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Restructuring loops...

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This commit is contained in:
David Williams 2015-05-14 10:52:07 +02:00
parent 13fc8c5ba9
commit 5974a1de9b
2 changed files with 14 additions and 12 deletions
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2
include/PolyVox/MarchingCubesSurfaceExtractor.h
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@ -160,7 +160,7 @@ namespace PolyVox
private: private:
//Compute the cell bitmask for a particular slice in z. //Compute the cell bitmask for a particular slice in z.
template<bool isPrevZAvail> template<bool isPrevZAvail>
void computeBitmaskForSlice(Array3DUint8& pBitmask); void computeBitmaskForSlice(Array3DUint8& pBitmask, uint32_t uSlice);
//Use the cell bitmasks to generate all the vertices needed for that slice //Use the cell bitmasks to generate all the vertices needed for that slice
void generateVerticesForSlice(const Array3DUint8& pBitmask, void generateVerticesForSlice(const Array3DUint8& pBitmask,

24
include/PolyVox/MarchingCubesSurfaceExtractor.inl
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@ -69,7 +69,11 @@ namespace PolyVox
m_regSliceCurrent = m_regSlicePrevious; m_regSliceCurrent = m_regSlicePrevious;
//Process the first slice (previous slice not available) //Process the first slice (previous slice not available)
computeBitmaskForSlice<false>(pBitmask); computeBitmaskForSlice<false>(pBitmask, 0);
for (int32_t uSlice = 1; uSlice <= m_regSizeInVoxels.getUpperZ() - m_regSizeInVoxels.getLowerZ(); uSlice++)
{
computeBitmaskForSlice<true>(pBitmask, uSlice);
}
generateVerticesForSlice(pBitmask, pIndicesX, pIndicesY, pIndicesZ); generateVerticesForSlice(pBitmask, pIndicesX, pIndicesY, pIndicesZ);
@ -78,9 +82,7 @@ namespace PolyVox
//Process the other slices (previous slice is available) //Process the other slices (previous slice is available)
for(int32_t uSlice = 1; uSlice <= m_regSizeInVoxels.getUpperZ() - m_regSizeInVoxels.getLowerZ(); uSlice++) for(int32_t uSlice = 1; uSlice <= m_regSizeInVoxels.getUpperZ() - m_regSizeInVoxels.getLowerZ(); uSlice++)
{ {
computeBitmaskForSlice<true>(pBitmask);
generateVerticesForSlice(pBitmask, pIndicesX, pIndicesY, pIndicesZ); generateVerticesForSlice(pBitmask, pIndicesX, pIndicesY, pIndicesZ);
generateIndicesForSlice(pBitmask, pIndicesX, pIndicesY, pIndicesZ); generateIndicesForSlice(pBitmask, pIndicesX, pIndicesY, pIndicesZ);
@ -98,19 +100,19 @@ namespace PolyVox
template<typename VolumeType, typename MeshType, typename ControllerType> template<typename VolumeType, typename MeshType, typename ControllerType>
template<bool isPrevZAvail> template<bool isPrevZAvail>
void MarchingCubesSurfaceExtractor<VolumeType, MeshType, ControllerType>::computeBitmaskForSlice(Array3DUint8& pBitmask) void MarchingCubesSurfaceExtractor<VolumeType, MeshType, ControllerType>::computeBitmaskForSlice(Array3DUint8& pBitmask, uint32_t uSlice)
{ {
const int32_t iMaxXVolSpace = m_regSliceCurrent.getUpperX(); const int32_t iMaxXVolSpace = m_regSizeInVoxels.getUpperX();
const int32_t iMaxYVolSpace = m_regSliceCurrent.getUpperY(); const int32_t iMaxYVolSpace = m_regSizeInVoxels.getUpperY();
//Process the lower left corner //Process the lower left corner
int32_t iYVolSpace = m_regSliceCurrent.getLowerY(); int32_t iYVolSpace = m_regSizeInVoxels.getLowerY();
int32_t iXVolSpace = m_regSliceCurrent.getLowerX(); int32_t iXVolSpace = m_regSizeInVoxels.getLowerX();
int32_t iZVolSpace = m_regSliceCurrent.getLowerZ(); int32_t iZVolSpace = m_regSizeInVoxels.getLowerZ() + uSlice;
uint32_t uXRegSpace = iXVolSpace - m_regSizeInVoxels.getLowerX(); uint32_t uXRegSpace = iXVolSpace - m_regSizeInVoxels.getLowerX();
uint32_t uYRegSpace = iYVolSpace - m_regSizeInVoxels.getLowerY(); uint32_t uYRegSpace = iYVolSpace - m_regSizeInVoxels.getLowerY();
uint32_t uZRegSpace = iZVolSpace - m_regSizeInVoxels.getLowerZ(); uint32_t uZRegSpace = uSlice;
//Process all remaining elemnents of the slice. In this case, previous x and y values are always available //Process all remaining elemnents of the slice. In this case, previous x and y values are always available
for(iYVolSpace = m_regSliceCurrent.getLowerY(); iYVolSpace <= iMaxYVolSpace; iYVolSpace++) for(iYVolSpace = m_regSliceCurrent.getLowerY(); iYVolSpace <= iMaxYVolSpace; iYVolSpace++)