On 7/13/26 5:47 PM, Felipe Tavares wrote:
Hi all,
https://git.sr.ht/~felipetavares/rats
I wrote a raytracer in Guile over this past weekend, and week prior that,
really. Thought it might interest some of you.
It contains a simple Wayland client, largely based on the work from Philippe
Gaultier (https://gaultier.github.io/blog/wayland_from_scratch.html). It is
mostly self-contained in the wayland/ subdirectory, and depends only on libc
for some syscalls.
Other than that it's just a standard basic raytracer, mostly built out of guess
work and Wikipedia. These are the pages I had open after finishing:
- https://en.wikipedia.org/wiki/Ray_tracing_(graphics)
- https://en.wikipedia.org/wiki/Reflection_(mathematics)
- https://en.wikipedia.org/wiki/Snell's_law#Vector_form
- https://en.wikipedia.org/wiki/Specular_reflection
- https://en.wikipedia.org/wiki/Line%E2%80%93plane_intersection
- https://en.wikipedia.org/wiki/Line%E2%80%93sphere_intersection
- https://en.wikipedia.org/wiki/Matrix_multiplication
- https://simple.wikipedia.org/wiki/Dot_product
Of course, coupled with the Guile reference manual itself:
https://doc.guix.gnu.org/guile/latest/en/guile.html.
Best,
Felipe
If you are interested, I wrote similar project.
The only C code is to implement mmap, sendmsg and recvmsg in guile.
https://github.com/mwette/guile-wl-play
