Add debug display runtime shader variant stripping

com.unity.render-pipelines.high-definition/HDRP/Editor/Material/ShaderPreprocessorMaterial.cs

         // - Scene Selection
         // - Motion vectors
         // - Tile pass for Transparent (not compatible)
-        // - 
+        // -
         protected bool CommonShaderStripper(HDRenderPipelineAsset hdrpAsset, Shader shader, ShaderSnippetData snippet, ShaderCompilerData inputData)
         {
             bool isSceneSelectionPass = snippet.passName == "SceneSelectionPass";
             }
             else // Opaque
             {
-                // Note: we can't assume anything regarding tile/cluster for opaque as multiple view could used different settings adn it depends on MSAA
+                // Note: we can't assume anything regarding tile/cluster for opaque as multiple view could used different settings and it depends on MSAA
-            // TODO: Expose development build flag.
-            //if (developmentBuild && inputData.shaderKeywordSet.IsEnabled(m_DebugDisplay))
-            //    return true;
+            // If we are in a release build, don't compile debug display variant
+            // Also don't compile it if not requested by the render pipeline settings
+            if ((/*!Debug.isDebugBuild || */ !hdrpAsset.renderPipelineSettings.supportRuntimeDebugDisplay) && inputData.shaderKeywordSet.IsEnabled(m_DebugDisplay))
+                return true;
 
             return false;
         }

com.unity.render-pipelines.high-definition/HDRP/Editor/RenderPipeline/Settings/RenderPipelineSettingsUI.cs

         {
             EditorGUILayout.LabelField(_.GetContent("Render Pipeline Settings"), EditorStyles.boldLabel);
             ++EditorGUI.indentLevel;
-            EditorGUILayout.PropertyField(d.supportShadowMask, _.GetContent("Support Shadow Mask"));
-            EditorGUILayout.PropertyField(d.supportSSR, _.GetContent("Support SSR"));
-            EditorGUILayout.PropertyField(d.supportSSAO, _.GetContent("Support SSAO"));
-            EditorGUILayout.PropertyField(d.supportDBuffer, _.GetContent("Support Decal Buffer"));
-            EditorGUILayout.PropertyField(d.supportMSAA, _.GetContent("Support Multi Sampling Anti-Aliasing"));
-            EditorGUILayout.PropertyField(d.MSAASampleCount, _.GetContent("MSAA Sample Count"));
+            EditorGUILayout.PropertyField(d.supportShadowMask, _.GetContent("Support Shadow Mask|Enable memory (Extra Gbuffer in deferred) and shader variant for shadow mask."));
+            EditorGUILayout.PropertyField(d.supportSSR, _.GetContent("Support SSR|Enable memory use by SSR effect."));
+            EditorGUILayout.PropertyField(d.supportSSAO, _.GetContent("Support SSAO|Enable memory use by SSAO effect."));
+            EditorGUILayout.PropertyField(d.supportDBuffer, _.GetContent("Support Decal Buffer|Enable memory and variant of decal buffer."));
+            EditorGUILayout.PropertyField(d.supportMSAA, _.GetContent("Support Multi Sampling Anti-Aliasing|This feature doesn't work currently."));
+            EditorGUILayout.PropertyField(d.MSAASampleCount, _.GetContent("MSAA Sample Count|Allow to select the level of MSAA."));
-            EditorGUILayout.PropertyField(d.supportOnlyForward, _.GetContent("Support Only Forward"));
-            EditorGUILayout.PropertyField(d.supportMotionVectors, _.GetContent("Support Motion Vectors"));
+            EditorGUILayout.PropertyField(d.supportOnlyForward, _.GetContent("Support Only Forward|Remove all the memory and shader variant of GBuffer. The renderer can be switch to deferred anymore."));
+            EditorGUILayout.PropertyField(d.supportMotionVectors, _.GetContent("Support Motion Vectors|Motion vector are use for Motion Blur, TAA, temporal re-projection of various effect like SSR."));
-            EditorGUILayout.PropertyField(d.enableUltraQualitySSS, _.GetContent("Increase SSS Sample Count"));
-            EditorGUILayout.PropertyField(d.supportVolumetric, _.GetContent("Support volumetric"));
+            EditorGUILayout.PropertyField(d.enableUltraQualitySSS, _.GetContent("Increase SSS Sample Count|This allow better SSS quality. Warning: Slow feature, don't use for game."));
+            EditorGUILayout.PropertyField(d.supportVolumetric, _.GetContent("Support volumetric|Enable memory and shader variant for volumetric."));
+            EditorGUILayout.PropertyField(d.supportRuntimeDebugDisplay, _.GetContent("Support debug display|Remove all debug display shader variant only in the player. Allow faster build."));
+
             --EditorGUI.indentLevel;
         }
     }

com.unity.render-pipelines.high-definition/HDRP/Editor/RenderPipeline/Settings/SerializedRenderPipelineSettings.cs

         public SerializedProperty supportStereo;
         public SerializedProperty enableUltraQualitySSS;
         public SerializedProperty supportVolumetric;
+        public SerializedProperty supportRuntimeDebugDisplay;
+
 
         public SerializedGlobalLightLoopSettings lightLoopSettings;
         public SerializedShadowInitParameters shadowInitParams;
             supportStereo = root.Find((RenderPipelineSettings s) => s.supportStereo);
             enableUltraQualitySSS = root.Find((RenderPipelineSettings s) => s.enableUltraQualitySSS);
             supportVolumetric = root.Find((RenderPipelineSettings s) => s.supportVolumetric);
+            supportRuntimeDebugDisplay = root.Find((RenderPipelineSettings s) => s.supportRuntimeDebugDisplay);
 
             lightLoopSettings = new SerializedGlobalLightLoopSettings(root.Find((RenderPipelineSettings s) => s.lightLoopSettings));
             shadowInitParams = new SerializedShadowInitParameters(root.Find((RenderPipelineSettings s) => s.shadowInitParams));

com.unity.render-pipelines.high-definition/HDRP/RenderPipeline/Settings/RenderPipelineSettings.cs

         public bool supportOnlyForward = false;
         public bool enableUltraQualitySSS = false;
         public bool supportVolumetric = true;
+        public bool supportRuntimeDebugDisplay = true;
 
         // Engine
         public bool         supportDBuffer = false;