hotglsl

A simple crate for hotloading GLSL shaders as SPIR-V.

``rust fn main() { let shader_dir = std::path::Path::new(env!("CARGO_MANIFEST_DIR")) .join("examples") .join("shaders"); let watch = hotglsl::watch(&shader_dir).unwrap(); println!("Edit the shaders inexamples/shaders/`!"); loop { watch.await_event().unwrap();

    // On some OSes, a whole bunch of events will occur at once. Wait for
    // this to happen to avoid compiling our shader(s) twice unnecessarily.
    std::thread::sleep(std::time::Duration::from_millis(10));

    // Compile each shader that has been touched and produce the result.
    for (path, result) in watch.compile_touched().unwrap() {
        println!("Tried compiling {:?}:", path);
        match result {
            Ok(_spirv_bytes) => println!("  Success!"),
            Err(e) => println!("  Woopsie!\n{}", e),
        }
    }
}

} ```

Allows for watching one or more file and/or directory paths for GLSL shader file changes.

See the GLSL_EXTENSIONS const for supported GLSL extensions that will be watched. A hotglsl::Watch will ignore all events that don't involve a file with one of these extensions.

Uses the notify crate for file system events and the glsl-to-spirv crate for GLSL->SPIR-V compilation.