OBJ_IO is a C++ library which reads or writes some of the 3D graphics information stored in an Alias OBJ file.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
OBJ_IO is available in a C++ version and a FORTRAN90 version and a MATLAB version.
IVCON, a C++ program which can convert graphics information between STLA and other formats.
IVREAD, a FORTRAN90 program which can convert graphics information between STLA and other formats.
OBJ, a data directory which has some examples of OBJ files.
OBJ_TO_PLY, a C program which reads an OBJ file and writes similar information to a PLY file.
OBJ_TO_TRI_MESH, a MATLAB program which reads an OBJ file and extracts the surface mesh data as a TRI_MESH dataset.
OBJ2OPENGL, a PERL script which converts an OBJ file to a C/C++ include file appropriate for use with OPEN_GL.
PLY_TO_OBJ, a C program which reads a PLY 3D graphics file and writes an equivalent OBJ graphics file.
You can go up one level to the C++ source codes.