Porting IrisGl to openGL .... overlays

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Bert VandenBerg (bert++at++hymarc.com)
Fri, 11 Dec 1998 14:18:04 -0500

SLIGHTLY OFF-TOPIC QUESTION ON PORTING irisGL TO openGL . . .

1) is there a public forum for discussing openGL programming?

2) would some one have experience to share on implementing overlay
planes in openGL (i.e. for menus, and zoom box display). SGI's "openGL
Porting Guide" offers the single line in chapter 5:

        "The GLwDrawingArea widget also provides support for overlays"

but I don't see any other mention of overlays in the documentation or
in the manpages.

thanks,
         

-- 
Bert van den Berg                   E-mail: bert++at++hymarc.com
Hymarc Ltd.                           http://www.hymarc.com
35 Antares Drive                        Tel: (613) 727-1584
Ottawa, Ontario  K2E 8B1                Fax: (613) 727-0441

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