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Work on CubicSurfaceExtractor.

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This commit is contained in:
David Williams 2010-08-29 22:02:07 +00:00
parent 43a1d0efa0
commit fa2ace83e3
1 changed files with 34 additions and 30 deletions
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64
library/PolyVoxCore/include/CubicSurfaceExtractor.inl
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@ -52,25 +52,29 @@ namespace PolyVox
{
for(uint16_t x = m_regSizeInVoxels.getLowerCorner().getX(); x < m_regSizeInVoxels.getUpperCorner().getX(); x++)
{
uint16_t regX = x - m_regSizeInVoxels.getLowerCorner().getX();
uint16_t regY = y - m_regSizeInVoxels.getLowerCorner().getY();
uint16_t regZ = z - m_regSizeInVoxels.getLowerCorner().getZ();
int currentVoxel = m_volData->getVoxelAt(x,y,z).getDensity() >= VoxelType::getThreshold();
int plusXVoxel = m_volData->getVoxelAt(x+1,y,z).getDensity() >= VoxelType::getThreshold();
if(currentVoxel > plusXVoxel)
{
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y - 0.5f, z - 0.5f), Vector3DFloat(1.0f, 0.0f, 0.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y - 0.5f, z + 0.5f), Vector3DFloat(1.0f, 0.0f, 0.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z - 0.5f), Vector3DFloat(1.0f, 0.0f, 0.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(1.0f, 0.0f, 0.0f), 1));
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY - 0.5f, regZ - 0.5f), Vector3DFloat(1.0f, 0.0f, 0.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY - 0.5f, regZ + 0.5f), Vector3DFloat(1.0f, 0.0f, 0.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ - 0.5f), Vector3DFloat(1.0f, 0.0f, 0.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(1.0f, 0.0f, 0.0f), 1));
m_meshCurrent->addTriangle(v0,v1,v2);
m_meshCurrent->addTriangle(v1,v3,v2);
m_meshCurrent->addTriangle(v0,v2,v1);
m_meshCurrent->addTriangle(v1,v2,v3);
}
if(currentVoxel < plusXVoxel)
{
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y - 0.5f, z - 0.5f), Vector3DFloat(-1.0f, 0.0f, 0.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y - 0.5f, z + 0.5f), Vector3DFloat(-1.0f, 0.0f, 0.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z - 0.5f), Vector3DFloat(-1.0f, 0.0f, 0.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(-1.0f, 0.0f, 0.0f), 1));
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY - 0.5f, regZ - 0.5f), Vector3DFloat(-1.0f, 0.0f, 0.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY - 0.5f, regZ + 0.5f), Vector3DFloat(-1.0f, 0.0f, 0.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ - 0.5f), Vector3DFloat(-1.0f, 0.0f, 0.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(-1.0f, 0.0f, 0.0f), 1));
m_meshCurrent->addTriangle(v0,v1,v2);
m_meshCurrent->addTriangle(v1,v3,v2);
@ -79,42 +83,42 @@ namespace PolyVox
int plusYVoxel = m_volData->getVoxelAt(x,y+1,z).getDensity() >= VoxelType::getThreshold();
if(currentVoxel > plusYVoxel)
{
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x - 0.5f, y + 0.5f, z - 0.5f), Vector3DFloat(0.0f, 1.0f, 0.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x - 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(0.0f, 1.0f, 0.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z - 0.5f), Vector3DFloat(0.0f, 1.0f, 0.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(0.0f, 1.0f, 0.0f), 1));
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX - 0.5f, regY + 0.5f, regZ - 0.5f), Vector3DFloat(0.0f, 1.0f, 0.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX - 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 1.0f, 0.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ - 0.5f), Vector3DFloat(0.0f, 1.0f, 0.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 1.0f, 0.0f), 1));
m_meshCurrent->addTriangle(v0,v1,v2);
m_meshCurrent->addTriangle(v1,v3,v2);
}
if(currentVoxel < plusYVoxel)
{
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x - 0.5f, y + 0.5f, z - 0.5f), Vector3DFloat(0.0f, -1.0f, 0.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x - 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(0.0f, -1.0f, 0.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z - 0.5f), Vector3DFloat(0.0f, -1.0f, 0.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(0.0f, -1.0f, 0.0f), 1));
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX - 0.5f, regY + 0.5f, regZ - 0.5f), Vector3DFloat(0.0f, -1.0f, 0.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX - 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, -1.0f, 0.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ - 0.5f), Vector3DFloat(0.0f, -1.0f, 0.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, -1.0f, 0.0f), 1));
m_meshCurrent->addTriangle(v0,v1,v2);
m_meshCurrent->addTriangle(v1,v3,v2);
m_meshCurrent->addTriangle(v0,v2,v1);
m_meshCurrent->addTriangle(v1,v2,v3);
}
int plusZVoxel = m_volData->getVoxelAt(x,y,z+1).getDensity() >= VoxelType::getThreshold();
if(currentVoxel > plusZVoxel)
{
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x - 0.5f, y - 0.5f, z + 0.5f), Vector3DFloat(0.0f, 0.0f, 1.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x - 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(0.0f, 0.0f, 1.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y - 0.5f, z + 0.5f), Vector3DFloat(0.0f, 0.0f, 1.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(0.0f, 0.0f, 1.0f), 1));
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX - 0.5f, regY - 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 0.0f, 1.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX - 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 0.0f, 1.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY - 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 0.0f, 1.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 0.0f, 1.0f), 1));
m_meshCurrent->addTriangle(v0,v1,v2);
m_meshCurrent->addTriangle(v1,v3,v2);
m_meshCurrent->addTriangle(v0,v2,v1);
m_meshCurrent->addTriangle(v1,v2,v3);
}
if(currentVoxel < plusZVoxel)
{
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x - 0.5f, y - 0.5f, z + 0.5f), Vector3DFloat(0.0f, 0.0f, -1.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x - 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(0.0f, 0.0f, -1.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y - 0.5f, z + 0.5f), Vector3DFloat(0.0f, 0.0f, -1.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(x + 0.5f, y + 0.5f, z + 0.5f), Vector3DFloat(0.0f, 0.0f, -1.0f), 1));
uint32_t v0 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX - 0.5f, regY - 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 0.0f, -1.0f), 1));
uint32_t v1 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX - 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 0.0f, -1.0f), 1));
uint32_t v2 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY - 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 0.0f, -1.0f), 1));
uint32_t v3 = m_meshCurrent->addVertex(SurfaceVertex(Vector3DFloat(regX + 0.5f, regY + 0.5f, regZ + 0.5f), Vector3DFloat(0.0f, 0.0f, -1.0f), 1));
m_meshCurrent->addTriangle(v0,v1,v2);
m_meshCurrent->addTriangle(v1,v3,v2);