Re: [Gimp-developer] caching considerations in gegl

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Hi,

"David Necas (Yeti)" <yeti@xxxxxxxxxxxxxxx> writes:

> This is essentially my example from the Noisify plug-in
> discussion mentioned earlier (one can figure out other ways
> how to achieve the desired effect, but I do not consider
> them natural).
> 
> I want a yellow opaque circle, with edges blurred to
> transparent and some fine yellow pixelish haze around.
> The transition I also don't like continuous, but spotty with
> varying opacity, so one can see the background better or
> worse through individual pixels.  (Hm, my English is poor,
> but I hope you understand what I mean.)
> 
> The obvious solution is following: Fill whole area with
> yellow. Select a circle there. Blur the selection. Invert
> slection. Clear selection. Use Noisfy only on Alpha channel.
> (Now you can further shape the haze.)

I don't agree. The obvious solution whenever manipulation of the alpha
channel is desired is to use a layer mask.


Salut, Sven

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