Shader Fundamentals

This is your reference card for GLSL shader programming. It covers the vertex to fragment pipeline, data types with swizzling, the three variable qualifiers (uniforms from CPU, attributes per vertex, varyings interpolated between shaders), and the coordinate space transforms you'll chain together. The built-in functions section is practical, the UV patterns are copy-paste ready, and the debugging techniques (like visualizing normals as RGB) actually work. If you're writing custom materials in Three.js or debugging why your shader is black, this has the syntax and patterns you need without the theory lecture. Precision qualifiers, matrix transforms, and common gotchas are all here.

Install to Claude Code

npx -y skills add bbeierle12/skill-mcp-claude --skill shader-fundamentals --agent claude-code