A deterministic pure Ruby ray tracer used as an rbgfx teaching example.

Flipbook encodes optimized GIF and APNG animations and reads composited GIF frames from Tessel images.

A small creative coding DSL backed by Tessel RGBA8 images.

Shader definitions, parameter metadata, CPU rendering, and WebGPU export.

BDF text rendering and layout on Tessel RGBA8 images.

Render Tessel images, graphics buffers, charts, and animations in terminals, IRB, Pry, and IRuby.

Channel and perceptual visual regression testing with PNG diffs.

A small pure Ruby image editor for color, filter, composite, annotation, and batch operations on PNG, PPM, and BMP images.

Small headless friendly widgets and a Tessel image renderer.