fix energy conservation issues; notably smooth=0 metallic=1 matches filamented now

1 files changed, 4 insertions, 1 deletions

diff --git a/lighting.cginc b/lighting.cginc
index 4e5a61b..5f66b80 100644
--- a/lighting.cginc
+++ b/lighting.cginc
@@ -188,7 +188,10 @@ void GetLighting(v2f i, Pbr pbr, out LightData data) {
 	data.direct.color = lightColorIntensity.rgb * lightColorIntensity.w;
 
 	// Indirect lighting
-  data.indirect.dir = -reflect(data.common.V, pbr.normal);
+  float3 reflect_dir = -reflect(data.common.V, pbr.normal);
+  float3 dominant_dir = getSpecularDominantDirection(pbr.normal, reflect_dir, pbr.roughness);
+
+  data.indirect.dir = normalize(dominant_dir);
 	data.indirect.H = normalize(data.common.V + data.indirect.dir);
 	data.indirect.NoL = saturate(dot(pbr.normal, data.indirect.dir));
 	data.indirect.NoH = saturate(dot(pbr.normal, data.indirect.H));