Game Level Creation

Hi, Im not sure if I should of put this in modelling, But since its more directed towards game creation iv put it here...sorry!

OK, well, I can model to a good level in maya. There are a few problems iv hit on the way.

  1. OK, Iv built my level, Now I want to select faces such as floors, walls. ect and tile map a texture. I have tried the information at the following URL http://smorigin.scm.cityu.edu.hk/intranet/lm3/docs/maya_games/http://smorigin.scm.cityu.edu.hk/intranet/...ocs/maya\_games/ But dont seem to be getting anywhere. I just want to select the faces in a room and texture it without it filling the rest of the mesh. I will also be putting the level into Gile[s] to lightmap it.

2.If I ever work out how to do the above, Will exporting screw up the texture mapping? I can only export to OBJ. Or convert it with Polytrans to 3DS. The idea I have is to put the level as a 3DS file and load it into Blitz3D so I can have a walk around or create a demo to display my low poly game art. I can UV map as I use Ultimate Unwrap3D once I have built my model. I just cant work out how to texture my level and export it so everything stays intact.

Well there the problems iv got myself into, I would be really greatfull if anyone has any pointers or solutions. If you have any links aimed towards Game Level Creation and Export I would be very greatfull! Thanks for your time!