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Fix for broken moveNegative...() sampler functions.

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Fixed bug in surface extractor causing divide by zero and/or infinite vertices.
This commit is contained in:
David Williams
2010-09-12 21:10:15 +00:00
parent c395fc88a9
commit cc1aa8a514
2 changed files with 12 additions and 6 deletions
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12
library/PolyVoxCore/include/VolumeSampler.inl
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@ -228,11 +228,11 @@ namespace PolyVox
template <typename VoxelType>
void VolumeSampler<VoxelType>::moveNegativeX(void)
{
//Note the *post* increament here
//Note the *post* decreament here
if((mXPosInVolume--) % mVolume->m_uBlockSideLength != 0)
{
//No need to compute new block.
++mCurrentVoxel;
--mCurrentVoxel;
}
else
{
@ -244,11 +244,11 @@ namespace PolyVox
template <typename VoxelType>
void VolumeSampler<VoxelType>::moveNegativeY(void)
{
//Note the *post* increament here
//Note the *post* decreament here
if((mYPosInVolume--) % mVolume->m_uBlockSideLength != 0)
{
//No need to compute new block.
mCurrentVoxel += mVolume->m_uBlockSideLength;
mCurrentVoxel -= mVolume->m_uBlockSideLength;
}
else
{
@ -260,11 +260,11 @@ namespace PolyVox
template <typename VoxelType>
void VolumeSampler<VoxelType>::moveNegativeZ(void)
{
//Note the *post* increament here
//Note the *post* decreament here
if((mZPosInVolume--) % mVolume->m_uBlockSideLength != 0)
{
//No need to compute new block.
mCurrentVoxel += mVolume->m_uBlockSideLength * mVolume->m_uBlockSideLength;
mCurrentVoxel -= mVolume->m_uBlockSideLength * mVolume->m_uBlockSideLength;
}
else
{