The addition of 3D object support for PowerPoint last year was a huge leap forward by Microsoft. Naturally, first generation features always come with limitations, confusions and questions by users. That was definitely the case with 3D, but Microsoft has continued to improve the feature (animations!) and is committed to its future.
Since 3D is such a dense and multi-faceted thing, Microsoft just released content guidelines for users and creators of 3D objects. A lot of what’s in this new documentation can get pretty technical (“Joint Count Mapped to Vertices Maximum on an i5 vs i7…”), but it’s going be vital to a certain crowd trying to figure out why the 3D model of their new engine isn’t rendering correctly when the CEO is introducing it on stage.
You can read it all here and download a PDF or, of course, a PowerPoint version of the document.