When i use sketch up and i have done to make my track. I do the following procedure. (just off the top of my head so if i have typed any errors i am sorry)
- create textures in Photoshop. Ensure Textures are to the power of 2, and export both as a jpeg and .dds
- open sketch up and build your model, ensure that when you build your model that the faces are not blue in colour, they need to be white or grey. If this happens right click the face and select the option to 'reverse faces'
- add textures to model by going to FILE > IMPORT then choose your jpg file (ensure option is selected for import as texture), then place texture on face required.
- repeat step three for new textures. DO NOT USE GOOGLE's default textures.
- Once completed your 3D model in sketch up export to 3ds.
- Before the xpack can take your model, you need to convert the jpg files to .dds, to do this i used 3DSIMED, Import the model then press E. this shows the materials used in your model, you will have to click on each material, then choose edit and choose the corresponding .dds file. Ok that and then repeat for each and every material. Then export again as .3ds model.(uncheck the box for 8:3 texture names)
- Open xpacker and ensure that all your .dds files and .3ds file are in the same folder. import model and use in game!
cheers:
P.S
Also a great tip for anyone that wants to use sketch up:
firstly download and install version 6 (free version - without the .3ds exporter)
then download version 7 and ask try the pro version (8 hours free with .3ds exporter).
build all of your models in version 6 and then save them as sketchup files. Open them in version 7 export them as .3ds. then close version 7 straight away, otherwise you will cut into your 8 free hours.
I have built 30-odd buildings and have only used about 40 minutes of my evaluation version 7.
You will need to be disciplined not to use version 7 for anything that you can do in version 6.
BTB Community Contributions:
Tuggeranong Town Cente Street Circuit & Basic City xpack
http://forum.racedepartment.com/bobs-track-builder/19533-basic-city-building-xpack.html