Clamp to prevent area light artifacts

EvgeniiG · EvgeniiG · commit 90e479e28dca · 2016-12-08T10:44:46.000+01:00
diff --git a/Assets/ScriptableRenderLoop/ShaderLibrary/AreaLighting.hlsl b/Assets/ScriptableRenderLoop/ShaderLibrary/AreaLighting.hlsl
@@ -160,7 +160,9 @@ float PolygonRadiance(float4x3 L, bool twoSided)
 
     sum *= INV_TWO_PI; // Normalization
 
-    return twoSided ? abs(sum) : max(sum, 0.0);
+    sum = twoSided ? abs(sum) : max(sum, 0.0);
+
+    return isfinite(sum) ? sum : 0.0;
 }
 
 // For polygonal lights.

Original file line number	Diff line number	Diff line change
`@@ -160,7 +160,9 @@ float PolygonRadiance(float4x3 L, bool twoSided)`
`160`	`160`
`161`	`161`	`sum *= INV_TWO_PI; // Normalization`
`162`	`162`
`163`		`- return twoSided ? abs(sum) : max(sum, 0.0);`
	`163`	`+ sum = twoSided ? abs(sum) : max(sum, 0.0);`
	`164`	`+`
	`165`	`+ return isfinite(sum) ? sum : 0.0;`
`164`	`166`	`}`
`165`	`167`
`166`	`168`	`// For polygonal lights.`