With this project you can plot 3d graphs. Click 'see inside', go to the 'draw' sprite and insert your function of x and y. Maybe I will create an interface so you don't have to click 'see inside' at a later point, but I am not quite sure yet. This 3d plotter is far from perfect, there are still many bugs, but this is just a test.
I got this idea when I was plotting 3d functions in wolfram alpha, I wanted to try to make my own 3d plotter in scratch. Feedback is welcome, I know there is still a lot to improve. !!! Use turbo modus when plotting your graph, otherwise it will take a long time !!!