question about car models & double sided faces

[alex25]

You want to turn the "Double Sided" option off (it's the one in the Mesh menu next to the "No V.Normal Flip" button) because it seems to do weird things to the normals. VDrift will draw all faces as double sided anyway for cars, and will draw them that way for tracks too if "cull faces = off" in the track.txt file. I'm not sure if I answered your question....

this is for a track (bahrain which i am going to try to get permission to release). i want to make various faces double-sided (like the fence between the pit lane and the main track, the grandstand roof, and a few others).in the past i achieved a double-sided effect by making a copy of the face, flipping the normal for the copy but that seems to be kind of inefficient. anyway, blender seems to have the information to render faces twosided. maybe there is no way to get this passed to a joe object (and i rather not turn off cull faces) but it would be nice if we could. can we add this as an extra parameter in the list.txt file? (like blended transparent textures, etc.) so vdrift can render specific textures double-sided.

--alex--