ClockStone® FBX Viewer is a free* software tool to view numerous different 3D file types as used by Autodesk® 3ds Max, Maya, AutoCAD and others: FBX, 3DS, DXF, DAE (Collada), OBJ. The viewer is based on ClockStone's DirectX 11 engine and supports a large number of advanced real-time features, such as rendering coloured soft shadows for any type of light source, applying post-process filters, etc. If you want to download it or see all features, please follow the link at the end of article.
Supported 3D file types: FBX, 3DS, DXF, DAE, OBJ
Supported image file formats: BMP, DDS, EXR, GIF, HDR, IFF, JNG, JPG, JPEG-2000, PCX, PFM, PNG, Photoshop PSD, RAW, TGA, TIFF, WBMP, and others…
Source: FBX Viewer