I've built a game with a friend and all goes well until there are too many spheres under a group of 5 lights, then things start getting choppy.
I've found that by turning off all of these lights but one the game runs smoothly, the problem is that the shadows are not realistic at all. Because of the 4 main lights, the objects should have four main shadows.
I wanted to use a "projector" but that is too static for multiple & random appearing / disappearing objects. I might be able to do a projector per sphere but I'm hoping there is an easier way as this would require a lot of work to get just right.
How can I get 4 lights to cast a raycast shadow on a group of dynamically moving spheres (100 of them) without processing the light portion?