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CesarG503
CesarG503COMMUNITY
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threejs-lighting

Implement and optimize lighting and shadow techniques in Three.js scenes.

1|Updated Dec 6, 2025
Search Tags:#webgl#three.js#3d graphics#lighting#shadows#ibl
One-click install
npx skills add https://github.com/CesarG503/THREE-game --skill threejs-lighting-cesarg503
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: threejs-lighting
Source: https://github.com/CesarG503/THREE-game/tree/main/.agent/skills/threejs-skills/threejs-lighting
Command: npx skills add https://github.com/CesarG503/THREE-game --skill threejs-lighting-cesarg503

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers understand and implement various lighting techniques and shadow rendering in Three.js, crucial for creating realistic 3D scenes.

Core Features & Use Cases

  • Light Types: Explore Ambient, Hemisphere, Directional, Point, Spot, and RectArea lights.
  • Shadows: Configure and optimize shadow casting and receiving for different light types.
  • Environment Lighting: Implement Image-Based Lighting (IBL) using HDR maps for realistic reflections and ambient light.
  • Use Case: Add realistic sunlight and shadows to a 3D architectural model, or set up studio lighting for product visualization.

Quick Start

Use the threejs-lighting skill to add a directional light with shadows to your Three.js scene.

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 Three.js lighting and shadows for a 3D scene?▼

Three.js supports multiple light types including Ambient, Hemisphere, Directional, Point, Spot, and RectArea lights. This skill explains how to choose and configure each type to achieve realistic illumination and ambient effects in WebGL scenes.

What is the best way to implement Image-Based Lighting with HDR maps in Three.js?▼

Image-Based Lighting (IBL) in Three.js uses HDR environment maps to generate realistic reflections and ambient lighting. This skill covers how to load and apply HDR maps to achieve accurate material reflections in your 3D scene.

How do I optimize shadow map performance in Three.js?▼

Optimizing shadow maps in Three.js requires configuring shadow camera bounds and map resolution. This skill provides performance tips for shadow rendering to maintain high frame rates in 3D graphics applications.

Can I use Three.js lighting for architectural visualization and product rendering?▼

Three.js lighting is suitable for architectural visualization and product rendering. This skill provides use cases for adding realistic sunlight to models and setting up studio lighting for product visualization.

Why are my Three.js shadows not rendering correctly?▼

Three.js shadows may fail to render if shadow casting and receiving are not enabled on meshes or if the light's shadow camera frustum is misconfigured. This skill helps troubleshoot and optimize shadow map settings.

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