function showcase(shapes) {
const scene = new ln.Scene();
const eye = new ln.Vector(3, 3, 3);
const center = new ln.Vector(0, 0, 0);
const up = new ln.Vector(0, 0, 1);
const height = 200;
const fovy = 40;
const znear = 0.1;
const zfar = 10;
const step = 0.01;
shapes.forEach((shape) => scene.add(shape));
const paths = scene.render(
eye,
center,
up,
width,
height,
fovy,
znear,
zfar,
step
);
return svg`${ln.toSVG(paths, width, height)}`;
}