Thanks JB !!!

I wonder technically if I would edit the heightmap in the patch file, then load it in the editor and save it again would it recalculate the .bullet files ? This is something I can experiment with. I got a weeks vacation coming up and I can go deeper into this.

Thanks for explaining the format sofar. The layers I could use if I would also want to include auto texturing from a heat map bitmap or something but that will probably take me weeks to develop. I remember last time I did this for the L3DT importer I almost went beserk from frustration smile