threejs-shaders

Build custom GLSL shader effects with Three.js ShaderMaterial and RawShaderMaterial.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/hanzoai/video --skill threejs-shaders-hanzoai
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: threejs-shaders
Source: https://github.com/hanzoai/video/tree/main/.agents/skills/threejs-shaders
Command: npx skills add https://github.com/hanzoai/video --skill threejs-shaders-hanzoai

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Developers want to craft custom visual shader effects in Three.js without diving into low-level WebGL boilerplate, enabling rapid experimentation and production-ready visuals.

Core Features & Use Cases

  • ShaderMaterial and RawShaderMaterial usage to implement vertex/fragment GLSL shaders.
  • Uniforms, varying, and built-in Three.js integration to build dynamic materials.
  • Use cases include real-time visuals, post-processing-like effects, instanced shading, and educational shader demos.

Quick Start

Create a ShaderMaterial with a simple color uniform and a fragment shader that outputs that color.

Frequently Asked Questions about threejs-shaders

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

FAQPage Schema
How do I create custom GLSL shader effects in Three.js?

Build custom GLSL shader effects in Three.js by using ShaderMaterial or RawShaderMaterial to construct vertex and fragment shaders, define uniforms and varyings, and leverage built-in Three.js integration for dynamic real-time materials.

What is the difference between ShaderMaterial and RawShaderMaterial for Three.js shaders?

ShaderMaterial automatically injects Three.js built-in uniforms and attributes, while RawShaderMaterial provides a blank canvas requiring manual declaration of all GLSL variables, offering deeper control for custom real-time graphics rendering.

How do I pass uniforms and varyings to a Three.js fragment shader?

Pass uniforms and varyings to a Three.js fragment shader by defining them in the ShaderMaterial uniforms property and declaring matching GLSL variables, enabling dynamic data transfer from JavaScript to real-time shader-driven materials.

Can I use Three.js shaders for post-processing and interactive visuals?

Yes, Three.js shaders support post-processing-like effects, interactive real-time visuals, and instanced shading by leveraging GLSL fragment shaders, texture sampling, and ShaderMaterial uniforms across web projects and demos.

Do I need to know raw WebGL to build Three.js shader materials?

You do not need raw WebGL boilerplate to build Three.js shader materials, as ShaderMaterial handles integration, but you must understand GLSL syntax for vertex and fragment shaders, uniforms, and common shader patterns.