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Author Topic: Index Pictures  (Read 1241 times)
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SmashHackers
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    « on: February 05, 2011, 06:01:53 PM »
    How might I go about indexing images using gimp to shrink their file size?
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    mnsg
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    « Reply #1 on: February 05, 2011, 08:06:10 PM »
    With The GIMP...

    Image > Mode > Indexed...

    Also, BrawlBox can index your images as well; if the texture format being used is CI4 or CI8.
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    Maxi
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    « Reply #2 on: February 05, 2011, 08:11:10 PM »
    Indexing pictures make it really messed up and illegible in BrawlBox for some pictures that are not supposed to be in C14 and C18 format. The best way to reduce file size is to posterize it. This reduces the color of the picture, which in turn will reduce the size.
    « Last Edit: February 05, 2011, 08:13:06 PM by 2DaMax92 » Logged
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    « Reply #3 on: February 05, 2011, 08:20:23 PM »
    Also, each texture format uses different compression methods for images.

    CMPR uses y compression, and only handles "1" transparent color.  Memory usage is 4 bits per pixel.

    RGB565 does reduce the number of colors used, but doesn't support transparency.  Memory usage is 16 bits per pixel.

    RGB5A3 reduces the image's number of colors, like RGB565, but color can be much more noticeable.  Supports multiple transparent colors.  Memory usage is 16 bits per pixel.

    RGBA8 doesn't compress the image in any way, and it supports multiple transparent colors.  Memory usage is 32 bits per pixel.
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