From kde-kimageshop  Wed Jun 20 19:08:42 2007
From: Boudewijn Rempt <boud () valdyas ! org>
Date: Wed, 20 Jun 2007 19:08:42 +0000
To: kde-kimageshop
Subject: Re: Filters "dialog" in 2.0
Message-Id: <200706202108.42769.boud () valdyas ! org>
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On Wednesday 20 June 2007, Cyrille Berger wrote:
> On Wednesday 20 June 2007, Schleimer, Ben wrote:
> > Hi,
> >   I think the modeless is a decent idea, you need to consider the
> > performance of always running the filter on the full image. It might be
> > worth considering allowing the user to select a portion of the image to
> > preview the filter just so it's quick to change filter parameters and s=
ee
> > the update.
>
> and I was also thinking that the view of the image should get updated as
> the filter is proceed on the image. That way the user could see how the
> image is affected before the whole processing is finished. That could be
> usefull for effect masks and adjustement layers.

In theory that should work already: the projection code recomposites in chu=
nks=20
and sends every chunk to the canvas. However, in practice, Qt queues the=20
updates and updates in one go. In fact, I've only seen Krita update the=20
individual chunks once, when running under Valgrind :-).

=2D-=20
Boudewijn Rempt=20
http://www.valdyas.org/fading/index.cgi

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