Thanks Joachim for your reply. I just want to clarify that I meant by graphical representation graphical 3D objects. For example, assume we have a frame representation for a castle, how can we tell the computer to draw the castle from that knowledge?
There are several ways, first, if you can program actions for you to program in java or constryas the object you want, while on the other hand, you could use Maya or AutoCAD to accomplish your project. It must be noted that the need to think about rendering, which is not necessarily associated with all the software for 3D design. I think it would be good Scracht You will review some MIT to strengthen or develop your skills in programming and computing.