Re: HUD and multi channels

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Mario Veraart (rioj7++at++fel.tno.nl)
Tue, 15 Dec 1998 18:40:03 +0100 (MET)

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>
> Hi pfAll
>
> I have 3 channels for which I want for draw 3 differents HUD. I don't
> know how to select only one channel. For instance, the same HUD is drawn
> on all of the channels.
When creating the channels keep a record of the pfChannel pointers (in
shared memory).
In the draw callback compare the first parameter to the stored values.

> I also wonder if it is possible to draw a HUD that overlay all the set
> of channels ?
Yes, but you have to bookkeeping yourself. A possibility is to set up
the ortho frustum you use to different values for the channels
left (0,0) - (0.33,1)
mid (0.33,0) - (0.66,1)
right (0.66,0) - (1,1)
And then draw the HUD as you would for one channel

Mario

>
> Thank you for any answer
>
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