Fix cropping issue with the compositor camera bridge (#4802)

Co-authored-by: sebastienlagarde <[email protected]>

Author: pmavridis

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

@@ -236,6 +236,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed volumetric fog in planar reflections.
 - Fixed error with motion blur and small render targets.
 - 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).
 
 ### Changed
 - Changed Window/Render Pipeline/HD Render Pipeline Wizard to Window/Rendering/HDRP Wizard

com.unity.render-pipelines.high-definition/Runtime/Compositor/CompositionManager.cs

@@ -151,6 +151,8 @@ public bool shaderPropertiesAreDirty
 
         ShaderVariablesGlobal m_ShaderVariablesGlobalCB = new ShaderVariablesGlobal();
 
+        int m_RecorderTempRT = Shader.PropertyToID("TempRecorder");
+
         static private CompositionManager s_CompositorInstance;
 
         // Built-in Color.black has an alpha of 1, so defien here a fully transparent black
@@ -824,14 +826,14 @@ void CustomRender(ScriptableRenderContext context, HDCamera camera)
                 if (recorderCaptureActions != null)
                 {
                     m_ShaderVariablesGlobalCB._ViewProjMatrix = m_ViewProjMatrixFlipped;
-                    cmd.SetInvertCulling(true);
                     ConstantBuffer.PushGlobal(cmd, m_ShaderVariablesGlobalCB, HDShaderIDs._ShaderVariablesGlobal);
-                    cmd.Blit(null, BuiltinRenderTextureType.CameraTarget, m_Material, m_Material.FindPass("ForwardOnly"));
+                    var format = m_InputLayers[0].GetRenderTarget().format;
+                    cmd.GetTemporaryRT(m_RecorderTempRT, camera.camera.pixelWidth, camera.camera.pixelHeight, 0, FilterMode.Point, format);
+                    cmd.Blit(null, m_RecorderTempRT, m_Material, m_Material.FindPass("ForwardOnly"));
                     for (recorderCaptureActions.Reset(); recorderCaptureActions.MoveNext();)
                     {
-                        recorderCaptureActions.Current(BuiltinRenderTextureType.CameraTarget, cmd);
+                        recorderCaptureActions.Current(m_RecorderTempRT, cmd);
                     }
-                    cmd.SetInvertCulling(false);
                 }
 
                 // When we render directly to game view, we render the image flipped up-side-down, like other HDRP cameras