Ritmolux

A music visualizer that listens to whatever you are playing, and draws to it.

Download

Start here

The repository

Ritmolux runs as a standalone app on Windows and macOS, or as a foobar2000 component. It reads the audio, not a file — so it draws to a browser tab, a game, or a music player just the same. Every look it ships is a preset: a text file you can open, read, and change.

What it looks like

One frame from each rendering system. Every one of them is a preset.

The attractor rendering system — `attractor`

The emitter rendering system — `emitter`

The fragment_field rendering system — `fragment_field`

The lsystem rendering system — `lsystem`

The parametric_curve rendering system — `parametric_curve`

The reaction_diffusion rendering system — `reaction_diffusion`

The shape_collage rendering system — `shape_collage`

The shape_field rendering system — `shape_field`

The spectrum rendering system — `spectrum`

The star_pattern rendering system — `star_pattern`

The warp_mesh rendering system — `warp_mesh`

Get it and run it

Pick a download, unzip it, and run it — Start here says which build you want and what the first launch looks like on each platform. Nothing installs into the system.

Author presets

A preset is a text file. Start with the illustrated preset guide, reach for the expression language when a value should follow the music, and keep the parameter roster open beside it — every named parameter of every rendering system, searchable.

Understand and embed it

The measured budgets the whole thing is held to, the headless capture harness that renders a preset without a window, and the two seams that are contracts rather than code — the C ABI and ring determinism.

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