threejs-fundamentals

Set up Three.js scenes, cameras, renderers, and object hierarchies for WebGL applications.

Updated Mar 14, 2026

Search Tags:#webgl #three.js #camera #renderer #transforms #3d-scene #object3d

Ready to run

npx skills add https://github.com/mitgar14/app-embebidos --skill threejs-fundamentals-mitgar14

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Please help me install this Agent Skill.
Skill: threejs-fundamentals
Source: https://github.com/mitgar14/app-embebidos/tree/main/.claude/skills/threejs-fundamentals
Command: npx skills add https://github.com/mitgar14/app-embebidos --skill threejs-fundamentals-mitgar14

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill removes the setup friction around Three.js by helping you create scenes, cameras, renderers, object hierarchies, and transforms correctly from the start.

Core Features & Use Cases

Scene setup: initialize Three.js scenes, cameras, renderers, lighting, and animation loops.
Object organization: manage Object3D, Group, and Mesh hierarchies for clean scene structure and reusable transforms.
Core math and rendering concepts: work with coordinate systems, vectors, matrices, quaternions, and responsive canvas resizing.
Use cases: build interactive product viewers, educational 3D demos, data visualizations, and other WebGL experiences that need reliable scene fundamentals.

Quick Start

Use this Skill to set up a new Three.js scene with a camera, renderer, and object hierarchy for an interactive web 3D application.

Frequently Asked Questions about threejs-fundamentals

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I set up a Three.js scene with a camera and renderer?▼

To set up a Three.js scene, you initialize the Scene, configure a PerspectiveCamera or OrthographicCamera, and create a WebGLRenderer to display your 3D objects. You also establish an animation loop to continuously render frames and update object transforms.

What is the best way to organize Object3D and Mesh hierarchies in WebGL projects?▼

Organizing Object3D and Mesh hierarchies in WebGL projects is best done using Three.js Groups to manage parent-child transforms. This approach allows clean scene structure, reusable coordinate transformations, and easier manipulation of complex object collections.

How do I handle responsive resizing for a Three.js canvas?▼

Handling responsive resizing for a Three.js canvas requires updating the camera aspect ratio and renderer size when the browser window changes. This ensures the 3D scene scales correctly across different viewport dimensions without distortion.

Does this approach support both PerspectiveCamera and OrthographicCamera for 3D applications?▼

Yes, the approach supports both PerspectiveCamera and OrthographicCamera configurations for 3D applications. PerspectiveCamera simulates real-world depth, while OrthographicCamera maintains parallel projection, useful for isometric data visualizations and technical demos.

When should I use quaternions and matrices for transform control in Three.js?▼

You should use quaternions and matrices for transform control in Three.js when managing complex rotations and coordinate system conversions. Quaternions prevent gimbal lock during animation loops, while matrices efficiently compound multiple transformations across Object3D hierarchies.