Revision: 43792
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=43792
Author: blendix
Date: 2012-01-31 14:57:46 +0000 (Tue, 31 Jan 2012)
Log Message:
-----------
Fix #30034: bug in multiple importance sampling + transparency, would
give slightly wrong lighting behind transparent objects.
Modified Paths:
--------------
trunk/blender/intern/cycles/kernel/kernel_path.h
Modified: trunk/blender/intern/cycles/kernel/kernel_path.h
===================================================================
--- trunk/blender/intern/cycles/kernel/kernel_path.h 2012-01-31 11:11:56 UTC
(rev 43791)
+++ trunk/blender/intern/cycles/kernel/kernel_path.h 2012-01-31 14:57:46 UTC
(rev 43792)
@@ -220,9 +220,7 @@
path_radiance_init(&L, kernel_data.film.use_light_pass);
-#if defined(__EMISSION__) || defined(__BACKGROUND__)
float ray_pdf = 0.0f;
-#endif
PathState state;
int rng_offset = PRNG_BASE_NUM;
@@ -344,9 +342,8 @@
path_radiance_bsdf_bounce(&L, &throughput, &bsdf_eval,
bsdf_pdf, state.bounce, label);
/* set labels */
-#if defined(__EMISSION__) || defined(__BACKGROUND__)
- ray_pdf = bsdf_pdf;
-#endif
+ if(!(label & LABEL_TRANSPARENT))
+ ray_pdf = bsdf_pdf;
/* update path state */
path_state_next(kg, &state, label);
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