Press the green flag to render the objects (It may freeze for a bit). If you want to modify the objects or the viewing position you will need to see inside and modify the values manually.
This is a 3D rendering engine that uses the ray marching technique (look it up if you want to know more). At the moment it can only render spheres, but multiple light sources can be put in. I'm not sure why the shadows on the sides of the spheres are the way they are. At the moment it is too slow to make a game, but I'm trying to figure out ways to make it faster. It uses an interesting system to use clones to calculate the values of multiple pixels at the same time, although that didn't make it faster because the clones are still calculated on a single thread. If you can think of any way to fix the problems or make it faster, put ideas in the comments, or try to remix the project yourself.