Teensy little script that creates a geometry cone that mimics the camera cone. It creates a pyramid - and does some wiring to make it match the camera - and stay matched - even if you animate the position - and fov. The purpose of the geometry is to use in a mesh vol select to pass up the stack to modify an object/faces only when they are in view of the camera. For example - you could meshsmooth only the faces of objects you can see in the current frame - for speed. Obvious caveat is that shadows cast from that object into the visible scene will be incorrect - but I've found plenty of situations it works in - and you can always add one meshsmooth - add the volselect then another meshsmooth - to only save on the last step. As usual - case by case analysis then.