transparency issue with animate on Mac

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fmw42
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transparency issue with animate on Mac

Post by fmw42 »

Mac OSX Tiger IM 6.6.0-8 Q16

Image

Image

When doing:

convert -label "%f" zelda3.jpg mandril.jpg miff:- |\
montage - -geometry +0+0 -tile 1x1 -background none miff:- |\
animate -dispose background -delay 100 -loop 0 -


The two images alternate, but the label remains fixed on mandril.jpg and the background of the label is transparent and one can see right through it to whatever window is behind it.

Can someone verify this on another Mac? Is this behavior intentional?

Thanks

Fred

P.S.

If I edit the above and use a white background rather than none, then it all works fine. The label alternates with the image.
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anthony
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Re: transparency issue with animate on Mac

Post by anthony »

It may be a 'disposal' problem. probably the -dispose setting on animate is not getting applied. Perhaps it could be set in the montage?

Trying it on the latest IM under linux seems to show it working properly, as a flicker_cmp which seems to be where this comes from.

Has it now been fixed for macs?
Anthony Thyssen -- Webmaster for ImageMagick Example Pages
https://imagemagick.org/Usage/
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fmw42
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Re: transparency issue with animate on Mac

Post by fmw42 »

Has it now been fixed for macs?
Still same problem using IM 6.6.1-1 Q16 Mac OSX Tiger

I think it is related to viewtopic.php?f=3&t=15851
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