OBJ files are used by wavefront's advanced visualizer application to define and store the geometric objects. Backward and forward transmission of geometric data is made possible through OBJ files. Both polygonal geometry like points, lines, texture vertices, faces and free-form geometry (curves and surfaces) are supported by OBJ format. This format does not support animation or information related to light and position of scenes.
A file with 3DS extension represents 3D Sudio (DOS) mesh file format used by Autodesk 3D Studio. Autodesk 3D Studio has been in 3D file format market since 1990s and has now evolved to 3D Studio MAX for working with 3D modeling, animation and rendering. A 3DS file contains data for 3D representation of scenes and images and is one of the popular file formats for 3D data import and export.