Re: Dividing up the screen

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ROY RUDDLE (Ruddle++at++cardiff.ac.uk)
Thu, 12 Sep 1996 16:48:52 +0100 (BST)

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> to the top half of the screen. This worked fine. When I added the second
> pfChannel for the bottom half, I got a huge reduction in performance --
> almost 40% slower frame rates, which is unacceptable. This is without even
> actually drawing anything to the lower half of the screen!
>
Perhaps you attached the out-of-window scene to the second channel, in
which case Performer will be going through a load of the cull/draw
unnecessarily.

A solution may be to draw into the second viewport with 2D OGL/GL or use
a different pfScene for the instruments.

hope this helps

roy
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