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threejs-lighting

Implement Three.js lighting setups with diverse light types and shadow configuration.

2|1|Updated Mar 26, 2026
Search Tags:#rendering#webgl#threejs#lighting#shadows#ibl
One-click install
npx skills add https://github.com/huangzida/skills --skill threejs-lighting-huangzida
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: threejs-lighting
Source: https://github.com/huangzida/skills/tree/main/threejs-lighting
Command: npx skills add https://github.com/huangzida/skills --skill threejs-lighting-huangzida

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Three.js scene lighting is intricate and error-prone, making it hard to achieve consistent shadows, realistic shading, and believable environmental illumination.

Core Features & Use Cases

  • Comprehensive light types: Ambient, Hemisphere, Directional, Point, Spot, and RectArea lights with practical configuration guidance.
  • Shadow and performance guidance: Enable shadows, optimize shadow maps, and apply techniques like environment maps and IBL for realism.
  • End-to-end scene recipes: Ready-to-use lighting patterns for common scenes such as outdoor daylight, indoor studios, and product renders.

Quick Start

Set up a basic scene with ambient and directional lighting to see shadows and reflections.

Frequently Asked Questions about threejs-lighting

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

FAQPage Schema
How do I set up realistic Three.js lighting and shadows for a web scene?▼

To set up Three.js lighting and shadows, configure ambient and directional lights, enable shadow maps, and apply environment maps or IBL for realistic shading. You can use ready-to-use recipes for outdoor daylight, indoor studios, and product renders.

What is the best way to configure different light types in Three.js?▼

The best way to configure Three.js light types is to combine ambient or hemisphere lights for base illumination with directional or point lights for distinct shadows. RectArea lights provide realistic window-like lighting, while spot lights create focused beams.

How do I use Image-Based Lighting (IBL) and light probes in WebGL?▼

IBL and light probes in WebGL use cube maps and environment maps to capture surrounding light information, applying it to materials for realistic reflections. This provides accurate environmental illumination without needing numerous direct light sources.

Can I optimize shadow maps for better performance in Three.js games?▼

Yes, you can optimize shadow maps in Three.js games by adjusting shadow map resolution, configuring shadow camera frustums, and using appropriate light types. Proper shadow configuration balances visual fidelity with real-time rendering performance.

Why do my Three.js shadows look inconsistent and error-prone?▼

Three.js shadows often look inconsistent due to incorrect shadow camera bounds, low shadow map resolution, or mismatched light configurations. Applying proper shadow configuration and environment lighting techniques fixes these shading errors.

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