Changed from lightmapTexture with lighting enabled to emissiveTexture with lighting disabled for better performance. The new approach provides the same lighting illusion without expensive per-pixel lighting calculations.
- Added LightmapGenerator.ENABLED toggle for performance testing
- Updated buildColor.ts to use emissiveColor + emissiveTexture with disableLighting = true
- Updated buildMissingMaterial() to match new rendering approach
- Fixed buildTool.ts to access emissiveColor instead of diffuseColor for material color detection
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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>
Lighting changes:
- Disabled HemisphericLight in customEnvironment
- Changed all materials from diffuse to emissive colors
- Added disableLighting=true to all StandardMaterials
- Updated toolbox colors, diagram entities, and spinner
Bug fix:
- Fixed "Cannot read properties of undefined (reading 'pickedMesh')" error
- Added defensive check in DiagramObject.updateConnection()
- Now validates hit array has at least 2 elements before accessing
Materials now render at full brightness with unlit/flat shading.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
