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Wenzel Jakob 2013-08-28 17:11:47 +02:00
parent c7257d765d 4bcd5dd408
commit 221a93d67d
1 changed files with 1 additions and 1 deletions
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src/integrators/photonmapper/bre.cpp
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@ -169,7 +169,7 @@ Spectrum BeamRadianceEstimator::query(const Ray &r, const Medium *medium) const
Float diskDistance = dot(originToCenter, ray.d), radSqr = node.radius * node.radius; Float diskDistance = dot(originToCenter, ray.d), radSqr = node.radius * node.radius;
Float distSqr = (ray(diskDistance) - node.photon.getPosition()).lengthSquared(); Float distSqr = (ray(diskDistance) - node.photon.getPosition()).lengthSquared();
if (distSqr < radSqr) { if (diskDistance > 0 && distSqr < radSqr) {
Float weight = K2(distSqr/radSqr)/radSqr; Float weight = K2(distSqr/radSqr)/radSqr;
Vector wi = -node.photon.getDirection(); Vector wi = -node.photon.getDirection();