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bugfix for a few corner-cases

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Wenzel Jakob 2010-11-30 22:22:57 +01:00
parent 052f5f0bb8
commit 828d3d3af9
2 changed files with 4 additions and 5 deletions
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4
src/medium/heterogeneous-flake.cpp
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@ -395,7 +395,7 @@ public:
}
Float integrateDensities(Ray ray, Float length) const {
int nParts = (int) std::ceil(length/m_stepSize);
int nParts = std::max(1, (int) std::ceil(length/m_stepSize));
nParts += nParts % 2;
const Float stepSize = length/nParts;
const Vector increment = ray.d * stepSize;
@ -422,7 +422,7 @@ public:
Spectrum &currentAlbedo,
Float desiredTau) const {
int nParts = (int) std::ceil(maxDist/m_stepSize);
int nParts = std::max(1, (int) std::ceil(maxDist/m_stepSize));
Float stepSize = maxDist/nParts;
Vector fullIncrement = ray.d * stepSize,
halfIncrement = fullIncrement * .5f;

5
src/medium/heterogeneous-stencil.cpp
View File

@ -199,7 +199,7 @@ public:
}
Float integrateDensities(Ray ray, Float length) const {
int nParts = (int) std::ceil(length/m_stepSize);
int nParts = std::max(1, (int) std::ceil(length/m_stepSize));
nParts += nParts % 2;
const Float stepSize = length/nParts;
const Vector increment = ray.d * stepSize;
@ -225,8 +225,7 @@ public:
Float &currentSigmaT,
Spectrum &currentAlbedo,
Float desiredTau) const {
int nParts = (int) std::ceil(maxDist/m_stepSize);
int nParts = std::max(1, (int) std::ceil(maxDist/m_stepSize));
Float stepSize = maxDist/nParts;
Vector fullIncrement = ray.d * stepSize,
halfIncrement = fullIncrement * .5f;