Saturate (NdL + bias) to preserve energy (https://github.com/o3de/o3de/pull/6428#discussion_r774253478, https://github.com/o3de/o3de/pull/6428#discussion_r776069110)

Signed-off-by: Santi Paprika <santi.gonzalez.cs@gmail.com>
2022-01-04 10:34:05 +01:00
parent 7052b99671
commit c814be22fd
1 changed files with 1 additions and 1 deletions
@@ -73,7 +73,7 @@ float3 GetBackLighting(Surface surface, LightingData lightingData, float3 lightI

                // Irradiance arround surface point. 
                // Increase angle of influence (angle(N,L) -> angle(N,L) + acos(transmissionNdLBias)) to smooth transition regions
-                float3 E = surface.albedo * max(lightingData.transmissionNdLBias + dot(-surface.normal, dirToLight),0.0);
+                float3 E = surface.albedo * saturate(lightingData.transmissionNdLBias + dot(-surface.normal, dirToLight));

                // Transmission distance modulated by hardcoded constant (could be exposed as a weight of scattering distance for transmission)
                float s = transmissionDistance * 100.0;