Okay, what I'm about to ask for will probably sound retarted. I'm a major Maya newbie, I'm messing with it because my school has a lab license for it and I have an absurd amount of free time. Now onto the question...

Does Maya have the 3D equivilant of a "mask"?

Here's my example...



Now, is there a way to set things up so that sphere, when rendered, only "exists" within the boundaries of that cube?