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Thread: RGB range with surface object?

  1. #1
    Clicker Fusion 2.5 Mac

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    Dec 2008
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    RGB range with surface object?

    Hi, is it possible to work with a color range using Surface Object or any other extenion?

    I would like to "crop out" chroma key, as an example.

    Thanks a lot in advance.

  2. #2
    Clicker Multimedia Fusion 2SWF Export Module

    Join Date
    Sep 2006
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    The surface object has functions that let you iterate through each pixel in your image and change it, using the action "callback: loop though area" or "loop through image" to initiate a loop, then the condition "on callback" and action "return color" (or return alpha) to set that pixel. If you simply wanted to set a color or range of colors to be transparent, you can do something like;

    =loop through image with callback {name} flags set to 3 (get color + set color)

    +on callback {name}
    +compare two general values getGreen(CallbackSrcCol("surface")) >= 240
    =return color TranspColor("surface")

    that would change every pixel in the image with a Green component of 240+ into a transparent pixel.

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