Very sorry for the total noob question but I'm trying to evaluate NGUI ASAP to get the sale.
Following the tutorial, I just added a button using the wizard to my current project.
I have a main camera in the same position of NGUI camera, and it's viewing some 3d objects.
When I click the button, it works, but I'm getting a collision on the 3d object behind the button also. Any cues?