Merge pull request #1260 from Unity-Technologies/PreIntegratedFDG-material-as-resource

Preintegratedfdg material as resource

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Editor/HDAssetFactory.cs

                 newAsset.opaqueAtmosphericScattering = Load<Shader>(HDRenderPipelinePath + "Sky/OpaqueAtmosphericScattering.shader");
                 newAsset.hdriSky = Load<Shader>(HDRenderPipelinePath + "Sky/HDRISky/HDRISky.shader");
                 newAsset.proceduralSky = Load<Shader>(HDRenderPipelinePath + "Sky/ProceduralSky/ProceduralSky.shader");
+                // Skybox/Cubemap is a builtin shader, must use Sahder.Find to access it. It is fine because we are in the editor
+                newAsset.skyboxCubemap = Shader.Find("Skybox/Cubemap");
+
+                // Material
+                newAsset.preIntegratedFGD = Load<Shader>(HDRenderPipelinePath + "Material/PreIntegratedFGD.shader");
-
-                // Skybox/Cubemap is a builtin shader, must use Sahder.Find to access it. It is fine because we are in the editor
-                newAsset.skyboxCubemap = Shader.Find("Skybox/Cubemap");
 
                 // Shadow
                 newAsset.shadowClearShader = Load<Shader>(CorePath + "Shadow/ShadowClear.shader");

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/PreIntegratedFGD/PreIntegratedFGD.cs

         int m_refCounting;
 
         // For image based lighting
-        Material m_InitPreFGD;
+        Material m_PreIntegratedFGDMaterial;
         RenderTexture m_PreIntegratedFGD;
 
         PreIntegratedFGD()
 
             if (m_refCounting == 0)
             {
-                m_InitPreFGD = CoreUtils.CreateEngineMaterial("Hidden/HDRenderPipeline/PreIntegratedFGD");
+                var hdrp = GraphicsSettings.renderPipelineAsset as HDRenderPipelineAsset;
+                m_PreIntegratedFGDMaterial = CoreUtils.CreateEngineMaterial(hdrp.renderPipelineResources.preIntegratedFGD);
 
                 m_PreIntegratedFGD = new RenderTexture(128, 128, 0, RenderTextureFormat.ARGB2101010, RenderTextureReadWrite.Linear);
                 m_PreIntegratedFGD.hideFlags = HideFlags.HideAndDontSave;
             if (m_isInit)
                 return;
 
-            using (new ProfilingSample(cmd, "Init PreFGD"))
+            using (new ProfilingSample(cmd, "PreIntegratedFGD Material Generation"))
-                CoreUtils.DrawFullScreen(cmd, m_InitPreFGD, new RenderTargetIdentifier(m_PreIntegratedFGD));
+                CoreUtils.DrawFullScreen(cmd, m_PreIntegratedFGDMaterial, new RenderTargetIdentifier(m_PreIntegratedFGD));
             }
 
             m_isInit = true;
 
             if (m_refCounting == 0)
             {
-                CoreUtils.Destroy(m_InitPreFGD);
+                CoreUtils.Destroy(m_PreIntegratedFGDMaterial);
                 CoreUtils.Destroy(m_PreIntegratedFGD);
 
                 m_isInit = false;

ScriptableRenderPipeline/HDRenderPipeline/HDRP/RenderPipelineResources/HDRenderPipelineResources.asset

   hdriSky: {fileID: 4800000, guid: 9bd32a6ece529fd4f9408b8d7e00c10d, type: 3}
   proceduralSky: {fileID: 4800000, guid: ec63f47fd265df243a7b1d40f9ef7fe7, type: 3}
   skyboxCubemap: {fileID: 103, guid: 0000000000000000f000000000000000, type: 0}
+  preIntegratedFGD: {fileID: 4800000, guid: 123f13d52852ef547b2962de4bd9eaad, type: 3}
   encodeBC6HCS: {fileID: 7200000, guid: aa922d239de60304f964e24488559eeb, type: 3}
   cubeToPanoShader: {fileID: 4800000, guid: 595434cc3b6405246b6cd3086d0b6f7d, type: 3}
   blitCubeTextureFace: {fileID: 4800000, guid: d850d0a2481878d4bbf17e5126b04163, type: 3}

ScriptableRenderPipeline/HDRenderPipeline/HDRP/RenderPipelineResources/RenderPipelineResources.cs

         public Shader opaqueAtmosphericScattering;
         public Shader hdriSky;
         public Shader proceduralSky;
-
+
+        // Material
+        public Shader preIntegratedFGD;
 
         // Utilities / Core
         public ComputeShader encodeBC6HCS;

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/PreIntegratedFGD/PreIntegratedFGD.shader

 Shader "Hidden/HDRenderPipeline/PreIntegratedFGD"
 {
-    SubShader 
+    SubShader
-        Pass 
+        Pass
         {
             ZTest Always Cull Off ZWrite Off
 
 
             #include "CoreRP/ShaderLibrary/Common.hlsl"
             #include "CoreRP/ShaderLibrary/ImageBasedLighting.hlsl"
-            #include "../../../ShaderVariables.hlsl"
+            #include "../../ShaderVariables.hlsl"
 
             struct Attributes
             {

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/PreIntegratedFGD/Resources.meta

-fileFormatVersion: 2
-guid: ce581725fe970e14abbd599942a16779
-folderAsset: yes
-DefaultImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: