Commit: e82876589f81961f42ee7f858b15d3b662c1c6b0
Author: Sergey Sharybin
Date: Wed Dec 2 03:13:19 2015 +0500
Branches: master
https://developer.blender.org/rBe82876589f81961f42ee7f858b15d3b662c1c6b0
Cycles: Fix wrong SSS on scaled instanced objects
Was a mistake on searching refined position form ray and hit distance.
Remember kids: SSS distance is in the object space!
===================================================================
M intern/cycles/kernel/kernel_subsurface.h
===================================================================
diff --git a/intern/cycles/kernel/kernel_subsurface.h
b/intern/cycles/kernel/kernel_subsurface.h
index e2d195a..27a341a 100644
--- a/intern/cycles/kernel/kernel_subsurface.h
+++ b/intern/cycles/kernel/kernel_subsurface.h
@@ -292,7 +292,10 @@ ccl_device int subsurface_scatter_multi_intersect(
for(int hit = 0; hit < num_eval_hits; hit++) {
/* Quickly retrieve P and Ng without setting up ShaderData. */
- float3 hit_P = ray->P + ss_isect->hits[hit].t * ray->D;
+ float3 hit_P = triangle_refine_subsurface(kg,
+ sd,
+ &ss_isect->hits[hit],
+ ray);
float3 hit_Ng = ss_isect->Ng[hit];
if(ss_isect->hits[hit].object != OBJECT_NONE) {
object_normal_transform(kg, sd, &hit_Ng);
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