3D Game Programming for Kids, 2nd Edition

Rendering Donuts (Not the Kind You Eat) with Torus

In 3D-programming-speak, a donut shape is called a torus. The simplest torus that we can create needs us to assign two values: one for the distance from the center to the outside edge, and the other for the thickness of the tube.

TorusGeometry(100, 25)

Type the following below your plane code:

​var​ shape = ​new​ THREE.TorusGeometry(100, 25);
​var​ cover = ​new​ THREE.MeshNormalMaterial(flat);
​var​ donut = ​new​ THREE.Mesh(shape, cover);
scene.add(donut);

You should see a very chunky donut:

By now you probably know how to make the donut less chunky.

TorusGeometry(100, ...