1)   CtrlView 3.20
CtrlView is a fast, compact, powerful viewer/converter for different 2D/3D raster/vector file formats with the format recognition system. It means that CtrlView analyses content of the file and defines its format.

 2)   Serif 3DPlus 2
For 3D scenes, logos, animations, models. Award winning. Unusually good display: built-in DirectX; palette/depth/dither accurate Export Preview; five anti-aliasing levels. Includes fonts, objects, etc. FREE. Registration required.