Replace emissive-only rendering with diffuse + lightmap system to achieve realistic lighting appearance without dynamic light overhead.
- Create LightmapGenerator class with canvas-based radial gradient generation
- Generate one lightmap per color (16 total) using top-left directional light simulation
- Cache lightmaps in static Map for reuse across all instances
- Preload all lightmaps at toolbox initialization for instant availability
- Update buildColor() to use diffuseColor + lightmapTexture instead of emissiveColor
- Update buildMissingMaterial() to use lightmap-based rendering
- Enable lighting calculations (disableLighting = false) to apply lightmaps
Lightmap details:
- 512x512 resolution RGBA textures
- Radial gradient: center (color × 1.5), mid (base color), edge (color × 0.3)
- Simulates top-left key light with smooth falloff
- Total memory: ~16 MB for all lightmaps
- Zero per-frame performance cost
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Refactored exit XR button creation from rigplatform to toolbox for better organization and UI cohesion.
- Add setXR() methods to DiagramManager, DiagramMenuManager, and Toolbox to pass WebXRDefaultExperience after initialization
- Create setupXRButton() in Toolbox class that creates button when entering XR
- Position button at bottom-right of toolbox (x: 0.5, y: -0.35, z: 0)
- Use Y-axis rotation (Math.PI) for correct orientation within toolbox coordinate system
- Scale button to 0.2 for appropriate size
- Remove button creation code from rigplatform
Exit button now moves with toolbox and is logically grouped with other UI elements.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
