Tweaks - do premultiplied alpha, add a [branch], adjust slider limits

1 files changed, 3 insertions, 1 deletions

diff --git a/brdf.cginc b/brdf.cginc
index 38aec90..4081d49 100755
--- a/brdf.cginc
+++ b/brdf.cginc
@@ -250,7 +250,9 @@ float4 brdf(Pbr pbr, LightData data, out BrdfData bd) {
 #else
   float3 emission = 0;
 #endif
-  return float4(diffuse + specular + emission, pbr.albedo.a);
+  float4 lit = float4(diffuse + specular + emission, pbr.albedo.a);
+  // Scale albedo by alpha.
+  return float4(lit.rgb * lit.a, lit.a);
 }
 
 #endif  // __BRDF_INC