i have a question.
how can i generate an irregular 3D object using opengl? say like.. an potted plant?
if you understand how to display multiple triangles on the screen, take a look at the (Wavefront)".obj" file format. easy to import modles into opengl from it.
one thing to remeber is when making a ".obj" file from blender or 3dsmax make sure to triangulate it. it will make coding it into your program heeps easyer.