public void SetOptimizedBvh(OptimizedBvh bvh, ref IndexedVector3 scaling)
{
Debug.Assert(m_bvh == null);
Debug.Assert(m_ownsBvh == false);
m_bvh = bvh;
m_ownsBvh = false;
// update the scaling without rebuilding the bvh
if ((GetLocalScaling() - scaling).LengthSquared() > MathUtil.SIMD_EPSILON)
{
base.SetLocalScaling(ref scaling);
}
}
private void BuildOptimizedBvh()
{
if (m_ownsBvh)
{
m_bvh.Cleanup();
m_bvh = null;
}
///m_localAabbMin/m_localAabbMax is already re-calculated in btTriangleMeshShape. We could just scale aabb, but this needs some more work
//void* mem = btAlignedAlloc(sizeof(btOptimizedBvh),16);
m_bvh = new OptimizedBvh();
//rebuild the bvh...
m_bvh.Build(m_meshInterface, m_useQuantizedAabbCompression, ref m_localAabbMin, ref m_localAabbMax);
m_ownsBvh = true;
}
///optionally pass in a larger bvh aabb, used for quantization. This allows for deformations within this aabb
public BvhTriangleMeshShape(StridingMeshInterface meshInterface, bool useQuantizedAabbCompression, ref IndexedVector3 bvhAabbMin, ref IndexedVector3 bvhAabbMax, bool buildBvh)
: base(meshInterface)
{
m_bvh = null;
m_ownsBvh = false;
m_useQuantizedAabbCompression = useQuantizedAabbCompression;
m_shapeType = BroadphaseNativeTypes.TRIANGLE_MESH_SHAPE_PROXYTYPE;
#if !DISABLE_BVH
if (buildBvh)
{
m_bvh = new OptimizedBvh();
m_bvh.Build(meshInterface, m_useQuantizedAabbCompression, ref bvhAabbMin, ref bvhAabbMax);
m_ownsBvh = true;
}
#endif //DISABLE_BVH
}