Making Rust and OpenGL kiss

Passing data between Rust and OpenGL is error-prone and mistakes can be hard to debug.

This crate provides compile-time conversion of GLSL constructs to Rust based on the glam crate.

[dependencies]
glrs = "0.1"

Only tested on rustc 1.75, MSRV may be lower.

Roadmap

• Layout aware importing
  • Add padding bytes according to GLSL spec's defined layout modes
• Structs
  • Basic struct importing
  • Nested struct importing?
• Uniforms
  • Single file uniforms importing
  • Full shader chain uniforms checking and importing
• Defines
  • Single file defines importing (possible collisions when importing from multiple ones)
• Interface blocks

Importing a struct

shaders/utils.glsl

struct Player {
  vec3 pos;
  vec3 speed;
};

src/main.rs

#[glrs::import(path = "shaders/utils.glsl", name = "Player")]
#[derive(Debug)]
struct GlPlayer;

fn main() {
    dbg!(GlPlayer {
        pos: glam::vec3(0., 0., 0.),
        speed: glam::vec3(0., 0., 0.),
    });
}