Tracks developpement

[berzingue]

Ok sorry, I try to be more clear.

Step by step :

- I modelise a track with 3dsmax (road, grass, kerbs, walls. No buildings.)
- I save it as .obj
- I import it in Blender
- I assign collisions
- I save it as .jpk
I test it in Vdrift. -> track is ok, bankings elevations correct : it's fun to drive.

Now I want to detail the track with differents objects. Trees, buildings, etc. without to have to modify collisions assigned on the track.

The idea is : I open track.jpk in Blender and I import .obj buildings on the scene. So :

- I modelise any buildings in 3dsmax (garage, tribunes or whatever)
- I save any buildings as .obj (garage.obj, tribune.obj, bridge.obj...)
- I open Blender
- I open track.jpk in blender
- I import any buildings.obj and place it on the track
- I export all the scene (track + buildings) as .jpk
...but buldings don't appear. Only the track.