diff options
Diffstat (limited to 'intern/cycles/kernel/kernel_emission.h')
| -rw-r--r-- | intern/cycles/kernel/kernel_emission.h | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/intern/cycles/kernel/kernel_emission.h b/intern/cycles/kernel/kernel_emission.h index de9e8d77ec8..3863cf221c5 100644 --- a/intern/cycles/kernel/kernel_emission.h +++ b/intern/cycles/kernel/kernel_emission.h @@ -99,23 +99,23 @@ ccl_device_noinline bool direct_emission(KernelGlobals *kg, ShaderData *sd, return false; /* evaluate BSDF at shading point */ - float bsdf_pdf; #ifdef __VOLUME__ if(ccl_fetch(sd, prim) != PRIM_NONE) - shader_bsdf_eval(kg, sd, ls->D, eval, &bsdf_pdf); - else + shader_bsdf_eval(kg, sd, ls->D, eval, ls->pdf, ls->shader & SHADER_USE_MIS); + else { + float bsdf_pdf; shader_volume_phase_eval(kg, sd, ls->D, eval, &bsdf_pdf); + if(ls->shader & SHADER_USE_MIS) { + /* Multiple importance sampling. */ + float mis_weight = power_heuristic(ls->pdf, bsdf_pdf); + light_eval *= mis_weight; + } + } #else - shader_bsdf_eval(kg, sd, ls->D, eval, &bsdf_pdf); + shader_bsdf_eval(kg, sd, ls->D, eval, ls->pdf, ls->shader & SHADER_USE_MIS); #endif - if(ls->shader & SHADER_USE_MIS) { - /* multiple importance sampling */ - float mis_weight = power_heuristic(ls->pdf, bsdf_pdf); - light_eval *= mis_weight; - } - bsdf_eval_mul(eval, light_eval/ls->pdf); #ifdef __PASSES__ |