use best for tree

[hina chitalia]

Hi,
when we place tree in scene the file become heavy.
so, which is best way to put tree----proxy or merge 3d model or use plugin
or any other thing.
can anybody suggest
Thanx

[Peter Gruhn]

I don't know if it is best, but I have been having good results with mr proxies.

[hina chitalia]

Thanx,
I also used proxy.But when we use proxy its leaves are spread out.
& It don't have material.how u solve this.
& you use MR Proxies means mental ray proxies?