[unreliable info]
well, i'm a 3d noob, but as far as i can tell , a surface is like a series of tris that are on the 'same plane' with each other ie: they face the same direction
if you exported a model eg: as a 3ds, and it was a cube, each four-sided poly(=face of the cube) would be cut into two tris:
so then each set of two tris is a surface, and so there are six surfaces.
[/unreliable info]
well, i'm a 3d noob, but as far as i can tell , a surface is like a series of tris that are on the 'same plane' with each other ie: they face the same direction
if you exported a model eg: as a 3ds, and it was a cube, each four-sided poly(=face of the cube) would be cut into two tris:
so then each set of two tris is a surface, and so there are six surfaces.
[/unreliable info]