Importing 3D into Photoshop

So, I have the latest and greatest edition of photoshop thatallows import of 3D models for "painting/texturing"....but itappears to me that .U3D is the only file format that is compatibleand when I've tried to open one in Photoshop I get an incompletemodel or nothing at all. Any experts here on the subject?SolidworksGeneral