Position of Origin in OPENGL??

Tango Issac Debian's Avatar, Join Date: May 2006
Go4Expert Member
hai guys,

Please say me that what is the POSITION of the (0,0,0) and (0 ,0) in the MONITOR
screen that is in OPENGL.......

please help me....
regards Tango
shabbir's Avatar, Join Date: Jul 2004
Go4Expert Founder
Normally its at the top left position on your screen but it can always be normalised to make the screen as in the case of first quadrant.

The third zero is the Z-Order.
DaWei's Avatar, Join Date: Dec 2006
Team Leader
OpenGL's "origin" is at the bottom-left, as a mathematician would expect. There are simple ways to put it at the upper left, as most windowing systems expect. See here and many other Googled references.