Over the last years I developed a rendering engine which is now implemented in FastLED.
It is meant to be a modular rendering pipleline. It also comes with a bunch of presets to showcase what you can do with it. It mainly focusses on polar math and domain warping techniques.
My original Github repo also still exists.
Here is a Youtube playlist featuring some of the presets.
If you happen to use AnimARTrix for your own projects, please share videos and pictures of it.
I enjoy & love to see what people create with it!