Eevee: Fix luma calculation for lamp fresnel.

2017-06-30 16:26:33 +02:00 · 2017-06-30 16:26:33 +02:00 · 9b66a320bf
parent e571e6d60e
commit 9b66a320bf
1 changed files with 1 additions and 1 deletions
--- a/source/blender/draw/engines/eevee/shaders/bsdf_common_lib.glsl
+++ b/source/blender/draw/engines/eevee/shaders/bsdf_common_lib.glsl
@ -257,7 +257,7 @@ vec3 F_schlick(vec3 f0, float cos_theta)

 	/* Unreal specular matching : if specular color is below 2% intensity,
 	 * (using green channel for intensity) treat as shadowning */
-	return saturate(50.0 * f0.g) * fac + (1.0 - fac) * f0;
+	return saturate(50.0 * dot(f0, vec3(0.3, 0.6, 0.1))) * fac + (1.0 - fac) * f0;
 }

 /* Fresnel approximation for LTC area lights (not MRP) */