[QLab] 1. Re: project video on a balloon (Christopher Ashworth)
Office Broomer
It depends on projection On or IN the balloon . Inside you need a special lens (eluminati) but on you can use Paul's patch for QC (I think it is for sale) to warp it on the outside.
Barney Broomer
Christopher Ashworth
designed to project on a dome, so that's technically the "inside of
the balloon". But, as far as I can tell from thinking it through for
about 5 seconds, inside or outside the sphere is essentially the same
warping problem, just symmetric about a plane that bisects the
sphere.... right?
Or maybe you're referring to some other reason that the lens would be
needed inside, but not outside?
Cheers,
Chris
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I've never yet tangled with more than one graphics card in the same machine, but I've done what you're doing in another way, and this might be a workaround for your situation...
You could try using a Matrox Dual Head2Go card, they cost around £130 (UK) but you might be able to hire or borrow.
This plugs into the second output of your main graphics card, and you then tell the Mac that display 2 is twice as wide as normal (e.g. 2048x768) and the dual head box splits the signal to two ouputs (e.g. of 1024x768 each)
You're not then using the second graphics card at all, (it might be worth removing it if the system's still trying to "talk" to both cards.
As far as I know you will have to set all your clips to custom geometry and size and position them in the right "half" of the extra wide display, this won't be visible to QLab as two displays, but as one very wide display, just as the Mac sees it.
A pdf schematic which might help is here: http://dl.dropbox.com/u/338894/Display%20configuration%20Dual%20head.pdf
Hope that makes sense. I'm more used to using Dual Heads with Catalyst than QLab so maybe others on the list could chime in if I missed anything or got it wrong!
Good luck.
Tim