Processing Evolved

    function setup() {
        let canvas = createCanvas(600, 600, WEBGL);
        canvas.parent('animation-holder');
    resizeAnimation();
    resizeAnimation();
    resizeAnimation();
    }

    function draw() {
        background(150);
        rotateX(frameCount * 0.01);
        rotateY(frameCount * 0.01);
        rotateZ(frameCount * 0.01);
        noStroke();
        fill(255, 0, 0, 100);
        dodecahedron(200, 0, 0, 0);
        fill(255, 0, 0);
        dodecahedron(100, 0, 0, 0);
    }

    function dodecahedron(r, x, y, z) {
        push();
        translate(x, y, z);
        let radius = r * 0.61803399;
        let height = r * 1.07011925;
        beginShape();
        vertex(0, radius, height);
        vertex(0, -radius, height);
        vertex(0, -radius, -height);
        vertex(0, radius, -height);
        vertex(radius, height, 0);
        vertex(-radius, height, 0);
        vertex(-radius, -height, 0);
        vertex(radius, -height, 0);
        vertex(height, 0, radius);
        vertex(height, 0, -radius);
        vertex(-height, 0, -radius);
        vertex(-height, 0, radius);
        endShape(CLOSE);
        pop();
    }