OBJ2OPENGL Convert OBJ file to OpenGL format

OBJ2OPENGL is a PERL script that reads an OBJ file describing a 3D object, and writes a C include file describing the object in a form suitable for use with Open GL.

To see how to use the include file created by this program, refer to the example in the Open GL examples directory.

The author wishes to point out that this script was developed for a specific purpose, and was not intended to be able to handle all variations of the OBJ file format.

Related Data and Programs:

IVCON is an executable C++ program which can convert graphics information between OBJ and other formats.

IVREAD is an executable FORTRAN90 program which can convert graphics information between OBJ and other formats.

OBJ is a data directory which has some examples of OBJ files.

OBJ_2_PLY is an executable C program which reads an OBJ file and writes similar information to a PLY file.

OBJ_IO is a library of FORTRAN90 routines which transfer graphics information to and from OBJ files.

PLY_TO_OBJ is a C program which reads a PLY 3D graphics file and writes an equivalent OBJ graphics file.

TEC_TO_OBJ is an executable FORTRAN90 program which can read a TECPLOT file describing a surface in 3D composed of triangles or quadrilaterals, and write an OBJ file.

Usage:

obj2opengl  file.obj

reads  file.obj and writes an INCLUDE file.

Author:

Margaret Geroch, 
Associate Professor,
Wheeling Jesuit University,
Wheeling, West Virginia.

Reference:

• The OBJ data directory contains some example OBJ files.
• OBJ is a file format from ALIAS ( http://www.alias.com/eng/index.shtml)
• Open GL examples.

Source Code:

Files you may copy include (for some loopy security reason, we must avoid the "PL" extension on the source code as distributed here:

• obj2opengl.perl, the source code (your copy will have a "PERL" extension, which you will probably want to change back to "pl");
• graphicsDefs.h, an include file that will be needed when the C file is compiled;

Examples and Tests:

CUBE is a simple cube. Files you may copy include:

• cube.obj, an OBJ file of the shape;
• cube.h, the corresponding INCLUDE file created by obj2opengl.pl;

GOURD is a complicated shape that represents a gourd. Files you may copy include:

• gourd.obj, an OBJ file of the shape;
• gourd.h, the corresponding INCLUDE file created by obj2opengl.pl;

You can go up one level to the PERL source codes.

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Last revised on 30 October 2007.