how to do pretty textures
maybe you create not only individual polygons with autogen texture.... the problem you get:
it is very dificult to control, where is the cut of the polygon, in relation to the texture-drawing. I mean, e.g. a street and a block of houses, the cut goes trough the house-block, it looks finally too artificial cutted...
to solve this, create own textures, (maybe with autogen-information), and use alpha-channels. With this technique, you define exactly, where the visual cut should be, by editing alphachannel in e.g. a PaintShop, Photoshop or photopaint (1. use an additional layer with black/with information; 2. save that layer only as "mask"; 3. and reload it again into the picture;4. then save that image "with mask" as TGA -enhanced (TGA -Format can save Alpha-Channel); 5. Convert that TGA into a "FS" -BMP (e.g. DTX1 or 32-bit BMP) with IMAGETOOL.EXE).
It's a significant more time-consuming work, but the results looks really good!
saludos
Francis