Are bounding volumes created by artists? I'm interested in where in the tool chain bounding boxes are created. Are they made by the artists? In the modeling tool? How are they exported? Can Maya 3DS Max Blender ... mark geometry as bounding box? How does that work in Collada FBX?) Or is there a tool which calculates them? Are they calculated at run time? I basically know how bounding volumes work, but I'm a little bit confused on where to get them from.