Physics and mesh , textures and mesh

[Naiman Broome]

Hello I have a couple of questions today :) ...

 

1 I just discovered that when I exported my mesh it exported actually as 6 different mesh prims , so because in max they were separate objects, so I attached each object sharing the same texture , and since I have 4 I reduced to four objects ...

 

now I wonder if I can export all as a single mesh and preserve the 4 different textures or if I woudl have issues of some kind ... I noticed that the more I attach the stuff together and reduce the materials the prim count increases ?

 

2

 

I wanted to  make the collision of my tree work only for the trunk but when I upload it it doesn't shows up n the preview and even analyzing says different polycount , it actually shows my highest res model .

perhaps is due to the fact that my model is made of several 6 objects?