TNGViewer is a small OpenGL 3D object viewer. It supports FBX, 3DS, OBJ, DXF, DAE, LWO and LWS formats (more explanations by TNGViewer devteam HERE). TNGViewer is free and is available for Windows and MacOS.
TNGViewer requires QuickTime player (not cool, I’ve just reinstalled my PC and thus I didn’t have QT player and I didn’t want to install it! -). To visualize 3D objects only, TNGViewer should be able to run without QT player…
The rendering is basic (very flat lighting…) but TNGViewer seems to works correctly.