I use to the align(Camera) of object3D ,How can't saw object3D!
Align just aligns the cameras rotation with the object one. It ensures in no way, that the object is visible. Maybe lookAt in Camera is more what you want!?
When I load 3DS file , how can i get name of material ~?
You can't. Why would you want to?
My first assumption is so that he can load the texture manually? Though I'm not sure otherwise.
If that's the case, there is a method readTextureNames3DS in Loader. I really don't understand what is so confusing about this texture name thing? Any ideas on how to improve this?