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Cycles: Fix negative contribution from Velvet BSDF at grazing angles

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This commit is contained in:
Lukas Stockner 2023-06-08 03:03:51 +02:00
parent 3b4182f272
commit 801897ed4e
1 changed files with 1 additions and 1 deletions
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2
intern/cycles/kernel/closure/bsdf_ashikhmin_velvet.h
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@ -105,7 +105,7 @@ ccl_device int bsdf_ashikhmin_velvet_sample(ccl_private const ShaderClosure *sc,
float cosHI = fabsf(dot(wi, H));
float cosNH = dot(N, H);
if (!(fabsf(cosNI) > 1e-5f && fabsf(cosNH) < 1.0f - 1e-5f && cosHI > 1e-5f)) {
if (!(cosNI > 1e-5f && fabsf(cosNH) < 1.0f - 1e-5f && cosHI > 1e-5f)) {
*pdf = 0.0f;
*eval = zero_spectrum();
return LABEL_NONE;