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-   -   Position of Origin in OPENGL?? (http://www.go4expert.com/forums/position-origin-opengl-t2667/)

Tango Issac Debian 23Jan2007 17:27

Position of Origin in OPENGL??
 
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 23Jan2007 18:51

Re: Position of Origin in OPENGL??
 
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 23Jan2007 20:34

Re: Position of Origin in OPENGL??
 
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.


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