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threejs-fundamentals

Set up Three.js 3D scenes with Scene, Cameras, and WebGLRenderer.

2.9k|336|Updated Jan 19, 2026
Search Tags:#javascript#frontend development#webgl#three.js#3d graphics#scene setup
One-click install
npx skills add https://github.com/CloudAI-X/threejs-skills --skill threejs-fundamentals-cloudai-x
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: threejs-fundamentals
Source: https://github.com/CloudAI-X/threejs-skills/tree/main/skills/threejs-fundamentals
Command: npx skills add https://github.com/CloudAI-X/threejs-skills --skill threejs-fundamentals-cloudai-x

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides the foundational knowledge and code examples needed to set up and manage 3D scenes in Three.js, overcoming the initial complexity of its core components.

Core Features & Use Cases

  • Scene Creation: Understand and implement Scene, Camera, and WebGLRenderer.
  • Object Management: Learn about Object3D, Group, and Mesh for structuring your 3D world.
  • Coordinate Systems & Math: Grasp Three.js's right-handed system and utilize essential math utilities like Vector3 and Matrix4.
  • Use Case: Quickly scaffold a new Three.js project with a basic scene, a camera, a renderer, and a simple object, ready for further development.

Quick Start

Use the threejs-fundamentals skill to create a basic Three.js scene with a rotating cube, including lighting, camera setup, and a resize handler.

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 basic Three.js scene with a camera and WebGLRenderer?▼

To set up a Three.js scene, instantiate the Scene, Camera, and WebGLRenderer classes, then append the renderer's DOM element to your document to begin rendering 3D graphics.

What are the core components needed for initial Three.js project setup?▼

Initial Three.js project setup requires a Scene, a Camera for viewing, a WebGLRenderer for drawing, and an Object3D hierarchy like Mesh to structure your 3D world.

How does the Object3D hierarchy work in Three.js for grouping 3D objects?▼

The Object3D hierarchy in Three.js uses Group and Mesh classes to structure your 3D world, allowing parent-child transformations to propagate through the scene graph efficiently.

Do I need to understand coordinate systems and math utilities to use Three.js?▼

Yes, Three.js uses a right-handed coordinate system, and you need math utilities like Vector3 and Matrix4 for transformations and calculations within your 3D scene.

What is the difference between Perspective and Orthographic cameras in Three.js?▼

Three.js offers Perspective cameras for realistic depth perception and Orthographic cameras for uniform projection, allowing you to choose based on your 3D scene's visual requirements.

Can I use this Three.js scene setup to render a rotating cube with lighting?▼

Yes, you can scaffold a basic Three.js scene featuring a rotating cube, including lighting, camera setup, and a resize handler for responsive 3D graphics.

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