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Added bounds checks

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This commit is contained in:
David Williams 2015-05-17 11:47:52 +02:00
parent ccb76bc6d7
commit 9a68582530
1 changed files with 3 additions and 3 deletions
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6
include/PolyVox/MarchingCubesSurfaceExtractor.inl
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@ -165,7 +165,7 @@ namespace PolyVox
const Vector3DFloat n000 = computeCentralDifferenceGradient(m_sampVolume); const Vector3DFloat n000 = computeCentralDifferenceGradient(m_sampVolume);
/* Find the vertices where the surface intersects the cube */ /* Find the vertices where the surface intersects the cube */
if (edgeTable[iCubeIndex] & 64) if ((edgeTable[iCubeIndex] & 64) && (uXRegSpace > 0))
{ {
m_sampVolume.moveNegativeX(); m_sampVolume.moveNegativeX();
POLYVOX_ASSERT(v011 != v111, "Attempting to insert vertex between two voxels with the same value"); POLYVOX_ASSERT(v011 != v111, "Attempting to insert vertex between two voxels with the same value");
@ -198,7 +198,7 @@ namespace PolyVox
m_sampVolume.movePositiveX(); m_sampVolume.movePositiveX();
} }
if (edgeTable[iCubeIndex] & 32) if ((edgeTable[iCubeIndex] & 32) && (uYRegSpace > 0))
{ {
m_sampVolume.moveNegativeY(); m_sampVolume.moveNegativeY();
POLYVOX_ASSERT(v101 != v111, "Attempting to insert vertex between two voxels with the same value"); POLYVOX_ASSERT(v101 != v111, "Attempting to insert vertex between two voxels with the same value");
@ -231,7 +231,7 @@ namespace PolyVox
m_sampVolume.movePositiveY(); m_sampVolume.movePositiveY();
} }
if (edgeTable[iCubeIndex] & 1024) if ((edgeTable[iCubeIndex] & 1024) && (uZRegSpace > 0))
{ {
m_sampVolume.moveNegativeZ(); m_sampVolume.moveNegativeZ();
POLYVOX_ASSERT(v110 != v111, "Attempting to insert vertex between two voxels with the same value"); POLYVOX_ASSERT(v110 != v111, "Attempting to insert vertex between two voxels with the same value");