Optimising SurfaceExtractor.
This commit is contained in:
David Williams
parent
47291c59fc
commit
64318fb546
@ -69,6 +69,14 @@ namespace PolyVox
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uint8_t v011;
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uint8_t v011;
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uint8_t v111;
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uint8_t v111;
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uint16_t uXVolSpace;
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uint16_t uYVolSpace;
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uint16_t uZVolSpace;
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uint16_t uXRegSpace;
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uint16_t uYRegSpace;
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uint16_t uZRegSpace;
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inline uint32_t getIndex(uint32_t x, uint32_t y)
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inline uint32_t getIndex(uint32_t x, uint32_t y)
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{
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{
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return x + (y * (m_uRegionWidth+2));
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return x + (y * (m_uRegionWidth+2));
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@ -86,7 +94,8 @@ namespace PolyVox
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//void extractSurfaceForRegionLevel0(Volume<uint8_t>* volumeData, Region region, IndexedSurfacePatch* m_ispCurrent);
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//void extractSurfaceForRegionLevel0(Volume<uint8_t>* volumeData, Region region, IndexedSurfacePatch* m_ispCurrent);
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void extractSurfaceImpl(Region region);
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void extractSurfaceImpl(Region region);
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uint32_t computeBitmaskForSlice();
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uint32_t computeBitmaskForSlice(bool bIsFirstSlice);
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uint8_t computeBitmaskForCell(bool isPrevXAvail, bool isPrevYAvail, bool isPrevZAvail, uint8_t uLodLevel);
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void generateIndicesForSlice();
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void generateIndicesForSlice();
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void generateVerticesForSlice();
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void generateVerticesForSlice();
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};
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};
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@ -307,10 +307,7 @@ namespace PolyVox
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//When generating the mesh for a region we actually look outside it in the
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//When generating the mesh for a region we actually look outside it in the
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// back, bottom, right direction. Protect against access violations by cropping region here
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// back, bottom, right direction. Protect against access violations by cropping region here
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Region regVolume = m_volData.getEnclosingRegion();
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Region regVolume = m_volData.getEnclosingRegion();
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if(m_uLodLevel > 0)
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regVolume.setUpperCorner(regVolume.getUpperCorner() - Vector3DInt32(2*m_uStepSize-1,2*m_uStepSize-1,2*m_uStepSize-1));
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{
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regVolume.setUpperCorner(regVolume.getUpperCorner() - Vector3DInt32(2*m_uStepSize-1,2*m_uStepSize-1,2*m_uStepSize-1));
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}
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region.cropTo(regVolume);
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region.cropTo(regVolume);
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//m_v3dRegionOffset from volume corner
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//m_v3dRegionOffset from volume corner
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@ -332,7 +329,7 @@ namespace PolyVox
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for(uint32_t uSlice = 0; ((uSlice <= region.depth()) && (uSlice + m_v3dRegionOffset.getZ() <= regVolume.getUpperCorner().getZ())); uSlice += m_uStepSize)
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for(uint32_t uSlice = 0; ((uSlice <= region.depth()) && (uSlice + m_v3dRegionOffset.getZ() <= regVolume.getUpperCorner().getZ())); uSlice += m_uStepSize)
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{
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{
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uNoOfNonEmptyCellsForSlice1 = computeBitmaskForSlice();
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uNoOfNonEmptyCellsForSlice1 = computeBitmaskForSlice(!isFirstSliceDone);
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if(uNoOfNonEmptyCellsForSlice1 != 0)
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if(uNoOfNonEmptyCellsForSlice1 != 0)
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{
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{
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@ -369,382 +366,105 @@ namespace PolyVox
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delete[] m_pCurrentVertexIndicesZ;
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delete[] m_pCurrentVertexIndicesZ;
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}
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}
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uint32_t SurfaceExtractor::computeBitmaskForSlice()
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uint32_t SurfaceExtractor::computeBitmaskForSlice(bool bIsFirstSlice)
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{
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{
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uint32_t uNoOfNonEmptyCells = 0;
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uint32_t uNoOfNonEmptyCells = 0;
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const uint16_t uMaxXVolSpace = regSlice1.getUpperCorner().getX();
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const uint16_t uMaxXVolSpace = regSlice1.getUpperCorner().getX();
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const uint16_t uMaxYVolSpace = regSlice1.getUpperCorner().getY();
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const uint16_t uMaxYVolSpace = regSlice1.getUpperCorner().getY();
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const uint16_t uZVolSpace = regSlice1.getLowerCorner().getZ();
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uZVolSpace = regSlice1.getLowerCorner().getZ();
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const uint16_t uZRegSpace = uZVolSpace - m_v3dRegionOffset.getZ();
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uZRegSpace = uZVolSpace - m_v3dRegionOffset.getZ();
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//Iterate over each cell in the region
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//Iterate over each cell in the region
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for(uint16_t uYVolSpace = regSlice1.getLowerCorner().getY(); uYVolSpace <= uMaxYVolSpace; uYVolSpace += m_uStepSize)
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/*for(*/uYVolSpace = regSlice1.getLowerCorner().getY();/* uYVolSpace <= uMaxYVolSpace; uYVolSpace += m_uStepSize)*/
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{
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{
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for(uint16_t uXVolSpace = regSlice1.getLowerCorner().getX(); uXVolSpace <= uMaxXVolSpace; uXVolSpace += m_uStepSize)
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/*for(*/uXVolSpace = regSlice1.getLowerCorner().getX();/* uXVolSpace <= uMaxXVolSpace; uXVolSpace += m_uStepSize)*/
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{
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{
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const uint16_t uXRegSpace = uXVolSpace - m_v3dRegionOffset.getX();
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uXRegSpace = uXVolSpace - m_v3dRegionOffset.getX();
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const uint16_t uYRegSpace = uYVolSpace - m_v3dRegionOffset.getY();
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uYRegSpace = uYVolSpace - m_v3dRegionOffset.getY();
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//Current position
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//Current position
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m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace);
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m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace);
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//Determine the index into the edge table which tells us which vertices are inside of the surface
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//Determine the index into the edge table which tells us which vertices are inside of the surface
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uint8_t iCubeIndex = 0;
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uint8_t iCubeIndex = computeBitmaskForCell(false, false, !bIsFirstSlice, m_uLodLevel);
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if((uXVolSpace < m_sampVolume.getVolume().getWidth()-m_uStepSize) &&
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//Save the bitmask
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(uYVolSpace < m_sampVolume.getVolume().getHeight()-m_uStepSize) &&
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m_pCurrentBitmask[getIndex(uXRegSpace,uYVolSpace- m_v3dRegionOffset.getY())] = iCubeIndex;
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(uZVolSpace < m_sampVolume.getVolume().getDepth()-m_uStepSize))
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if(edgeTable[iCubeIndex] != 0)
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{
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{
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bool isPrevXAvail = uXRegSpace > 0;
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++uNoOfNonEmptyCells;
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bool isPrevYAvail = uYRegSpace > 0;
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bool isPrevZAvail = uZRegSpace > 0;
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if(isPrevZAvail)
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{
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if(isPrevYAvail)
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{
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if(isPrevXAvail)
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{
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if(m_uLodLevel == 0)
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{
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v111 = m_sampVolume.peekVoxel1px1py1pz();
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}
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else
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{
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
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v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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}
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//z
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uint8_t iPreviousCubeIndexZ = m_pPreviousBitmask[getIndex(uXRegSpace,uYRegSpace)];
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iPreviousCubeIndexZ >>= 4;
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//y
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uint8_t iPreviousCubeIndexY = m_pCurrentBitmask[getIndex(uXRegSpace,uYRegSpace-m_uStepSize)];
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iPreviousCubeIndexY &= 192; //192 = 128 + 64
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iPreviousCubeIndexY >>= 2;
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//x
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uint8_t iPreviousCubeIndexX = m_pCurrentBitmask[getIndex(uXRegSpace-m_uStepSize,uYRegSpace)];
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iPreviousCubeIndexX &= 128;
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iPreviousCubeIndexX >>= 1;
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iCubeIndex = iPreviousCubeIndexX | iPreviousCubeIndexY | iPreviousCubeIndexZ;
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if (v111 == 0) iCubeIndex |= 128;
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}
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else //previous X not available
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{
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if(m_uLodLevel == 0)
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{
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v011 = m_sampVolume.peekVoxel0px1py1pz();
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v111 = m_sampVolume.peekVoxel1px1py1pz();
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}
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else
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{
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m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
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v011 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
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v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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}
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//z
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uint8_t iPreviousCubeIndexZ = m_pPreviousBitmask[getIndex(uXRegSpace,uYRegSpace)];
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iPreviousCubeIndexZ >>= 4;
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//y
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uint8_t iPreviousCubeIndexY = m_pCurrentBitmask[getIndex(uXRegSpace,uYRegSpace-m_uStepSize)];
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iPreviousCubeIndexY &= 192; //192 = 128 + 64
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iPreviousCubeIndexY >>= 2;
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iCubeIndex = iPreviousCubeIndexY | iPreviousCubeIndexZ;
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if (v011 == 0) iCubeIndex |= 64;
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if (v111 == 0) iCubeIndex |= 128;
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}
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}
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else //previous Y not available
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{
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if(isPrevXAvail)
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{
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if(m_uLodLevel == 0)
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{
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v101 = m_sampVolume.peekVoxel1px0py1pz();
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v111 = m_sampVolume.peekVoxel1px1py1pz();
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}
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else
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{
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace+m_uStepSize);
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v101 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
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v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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}
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//z
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uint8_t iPreviousCubeIndexZ = m_pPreviousBitmask[getIndex(uXRegSpace,uYRegSpace)];
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iPreviousCubeIndexZ >>= 4;
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//x
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uint8_t iPreviousCubeIndexX = m_pCurrentBitmask[getIndex(uXRegSpace-m_uStepSize,uYRegSpace)];
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iPreviousCubeIndexX &= 160; //160 = 128+32
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iPreviousCubeIndexX >>= 1;
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iCubeIndex = iPreviousCubeIndexX | iPreviousCubeIndexZ;
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if (v101 == 0) iCubeIndex |= 32;
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if (v111 == 0) iCubeIndex |= 128;
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}
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else //previous X not available
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{
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if(m_uLodLevel == 0)
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{
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v001 = m_sampVolume.peekVoxel0px0py1pz();
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v101 = m_sampVolume.peekVoxel1px0py1pz();
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v011 = m_sampVolume.peekVoxel0px1py1pz();
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v111 = m_sampVolume.peekVoxel1px1py1pz();
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}
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else
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{
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m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace+m_uStepSize);
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v001 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace+m_uStepSize);
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v101 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
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v011 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
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v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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}
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//z
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uint8_t iPreviousCubeIndexZ = m_pPreviousBitmask[getIndex(uXRegSpace,uYRegSpace)];
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iCubeIndex = iPreviousCubeIndexZ >> 4;
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if (v001 == 0) iCubeIndex |= 16;
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if (v101 == 0) iCubeIndex |= 32;
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if (v011 == 0) iCubeIndex |= 64;
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if (v111 == 0) iCubeIndex |= 128;
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}
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}
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}
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else //previous Z not available
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{
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if(isPrevYAvail)
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{
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if(isPrevXAvail)
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{
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if(m_uLodLevel == 0)
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{
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v110 = m_sampVolume.peekVoxel1px1py0pz();
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v111 = m_sampVolume.peekVoxel1px1py1pz();
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}
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else
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{
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace);
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v110 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
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v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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}
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//y
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uint8_t iPreviousCubeIndexY = m_pCurrentBitmask[getIndex(uXRegSpace,uYRegSpace-m_uStepSize)];
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iPreviousCubeIndexY &= 204; //204 = 128+64+8+4
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iPreviousCubeIndexY >>= 2;
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//x
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uint8_t iPreviousCubeIndexX = m_pCurrentBitmask[getIndex(uXRegSpace-m_uStepSize,uYRegSpace)];
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iPreviousCubeIndexX &= 170; //170 = 128+32+8+2
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iPreviousCubeIndexX >>= 1;
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iCubeIndex = iPreviousCubeIndexX | iPreviousCubeIndexY;
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if (v110 == 0) iCubeIndex |= 8;
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if (v111 == 0) iCubeIndex |= 128;
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}
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else //previous X not available
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{
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if(m_uLodLevel == 0)
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{
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v010 = m_sampVolume.peekVoxel0px1py0pz();
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v110 = m_sampVolume.peekVoxel1px1py0pz();
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v011 = m_sampVolume.peekVoxel0px1py1pz();
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v111 = m_sampVolume.peekVoxel1px1py1pz();
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}
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else
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{
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m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace);
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v010 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace);
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v110 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
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v011 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
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v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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}
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//y
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uint8_t iPreviousCubeIndexY = m_pCurrentBitmask[getIndex(uXRegSpace,uYRegSpace-m_uStepSize)];
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iPreviousCubeIndexY &= 204; //204 = 128+64+8+4
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iPreviousCubeIndexY >>= 2;
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iCubeIndex = iPreviousCubeIndexY;
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if (v010 == 0) iCubeIndex |= 4;
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if (v110 == 0) iCubeIndex |= 8;
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if (v011 == 0) iCubeIndex |= 64;
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if (v111 == 0) iCubeIndex |= 128;
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}
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}
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else //previous Y not available
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{
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if(isPrevXAvail)
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{
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if(m_uLodLevel == 0)
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{
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v100 = m_sampVolume.peekVoxel1px0py0pz();
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v110 = m_sampVolume.peekVoxel1px1py0pz();
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v101 = m_sampVolume.peekVoxel1px0py1pz();
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v111 = m_sampVolume.peekVoxel1px1py1pz();
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}
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else
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{
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m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace);
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v100 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
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|
||||||
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace);
|
|
||||||
v110 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace+m_uStepSize);
|
|
||||||
v101 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
|
||||||
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
}
|
|
||||||
|
|
||||||
//x
|
|
||||||
uint8_t iPreviousCubeIndexX = m_pCurrentBitmask[getIndex(uXRegSpace-m_uStepSize,uYRegSpace)];
|
|
||||||
iPreviousCubeIndexX &= 170; //170 = 128+32+8+2
|
|
||||||
iPreviousCubeIndexX >>= 1;
|
|
||||||
|
|
||||||
iCubeIndex = iPreviousCubeIndexX;
|
|
||||||
|
|
||||||
if (v100 == 0) iCubeIndex |= 2;
|
|
||||||
if (v110 == 0) iCubeIndex |= 8;
|
|
||||||
if (v101 == 0) iCubeIndex |= 32;
|
|
||||||
if (v111 == 0) iCubeIndex |= 128;
|
|
||||||
}
|
|
||||||
else //previous X not available
|
|
||||||
{
|
|
||||||
if(m_uLodLevel == 0)
|
|
||||||
{
|
|
||||||
v000 = m_sampVolume.getVoxel();
|
|
||||||
v100 = m_sampVolume.peekVoxel1px0py0pz();
|
|
||||||
v010 = m_sampVolume.peekVoxel0px1py0pz();
|
|
||||||
v110 = m_sampVolume.peekVoxel1px1py0pz();
|
|
||||||
|
|
||||||
v001 = m_sampVolume.peekVoxel0px0py1pz();
|
|
||||||
v101 = m_sampVolume.peekVoxel1px0py1pz();
|
|
||||||
v011 = m_sampVolume.peekVoxel0px1py1pz();
|
|
||||||
v111 = m_sampVolume.peekVoxel1px1py1pz();
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace);
|
|
||||||
v000 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace);
|
|
||||||
v100 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace);
|
|
||||||
v010 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace);
|
|
||||||
v110 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
|
|
||||||
m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace+m_uStepSize);
|
|
||||||
v001 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace+m_uStepSize);
|
|
||||||
v101 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
|
||||||
v011 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
|
||||||
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
|
||||||
}
|
|
||||||
|
|
||||||
if (v000 == 0) iCubeIndex |= 1;
|
|
||||||
if (v100 == 0) iCubeIndex |= 2;
|
|
||||||
if (v010 == 0) iCubeIndex |= 4;
|
|
||||||
if (v110 == 0) iCubeIndex |= 8;
|
|
||||||
if (v001 == 0) iCubeIndex |= 16;
|
|
||||||
if (v101 == 0) iCubeIndex |= 32;
|
|
||||||
if (v011 == 0) iCubeIndex |= 64;
|
|
||||||
if (v111 == 0) iCubeIndex |= 128;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
else
|
|
||||||
|
}//For each cell
|
||||||
|
}
|
||||||
|
|
||||||
|
//Iterate over each cell in the region
|
||||||
|
for(uYVolSpace = regSlice1.getLowerCorner().getY() + m_uStepSize; uYVolSpace <= uMaxYVolSpace; uYVolSpace += m_uStepSize)
|
||||||
|
{
|
||||||
|
/*for(*/uXVolSpace = regSlice1.getLowerCorner().getX();/* uXVolSpace <= uMaxXVolSpace; uXVolSpace += m_uStepSize)*/
|
||||||
|
{
|
||||||
|
uXRegSpace = uXVolSpace - m_v3dRegionOffset.getX();
|
||||||
|
uYRegSpace = uYVolSpace - m_v3dRegionOffset.getY();
|
||||||
|
|
||||||
|
//Current position
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace);
|
||||||
|
|
||||||
|
//Determine the index into the edge table which tells us which vertices are inside of the surface
|
||||||
|
uint8_t iCubeIndex = computeBitmaskForCell(false, true, !bIsFirstSlice, m_uLodLevel);
|
||||||
|
|
||||||
|
//Save the bitmask
|
||||||
|
m_pCurrentBitmask[getIndex(uXRegSpace,uYVolSpace- m_v3dRegionOffset.getY())] = iCubeIndex;
|
||||||
|
|
||||||
|
if(edgeTable[iCubeIndex] != 0)
|
||||||
{
|
{
|
||||||
if(m_uLodLevel == 0)
|
++uNoOfNonEmptyCells;
|
||||||
{
|
|
||||||
v000 = m_sampVolume.getVoxel();
|
|
||||||
v100 = m_sampVolume.getVolume().getVoxelAtWithBoundCheck(uXVolSpace+1, uYVolSpace , uZVolSpace );
|
|
||||||
v010 = m_sampVolume.getVolume().getVoxelAtWithBoundCheck(uXVolSpace , uYVolSpace+1, uZVolSpace );
|
|
||||||
v110 = m_sampVolume.getVolume().getVoxelAtWithBoundCheck(uXVolSpace+1, uYVolSpace+1, uZVolSpace );
|
|
||||||
|
|
||||||
v001 = m_sampVolume.getVolume().getVoxelAtWithBoundCheck(uXVolSpace , uYVolSpace , uZVolSpace+1);
|
|
||||||
v101 = m_sampVolume.getVolume().getVoxelAtWithBoundCheck(uXVolSpace+1, uYVolSpace , uZVolSpace+1);
|
|
||||||
v011 = m_sampVolume.getVolume().getVoxelAtWithBoundCheck(uXVolSpace , uYVolSpace+1, uZVolSpace+1);
|
|
||||||
v111 = m_sampVolume.getVolume().getVoxelAtWithBoundCheck(uXVolSpace+1, uYVolSpace+1, uZVolSpace+1);
|
|
||||||
|
|
||||||
if (v000 == 0) iCubeIndex |= 1;
|
|
||||||
if (v100 == 0) iCubeIndex |= 2;
|
|
||||||
if (v010 == 0) iCubeIndex |= 4;
|
|
||||||
if (v110 == 0) iCubeIndex |= 8;
|
|
||||||
if (v001 == 0) iCubeIndex |= 16;
|
|
||||||
if (v101 == 0) iCubeIndex |= 32;
|
|
||||||
if (v011 == 0) iCubeIndex |= 64;
|
|
||||||
if (v111 == 0) iCubeIndex |= 128;
|
|
||||||
}
|
|
||||||
else
|
|
||||||
{
|
|
||||||
v000 = m_sampVolume.getSubSampledVoxelWithBoundsCheck(m_uLodLevel);
|
|
||||||
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+1, uYVolSpace , uZVolSpace );
|
|
||||||
v100 = m_sampVolume.getSubSampledVoxelWithBoundsCheck(m_uLodLevel);
|
|
||||||
|
|
||||||
m_sampVolume.setPosition(uXVolSpace , uYVolSpace+1, uZVolSpace );
|
|
||||||
v010 = m_sampVolume.getSubSampledVoxelWithBoundsCheck(m_uLodLevel);
|
|
||||||
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+1, uYVolSpace+1, uZVolSpace );
|
|
||||||
v110 = m_sampVolume.getSubSampledVoxelWithBoundsCheck(m_uLodLevel);
|
|
||||||
|
|
||||||
|
|
||||||
m_sampVolume.setPosition(uXVolSpace , uYVolSpace , uZVolSpace+1);
|
|
||||||
v001 = m_sampVolume.getSubSampledVoxelWithBoundsCheck(m_uLodLevel);
|
|
||||||
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+1, uYVolSpace , uZVolSpace+1);
|
|
||||||
v101 = m_sampVolume.getSubSampledVoxelWithBoundsCheck(m_uLodLevel);
|
|
||||||
|
|
||||||
m_sampVolume.setPosition(uXVolSpace , uYVolSpace+1, uZVolSpace+1);
|
|
||||||
v011 = m_sampVolume.getSubSampledVoxelWithBoundsCheck(m_uLodLevel);
|
|
||||||
|
|
||||||
m_sampVolume.setPosition(uXVolSpace+1, uYVolSpace+1, uZVolSpace+1);
|
|
||||||
v111 = m_sampVolume.getSubSampledVoxelWithBoundsCheck(m_uLodLevel);
|
|
||||||
|
|
||||||
if (v000 == 0) iCubeIndex |= 1;
|
|
||||||
if (v100 == 0) iCubeIndex |= 2;
|
|
||||||
if (v010 == 0) iCubeIndex |= 4;
|
|
||||||
if (v110 == 0) iCubeIndex |= 8;
|
|
||||||
if (v001 == 0) iCubeIndex |= 16;
|
|
||||||
if (v101 == 0) iCubeIndex |= 32;
|
|
||||||
if (v011 == 0) iCubeIndex |= 64;
|
|
||||||
if (v111 == 0) iCubeIndex |= 128;
|
|
||||||
}
|
|
||||||
}
|
}
|
||||||
|
|
||||||
|
}//For each cell
|
||||||
|
}
|
||||||
|
|
||||||
|
//Iterate over each cell in the region
|
||||||
|
/*for(*/uYVolSpace = regSlice1.getLowerCorner().getY();/* uYVolSpace <= uMaxYVolSpace; uYVolSpace += m_uStepSize)*/
|
||||||
|
{
|
||||||
|
for(uXVolSpace = regSlice1.getLowerCorner().getX() + m_uStepSize; uXVolSpace <= uMaxXVolSpace; uXVolSpace += m_uStepSize)
|
||||||
|
{
|
||||||
|
uXRegSpace = uXVolSpace - m_v3dRegionOffset.getX();
|
||||||
|
uYRegSpace = uYVolSpace - m_v3dRegionOffset.getY();
|
||||||
|
|
||||||
|
//Current position
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace);
|
||||||
|
|
||||||
|
//Determine the index into the edge table which tells us which vertices are inside of the surface
|
||||||
|
uint8_t iCubeIndex = computeBitmaskForCell(true, false, !bIsFirstSlice, m_uLodLevel);
|
||||||
|
|
||||||
|
//Save the bitmask
|
||||||
|
m_pCurrentBitmask[getIndex(uXRegSpace,uYVolSpace- m_v3dRegionOffset.getY())] = iCubeIndex;
|
||||||
|
|
||||||
|
if(edgeTable[iCubeIndex] != 0)
|
||||||
|
{
|
||||||
|
++uNoOfNonEmptyCells;
|
||||||
|
}
|
||||||
|
|
||||||
|
}//For each cell
|
||||||
|
}
|
||||||
|
|
||||||
|
//Iterate over each cell in the region
|
||||||
|
for(uYVolSpace = regSlice1.getLowerCorner().getY() + m_uStepSize; uYVolSpace <= uMaxYVolSpace; uYVolSpace += m_uStepSize)
|
||||||
|
{
|
||||||
|
for(uXVolSpace = regSlice1.getLowerCorner().getX() + m_uStepSize; uXVolSpace <= uMaxXVolSpace; uXVolSpace += m_uStepSize)
|
||||||
|
{
|
||||||
|
uXRegSpace = uXVolSpace - m_v3dRegionOffset.getX();
|
||||||
|
uYRegSpace = uYVolSpace - m_v3dRegionOffset.getY();
|
||||||
|
|
||||||
|
//Current position
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace);
|
||||||
|
|
||||||
|
//Determine the index into the edge table which tells us which vertices are inside of the surface
|
||||||
|
uint8_t iCubeIndex = computeBitmaskForCell(true, true, !bIsFirstSlice, m_uLodLevel);
|
||||||
|
|
||||||
//Save the bitmask
|
//Save the bitmask
|
||||||
m_pCurrentBitmask[getIndex(uXRegSpace,uYVolSpace- m_v3dRegionOffset.getY())] = iCubeIndex;
|
m_pCurrentBitmask[getIndex(uXRegSpace,uYVolSpace- m_v3dRegionOffset.getY())] = iCubeIndex;
|
||||||
|
|
||||||
@ -759,6 +479,297 @@ namespace PolyVox
|
|||||||
return uNoOfNonEmptyCells;
|
return uNoOfNonEmptyCells;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
uint8_t SurfaceExtractor::computeBitmaskForCell(bool isPrevXAvail, bool isPrevYAvail, bool isPrevZAvail, uint8_t uLodLevel)
|
||||||
|
{
|
||||||
|
uint8_t iCubeIndex = 0;
|
||||||
|
|
||||||
|
if(isPrevZAvail)
|
||||||
|
{
|
||||||
|
if(isPrevYAvail)
|
||||||
|
{
|
||||||
|
if(isPrevXAvail)
|
||||||
|
{
|
||||||
|
if(m_uLodLevel == 0)
|
||||||
|
{
|
||||||
|
v111 = m_sampVolume.peekVoxel1px1py1pz();
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
}
|
||||||
|
|
||||||
|
//z
|
||||||
|
uint8_t iPreviousCubeIndexZ = m_pPreviousBitmask[getIndex(uXRegSpace,uYRegSpace)];
|
||||||
|
iPreviousCubeIndexZ >>= 4;
|
||||||
|
|
||||||
|
//y
|
||||||
|
uint8_t iPreviousCubeIndexY = m_pCurrentBitmask[getIndex(uXRegSpace,uYRegSpace-m_uStepSize)];
|
||||||
|
iPreviousCubeIndexY &= 192; //192 = 128 + 64
|
||||||
|
iPreviousCubeIndexY >>= 2;
|
||||||
|
|
||||||
|
//x
|
||||||
|
uint8_t iPreviousCubeIndexX = m_pCurrentBitmask[getIndex(uXRegSpace-m_uStepSize,uYRegSpace)];
|
||||||
|
iPreviousCubeIndexX &= 128;
|
||||||
|
iPreviousCubeIndexX >>= 1;
|
||||||
|
|
||||||
|
iCubeIndex = iPreviousCubeIndexX | iPreviousCubeIndexY | iPreviousCubeIndexZ;
|
||||||
|
|
||||||
|
if (v111 == 0) iCubeIndex |= 128;
|
||||||
|
}
|
||||||
|
else //previous X not available
|
||||||
|
{
|
||||||
|
if(m_uLodLevel == 0)
|
||||||
|
{
|
||||||
|
v011 = m_sampVolume.peekVoxel0px1py1pz();
|
||||||
|
v111 = m_sampVolume.peekVoxel1px1py1pz();
|
||||||
|
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v011 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
}
|
||||||
|
|
||||||
|
//z
|
||||||
|
uint8_t iPreviousCubeIndexZ = m_pPreviousBitmask[getIndex(uXRegSpace,uYRegSpace)];
|
||||||
|
iPreviousCubeIndexZ >>= 4;
|
||||||
|
|
||||||
|
//y
|
||||||
|
uint8_t iPreviousCubeIndexY = m_pCurrentBitmask[getIndex(uXRegSpace,uYRegSpace-m_uStepSize)];
|
||||||
|
iPreviousCubeIndexY &= 192; //192 = 128 + 64
|
||||||
|
iPreviousCubeIndexY >>= 2;
|
||||||
|
|
||||||
|
iCubeIndex = iPreviousCubeIndexY | iPreviousCubeIndexZ;
|
||||||
|
|
||||||
|
if (v011 == 0) iCubeIndex |= 64;
|
||||||
|
if (v111 == 0) iCubeIndex |= 128;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else //previous Y not available
|
||||||
|
{
|
||||||
|
if(isPrevXAvail)
|
||||||
|
{
|
||||||
|
if(m_uLodLevel == 0)
|
||||||
|
{
|
||||||
|
v101 = m_sampVolume.peekVoxel1px0py1pz();
|
||||||
|
v111 = m_sampVolume.peekVoxel1px1py1pz();
|
||||||
|
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace+m_uStepSize);
|
||||||
|
v101 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
}
|
||||||
|
|
||||||
|
//z
|
||||||
|
uint8_t iPreviousCubeIndexZ = m_pPreviousBitmask[getIndex(uXRegSpace,uYRegSpace)];
|
||||||
|
iPreviousCubeIndexZ >>= 4;
|
||||||
|
|
||||||
|
//x
|
||||||
|
uint8_t iPreviousCubeIndexX = m_pCurrentBitmask[getIndex(uXRegSpace-m_uStepSize,uYRegSpace)];
|
||||||
|
iPreviousCubeIndexX &= 160; //160 = 128+32
|
||||||
|
iPreviousCubeIndexX >>= 1;
|
||||||
|
|
||||||
|
iCubeIndex = iPreviousCubeIndexX | iPreviousCubeIndexZ;
|
||||||
|
|
||||||
|
if (v101 == 0) iCubeIndex |= 32;
|
||||||
|
if (v111 == 0) iCubeIndex |= 128;
|
||||||
|
}
|
||||||
|
else //previous X not available
|
||||||
|
{
|
||||||
|
if(m_uLodLevel == 0)
|
||||||
|
{
|
||||||
|
v001 = m_sampVolume.peekVoxel0px0py1pz();
|
||||||
|
v101 = m_sampVolume.peekVoxel1px0py1pz();
|
||||||
|
v011 = m_sampVolume.peekVoxel0px1py1pz();
|
||||||
|
v111 = m_sampVolume.peekVoxel1px1py1pz();
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace+m_uStepSize);
|
||||||
|
v001 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace+m_uStepSize);
|
||||||
|
v101 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v011 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
}
|
||||||
|
|
||||||
|
//z
|
||||||
|
uint8_t iPreviousCubeIndexZ = m_pPreviousBitmask[getIndex(uXRegSpace,uYRegSpace)];
|
||||||
|
iCubeIndex = iPreviousCubeIndexZ >> 4;
|
||||||
|
|
||||||
|
if (v001 == 0) iCubeIndex |= 16;
|
||||||
|
if (v101 == 0) iCubeIndex |= 32;
|
||||||
|
if (v011 == 0) iCubeIndex |= 64;
|
||||||
|
if (v111 == 0) iCubeIndex |= 128;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else //previous Z not available
|
||||||
|
{
|
||||||
|
if(isPrevYAvail)
|
||||||
|
{
|
||||||
|
if(isPrevXAvail)
|
||||||
|
{
|
||||||
|
if(m_uLodLevel == 0)
|
||||||
|
{
|
||||||
|
v110 = m_sampVolume.peekVoxel1px1py0pz();
|
||||||
|
v111 = m_sampVolume.peekVoxel1px1py1pz();
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace);
|
||||||
|
v110 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
}
|
||||||
|
|
||||||
|
//y
|
||||||
|
uint8_t iPreviousCubeIndexY = m_pCurrentBitmask[getIndex(uXRegSpace,uYRegSpace-m_uStepSize)];
|
||||||
|
iPreviousCubeIndexY &= 204; //204 = 128+64+8+4
|
||||||
|
iPreviousCubeIndexY >>= 2;
|
||||||
|
|
||||||
|
//x
|
||||||
|
uint8_t iPreviousCubeIndexX = m_pCurrentBitmask[getIndex(uXRegSpace-m_uStepSize,uYRegSpace)];
|
||||||
|
iPreviousCubeIndexX &= 170; //170 = 128+32+8+2
|
||||||
|
iPreviousCubeIndexX >>= 1;
|
||||||
|
|
||||||
|
iCubeIndex = iPreviousCubeIndexX | iPreviousCubeIndexY;
|
||||||
|
|
||||||
|
if (v110 == 0) iCubeIndex |= 8;
|
||||||
|
if (v111 == 0) iCubeIndex |= 128;
|
||||||
|
}
|
||||||
|
else //previous X not available
|
||||||
|
{
|
||||||
|
if(m_uLodLevel == 0)
|
||||||
|
{
|
||||||
|
v010 = m_sampVolume.peekVoxel0px1py0pz();
|
||||||
|
v110 = m_sampVolume.peekVoxel1px1py0pz();
|
||||||
|
|
||||||
|
v011 = m_sampVolume.peekVoxel0px1py1pz();
|
||||||
|
v111 = m_sampVolume.peekVoxel1px1py1pz();
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace);
|
||||||
|
v010 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace);
|
||||||
|
v110 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v011 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
}
|
||||||
|
|
||||||
|
//y
|
||||||
|
uint8_t iPreviousCubeIndexY = m_pCurrentBitmask[getIndex(uXRegSpace,uYRegSpace-m_uStepSize)];
|
||||||
|
iPreviousCubeIndexY &= 204; //204 = 128+64+8+4
|
||||||
|
iPreviousCubeIndexY >>= 2;
|
||||||
|
|
||||||
|
iCubeIndex = iPreviousCubeIndexY;
|
||||||
|
|
||||||
|
if (v010 == 0) iCubeIndex |= 4;
|
||||||
|
if (v110 == 0) iCubeIndex |= 8;
|
||||||
|
if (v011 == 0) iCubeIndex |= 64;
|
||||||
|
if (v111 == 0) iCubeIndex |= 128;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else //previous Y not available
|
||||||
|
{
|
||||||
|
if(isPrevXAvail)
|
||||||
|
{
|
||||||
|
if(m_uLodLevel == 0)
|
||||||
|
{
|
||||||
|
v100 = m_sampVolume.peekVoxel1px0py0pz();
|
||||||
|
v110 = m_sampVolume.peekVoxel1px1py0pz();
|
||||||
|
|
||||||
|
v101 = m_sampVolume.peekVoxel1px0py1pz();
|
||||||
|
v111 = m_sampVolume.peekVoxel1px1py1pz();
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace);
|
||||||
|
v100 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace);
|
||||||
|
v110 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace+m_uStepSize);
|
||||||
|
v101 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
}
|
||||||
|
|
||||||
|
//x
|
||||||
|
uint8_t iPreviousCubeIndexX = m_pCurrentBitmask[getIndex(uXRegSpace-m_uStepSize,uYRegSpace)];
|
||||||
|
iPreviousCubeIndexX &= 170; //170 = 128+32+8+2
|
||||||
|
iPreviousCubeIndexX >>= 1;
|
||||||
|
|
||||||
|
iCubeIndex = iPreviousCubeIndexX;
|
||||||
|
|
||||||
|
if (v100 == 0) iCubeIndex |= 2;
|
||||||
|
if (v110 == 0) iCubeIndex |= 8;
|
||||||
|
if (v101 == 0) iCubeIndex |= 32;
|
||||||
|
if (v111 == 0) iCubeIndex |= 128;
|
||||||
|
}
|
||||||
|
else //previous X not available
|
||||||
|
{
|
||||||
|
if(m_uLodLevel == 0)
|
||||||
|
{
|
||||||
|
v000 = m_sampVolume.getVoxel();
|
||||||
|
v100 = m_sampVolume.peekVoxel1px0py0pz();
|
||||||
|
v010 = m_sampVolume.peekVoxel0px1py0pz();
|
||||||
|
v110 = m_sampVolume.peekVoxel1px1py0pz();
|
||||||
|
|
||||||
|
v001 = m_sampVolume.peekVoxel0px0py1pz();
|
||||||
|
v101 = m_sampVolume.peekVoxel1px0py1pz();
|
||||||
|
v011 = m_sampVolume.peekVoxel0px1py1pz();
|
||||||
|
v111 = m_sampVolume.peekVoxel1px1py1pz();
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace);
|
||||||
|
v000 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace);
|
||||||
|
v100 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace);
|
||||||
|
v010 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace);
|
||||||
|
v110 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace,uZVolSpace+m_uStepSize);
|
||||||
|
v001 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace,uZVolSpace+m_uStepSize);
|
||||||
|
v101 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v011 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
m_sampVolume.setPosition(uXVolSpace+m_uStepSize,uYVolSpace+m_uStepSize,uZVolSpace+m_uStepSize);
|
||||||
|
v111 = m_sampVolume.getSubSampledVoxel(m_uLodLevel);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (v000 == 0) iCubeIndex |= 1;
|
||||||
|
if (v100 == 0) iCubeIndex |= 2;
|
||||||
|
if (v010 == 0) iCubeIndex |= 4;
|
||||||
|
if (v110 == 0) iCubeIndex |= 8;
|
||||||
|
if (v001 == 0) iCubeIndex |= 16;
|
||||||
|
if (v101 == 0) iCubeIndex |= 32;
|
||||||
|
if (v011 == 0) iCubeIndex |= 64;
|
||||||
|
if (v111 == 0) iCubeIndex |= 128;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return iCubeIndex;
|
||||||
|
}
|
||||||
|
|
||||||
void SurfaceExtractor::generateVerticesForSlice()
|
void SurfaceExtractor::generateVerticesForSlice()
|
||||||
{
|
{
|
||||||
//Iterate over each cell in the region
|
//Iterate over each cell in the region
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user