DURAARK has released the Current State of 3D Object Digital Preservation and Gap-Analysis Report.
Here's an excerpt:
The gap analysis is approached through an in-depth analysis of two areas. One area is that of fundamental digital preservation tools and processes regardless of their content type. It describes processes and standards adapted by the global digital preservation community and implemented in archives of varying domains, e.g., archives dealing predominantly with e-publications as well as AV-archives. The second area is that of current existing processes for the digital preservation of 3D objects. It describes aspects and challenges which are uniquely tied to the long-term archiving process of this content-type and lists existing tools and standards. The gaps are identified through a comparison of the content type agnostic and the 3D-specific state of the art descriptions.