Platformer physics problem

[badescuga]

Hello! I wish to make a NGUI platformer, so i need to be able to add physics to my game. I have some problems with implementing this in unity. I have added rigidbody to each sprite, but that isn't enough. In 3d i also need to add a mesh filter so that the rigidbody is applied to 'something'. How do i do this in NGUI? The sprites don't have mesh filters?

I've done another experiment and have seen that if the sprites have rigidbodies and box colliders and i place a 3d terrain under, they will interract with the terrain (not pass through it) but will not interract with each other (i.e. pass one through another). Why is this?

[ArenMook]

Physics needs a collider to work with. No collider = no physics, rigidbody or not. With sprites this generally means adding a box collider.

[badescuga]

ok, so why don't my sprites react to each other (i.e. pass through each other) and how can i make this work?

[ArenMook]

The colliders must be actual colliders, not triggers. You must also set up the collision matrix in physics properties.

This is a Unity question rather than an NGUI question.

[badescuga]

thanks! the problem was the size of the colliders, it was too small