3D engine by @MathMathMath Realistic Bouncing by @HoleeCows, which I edited into 3D The rendering script is 100% by me (not the custom block, the inputs for the custom block). I swear. I even figured out what sin and cos are this summer so I didn't copy anything there. This is for my real account, @triskedekaphobia. I am making a 3D tennis game.