Our CG Course teacher Sir Fawad gave us an assignment for creating an OBJ File Reader in OpenGL. The OBJ format is an ASCII file format that represents 3D geometry. I was able to code a beautifully working OBJ Loader in a rather short time, showing a 25k+ faced tree model. It took some time to study how the OBJ Format is generally laid out and once I was done with that, that was just a matter of having to knock my brain and ask for some attention to C/C++ coding.

So, you can grab the OBJ Loader here (source file included):

http://www.thesocialgeek.com/ObjLoader.zip

Once I did that and emailed to Sir Fawad, he immediately replied back and appreciated what I did. But he asked if I can alter the code and implement the silhouette edges in this OBJ Loader. I made some use of my brain again to come up with the silhouette edges implementation of the same OBJ Loader:

http://www.thesocialgeek.com/ObjLoaderSilhouetteEdges.zip

* Please note that this second link only contains EXE and CPP file. The required OpenGL and OBJ files are in the first download link above.

I’m posting it here for some people might like to learn from it or heck use it for their own assignments straight away.

Cheers,
Kami

P.S. I’ve used GLUT as the windowing toolkit and C/C++ as the language. Sane troopers may use their skills to tailor it to other environments.