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fix OpenCL kernel: NVIDIA crashes in clBuildProgram and AMD reports an error 'irreducable flow detected" ?!?

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ray-convex works on GPU
This commit is contained in:
erwin coumans 2013-06-20 11:50:19 -07:00
parent 330bf3ea09
commit 92f2f330df
2 changed files with 28 additions and 22 deletions
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15
src/Bullet3OpenCL/Raycast/kernels/rayCastKernels.cl
View File

@ -171,11 +171,12 @@ bool rayConvex(float4 rayFromLocal, float4 rayToLocal, int numFaces, int faceOff
{
rayFromLocal.w = 0.f;
rayToLocal.w = 0.f;
bool result = true;
float exitFraction = *hitFraction;
float enterFraction = -0.1f;
float4 curHitNormal = (float4)(0,0,0,0);
for (int i=0;i<numFaces;i++)
for (int i=0;i<numFaces && result;i++)
{
b3GpuFace face = faces[faceOffset+i];
float fromPlaneDist = dot(rayFromLocal,face.m_plane)+face.m_plane.w;
@ -203,19 +204,21 @@ bool rayConvex(float4 rayFromLocal, float4 rayToLocal, int numFaces, int faceOff
}
} else
{
return false;
result = false;
}
}
if (exitFraction <= enterFraction)
return false;
result = false;
}
if (enterFraction < 0.f)
return false;
result = result && (enterFraction < 0.f);
if (result)
{
*hitFraction = enterFraction;
*hitNormal = curHitNormal;
return true;
}
return result;
}

15
src/Bullet3OpenCL/Raycast/kernels/rayCastKernels.h
View File

@ -173,11 +173,12 @@ static const char* rayCastKernelCL= \
"{\n"
" rayFromLocal.w = 0.f;\n"
" rayToLocal.w = 0.f;\n"
" bool result = true;\n"
" \n"
" float exitFraction = *hitFraction;\n"
" float enterFraction = -0.1f;\n"
" float4 curHitNormal = (float4)(0,0,0,0);\n"
" for (int i=0;i<numFaces;i++)\n"
" for (int i=0;i<numFaces && result;i++)\n"
" {\n"
" b3GpuFace face = faces[faceOffset+i];\n"
" float fromPlaneDist = dot(rayFromLocal,face.m_plane)+face.m_plane.w;\n"
@ -205,19 +206,21 @@ static const char* rayCastKernelCL= \
" }\n"
" } else\n"
" {\n"
" return false;\n"
" result = false;\n"
" }\n"
" }\n"
" if (exitFraction <= enterFraction)\n"
" return false;\n"
" result = false;\n"
" }\n"
" \n"
" if (enterFraction < 0.f)\n"
" return false;\n"
" result = result && (enterFraction < 0.f);\n"
" \n"
" if (result)\n"
" { \n"
" *hitFraction = enterFraction;\n"
" *hitNormal = curHitNormal;\n"
" return true;\n"
" }\n"
" return result;\n"
"}\n"
"\n"
"\n"