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threejs-lighting

Configure Three.js lighting, shadows, helpers, and environment illumination.

Updated Apr 3, 2026
Search Tags:#three.js#helpers#lighting#shadows#ibl#environment-maps
One-click install
npx skills add https://github.com/norrbacka/threejs_codex_base --skill threejs-lighting-norrbacka
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: threejs-lighting
Source: https://github.com/norrbacka/threejs_codex_base/tree/main/.codex/skills/threejs-lighting
Command: npx skills add https://github.com/norrbacka/threejs_codex_base --skill threejs-lighting-norrbacka

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps you fix flat, muddy, or incorrect-looking Three.js scenes by providing reliable guidance for lighting, shadows, environment maps, and light debugging.

Core Features & Use Cases

  • Lighting Setup: Add and tune ambient, hemisphere, directional, point, spot, and rectangular area lights for the right scene mood.
  • Shadow Quality: Configure shadow casting, shadow maps, bias settings, and helper tools to improve realism and reduce artifacts.
  • Environment Illumination: Use HDR image-based lighting, cube textures, and light probes to make PBR materials respond more naturally.
  • Use Case: If a 3D scene looks flat in production, use this Skill to choose the right light mix, tighten shadows, and match the repo's Three.js version and import style.

Quick Start

Use the threejs-lighting skill to inspect my Three.js scene and recommend the best lighting, shadow, and environment setup for realistic results.

Frequently Asked Questions about threejs-lighting

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

FAQPage Schema
How do I fix flat or muddy lighting in a Three.js scene?▼

Fix flat Three.js lighting by adding a balanced mix of ambient, directional, and point lights, tuning shadow bias and shadow maps to reduce artifacts, and applying HDR environment maps so PBR materials respond naturally to scene illumination.

How do I optimize shadow quality and reduce artifacts in Three.js?▼

Optimize Three.js shadows by configuring shadow maps, adjusting bias settings, and using light helpers to visualize shadow camera bounds, which reduces visual artifacts and tightens shadow rendering for improved realism.

What is the best way to set up image-based lighting for Three.js PBR materials?▼

Set up image-based lighting in Three.js by loading HDR environment maps, applying cube textures, and using light probes to provide realistic ambient illumination so PBR materials reflect and respond naturally to the surrounding environment.

Can I use this Three.js lighting setup with framework-based projects?▼

Yes, the lighting setup applies to both vanilla Three.js and framework-based projects, matching the repository's Three.js version and import style to ensure correct light configuration, shadow optimization, and environment illumination integration.

Which Three.js light types should I use to control scene mood?▼

Control scene mood using Three.js ambient, hemisphere, directional, point, spot, and rectangular area lights, tuning each light type's intensity and position parameters to achieve the desired visual atmosphere and correct illumination balance.

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