Use non jittered projection in outline pass

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

@@ -244,6 +244,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed issue with on-demand directional shadow maps looking broken when a reflection probe is updated at the same time.
 - Fixed cropping issue with the compositor camera bridge (case 1340549).
 - Fixed the transparent cutoff not working properly in semi-transparent and color shadows (case 1340234).
+- Fixed object outline flickering with TAA.
 
 ### Changed
 - Changed Window/Render Pipeline/HD Render Pipeline Wizard to Window/Rendering/HDRP Wizard

com.unity.render-pipelines.high-definition/Editor/Material/ShaderGraph/HDShaderPasses.cs

@@ -185,6 +185,7 @@ IncludeCollection GenerateIncludes()
             {
                 var includes = new IncludeCollection();
 
+                includes.Add(CoreIncludes.kPickingSpaceTransforms, IncludeLocation.Pregraph);
                 includes.Add(CoreIncludes.CorePregraph);
                 if (supportLighting)
                     includes.Add(CoreIncludes.kNormalSurfaceGradient, IncludeLocation.Pregraph);

com.unity.render-pipelines.high-definition/Runtime/Material/AxF/AxF.shader

@@ -285,6 +285,7 @@ Shader "HDRP/AxF"
             // We reuse depth prepass for the scene selection, allow to handle alpha correctly as well as tessellation and vertex animation
             #define SHADERPASS SHADERPASS_DEPTH_ONLY
             #define SCENESELECTIONPASS // This will drive the output of the scene selection shader
+            #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/PickingSpaceTransforms.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Material.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/AxF/AxF.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/AxF/ShaderPass/AxFDepthPass.hlsl"

com.unity.render-pipelines.high-definition/Runtime/Material/LayeredLit/LayeredLit.shader

@@ -650,6 +650,7 @@ Shader "HDRP/LayeredLit"
 
             #define SHADERPASS SHADERPASS_DEPTH_ONLY
             #define SCENESELECTIONPASS // This will drive the output of the scene selection shader
+            #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/PickingSpaceTransforms.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Material.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Lit/Lit.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Lit/ShaderPass/LitDepthPass.hlsl"

com.unity.render-pipelines.high-definition/Runtime/Material/LayeredLit/LayeredLitTessellation.shader

@@ -676,6 +676,7 @@ Shader "HDRP/LayeredLitTessellation"
 
             #define SHADERPASS SHADERPASS_DEPTH_ONLY
             #define SCENESELECTIONPASS // This will drive the output of the scene selection shader
+            #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/PickingSpaceTransforms.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Material.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Lit/Lit.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Lit/ShaderPass/LitDepthPass.hlsl"

com.unity.render-pipelines.high-definition/Runtime/Material/Lit/Lit.shader

@@ -441,6 +441,7 @@ Shader "HDRP/Lit"
             // We reuse depth prepass for the scene selection, allow to handle alpha correctly as well as tessellation and vertex animation
             #define SHADERPASS SHADERPASS_DEPTH_ONLY
             #define SCENESELECTIONPASS // This will drive the output of the scene selection shader
+            #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/PickingSpaceTransforms.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Material.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Lit/Lit.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Lit/ShaderPass/LitDepthPass.hlsl"

com.unity.render-pipelines.high-definition/Runtime/Material/Lit/LitTessellation.shader

@@ -461,6 +461,7 @@ Shader "HDRP/LitTessellation"
             // We reuse depth prepass for the scene selection, allow to handle alpha correctly as well as tessellation and vertex animation
             #define SHADERPASS SHADERPASS_DEPTH_ONLY
             #define SCENESELECTIONPASS // This will drive the output of the scene selection shader
+            #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/PickingSpaceTransforms.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Material.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Lit/Lit.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Lit/ShaderPass/LitDepthPass.hlsl"

com.unity.render-pipelines.high-definition/Runtime/Material/TerrainLit/TerrainLitTemplate.hlsl

@@ -25,6 +25,9 @@
 #ifdef DEBUG_DISPLAY
     #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Debug/DebugDisplay.hlsl"
 #endif
+#ifdef SCENESELECTIONPASS
+    #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/PickingSpaceTransforms.hlsl"
+#endif
 #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Material.hlsl"
 
 #if SHADERPASS == SHADERPASS_FORWARD

com.unity.render-pipelines.high-definition/Runtime/Material/Unlit/Unlit.shader

@@ -167,7 +167,7 @@ Shader "HDRP/Unlit"
 
             #define SHADERPASS SHADERPASS_DEPTH_ONLY
             #define SCENESELECTIONPASS // This will drive the output of the scene selection shader
-
+            #include "Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/PickingSpaceTransforms.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Material.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Unlit/Unlit.hlsl"
             #include "Packages/com.unity.render-pipelines.high-definition/Runtime/Material/Unlit/ShaderPass/UnlitDepthPass.hlsl"

com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/ShaderPass/TessellationShare.hlsl

@@ -14,7 +14,7 @@ float4 GetTessellationFactors(float3 p0, float3 p1, float3 p2, float3 n0, float3
     // Thus the following code play with both.
     float frustumEps = -maxDisplacement; // "-" Expected parameter for CullTriangleEdgesFrustum
 
-#ifndef SCENEPICKINGPASS
+#if !defined(SCENESELECTIONPASS) && !defined(SCENEPICKINGPASS)
     // TODO: the only reason I test the near plane here is that I am not sure that the product of other tessellation factors
     // (such as screen-space/distance-based) results in the tessellation factor of 1 for the geometry behind the near plane.
     // If that is the case (and, IMHO, it should be), we shouldn't have to test the near plane here.

com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/PickingSpaceTransforms.hlsl

@@ -1,10 +1,11 @@
 #ifndef UNITY_PICKING_SPACE_TRANSFORMS_INCLUDED
 #define UNITY_PICKING_SPACE_TRANSFORMS_INCLUDED
 
-#ifdef SCENEPICKINGPASS
+#if defined(SCENEPICKINGPASS) || defined(SCENESELECTIONPASS)
 
 // The picking pass uses custom matrices defined directly from the c++
 // So we have to redefine the space transform functions to overwrite the used matrices
+// For the selection pass, we want to use the non jittered projection matrix to avoid object outline flickering
 
 #undef SHADEROPTIONS_CAMERA_RELATIVE_RENDERING