Question: How do you generate a bounding box?

I am processing some Collada files for use in the Multiverse game engine (http://www.multiverse.net). Multiverse uses a simple collision volume system, and to add them to some models I have, I’d like to just find the bounding box for a Collada-based model.

Is there a simple or direct way to calculate the min/max XYZ values for all 3d model geometry?