It just takes a list of 3d vertices and render them in 2d using sprites.
Implementing a full game using this technique would be really hard and slow but it can be nice for a title screen. I' thinking of using it to make a starfield
- Left button (hold): rotate object
- Right button (hold): move on XY plane
- mouse wheel: move on Z axis
- double click: Morph to next object
- middle click: reset position