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K. Bowie
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White Pixels showing up in Animation

May 1, 2013 2:24 PM

My animated gif is showing white 'patches' (where there shouldn't be any). It varies where these patches show up, sometimes the 3rd state, sometimes the 5th of 5. We're only having problems on 2 of the 4 email addresses we're testing on, and all 4 are on the same system/platform. Any thoughts? Many thanks - K. 

 

WhitePixels.jpg

 
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  • Currently Being Moderated
    May 1, 2013 7:31 PM   in reply to K. Bowie

    Do any of your frames include transparency? (The frame shown, with the grey background, appears as though it might.) GIFs support index transparency but not alpha transparency, so any semi-transparent areas make use of a matte color. I'm wondering if the white patches might be a matte color substituting for partially transparent pixels.

     

    Also, I'm not sure how transparency is handled in an animated GIF.

     
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