Re: Underlays?

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Paul Sherman (paul++at++bham-ht.bioc.uab.edu)
Thu, 12 Sep 1996 09:23:03 -0500 (CDT)

> Is it possible to set up window _underlays_ with Performer? With the help
> of some folks on this Performer list, I set up an OpenGL overlay last
> month. But now, I'd like to put a few static elements behind some 2-D
> instrumentation displays. Is there a way to do this? Some of the
> Performer man pages make passing reference to underlays, but I haven't
> found a real recipe on how to construct one.
>
> Thanks,
>
> Sandeep

Sandeep,

No sure how you did your overlays. When we did it, we did a OpenGL calls in
the postdraw...
So, to do underlays, I just did OpenGL calls in the predraw. Worked just
fine. I can hunt down the code for you if you need it.

                Paul Sherman
                paul++at++ht.com
                paul++at++bham-ht.bioc.uab.edu

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