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List:       kde-kimageshop
Subject:    Re: Optimizing OpenGL canvas with partial updates
From:       Boudewijn Rempt <boud () valdyas ! org>
Date:       2016-02-14 15:29:55
Message-ID: alpine.LNX.2.00.1602141629470.5100 () calcifer ! valdyas ! org
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On Sun, 14 Feb 2016, Dmitry Kazakov wrote:

> 
> About the artifacts, isn't that because we don't correctly
> calculate the texture update bounds? Because i wouldn't see other cases where that \
> could be an issue. 
> 
> The artefacts I'm talking about are with the GPU canvas. They happen because we're \
> downscaling rects and then pasting them into the canvas image. That's something we \
> need to take care about, because it's pretty much impossible to avoid when doing \
> scaled-down canvas updates. 
> 
> I guess you meant "CPU-canvas"   :)

Yes.

> 
> 
> --
> Dmitry Kazakov
> 
> 

-- 
Boudewijn Rempt | http://www.krita.org, http://www.valdyas.org


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