zoom by rubberband box

[jpmorgan]

I've got a scene rendered and using gluPerspective and gluLookAt for projection and navigation. I am using a "rubberband box" to isolate a square portion of the screen and would like to zoom in on the boxed area. The box returns it's position and size in pixels.

Is there a way to convert pixel coordinates to eye and point coordinates?

Thanks for any help!

[chennes]

I'm using an orthographic view and doing the same thing, dunno if this will help or not...

I don't do any conversions into coordinates as such. I get the size of the box as a percentage of the toatl screen, calculate the center of the box as a percentage of the total screen, then use glScale and glTranslate to get that position zoomed into the window.

HTH,
Chris