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    Subtracting 2 images


    Hi all,

    I have graphics for a game made in layers in Photoshop.
    There is background and some elements that are on top of it.
    I need to separate it, background in one file, and elements in others.
    But when I make background invisible, the effects, like shadows, emboss, opacity are changed.
    I need to cut out the element with all effects from the background. Where there is opacity, there should be visible background in this area.
    The purpose of this is, when I take the background in my game, and programaticaly put the cut out element, the sum should look like the source image in PS.
    First thing that came to my mind was to make a small program, that will compare the background with final image, and store only the differences, that would do the job.
    But from laziness I thought maybe there is such a function or a method to do it in Photoshop.
    I would appreciate any ideas.

    Regards
    Pawel
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    did you try out transperity and opacity to make your back ground visible

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