question about car models & double sided faces

[joevenzon]

i thought a little bit more about this and i don't think you would want the collision box to encompass the wheels. the collision box is static (as is the body) but the wheel positions are not so if you enlarge the collision box you would sometimes get collisions when you shouldn't

Hmm, let's make sure we're talking about the same thing: what I meant was, you want the collision box to encompass the wheels on the forward/backward left/right axes, but not on the up/down axis.

Now, sure, sometimes you'd get collisions when you technically shouldn't, but that happens anyway since it's not like your car body is actually a box, and the error is small and not really a big deal.

The important thing is to make sure that the collision box will stop the wheels (which are just raycasts) from being able to get up on world geometry that they aren't supposed to, like walls and stuff.