Webgpu Threejs Tsl Skill for Claude

Comprehensive guide for developing WebGPU-enabled Three.js applications using TSL (Three.js Shading Language). Covers WebGPU renderer setup, TSL syntax and node materials, compute shaders, post-processing effects, and WGSL integration. Use this skill when working with Three.js WebGPU, TSL shaders, node materials, or GPU compute in Three.js.

31k tokens

context cost

the whole folder, loaded on every use

files

ships runnable scripts

copies elsewhere

how many repositories repackaged it

1124

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/dgreenheck/webgpu-claude-skill --skill webgpu-threejs-tsl

The instruction itself

14 sections, as written by the author

WebGPU Three.js with TSL

TSL (Three.js Shading Language) is a node-based shader abstraction that lets you write GPU shaders in JavaScript instead of GLSL/WGSL strings.

Quick Start

import * as THREE from 'three/webgpu';
import { color, time, oscSine } from 'three/tsl';

const renderer = new THREE.WebGPURenderer();
await renderer.init();

const material = new THREE.MeshStandardNodeMaterial();
material.colorNode = color(0xff0000).mul(oscSine(time));

Skill Contents

Documentation

docs/core-concepts.md - Types, operators, uniforms, control flow
docs/materials.md - Node materials and all properties
docs/compute-shaders.md - GPU compute with instanced arrays
docs/post-processing.md - Built-in and custom effects
docs/wgsl-integration.md - Custom WGSL functions
docs/device-loss.md - Handling GPU device loss and recovery
docs/limits-and-features.md - WebGPU device limits and optional features

Examples

examples/basic-setup.js - Minimal WebGPU project
examples/custom-material.js - Custom shader material
examples/particle-system.js - GPU compute particles
examples/post-processing.js - Effect pipeline
examples/earth-shader.js - Complete Earth with atmosphere

Templates

templates/webgpu-project.js - Starter project template
templates/compute-shader.js - Compute shader template

Reference

REFERENCE.md - Quick reference cheatsheet

Key Concepts

Import Pattern

// Always use the WebGPU entry point
import * as THREE from 'three/webgpu';
import { /* TSL functions */ } from 'three/tsl';

Node Materials

Replace standard material properties with TSL nodes:

material.colorNode = texture(map);        // instead of material.map
material.roughnessNode = float(0.5);      // instead of material.roughness
material.positionNode = displaced;         // vertex displacement

Method Chaining

TSL uses method chaining for operations:

// Instead of: sin(time * 2.0 + offset) * 0.5 + 0.5
time.mul(2.0).add(offset).sin().mul(0.5).add(0.5)

Custom Functions

Use Fn() for reusable shader logic:

const fresnel = Fn(([power = 2.0]) => {
  const nDotV = normalWorld.dot(viewDir).saturate();
  return float(1.0).sub(nDotV).pow(power);
});

When to Use This Skill

Setting up Three.js with WebGPU renderer
Creating custom shader materials with TSL
Writing GPU compute shaders
Building post-processing pipelines
Migrating from GLSL to TSL
Implementing visual effects (particles, water, terrain, etc.)

Resources

Three.js TSL Wiki
WebGPU Examples (files prefixed with webgpu_)

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How to use it

Copy the folder

Take dgreenheck/webgpu-threejs-tsl from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.