PurpleKingdomGames/ultraviolet
Examples can be found in the examples directory of this repo. You can use Ultraviolet to generate GLSL shader code for Indigo, and also for ShaderToy.
This program can be run as a Scala-Cli script from the examples and the output pasted into ShaderToy's editor. The code produced is almost the same as the default ShaderToy template, and when run, looks like this:
Pretty similar! And in fact, converting GLSL examples to Scala + Ultraviolet tends to be quite a straightforward and mechanical process. Much work has been done to make the syntax feel the same or better.
Ultraviolet is in early stage development. It appears to be working well but there will be many, many corner cases that haven't been found yet. Please report bugs and issues!
Right now, the goal is an almost like-for-like experience of writing GLSL (for WebGL) in Scala 3, in all it's very specific procedural glory. It includes a few quality of life improvements such as anonymous functions and function composition, but nothing fancy for now. You can even write unit tests!
The library may ultimately diverge from GLSL, and who knows what sort of problems have been caused by using GLSL as a starting point, but replacing GLSL with Scala GLSL-flavoured-shader-experience is the current goal.
