Fix custom pass normal and template (#2716)

* Fix custom pass template not compiling

* Fix custom pass normal buffer not bound

* Updated changelog

* Update CHANGELOG.md

Co-authored-by: Sebastien Lagarde <sebastien@unity3d.com>

com.unity.render-pipelines.high-definition/CHANGELOG.md

@@ -24,7 +24,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed the sampling of the normal buffer in the the forward transparent pass.
 - Fixed bloom prefiltering tooltip.
 - Fixed NullReferenceException when loading multipel scene async
-- Fixed missing alpha blend state properties in Axf sahder and update default stencil properties
+- Fixed missing alpha blend state properties in Axf shader and update default stencil properties
+- Fixed normal buffer not bound to custom pass anymore.
 
 ## [10.2.0] - 2020-10-19
 

com.unity.render-pipelines.high-definition/Editor/RenderPipeline/CustomPass/CustomPassRenderersShader.template

@@ -85,6 +85,7 @@ Shader "Renderers/#SCRIPTNAME#"
 
                 // Write back the data to the output structures
                 ZERO_INITIALIZE(BuiltinData, builtinData); // No call to InitBuiltinData as we don't have any lighting
+                ZERO_INITIALIZE(SurfaceData, surfaceData);
                 builtinData.opacity = opacity;
                 builtinData.emissiveColor = float3(0, 0, 0);
                 surfaceData.color = color;

com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/RenderPass/CustomPass/CustomPass.cs

@@ -273,6 +273,9 @@ internal void ExecuteInternal(RenderGraph renderGraph, HDCamera hdCamera, Cullin
                         if (customPass.currentRenderTarget.motionVectorBufferRG.IsValid() && (customPass.injectionPoint == CustomPassInjectionPoint.BeforePostProcess || customPass.injectionPoint == CustomPassInjectionPoint.AfterPostProcess))
                             ctx.cmd.SetGlobalTexture(HDShaderIDs._CameraMotionVectorsTexture, customPass.currentRenderTarget.motionVectorBufferRG);
 
+                        if (customPass.currentRenderTarget.normalBufferRG.IsValid() && customPass.injectionPoint != CustomPassInjectionPoint.AfterPostProcess)
+                            ctx.cmd.SetGlobalTexture(HDShaderIDs._NormalBufferTexture, customPass.currentRenderTarget.normalBufferRG);
+
                         if (!customPass.isSetup)
                         {
                             customPass.Setup(ctx.renderContext, ctx.cmd);