Faces are missing in the textured view I've downloaded a free 3d car model, and everything seems to be fine except one thing: the windows act very weirdly. When in texture view, some of the faces seem like they are missing, while in the non texture view the surface looks solid. The texture is a solid grey square. I'd be very appreciative if someone could help me to fix this. I provided a few screenshots, so it would be easier to understand the issue.

Non textured and textured views


This is how it's rendering in Blender AND on a game engine (very badly)
It was the issue with the normal vectors. I fixed that by flipping normals on the problem faces. Shame on me, I should have figured that out myself. Thank you, I appreciate your assistance.