Fix incorrect MIS with principled BSDF and specular roughness 0.

2017-10-07 21:43:36 +02:00 · 2017-10-07 21:43:36 +02:00 · c040dedc12
commit c040dedc12
parent c921c3bcd0
1 changed files with 1 additions and 2 deletions
--- a/intern/cycles/kernel/closure/bsdf_microfacet.h
+++ b/intern/cycles/kernel/closure/bsdf_microfacet.h
@ -605,8 +605,7 @@ ccl_device int bsdf_microfacet_ggx_sample(KernelGlobals *kg, const ShaderClosure

 						/* if fresnel is used, calculate the color with reflection_color(...) */
 						if(use_fresnel) {
-							*pdf = 1.0f;
-							*eval = reflection_color(bsdf, *omega_in, m);
+							*eval *= reflection_color(bsdf, *omega_in, m);
 						}

 						label = LABEL_REFLECT | LABEL_SINGULAR;