Gaffer

Unified C++/Slate editor panel for finding, organizing, inspecting, and keyframing every camera, light, and environment actor in your scene.

Gaffer is a feature-complete scene-actor management tool built entirely in C++ and Slate. It replaces the original Blueprint-based CameraController and LightController editor utility widgets with a single, dockable panel that covers cameras and lights together, adds structured keyframing integrated with Sequencer, and supports any actor class you register with it. Because it is editor-only, it has no footprint in packaged builds.

Features

• Filterable actor tree covering cameras, lights, environment actors, and custom registered classes
• Camera Inspector with eight keyframeable properties and a collapsible Advanced section
• Light Inspector with conditional shape sections that adapt to spot, point, rect, and directional light types
• Per-property keyframe buttons with four key modes, three interpolation modes, and three track-targeting strategies
• Auto-key mode that keys every value change automatically against the active Sequencer playhead
• Named actor groups with color, intensity scale, temperature offset, and color tint overrides
• Tag system with floating input dialog and tree filtering by tag
• Working Sets for saving and recalling actor selections
• Smart Filters by class, tag, group, or custom criteria
• Property Matrix for multi-actor property editing
• Coverage Map showing which actors are keyframed in the current sequence
• Environment Presets for saving and restoring environment lighting configurations
• Light Rigs for grouped light setups with stored transforms
• Custom class registration API for extending the actor tree to any AActor subclass

In This Section

• Overview — Architecture, module layout, inspector system, and keyframing pipeline
• Usage — Installation, panel navigation, inspecting cameras and lights, groups, tags, and working sets
• API Reference — Enums, classes, and key function signatures
• Changelog — Version history