I’ve learnt Processing JavaScript a little and have some complete projects. They are very simple but I think they are not ugly.
This is a 3D cube. You can view from any angle with your mouse dragging.
This is a 9 * 9 multiplication table.
This is a small ball imitating bouncing with gravity.
Because of some reason, the quality of the gif are not clear. The next post is some codes of the project.