Threejs Fundamentals

This covers the core Three.js classes you'll reach for in every project: scene setup, perspective and orthographic cameras, renderer configuration, and the Object3D hierarchy that everything inherits from. The examples show practical patterns like proper resize handling, pixel ratio capping, and the difference between local and world transforms. It's especially useful if you keep forgetting whether to call updateProjectionMatrix after changing camera properties or how to properly compose transformation matrices. The coordinate system reminder and math utilities section (Vector3, Matrix4, Quaternion) are handy references when you're deep in transform calculations. Solid foundation material that assumes you already know why you need Three.js.

Install to Claude Code

npx -y skills add cloudai-x/threejs-skills --skill threejs-fundamentals --agent claude-code