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threejs-lighting

Configure and optimize Three.js lighting, shadows, and environment lighting.

Updated Jan 31, 2026
Search Tags:#rendering#webgl#threejs#lighting#shadows#ibl
One-click install
npx skills add https://github.com/Clinscott/CStar --skill threejs-lighting-clinscott
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: threejs-lighting
Source: https://github.com/Clinscott/CStar/tree/main/skills_db/threejs-skills/skills/threejs-lighting
Command: npx skills add https://github.com/Clinscott/CStar --skill threejs-lighting-clinscott

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Three.js projects often struggle to achieve realistic lighting, shadows, and environment lighting without a clear, consolidated guide.

Core Features & Use Cases

  • Understand and implement AmbientLight, DirectionalLight, PointLight, SpotLight, and RectAreaLight with proper shadows.
  • Configure Image-Based Lighting (IBL) and environment maps to enhance material realism.
  • Apply common lighting setups (Three-Point, outdoor daylight, indoor studio) to accelerate scene setup.

Quick Start

Initialize a basic scene with ambient and directional lights to establish a foundational lighting setup.

Frequently Asked Questions about threejs-lighting

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

FAQPage Schema
How do I configure realistic lighting and shadows in Three.js?▼

To configure Three.js lighting, combine AmbientLight and DirectionalLight with proper shadow maps to establish a foundational setup. This approach applies common lighting techniques to deliver high-quality, realistic scene rendering.

What is Image-Based Lighting (IBL) and how do I use it in Three.js?▼

Image-Based Lighting (IBL) uses environment maps to enhance material realism in Three.js. You apply IBL by configuring environment lighting to simulate complex real-world light reflections across your scene objects.

What's the best way to set up a Three-Point lighting system in WebGL?▼

The best way to set up Three-Point lighting in WebGL is applying a common lighting setup using Three.js light types. This accelerates scene setup by properly positioning key, fill, and back lights to achieve balanced illumination.

Does Three.js support basic ambient and directional lights for quick scene initialization?▼

Yes, Three.js supports quick scene initialization using AmbientLight and DirectionalLight. This provides a foundational lighting setup that establishes basic illumination before adding complex shadows or environment maps.

Why do my Three.js shadows look unrealistic and how can I optimize them?▼

Unrealistic Three.js shadows occur when shadow maps are improperly configured. You optimize them by enforcing comprehensive guidance on shadow configuration and applying performance considerations to deliver high-quality, realistic results.

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