This program tests the rendering of multiple models via classes. Specifically, I have created a class Model which makes rendering of a model much easier:
model->render();
Please examine the Tri class for a quick example of how to create a new model extending Model, the main requirement is that a void buildModel() function be specified.
For the purposes of the class which I created this for, we typically did rendering via:
glDrawArrays(GL_TRIANGLES, 0, vertexCount);
If you would like to create a custom rendering funtion, simply override bool customRender() and return true. This will tell Model not to render via the above code.