Ok heres my question.
I toke the tutorial on facemaking, so i decided to try it out in the game engine.I Vertic painted the whole thing skin colour, and twosided faces
but when i press alt z some of the faces are black and some are skin colour.
I figured out that if I select a black face and flip normals it turns skin colour,but i got 1000 faces and i dont want to do each face one by one.
Plus if i select all the faces and click flip normals the ones that are black turn skin and the ones that are skin turn black.
So how do you have all faces that one colour?