🧊 3D, no library raw WebGL — the thing Three.js is made of

GPU-accelerated 3D has been in every browser since 2011. This cube is raw WebGL: two shaders compiled on the fly, one buffer of vertices, and a draw call per frame. Drag it.

Every 3D library you've heard of ultimately produces calls like the ones in this file's ~120 lines. Libraries are ergonomics, not magic.