Merge pull request #636 from Unity-Technologies/Branch_FixCreateHDResources

Fixed various shader paths in the Create HD Resource method.

ScriptableRenderPipeline/HDRenderPipeline/Editor/HDAssetFactory.cs

                 newAsset.buildMaterialFlagsShader = Load<ComputeShader>(HDRenderPipelinePath + "Lighting/LightLoop/materialflags.compute");
                 newAsset.deferredComputeShader = Load<ComputeShader>(HDRenderPipelinePath + "Lighting/LightLoop/Deferred.compute");
 
-                newAsset.deferredDirectionalShadowComputeShader = Load<ComputeShader>(HDRenderPipelinePath + "Lighting/LightLoop/DeferredDirectionalShadow.compute");
+                newAsset.deferredDirectionalShadowComputeShader = Load<ComputeShader>(HDRenderPipelinePath + "Lighting/DeferredDirectionalShadow.compute");
 
                 // SceneSettings
                 // These shaders don't need to be reference by RenderPipelineResource as they are not use at runtime (only to draw in editor)
 
                 // Sky
                 newAsset.blitCubemap = Load<Shader>(HDRenderPipelinePath + "Sky/BlitCubemap.shader");
-                newAsset.buildProbabilityTables = Load<ComputeShader>(HDRenderPipelinePath + "Sky/BuildProbabilityTables.compute");
-                newAsset.computeGgxIblSampleData = Load<ComputeShader>(HDRenderPipelinePath + "Sky/ComputeGgxIblSampleData.compute");
-                newAsset.GGXConvolve = Load<Shader>(HDRenderPipelinePath + "Sky/GGXConvolve.shader");
+                newAsset.buildProbabilityTables = Load<ComputeShader>(HDRenderPipelinePath + "Material/GGXConvolution/BuildProbabilityTables.compute");
+                newAsset.computeGgxIblSampleData = Load<ComputeShader>(HDRenderPipelinePath + "Material/GGXConvolution/ComputeGgxIblSampleData.compute");
+                newAsset.GGXConvolve = Load<Shader>(HDRenderPipelinePath + "Material/GGXConvolution/GGXConvolve.shader");
                 newAsset.opaqueAtmosphericScattering = Load<Shader>(HDRenderPipelinePath + "Sky/OpaqueAtmosphericScattering.shader");
 
                 newAsset.encodeBC6HCS = Load<ComputeShader>(CorePath + "Resources/EncodeBC6H.compute");

ScriptableRenderPipeline/HDRenderPipeline/Lighting/LightLoop/LightLoop.cs

             else if (light.lightType == LightType.Spot && additionalLightData.spotLightShape != SpotLightShape.Cone)
             {
                 // Projectors lights must always have a cookie texture.
+                // As long as the cache is a texture array and not an atlas, the 4x4 white texture will be rescaled to 128
                 lightData.cookieIndex = m_CookieTexArray.FetchSlice(cmd, Texture2D.whiteTexture);
             }