Genarrative/.codex/plugins/game-studio/references/threejs-stack.md

Three.js Stack

This is the default non-React 3D runtime stack for the plugin.

Primary components

• Three.js documentation for the core renderer, scene graph, materials, cameras, loaders, and examples.
• Rapier JavaScript guide for physics integration.
• glTF 2.0 specification for the default shipping asset format.
• glTF Transform for optimization, packaging, and compression workflows.
• SpectorJS for WebGL frame capture and GPU debugging.

Default stack choices

• Runtime: three
• Tooling: TypeScript + Vite
• Assets: GLB or glTF 2.0
• Loaders: GLTFLoader, DRACOLoader, KTX2Loader when the asset pipeline requires them
• Physics: Rapier JS
• UI: DOM overlays, not in-scene UI by default

Choose this stack when

• the project is not React-first
• the team wants direct control over the render loop
• scene composition, loader setup, or custom render behavior needs imperative structure
• the game code should feel engine-like without a React abstraction layer

Avoid this stack when

• the surrounding app is already React-heavy and wants shared declarative state
• the project needs an editor-first engine workflow more than a portable TypeScript runtime

Companion references

• three-webgl-architecture.md
• threejs-vanilla-starter.md
• gltf-loading-starter.md
• rapier-integration-starter.md
• web-3d-asset-pipeline.md
• webgl-debugging-and-performance.md