> Somehow this couples the image format decoding and the morph implementation...

We could benefit from something like a "FormArray" ... which would be not part of Morphic?

Best,
Marcel
Am 14.06.2020 09:37:50 schrieb Jakob Reschke <forums.jakob at resfarm.de>:
Now the change you made is in AnimatedImageMorph, so way past the gif. How do we pass this image composition on? Create altered forms with the background or previous pixels filled in, or support the same composition in the morph? Somehow this couples the image format decoding and the morph implementation...


karl ramberg <karlramberg at gmail.com [mailto:karlramberg at gmail.com]> schrieb am So., 14. Juni 2020, 00:34:

Cool reference.

I don't really understand the reader code so I guess I'll pass on that.

Best,
Karl


On Sat, Jun 13, 2020 at 11:47 PM Christoph Thiede <christoph.thiede at student.hpi.uni-potsdam.de [mailto:christoph.thiede at student.hpi.uni-potsdam.de]> wrote:

This is interesting! Looks like you can control this mode of compression via so-called "graphics extension blocks". Maybe we should respect this directly in the GIF reader?


https://graphicdesign.stackexchange.com/a/114301 [https://graphicdesign.stackexchange.com/a/114301]

Von: Squeak-dev <squeak-dev-bounces at lists.squeakfoundation.org [mailto:squeak-dev-bounces at lists.squeakfoundation.org]> im Auftrag von Nicolas Cellier <nicolas.cellier.aka.nice at gmail.com [mailto:nicolas.cellier.aka.nice at gmail.com]>
Gesendet: Samstag, 13. Juni 2020, 23:39
An: The general-purpose Squeak developers list
Betreff: Re: [squeak-dev] The Trunk: MorphicExtras-kfr.275.mcz


Ah you mean first image is opaque, then following ones use transparency for non moving parts?

Le sam. 13 juin 2020 à 23:31, karl ramberg <karlramberg at gmail.com [mailto:karlramberg at gmail.com]> a écrit :

Look at this gif:
http://bestanimations.com/Nature/spring/tulips-spring-nature-gif-6.gif [http://bestanimations.com/Nature/spring/tulips-spring-nature-gif-6.gif]
Try toggling transparency on and off in the menu

Best,
Karl




On Sat, Jun 13, 2020 at 11:06 PM Jakob Reschke <forums.jakob at resfarm.de [mailto:forums.jakob at resfarm.de]> wrote:

I don't understand. I thought most gifs used transparency for transparency and compression is independent from that. 


karl ramberg <karlramberg at gmail.com [mailto:karlramberg at gmail.com]> schrieb am Sa., 13. Juni 2020, 18:28:

Most GIFs use transparenty for  compression. So the general use case is that you want it opaque. You can turn off transparency in the menu

Best,
Karl

On Sat, 13 Jun 2020 at 15:26, Stéphane Rollandin <lecteur at zogotounga.net [mailto:lecteur at zogotounga.net]> wrote:

> what's your motivation for this commit? I think transparent gifs should
> be displayed transparently in Squeak. You can always add an opaque
> background in your application if it does not want this :-)

Indeed.

+1







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