Property Editing:
- New EditableComponent with two-step dropdown (Select Component → Add Property)
to declare which properties are exposed in the runtime editor
- Dynamic property panel below Transform: supports float, bool, string, FVector,
FRotator, FLinearColor with per-tick refresh and keyboard focus guard
- PropertyAction undo/redo via ExportText/ImportText reflection
- Custom properties serialized to JSON (TMap in ActorData, version 2)
- Copy/paste/duplicate propagate custom property values
Scene Outliner:
- Scrollable list of spawned actors in the right panel
- Click to select, selected actor highlighted in blue
- Auto-refreshes when actors are added/removed
Selection Filter:
- Only actors spawned by the editor (catalogue, duplicate, paste, load)
are selectable — static scene geometry is no longer clickable
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Duplicate clones selected actors with a small offset and selects the copies.
Copy stores actor class and relative transforms in an internal clipboard.
Paste spawns clipboard contents in front of the camera preserving relative positions.
All operations are tracked by SpawnManager and fully undoable/redoable.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
The magnitude+sign approach caused confusing direction changes.
Back to perpendicular-only: only the mouse axis perpendicular to
the projected rotation axis drives rotation.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
World/Local:
- Toggle button in toolbar (World/Local)
- Local mode: translate/rotate gizmo aligns with actor's local axes
- Rotation arcs dynamically follow local orientation during drag
- Scale always in local space
- RefreshGizmoOrientation after every drag completion
Snap System:
- Toggle button + configurable value field in toolbar
- Translation: snaps displacement along axis (no world-grid staircase)
- Rotation: snaps accumulated angle to nearest increment
- Scale: snaps scale values
Rotation improvements:
- Screen-space direction with magnitude-based speed (all mouse axes contribute)
- Fixed axis direction stored at drag start (prevents feedback loop)
- Smooth fallback when camera looks along rotation axis
- Keyboard shortcuts: Z/E/R (AZERTY convention)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Rotation gizmo:
- Quarter-arc rings via UProceduralMeshComponent (3D solid with depth)
- Dynamic arc facing: arcs flip to face camera based on octant
- Grey guide lines from center to arc endpoints
- Screen-space rotation direction (correct from any camera angle)
Scale gizmo:
- Arrow shafts + cube tips for per-axis scale
- Center cube (grey) for uniform XYZ scale
- Local space orientation (gizmo aligns with actor rotation)
Other:
- Runtime confirmation dialog (replaces FMessageDialog)
- ProceduralMeshComponent plugin dependency added
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Selection Outline:
- Post-process material auto-generated in C++ (no manual UE editor work)
- 8-neighbor edge detection on CustomStencil buffer
- Dynamic pixel-accurate offsets via SceneTexture InvSize (any resolution/ratio)
- Lerp blending (no overexposure), color AF1500, 1px thickness
- BL_SceneColorAfterDOF placement (before TAA, matches stencil resolution)
- Deferred creation via OnPostEngineInit (no startup crash)
- Material saved as persistent .uasset, loaded at runtime
Gizmo Polish:
- Arrow shaft thickness halved (0.03), cone tips halved (0.075x0.1)
- Gizmo stays at initial position during rotation/scale (no jitter)
- Gizmo follows selection during translation
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- 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>
Serialization:
- SceneData USTRUCT with Version, SceneName, Timestamp, Actors array
- ActorData: ClassPath, Location, Rotation, Scale per spawned actor
- SceneSerializer: SaveScene/LoadScene/ClearScene/GetSavedSceneNames
- Files stored in Saved/PS_Editor/Scenes/{name}.json
- Uses FJsonObjectConverter for clean USTRUCT-to-JSON conversion
SpawnManager:
- Tracks all spawned actors in SpawnedActors array
- SpawnActorDirect: spawn from class/transform (used by scene loading)
- DestroyAllSpawnedActors: clean scene clear
UI:
- Save field + button in toolbar area
- New Scene button to clear all spawned actors
- Saved scenes list with click-to-load
- Auto-refreshes scene list after save
- Clears selection on load/new
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Spawn System:
- SpawnableComponent: marker component for Blueprint actors (name, category, thumbnail)
- SpawnCatalog DataAsset: lists all spawnable Blueprints with Factory for easy creation
- SpawnManager: loads catalog, spawns actors in front of camera, ensures Movable mobility
- Reads metadata from Blueprint component templates (no temp spawn needed)
Catalogue UI:
- Left panel with scrollable list grouped by category
- Thumbnail cards (80x80) with name below, click to spawn
- "Capture All Thumbnails" button on DataAsset: auto-generates from UE thumbnails
Undo/Redo improvements:
- SpawnAction: undo hides spawned actor, redo shows it
- Delete confirmation dialog (Yes/No) before soft-delete
- Undo/redo auto-deselects hidden actors and refreshes gizmo
- Proper cleanup of hidden actors when actions pruned from stack
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Undo/Redo:
- Custom runtime UndoManager (UE transaction system is editor-only)
- Ctrl+Z / Ctrl+Y hotkeys, action stack with 50 history limit
- Records: gizmo translate/rotate/scale, snap to ground, UI edits
- Soft-delete on Delete key (hide actor, undo restores it)
- Gizmo follows restored position on undo/redo
UI:
- Properties panel (right side): editable Location/Rotation/Scale fields
- Real-time updates during gizmo drag, manual input with Enter to apply
- Toolbar: Translate(E)/Rotate(R)/Scale(T) buttons + Snap Ground
- Mode indicator in title bar, updated help text with all shortcuts
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- End key snaps selected actors to ground (downward trace + bounds offset)
- Rotate/Scale now use screen-space mouse delta (X+Y combined) for intuitive control
- Accumulator-based drag for smooth incremental rotation and scaling
- Fixed rotation drag plane (perpendicular to axis instead of parallel)
- Movement: arrows + A (up) / Q (down), letter keys freed for hotkeys
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- E/R/T hotkeys to switch Translate/Rotate/Scale modes
- Rotate: drag gizmo axis to rotate selection around that axis
- Scale: drag gizmo axis to scale selection on that axis
- Delete key to destroy selected actors
- Movement keys: arrows only + A (up) / Q (down)
- Removed ZQSD movement to free letter keys for hotkeys
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Click+drag on gizmo arrows to translate selected actors along axis
- Drag plane computation based on axis direction and camera orientation
- Axis-constrained movement with initial transform preservation
- Hover highlighting: gizmo arrows turn yellow on mouse-over
- Sphere sweep for easier gizmo clicking (generous hit radius)
- UE editor-style gizmo colors (dark red/green/blue)
- Fixed gizmo visibility toggle (component-level instead of actor-level)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Click-to-select with raycast (Movable actors only)
- Ctrl+click for multi-select, click empty to deselect
- Click vs drag detection (pixel threshold) to avoid accidental selection
- SelectionManager owned by PlayerController with OnSelectionChanged delegate
- Custom depth stencil toggling on selected actors
- Debug bounding box visualization for selection
- Custom translate gizmo actor with colored arrows (R/G/B) and cone tips
- Gizmo renders on top of scene (SDPG_Foreground + Translucent depth test disabled)
- Constant screen-size gizmo scaling based on camera distance
- Unlit gizmo material with Color vector parameter (M_PS_Editor_Gizmo)
- r.CustomDepth=3 enabled for future outline post-process
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Runtime editor plugin with UE viewport-style camera controls:
- ZQSD/Arrows movement (always active), E/A for up/down
- LMB: pan (horizontal move + yaw), RMB: free fly look
- Alt+LMB / MMB: orbit around focal point, scroll: zoom
- HUD with controls help, cursor auto-hide during camera ops
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
