refactor(rendering): centralize fullscreen stage surface resolution

engine/src/Rendering/Execution/CameraFramePlan.cpp

@@ -107,6 +107,12 @@ bool CameraFramePlan::HasFrameStage(CameraFrameStage stage) const {
     }
 
     if (IsCameraFrameSequenceStage(stage)) {
+        if (const FullscreenPassRenderRequest* fullscreenRequest =
+                GetFullscreenPassRequest(stage);
+            fullscreenRequest != nullptr) {
+            return fullscreenRequest->IsRequested();
+        }
+
         return GetPassSequence(stage) != nullptr;
     }
 
@@ -143,6 +149,18 @@ RenderPassSequence* CameraFramePlan::GetPassSequence(CameraFrameStage stage) con
     }
 }
 
+const FullscreenPassRenderRequest* CameraFramePlan::GetFullscreenPassRequest(
+    CameraFrameStage stage) const {
+    switch (stage) {
+    case CameraFrameStage::PostProcess:
+        return &postProcess;
+    case CameraFrameStage::FinalOutput:
+        return &finalOutput;
+    default:
+        return nullptr;
+    }
+}
+
 const ScenePassRenderRequest* CameraFramePlan::GetScenePassRequest(CameraFrameStage stage) const {
     switch (GetCameraFrameStageRequestKind(stage)) {
     case CameraFrameStageRequestKind::ShadowCaster: