Re: mapw with performer

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John Rohlf (jrohlf++at++tubes)
Mon, 3 Jul 95 10:55:09 PDT

>
>
> Does anyone besides myself use the mapw command to go between
> screen, and world coordinates? If so, maybe you can help me out.
>
> In our application (Performer 1.2) we set up a vobj structure
> that matches our performer in field of view, aspect, and clipping
> planes. We set the viewpoint with pfChanView, and want to use
> the gl command mapw to get information about our scene so we can
> load appropriate elevation date. Specifically, we want the world
> coordinates of our four screen corners.

         
        pfGetFrustNear(chan, ll, lr, ul, ur)

will return these corners.

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