[Port] [6000.4] Add missing DEBUG_DISPLAY check to MixFogColor

svc-reach-platform-support · Evergreen · commit 6ed958422a83 · 2025-12-16T17:49:07.000Z
diff --git a/Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderVariablesFunctions.hlsl b/Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderVariablesFunctions.hlsl
@@ -470,9 +470,12 @@ half3 MixFogColor(half3 fragColor, half3 fogColor, half fogFactor)
     
     if (anyFogEnabled)
     {
-        half fogIntensity = ComputeFogIntensity(fogFactor);
-        // Workaround for UUM-61728: using a manual lerp to avoid rendering artifacts on some GPUs when Vulkan is used
-        fragColor = fragColor * fogIntensity + fogColor * (half(1.0) - fogIntensity);    
+        if (IsFogEnabled())
+        {
+            half fogIntensity = ComputeFogIntensity(fogFactor);
+            // Workaround for UUM-61728: using a manual lerp to avoid rendering artifacts on some GPUs when Vulkan is used
+            fragColor = fragColor * fogIntensity + fogColor * (half(1.0) - fogIntensity);
+        }
     }
     return fragColor;
 }

Original file line number	Diff line number	Diff line change
`@@ -470,9 +470,12 @@ half3 MixFogColor(half3 fragColor, half3 fogColor, half fogFactor)`
`470`	`470`
`471`	`471`	`if (anyFogEnabled)`
`472`	`472`	`{`
`473`		`- half fogIntensity = ComputeFogIntensity(fogFactor);`
`474`		`- // Workaround for UUM-61728: using a manual lerp to avoid rendering artifacts on some GPUs when Vulkan is used`
`475`		`- fragColor = fragColor * fogIntensity + fogColor * (half(1.0) - fogIntensity);`
	`473`	`+ if (IsFogEnabled())`
	`474`	`+ {`
	`475`	`+ half fogIntensity = ComputeFogIntensity(fogFactor);`
	`476`	`+ // Workaround for UUM-61728: using a manual lerp to avoid rendering artifacts on some GPUs when Vulkan is used`
	`477`	`+ fragColor = fragColor * fogIntensity + fogColor * (half(1.0) - fogIntensity);`
	`478`	`+ }`
`476`	`479`	`}`
`477`	`480`	`return fragColor;`
`478`	`481`	`}`