Today I added zooming that works with scrolling up and scrolling down appropriately: when you scroll down, everything gets smaller, and when you scroll up, everything gets bigger. Mass and gravity, of course, stay the same.

I made sure that the sling function (basically spawning new orbitals) works flawlessly. Our aim function—which draws that mini press-and-drag indicator to make it easier to see where you are spawning orbitals—is also working with both camera differentiation and zoom differentiation.

This way, you can zoom all the way out and still spawn orbitals in the correct way, or zoom all the way in and spawn them super close up. All the physics and rendering works beautifully.