Threejs Shaders

---
name: threejs-shaders
description: Three.js shaders - GLSL, ShaderMaterial, uniforms, custom effects. Use when creating custom visual effects, modifying vertices, writing fragment shaders, or extending built-in materials.
risk: critical
source: community
date_added: "2026-09-04"
---

# Three.js Shaders

## Detailed Guide

Read [the detailed guide](references/detailed-guide.md) before executing this skill. It retains the complete procedure and reference material. Treat its safety, prerequisites, and validation requirements as mandatory. For focused work, load the relevant sections; for end-to-end work, read the guide completely.

## When to Use
- You need custom shader logic in Three.js.
- The task involves `ShaderMaterial`, uniforms, GLSL, vertex deformation, or fragment-based effects.
- You are extending material behavior beyond what built-in materials provide.

## Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.