donut.c

A spinning 3D terminal donut. Built in C with some basic 3D math and ASCII rendering.

The 'Problem'

This implementation works, but it's not perfect. The shading could be way better if we calculated surface normals instead of just using depth. The proportions might look a bit chunky compared to the classic donut.c. But hey—it's a solid learning project that covers the core concepts: parametric surfaces, 3D rotation matrices, perspective projection, and depth handling.

Building

gcc -o donut src/donut.c -lm
./donut

Press Ctrl+C to exit.