2];
m_data->m_graphicsInstances[srcIndex].orn[0] = orientation[0];
m_data->m_graphicsInstances[srcIndex].orn[1] = orientation[1];
m_data->m_graphicsInstances[srcIndex].orn[2] = orientation[2];
m_data->m_graphicsInstances[srcIndex].orn[3] = orientation[3];
graphicsInstance.orn[0] = orientation[0];
graphicsInstance.orn[1] = orientation[1];
graphicsInstance.orn[2] = orientation[2];
graphicsInstance.orn[3] = orientation[3];
}
void SimpleOpenGL2Renderer::writeSingleInstanceTransformToCPU(const double* position, const double* orientation, int srcIndex)
{
m_data->m_graphicsInstances[srcIndex].m_position[0] = position[0];
m_data->m_graphicsInstances[srcIndex].m_position[1] = position[1];
m_data->m_graphicsInstances[srcIndex].m_position[2] = position[2];
SimpleGL2Instance& graphicsInstance = *m_data->m_graphicsInstancesPool.getHandle(srcIndex);
graphicsInstance.m_position[0] = position[0];
graphicsInstance.m_position[1] = position[1];
graphicsInstance.m_position[2] = position[2];
m_data->m_graphicsInstances[srcIndex].orn[0] = orientation[0];
m_data->m_graphicsInstances[srcIndex].orn[1] = orientation[1];
m_data->m_graphicsInstances[srcIndex].orn[2] = orientation[2];
m_data->m_graphicsInstances[srcIndex].orn[3] = orientation[3];
graphicsInstance.orn[0] = orientation[0];
graphicsInstance.orn[1] = orientation[1];
graphicsInstance.orn[2] = orientation[2];
graphicsInstance.orn[3] = orientation[3];
}
void SimpleOpenGL2Renderer::writeTransforms()
{

2
examples/OpenGLWindow/SimpleOpenGL2Renderer.h
View File

@@ -32,7 +32,7 @@ public:
virtual void resize(int width, int height);
virtual void removeAllInstances();
virtual void removeGraphicsInstance(int instanceUid);
virtual void writeSingleInstanceColorToCPU(float* color, int srcIndex);
virtual void writeSingleInstanceColorToCPU(double* color, int srcIndex);