Disco Ball

 1function setup() {
 2  let c = createCanvas(1024, 1024, WEBGL);
 3  noStroke();
 4  noLoop();
 5  
 6    //background(0);
 7  rotateY(HALF_PI * 0.1);
 8  rotateX(HALF_PI);
 9  emissiveMaterial(0);
10  sphere(399,24,24);
11  noStroke()
12  
13  const bands = 24;
14  const maxFacets = 48;
15  const minFacets = 0;
16  const radius = 400;
17
18  emissiveMaterial(255);
19  
20  for (let j = 0; j <= bands; j++) {
21    let normalizedBand = (j / bands) * PI - HALF_PI;
22    let interpolatedValue = sin(normalizedBand + HALF_PI);
23    
24    let facets = floor(interpolatedValue * (maxFacets - minFacets) + minFacets);
25    print(j, normalizedBand, interpolatedValue, facets)
26    
27    for (let i = 0; i < facets; i++) {
28      let lon = (i / facets) * TWO_PI;
29      let lat = (j / bands) * PI - HALF_PI;
30
31      let x = radius * cos(lat) * cos(lon);
32      let y = radius * cos(lat) * sin(lon);
33      let z = radius * sin(lat);
34
35      push();
36      translate(x, y, z);
37      rotateZ(lon);
38      rotateY(HALF_PI - lat);
39      plane(50,50);
40      pop();
41    }
42  }
43  
44saveCanvas(c, 'myCanvas', 'png');
45
46  
47}