http://rattle.from-hell.net/spring/madness.wings
They're no s3os, I know. The objects are fully uv mapped though.
Alright some simple steps on how to do it yourself:
First get
wings - it's free - then get
upspring.
Once Wings3D is running, setup your workspace to have a geometry window, the geometry graph and the outliner (from the Window menu).
In the Geometry Graph you'll see all four objects. Left and right click on one of the little eye symbols, you'll see what happens. Simply hide all the others you don't want to see because the models are all in the center (to make exporting them easier).
Still in the Geo. Graph, left click on the pyramid symbol left from one pieces name. Now it should be highlighted in red. Now go to "File -> Export Selected -> Wavefront (.obj)". Repeat this until all of the pieces have been exported.
PS: You don't need to keep the .mtl files which are created as well, they aren't used later.
Now work through
Das Bruce's tutorial and fire up upspring. You can skip most of the tutorial up to the set the model up in upspring part. Note that upspring recieved some updates lately so some parts (setting up origins especially) are outdated.
Once you are done importing ONE of the .objs in uspring you may resize taht model to your likes (by using the Uniform scale button, for instance). I usually scale all of my models up by 5 times, wings exports are tiny (you can set an export scaler though, forgot about that).
Don't forget about the hitsphere in the model tab. Just hit estimate under the radius option and leave out the other one to determine the model's center point, isn't all that important.
Now to make the sphere as tall as a pewee, extract a PW 3do from XTA/AA/what ever and load it up in upspring.
In the view port right click on the text saying 3D and enable "Draw model radius+height". Now just fill in a value for height and watch the yellow line. You can use this to see how big your sphere is and resize it accordingly until it fits. Just use the same.
At last use "File -> Save as" to save your model as s3o. Upspring is a bit picky about the filename so append .s3o to the end.
Now for the textures, if you want them all solid team colour simply create a 1x1 pixel png graphic with an alpha channel. The alpha should be 255 white, RGB simply black. Dunno if 1x1 px textures work but you won't need more anyway. The models are uvmapped though if you want to skin them later.
Hope that's of any help to get you started. Even if you don't know your way around modeling, you should get familiar with upspring anyway.
