-Just a quick idea I had- Set the resolution and click the flag again to re-render. On turbowarp you can move in realtime using WASDQE and ARROW keys. Also, stop the program to see final render. Turbowarp link - https://turbowarp.org/444263092/fullscreen I apologise for it taking a while, but scratch is slow so it is expected. It has to raycast a large distance each pixel, so it isn't going to be fast.