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I've run into this issue more than once and haven't figured it out yet - I made a few projects in Adobe After Effects then exported GIFs through Adobe Media Encoder, and they turned out looking like this:

enter image description here

or this: enter image description here

What are those dots and how can I remove them? Let me know if I need to provide more information.

Thanks!!!

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.png-8 bit and .gif both support 256 colours total. You're choosing colours outside their gamut, and so you're getting dithering as the exporter tries to match your colour - you can set different kinds of dither, and may find that "diffusion" is more random and therefor a bit less noticeable - or you could stick to colours within the 8-bit colour 256 tones gamut and skip this issue entirely.

If you limit your choices to one of these, your .gif will not need to dither:

enter image description here

Note:
.gifs can technically include considerably more colours than the basic 256 you get from 8-bit (8x8x8) by both customising the gif colour palette and setting separate colour blocks in the .gif (you can set up a .gif to allow each colour block to support its own unique custom palette) but that's typically way beyond the scope of a simple exporter interface.

Hope this helps.

  • Hi GerardFalla! Thank you for your explanation! I think I have a rough idea about what's happening, although I will have to research more about 'dithering' to catch up! – Maggie Gong Mar 27 at 2:46

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