diff options
| -rw-r--r-- | intern/cycles/kernel/integrator/mnee.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/intern/cycles/kernel/integrator/mnee.h b/intern/cycles/kernel/integrator/mnee.h index 67505b9b612..70b009d3b48 100644 --- a/intern/cycles/kernel/integrator/mnee.h +++ b/intern/cycles/kernel/integrator/mnee.h @@ -137,8 +137,14 @@ ccl_device_forceinline void mnee_update_light_sample(KernelGlobals kg, } } else if (ls->type == LIGHT_AREA) { + float invarea = fabsf(klight->area.invarea); ls->D = normalize_len(ls->P - P, &ls->t); - ls->pdf = fabsf(klight->area.invarea); + ls->pdf = invarea; + if (klight->area.tan_spread > 0.f) { + ls->eval_fac = 0.25f * invarea; + ls->eval_fac *= light_spread_attenuation( + ls->D, ls->Ng, klight->area.tan_spread, klight->area.normalize_spread); + } } ls->pdf *= kernel_data.integrator.pdf_lights; |