Add selection outline post-process setup (material pending)

- PostProcessComponent on Pawn (unbound, applies to entire scene)
- Auto-loads M_PS_Editor_SelectionOutline material at BeginPlay
- Removed debug bounding box from Tick
- Custom depth stencil already toggled on selected actors
- Material needs to be created in UE editor (edge detection on CustomStencil)
- Instructions: use TexCoord + Constant2Vector offsets for 4-neighbor sampling

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/memory/project_ps_editor.md

@@ -4,39 +4,44 @@ description: Runtime editor plugin for UE 5.5 - object placement, scene editing,
 type: project
 ---
 
-PS_Editor is a runtime editor plugin for Unreal Engine 5.5 that will be integrated into the PROSERVE project.
-
-**Why:** Enable runtime scene editing in packaged builds - place objects, configure properties, define scenarios, manipulate splines, modify lighting, and save/load scenes as JSON.
+PS_Editor is a runtime editor plugin for Unreal Engine 5.5 for the PROSERVE project.
 
 Key decisions:
 - UI: UMG driven by C++ (Slate)
-- Gizmos: Custom actor with BasicShapes + unlit material (InteractiveToolsFramework is editor-only)
-- Serialization: JSON via Json/JsonUtilities modules (future)
+- Gizmos: Custom actor with BasicShapes + unlit material (ITF is editor-only)
+- Serialization: JSON via Json/JsonUtilities (FJsonObjectConverter)
 - Naming: PS_Editor_ prefix on all files/classes
 - Plugin path: Unreal/Plugins/PS_Editor/
-- AZERTY keyboard layout: arrows + A/Q for movement, E/R/T for modes
+- AZERTY keyboard: arrows + A/Q for movement, E/R/T for modes
 
 ## Completed Phases
 
 ### Phase 1 - GameMode + Camera
-- PS_Editor_GameMode, PS_Editor_Pawn, PS_Editor_PlayerController, PS_Editor_HUD
 - Camera: Fly (RMB), Pan (LMB drag), Orbit (Alt+LMB / MMB)
 - Movement: arrows + A (up) / Q (down)
 
 ### Phase 2 - Selection + Transform + Undo
-- SelectionManager: raycast click-to-select, Ctrl+click multi-select, Movable actors only
-- Gizmo: custom actor with colored arrows (R/G/B), cones, SDPG_Foreground, constant screen size
+- Click-to-select (Movable actors only), Ctrl+click multi-select
+- Custom gizmo (R/G/B arrows + cones, SDPG_Foreground, constant screen size)
 - Translate/Rotate/Scale via gizmo drag, hotkeys E/R/T
-- Snap to ground (End key), soft-delete (Delete key)
-- Undo/Redo system: custom UndoManager, Ctrl+Z / Ctrl+Y, 50 action stack
-- Properties panel: editable Location/Rotation/Scale fields
-- Toolbar: mode buttons + snap ground
-- Material: M_PS_Editor_Gizmo (Unlit, Vector Parameter "Color" → Emissive, Translucent, Disable Depth Test)
+- Snap to ground (End), soft-delete (Delete + confirmation dialog)
+- Undo/Redo (Ctrl+Z/Y, 50 action stack)
+- Properties panel + toolbar UI
+- Material: M_PS_Editor_Gizmo (Unlit, "Color" param, Translucent, Disable Depth Test)
 
-## Next: Phase 3 - Object Spawning
-- Catalog/list of objects to place
-- Drag & drop or click to spawn
-- Duplication of existing objects
+### Phase 3 - Object Spawning
+- SpawnableComponent: marker on BPs (name, category, thumbnail)
+- SpawnCatalog DataAsset + Factory for easy creation
+- SpawnManager: spawns in front of camera, tracks all spawned actors
+- Catalogue UI: thumbnail cards, click to spawn, grouped by category
+- CaptureAllThumbnails on DataAsset: auto-generates from UE thumbnails
+- Spawn undo/redo, auto-deselect hidden actors
 
-## Next: Phase 4 - JSON Serialization
-- Save/load scenes as JSON
+### Phase 4 - JSON Serialization
+- SceneData USTRUCT (Version, SceneName, Timestamp, Actors[ClassPath, Location, Rotation, Scale])
+- SceneSerializer: Save/Load/Clear/GetSavedSceneNames
+- Files in Saved/PS_Editor/Scenes/{name}.json
+- UI: Save field + button, New Scene, saved scenes list with click-to-load
+
+## Next: Phase 5 - Advanced Editing
+- Splines, lighting, AI characters, property editing

Unreal/Plugins/PS_Editor/Source/PS_Editor/GameMode/PS_Editor_Pawn.cpp

@@ -1,6 +1,7 @@
 #include "PS_Editor_Pawn.h"
 #include "Camera/CameraComponent.h"
 #include "GameFramework/SpringArmComponent.h"
+#include "Components/PostProcessComponent.h"
 #include "EnhancedInputComponent.h"
 #include "EnhancedInputSubsystems.h"
 #include "InputAction.h"
@@ -31,11 +32,29 @@ APS_Editor_Pawn::APS_Editor_Pawn()
 
 	Camera = CreateDefaultSubobject<UCameraComponent>(TEXT("Camera"));
 	Camera->SetupAttachment(SpringArm);
+
+	OutlinePostProcess = CreateDefaultSubobject<UPostProcessComponent>(TEXT("OutlinePostProcess"));
+	OutlinePostProcess->SetupAttachment(RootScene);
+	OutlinePostProcess->bUnbound = true; // Apply to entire scene
 }
 
 void APS_Editor_Pawn::BeginPlay()
 {
 	Super::BeginPlay();
+
+	// Load outline post-process material
+	UMaterialInterface* OutlineMat = LoadObject<UMaterialInterface>(
+		nullptr, TEXT("/PS_Editor/M_PS_Editor_SelectionOutline.M_PS_Editor_SelectionOutline"));
+	if (OutlineMat && OutlinePostProcess)
+	{
+		OutlinePostProcess->Settings.WeightedBlendables.Array.Add(FWeightedBlendable(1.0f, OutlineMat));
+		UE_LOG(LogTemp, Log, TEXT("PS_Editor: Selection outline material loaded"));
+	}
+	else
+	{
+		UE_LOG(LogTemp, Warning, TEXT("PS_Editor: Outline material /PS_Editor/M_PS_Editor_SelectionOutline not found. "
+			"Create a Post Process material in Plugins/PS_Editor/Content/"));
+	}
 }
 
 void APS_Editor_Pawn::Tick(float DeltaTime)
@@ -53,22 +72,6 @@ void APS_Editor_Pawn::Tick(float DeltaTime)
 			UpdateGizmoHover();
 		}
 
-		// Draw debug bounding box around selected actors
-		if (APS_Editor_PlayerController* EditorPC = Cast<APS_Editor_PlayerController>(PC))
-		{
-			if (UPS_Editor_SelectionManager* SM = EditorPC->GetSelectionManager())
-			{
-				for (const TWeakObjectPtr<AActor>& Weak : SM->GetSelectedActors())
-				{
-					if (AActor* Actor = Weak.Get())
-					{
-						FVector Origin, Extent;
-						Actor->GetActorBounds(false, Origin, Extent);
-						DrawDebugBox(GetWorld(), Origin, Extent, FColor::Orange, false, -1.0f, 0, 2.0f);
-					}
-				}
-			}
-		}
 	}
 }
 

Unreal/Plugins/PS_Editor/Source/PS_Editor/GameMode/PS_Editor_Pawn.h

@@ -8,6 +8,7 @@
 
 class UCameraComponent;
 class USpringArmComponent;
+class UPostProcessComponent;
 class UInputAction;
 class UInputMappingContext;
 
@@ -73,6 +74,9 @@ protected:
 	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "Camera")
 	TObjectPtr<UCameraComponent> Camera;
 
+	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "Camera")
+	TObjectPtr<UPostProcessComponent> OutlinePostProcess;
+
 	// ---- Camera Settings ----
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Camera|Fly")