[MX]Collision detection in 3d perspective

[MikeMD]

There is nothing improper or sloppy about what I described.

What is improper is using 10 times the required code to do the same thing that can be done in a much simpler way, as it would be in original poster's example ( baseball / bat collision ).

Proper is whatever works.

You should google Raycasting. I hear thats what they use for most 3d games these days.

If he has to ask, how to check for 3D collision, don't you think it's a bit too much.

Nothing wrong with learning all these things, but they are not necessary for what he's asking. And in case of racing, do you want to have a game with "proper" collision detection that because of that can only handle 2-3 cars at a time and crawls along like most flash racers we see, or do you want to have something that feels fast and gets by on slightly "improper" collision detection?