pakt20
See /software/p5js/pakt-februari/pakt20/ for a JavaScript version and /software/supercollider/februari-pakt/pakt20/ for accompanying sound code.
use nannou::prelude::*;
const N: u16 = 150;
fn main() {
nannou::sketch(view).size(640, 480).run();
}
fn view(app: &App, frame: Frame) {
let draw = app.draw();
let win = app.window_rect();
if frame.nth() == 0 {
frame.clear(BLACK);
}
let index = app.time * 60.0;
let spread = (index * 0.002).sin();
for i in 0..N {
let i = i as f32;
let tx = (0.012 * (index + (i * spread))).sin();
let ty = (0.014 * (index + (i * spread))).sin();
let tz = (0.016 * (index + (i * spread))).sin() * 0.5 + 0.5;
let p = pt2(
(tx + (index * 0.001).sin()).sin() * (tx.sin() * 0.001 + 1.0),
(ty + (index * 0.001 * i).cos()).sin() * (ty.cos() * 0.001 + 1.0),
) * win.wh()
* 0.46;
let q = pt2(
(ty + (index * 0.001).sin()).cos() * (tx.sin() * 0.001 + 1.0),
(tx + (index * 0.001 * i).cos()).sin() * (ty.cos() * 0.001 + 1.0),
) * win.wh()
* 0.36;
draw.scale_axes(vec3(1.0, -1.0, 1.0))
.line()
.points(p, q)
.color(rgba(tz, tz * 0.9, tz, 0.05));
}
draw.to_frame(app, &frame).unwrap();
}