Make shadow cascade debug colors match editor UI colors.

com.unity.render-pipelines.core/Editor/Lighting/Shadow/ShadowCascadeGUI.cs

@@ -16,10 +16,11 @@ public static class ShadowCascadeGUI
         private const float kSliderbarMargin = 2.0f;
         private const float kSliderbarHeight = 28.0f;
 
+        // Keep in sync with the ones in Debug.hlsl
         private static readonly Color[] kCascadeColors =
         {
             new Color(0.5f, 0.5f, 0.7f, 1.0f),
-            new Color(0.5f, 7, 0.5f, 1.0f),
+            new Color(0.5f, 0.7f, 0.5f, 1.0f),
             new Color(0.7f, 0.7f, 0.5f, 1.0f),
             new Color(0.7f, 0.5f, 0.5f, 1.0f),
         };

com.unity.render-pipelines.core/ShaderLibrary/Debug.hlsl

@@ -16,6 +16,13 @@
 #define kDebugColorBrightRed    float4(255.0 / 255.0, 67.0  / 255.0, 51.0  / 255.0, 1.0) // #FF4333
 #define kDebugColorDarkRed      float4(132.0 / 255.0, 10.0  / 255.0, 54.0  / 255.0, 1.0) // #840A36
 
+// Shadow cascade debug colors. Keep in sync with the ones in ShadowCascadeGUI.cs.
+// Note: These colors are not 1:1 match to editor UI, in order to provide better contrast in the viewport.
+#define kDebugColorShadowCascade0   float4(0.4, 0.4, 0.9, 1.0)
+#define kDebugColorShadowCascade1   float4(0.4, 0.9, 0.4, 1.0)
+#define kDebugColorShadowCascade2   float4(0.9, 0.9, 0.4, 1.0)
+#define kDebugColorShadowCascade3   float4(0.9, 0.4, 0.4, 1.0)
+
 // UX-verified colorblind-optimized "heat color gradient"
 static const float4 kDebugColorGradient[DEBUG_COLORS_COUNT] = { kDebugColorBlack, kDebugColorLightPurple, kDebugColorDeepBlue,
     kDebugColorSkyBlue, kDebugColorLightBlue, kDebugColorTeal, kDebugColorBrightGreen, kDebugColorBrightYellow,

com.unity.render-pipelines.high-definition/Runtime/Lighting/LightLoop/LightLoop.hlsl

@@ -116,10 +116,10 @@ void ApplyDebug(LightLoopContext context, PositionInputs posInput, BSDFData bsdf
         lightLoopOutput.specularLighting = float3(0.0, 0.0, 0.0);
 
         const float3 s_CascadeColors[] = {
-            float3(0.5, 0.5, 0.7),
-            float3(0.5, 0.7, 0.5),
-            float3(0.7, 0.7, 0.5),
-            float3(0.7, 0.5, 0.5),
+            kDebugColorShadowCascade0.rgb,
+            kDebugColorShadowCascade1.rgb,
+            kDebugColorShadowCascade2.rgb,
+            kDebugColorShadowCascade3.rgb,
             float3(1.0, 1.0, 1.0)
         };
 

com.unity.render-pipelines.universal/ShaderLibrary/Debug/Debugging3D.hlsl

@@ -198,12 +198,13 @@ half3 CalculateDebugShadowCascadeColor(in InputData inputData)
 {
     float3 positionWS = inputData.positionWS;
     half cascadeIndex = ComputeCascadeIndex(positionWS);
+
     switch (uint(cascadeIndex))
     {
-        case 0: return kDebugColorBrightRed.rgb;
-        case 1: return kDebugColorDarkYellow.rgb;
-        case 2: return kDebugColorSkyBlue.rgb;
-        case 3: return kDebugColorBrightGreen.rgb;
+        case 0: return kDebugColorShadowCascade0.rgb;
+        case 1: return kDebugColorShadowCascade1.rgb;
+        case 2: return kDebugColorShadowCascade2.rgb;
+        case 3: return kDebugColorShadowCascade3.rgb;
         default: return kDebugColorBlack.rgb;
     }
 }