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allow larger amount of rigid bodies, dynamically increase b3Config limits

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avoid crashes in instancing renderer if instance maximum is exceeded.
This commit is contained in:
erwincoumans
2013-06-17 17:05:01 -07:00
parent 561a44e5d8
commit 9a92eecf10
6 changed files with 57 additions and 25 deletions
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21
Demos3/GpuDemos/rigidbody/GpuRigidBodyDemo.cpp
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@@ -108,6 +108,12 @@ void GpuRigidBodyDemo::initPhysics(const ConstructionInfo& ci)
m_data->m_copyTransformsToVBOKernel = b3OpenCLUtils::compileCLKernelFromString(m_clData->m_clContext,m_clData->m_clDevice,s_rigidBodyKernelString,"copyTransformsToVBOKernel",&errNum,rbProg);
b3Config config;
config.m_maxConvexBodies = b3Max(config.m_maxConvexBodies,ci.arraySizeX*ci.arraySizeY*ci.arraySizeZ+10);
config.m_maxConvexShapes = config.m_maxConvexBodies;
config.m_maxBroadphasePairs = 8*config.m_maxConvexBodies;
config.m_maxContactCapacity = config.m_maxBroadphasePairs;
b3GpuNarrowPhase* np = new b3GpuNarrowPhase(m_clData->m_clContext,m_clData->m_clDevice,m_clData->m_clQueue,config);
b3GpuSapBroadphase* bp = new b3GpuSapBroadphase(m_clData->m_clContext,m_clData->m_clDevice,m_clData->m_clQueue);
m_data->m_np = np;
@@ -157,7 +163,18 @@ void GpuRigidBodyDemo::clientMoveAndDisplay()
{
bool animate=true;
int numObjects= m_data->m_rigidBodyPipeline->getNumBodies();
//m_instancingRenderer->getInternalData()->m_totalNumInstances;
if (numObjects > m_instancingRenderer->getInstanceCapacity())
{
static bool once = true;
if (once)
{
once=false;
b3Assert(0);
b3Error("m_instancingRenderer out-of-memory\n");
}
numObjects = m_instancingRenderer->getInstanceCapacity();
}
b3Vector4* positions = 0;
if (animate && numObjects)
{
@@ -205,7 +222,9 @@ void GpuRigidBodyDemo::clientMoveAndDisplay()
GLint err = glGetError();
assert(err==GL_NO_ERROR);
GLuint vbo = m_instancingRenderer->getInternalData()->m_vbo;
int arraySizeInBytes = numObjects * (3)*sizeof(b3Vector4);
glBindBuffer(GL_ARRAY_BUFFER, vbo);
cl_bool blocking= CL_TRUE;
positions= (b3Vector4*)glMapBufferRange( GL_ARRAY_BUFFER,m_instancingRenderer->getMaxShapeCapacity(),arraySizeInBytes, GL_MAP_WRITE_BIT );//GL_READ_WRITE);//GL_WRITE_ONLY