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Use the add support for double and float triangle vertices. If it has a bad impact on performance, we can hide it behind an #ifdef for double precision vertex support.

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Fix btConvexTriangleMeshShape::calculatePrincipalAxisTransform
Both thanks to Ole.

Use our own union to extract a scalar value from an SSE intrinsic (instead of relying on MSVC-only m128_u32
Thanks to BlindSide
This commit is contained in:
erwin.coumans
2008-10-27 21:36:36 +00:00
parent 876009b053
commit 1ff6420ffb
4 changed files with 71 additions and 30 deletions
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26
src/BulletCollision/CollisionShapes/btOptimizedBvh.cpp
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@@ -319,19 +319,19 @@ void btOptimizedBvh::updateBvhNodes(btStridingMeshInterface* meshInterface,int f
{
int graphicsindex = indicestype==PHY_SHORT?((unsigned short*)gfxbase)[j]:gfxbase[j];
btScalar* graphicsbase = (btScalar*)(vertexbase+graphicsindex*stride);
#ifdef DEBUG_PATCH_COLORS
btVector3 mycolor = color[index&3];
graphicsbase[8] = mycolor.getX();
graphicsbase[9] = mycolor.getY();
graphicsbase[10] = mycolor.getZ();
#endif //DEBUG_PATCH_COLORS
triangleVerts[j] = btVector3(
graphicsbase[0]*meshScaling.getX(),
graphicsbase[1]*meshScaling.getY(),
graphicsbase[2]*meshScaling.getZ());
if (type == PHY_FLOAT)
{
float* graphicsbase = (float*)(vertexbase+graphicsindex*stride);
triangleVerts[j] = btVector3(
graphicsbase[0]*meshScaling.getX(),
graphicsbase[1]*meshScaling.getY(),
graphicsbase[2]*meshScaling.getZ());
}
else
{
double* graphicsbase = (double*)(vertexbase+graphicsindex*stride);
triangleVerts[j] = btVector3( btScalar(graphicsbase[0]*meshScaling.getX()), btScalar(graphicsbase[1]*meshScaling.getY()), btScalar(graphicsbase[2]*meshScaling.getZ()));
}
}