SOLVED THX EGO
In my project, there is 5 or 6 textures with one object3D.
here is my solution:
one:combined several jpgs into a big one,i think the new big one's resolution would be very large,may be fall down the jpct's fps?
the other one:split the big model(for example,A.md2)into several smaller model(a1.md2,a2,md2,a3.md2.....);
so every new small Object3D just set the only one texture
question:
which way is the best fps?
And more,is there a better way to set several texture into a one model?
Thx,ego.