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Thread: TH2G/ 3 screen Keystoning problem

  1. #1

    TH2G/ 3 screen Keystoning problem

    Hi all,

    Thanks in advance for your help.

    I'm building a new system and having a problem. My system consists of:
    Mac Pro with dual DVI output
    TH2G on Screen 2 so I see the 3 projectors together as one large one. All locations are correct where one image moves across all three like they should.

    The outside screen on either side are smaller with one large one in the middle.

    I'm having keystoning problems with my two smaller outside screens. After I go into my submixes and adjust the keystone to the appropriate shapes to fit the outer screens, the other parts of the video are not being masked out and are bleeding over into my center screen. I've been staring at this for a few hours and can't seem to figure out what I'm forgetting..

    What am I missing fellows?

    Thanks again!

  2. #2
    Join Date
    Oct 2004
    Location
    UK - Milton Keynes
    Posts
    807
    Can you send me a screenshot of screen 2?

    what version of catalyst software are you using?

    might be as simple as setting the background to black, not transparent.

    as you are using mix windows - check that output 2 is not set to mix all layers with fx - rather it should be set to 'no output'

    send me screen shot showig the mix preferences and I may be able to help...

    Simon
    Simon Pugsley

    SNP Productions Ltd. (UK)
    Lighting & Video Control Solutions
    Catalyst|Sales|Hire|Training|Support
    Catalyst Dealer UK Europe & Worldwide...

    Office: +44 (0)1908 410129
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    simon@snp-productions.co.uk
    www.snp-productions.co.uk

  3. #3
    Since you outer screens are smaller, have you taken into account that you will need to size the mixes for them to a size larger than your output. Remember that 3 mixes on a TH2G think their the same size. You have to scale the smaller projectors to a larger size in order to proportionately match them to the larger center. For example, if the ctr pj is twice the size as the sides, then you will zoom the sides to double size effectively cropping the top and bottom quarters of the image on these. If you start with a hatch grid on the projectors, you'll see what I mean. Just scale until the hatch grid matches.
    SourceChild
    TODD SCRUTCHFIELD

    ...if it ain't broke...
    gimme 5 and then don't act surprised

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