refactor(srp): enable managed standalone shadow and depth stages

engine/src/Rendering/Execution/CameraFramePlan.cpp

@@ -63,6 +63,8 @@ CameraFramePlan CameraFramePlan::FromRequest(const CameraRenderRequest& request)
     plan.shadowCasterStage.requested =
         request.shadowCaster.IsRequested() ||
         request.directionalShadow.IsValid();
+    plan.depthOnlyStage.requested =
+        request.depthOnly.IsRequested();
     plan.colorChain.postProcess.requested = request.postProcess.IsRequested();
     plan.colorChain.finalOutput.requested = request.finalOutput.IsRequested();
     return plan;
@@ -232,6 +234,24 @@ void CameraFramePlan::ClearShadowCasterStage(
         explicitlyConfigured;
 }
 
+bool CameraFramePlan::RequestDepthOnlyStage(
+    bool explicitlyConfigured) {
+    depthOnlyStage.requested =
+        request.depthOnly.IsRequested();
+    depthOnlyStage.explicitlyConfigured =
+        depthOnlyStage.explicitlyConfigured ||
+        explicitlyConfigured;
+    return depthOnlyStage.requested;
+}
+
+void CameraFramePlan::ClearDepthOnlyStage(
+    bool explicitlyConfigured) {
+    depthOnlyStage.requested = false;
+    depthOnlyStage.explicitlyConfigured =
+        depthOnlyStage.explicitlyConfigured ||
+        explicitlyConfigured;
+}
+
 bool CameraFramePlan::HasExplicitFullscreenStageConfiguration(
     CameraFrameStage stage) const {
     if (const CameraFrameFullscreenStagePlan* fullscreenStagePlan =
@@ -247,10 +267,18 @@ bool CameraFramePlan::HasExplicitShadowCasterStageConfiguration() const {
     return shadowCasterStage.explicitlyConfigured;
 }
 
+bool CameraFramePlan::HasExplicitDepthOnlyStageConfiguration() const {
+    return depthOnlyStage.explicitlyConfigured;
+}
+
 bool CameraFramePlan::IsShadowCasterStageRequested() const {
     return shadowCasterStage.requested;
 }
 
+bool CameraFramePlan::IsDepthOnlyStageRequested() const {
+    return depthOnlyStage.requested;
+}
+
 bool CameraFramePlan::IsPostProcessStageValid() const {
     if (!IsFullscreenStageRequested(CameraFrameStage::PostProcess)) {
         return true;
@@ -318,7 +346,7 @@ bool CameraFramePlan::HasFrameStage(CameraFrameStage stage) const {
     case CameraFrameStageRequestKind::ShadowCaster:
         return IsShadowCasterStageRequested();
     case CameraFrameStageRequestKind::DepthOnly:
-        return request.depthOnly.IsRequested();
+        return IsDepthOnlyStageRequested();
     case CameraFrameStageRequestKind::ObjectId:
         return request.objectId.IsRequested();
     default: