Could I release the mesh after uploading it as VBO?

[kiffa]

There are some static BackGround Object3Ds in my game which are only used for rendering,  so I think their meshes could be released after uploading.

And my purpose is to free some main memory. I tried Object3D.decoupleMesh(), but got an incorrect result.

[EgonOlsen]

No, you can't. You can serialize some mesh data to the sdcard using the Virtualizer, but you can't get rid of the mesh instance itself.