Can't Put OnMouseOver on a 3ds max plane.

Hello, i’m having a sort of problem… Whenever i create a plane in 3DS max and then import it into Unity3d i can never apply a OnMouseOver function to the script that’s on the plane.

for instance:

I’m making a game where i need a grid and blah blah blah, Basically i made a script with a OnMouseOver function and when i applied it to the plane it didn’t work, but when i applied it to a cube or something like that it worked perfectly. The reason i need a plane from 3DS max is because it only has 4 polygons, the plane on unity has like 150 or something like that.

Thanks if you may know what’s happening :smiley:

OnMouseOver requires a collider. Add a box collider.