I have been trying to figure this out. I built this vector in AI, made it pixel perfect, made sure all my lines were clean, sent it to PS, did a 3D render, again made sure all of my surfaces were clean, saved as an OBJ and imported to Dimensions an what I get is very different from what I built in Photoshop. Please help.
Can you send me the .obj file? You can mail it to email@example.com. Looks like maybe parts of the model are inside-out (the darker bits), but it's really hard to tell without seeing the model itself.
it just looks like lighting to me... the system has failed to load Dimension correctly but thats a known issue with this build and Windows so I would re-export the object from Photoshop and try again
i.e, open it in Photoshop
disable the infinite light and export as wavefront | obj with bmp textures
then when you import it to Dimension, slap a new material (not glass) and see how that rendors