I've had this problem, especially for close-ups. Of course the quickest solution would be to augment the number of polys of the object ... But I found something strange happening with imported objects : depending of the file export/import format, aspect could change tremendously. On the attached screenshots, I exported the same low-res mesh from my 3D app (Rhino..) once in .DXF and once in .3DS. I imported them in Vue4Pro (but it gives the same result with Vue3..). Smothing factor is default 60 in both scenes and number of vertices and polys exactly the same ! (Although the .DXF file size is 33Ko, the .3DS file is 6.77Ko.) I don't know if that can help you.. Paul