hyperpixel 0.1.0

a fast framebuffer in webgl using ThreeJS
Documentation

hyperpixel

An extremely fast pixel framebuffer using webgl via ThreeJS

Why is this fast?

Rendering literally just takes subview of wasm's memory and pushes it to the GPU via webgl to be rendered by an uber minimal shader for particles.

see the demo here

<canvas width="160" height="144" id="screen"></canvas>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/109/three.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/richardanaya/hyperpixel@v0.0.3/hyperpixel.js"></script>
<script>
  var hp = new HyperPixel(document.getElementById("screen"));
  function update(){
    window.requestAnimationFrame(update);
    for(var i = 0 ; i < hp.height*hp.width*3; i++){
      hp.colors[i] = Math.random()*.3;
    }
    hp.render();
  }
  update();
</script>

With Rust?

see the demo here

[dependencies]
hyperpixel = "0.1"
web_timer = "0.0.2" # for interacting with timing functions in browser
rand = "0.7.2" # for getting a psuedo random number generator
js_ffi = "0.1" # for creating the callback that gets sent into web_timer's `request_animation_loop`

use hyperpixel::*;
use rand::rngs::StdRng;
use rand::Rng;
use rand::SeedableRng;
use web_timer::*;
use js_ffi::*;

#[no_mangle]
pub fn main() -> () {
    let timer = Timer::default();
    let mut rng:StdRng = SeedableRng::from_seed([
        1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2,
        3, 4,
    ]);
    let framebuffer = HyperPixel::new("#screen");
    let (width,height) = framebuffer.dimensions()
    let mut pixels = vec![0.0_f32; width * height * 3];
    timer.request_animation_loop(create_callback_1(Box::new(move |delta_time| {
        for i in 0..pixels.len() {
            pixels[i] = rng.gen::<f32>()*.3;
        }
        framebuffer.render(&pixels)
    })))
}

License

This project is licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in hyperpixel by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.