A comprehensive 4x4 matrix math library for 3D graphics, providing functions for perspective, orthographic, lookAt, rotation, translation, scaling, inversion, composition, and decomposition. It is self-contained, well-documented, and used across all lesson examples. Demonstrates clean functional API design with support for custom input types (Float32Array, Array, etc.). Easily extractable for any WebGL or 3D project.

A minimal, reusable utility module for common WebGL setup tasks: creating programs from shader sources, compiling shaders, and resizing the canvas to match its display size with HiDPI support. It is dependency-free, follows a simple functional pattern, and is used by nearly every lesson example. Demonstrates the pattern of capturing common boilerplate into a single utility file.

The main entry point for an interactive WebGL state diagram tool that wraps every GL function call to update a live UI showing the current state of textures, buffers, shaders, programs, VAOs, and framebuffers. It includes a stepper for executing code line-by-line, draggable panels, and support for both WebGL1 and WebGL2. Demonstrates advanced GL function wrapping, UI state management, and educational visualization patterns. Could be extracted as a standalone WebGL debugging tool.