Blender: Backfaces? Huh?

[Roli Christinson]

Ok, so I've been hearing about backfaces. What are they? What do they do, and do they affect your track? Thanks.

[MonsterJam2008]

Backfaces, are basically what they are called. The face, or solid part is one the back or inside of a jump which causes wheel grabs and other glitches.

[Roli Christinson]

Wait, so do they appear randomly?

[Hot Shoe]

They appear if the face(s) have been flipped or reversed. You'll notice them if you're in textured/solid mode and see a gap in the faces that shouldn't be there. Easy fix is selecting the vertices associated with the flipped face, and either recalculate inside/outside or flip normals.

Edit mode/W/Flip normals.

[crazyman444]

Just to add to what Hot Shoe said here is a example with a ramp I made awhile back. You can seemly see through this jump but in fact you are looking at the backside of those faces, which is a untextured side. On bodies you have to model the inside so you do no see through it.