Improve multi-bounce irradiance lighting by limiting the diffuse color intensity

2022-05-26 15:09:37 +02:00
parent e6a06832bf
commit c2082925c7
1 changed files with 1 additions and 0 deletions
--- a/Source/Shaders/GI/GlobalSurfaceAtlas.shader
+++ b/Source/Shaders/GI/GlobalSurfaceAtlas.shader
@@ -120,6 +120,7 @@ float4 PS_Lighting(AtlasVertexOutput input) : SV_Target

    // Calculate lighting
    float3 diffuseColor = GetDiffuseColor(gBuffer);
+    diffuseColor = min(diffuseColor, 0.9f); // Nothing reflects diffuse like perfectly in the real world (ensure to have energy loss at each light bounce)
    float3 diffuse = Diffuse_Lambert(diffuseColor);
    float4 light = float4(diffuse * irradiance, 1);
 #else