USD is a very complex standard. Is there a layered 3D/animation interchange format that allows for relatively painless scene interchange? By layered I mean som

USD is a very complex standard. Is there a layered 3D/animation interchange format that allows for relatively painless scene interchange? By layered I mean something where each feature builds on the previous features. Something like: 1) OBJ-like static geometry 2) materials and lighting 3) per-frame transform matrices 4) animation curves 5) etc.