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Thread: Selective Colouring

  1. #1
    Guild Applicant Facebook Connected
    Join Date
    Jan 2019
    Posts
    2

    Default Selective Colouring

    Hello,

    I'm doing my first ever project in GIMP, and it's a map for an original setting I'm making. I've reached a barrier, however. My map is as follows:
    YdwJeE4.png

    [For access to the multilayered GIMP file, see the following download link:
    https://drive.google.com/open?id=1xt...aPvddYXy3IdkdM ]

    I want to be able to paint portions of the map. So for example, I want to turn the top of the left continent white to reflect an arctic biome. However, I can't find a way to ONLY paint the green part. I could zoom in and carefully paint it white with a brush, but I feel like there's a tool to select portions of an image and recolour them. Do you have any guidance?

  2. #2
    Guild Grand Master Azélor's Avatar
    Join Date
    Jul 2008
    Location
    Québec
    Posts
    3,363

    Default

    Welcome to the Guild.

    Normally, I would use multiple layers such as the land and water would have their own separate layer.
    I assume you must have several layers because the different effects you used you usually be done not just on a single layer.
    If that is not the case and you used only one layer, then it's trickier.

    What your looking for is probably the magic wand tool.

  3. #3
    Guild Applicant Facebook Connected
    Join Date
    Jan 2019
    Posts
    2

    Default

    I figured it out.

    My method:
    1. Select the layer with only the continental landmasses on it.
    2. Select by color > Click anywhere on one of the green landmasses.
    3. Selection > Quickmask
    4. Selection by Color > Click the green landmasses.
    5. Paintbucket > Black > Green landmasses [this doesn't paint them black, it just deselects them]
    6. Paintbrush > Color: White > Fill in the area I wanted to select.
    7. Exit quickmask
    8. Paintbucket the biome color into the selected area.

    The end result:
    LQu9dCo.png

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