fix bright microfacet

Ray-Tracing-Systems · Nov 7, 2018 · e383521 · e383521
1 parent 96ba50d
commit e383521
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/hydra_drv/cmaterial.h b/hydra_drv/cmaterial.h
@@ -828,7 +828,7 @@ static inline float blinnEvalPDF(__global const PlainMaterial* a_pMat, const flo
   return blinn_pdf;
 }
 
-#define BLINN_COLOR_MULT 3.0f
+#define BLINN_COLOR_MULT 2.0f
 
 static inline float3 blinnEvalBxDF(__global const PlainMaterial* a_pMat, const float3 l, const float3 v, const float3 n, 
                                    const float2 a_texCoord, __global const EngineGlobals* a_globals, texture2d_t a_tex, __private const ProcTextureList* a_ptList)
@@ -897,7 +897,7 @@ static inline void BlinnSampleAndEvalBRDF(__global const PlainMaterial* a_pMat,
   const float  GF1         = TorranceSparrowGF1(wo, wi);
 
   const float estimatedThoroughput = cosThetaOut*(D * GF1) / fmax(blinn_pdf, DEPSILON2);
-  const float brightBordersMult    = fmin(estimatedThoroughput, 0.5f) / fmax(estimatedThoroughput, DEPSILON2);
+  const float brightBordersMult    = fmin(estimatedThoroughput, 0.65f) / fmax(estimatedThoroughput, DEPSILON2);
 
   a_out->direction = newDir; 
   a_out->pdf       = blinn_pdf;