Zoom problems.

Hello,

Anyone could I say me how I can make a all objects’s view? I am doing an application CAD and I would like to have an zoom options ( complete view, zoom in, zoom out, etc).

I need to know what’s the camera distance to can look all the objects on perspective view.

http://www.opengl.org/resources/faq/technical/viewing.htm#view0070

Ok,

But I need to use gluPerspective no glOrtho