I am looking for an easy way to zoom on a part of a scene. For the moment I use gluPickMatrix() to give the part of the window I want my zoom on and then I call gluPerspective(). The problem is I don't get my zoom on the rectangle I was hoping, it goes somewhere else...
So I would like to know if it is a (good) way to do it or not and if not, can everyone give me another method....I can't find examples on the web.
Thank you for your help