diff options
Diffstat (limited to 'intern')
| -rw-r--r-- | intern/cycles/kernel/geom/geom_triangle_intersect.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/intern/cycles/kernel/geom/geom_triangle_intersect.h b/intern/cycles/kernel/geom/geom_triangle_intersect.h index fc081bda525..720ee6a1f5c 100644 --- a/intern/cycles/kernel/geom/geom_triangle_intersect.h +++ b/intern/cycles/kernel/geom/geom_triangle_intersect.h @@ -255,6 +255,13 @@ ccl_device_inline void triangle_intersect_subsurface( /* Normalize U, V, W, and T. */ const float inv_det = 1.0f / det; + const float t = T * inv_det; + for(int i = min(max_hits, ss_isect->num_hits); i >= 0; --i) { + if(ss_isect->hits[i].t == t) { + return; + } + } + ss_isect->num_hits++; int hit; @@ -277,7 +284,7 @@ ccl_device_inline void triangle_intersect_subsurface( isect->type = PRIMITIVE_TRIANGLE; isect->u = U * inv_det; isect->v = V * inv_det; - isect->t = T * inv_det; + isect->t = t; /* Record geometric normal. */ /* TODO(sergey): Use float4_to_float3() on just an edges. */ |