Hi Andrew,
Firstly thanks for the support on resolving my key for 3D Coat.
OK Tree generator...Finally Ive found an easy to use ap that allows me to build relatively good low polycount trees that I can use as static meshes for games. Ive found the following issue which should be simple to resolve (I Hope).
System: Vista 32 bit (admin)
When you first install the app & export, it will create the .MTL with reference image files & object files. If you delete the content of that folder & the try & recreate the export the images & .MTL is NOT created. Subsequently if you create multiple variations from the same data whilst the .OBJH increments the .MTL remains static.
I did a reboot & had the same problems in case it was a memory issue, with no luck.
What I did find was that if you did a simple re-install over itself & then exported it created the required files.
I hope this helps
