Volume of a 3D closed mesh car object

Question

I have a 3D closed mesh car object having a surface made up triangles. I want to calculate its volume, center of volume and inertia tensor.

Could you help me

<

Answer 1

Well, there isn't much information on the car being provided here - you should be able to break down the car into simpler shapes - the higher degree of approximation your require - the more simpler shapes you can break it into. (This could be difficult if the car is somehow dynamically generated and completely different every time ... but I don't see that situation making any sense).

This should help with finding the Inertial Tensor of various simpler shapes: http://www.gamedev.net/community/forums/topic.asp?topic_id=57001 , finding the volumes and the likes of things like spheres and cubes is pretty common knowledge so I won't bother linking that.