Optimizing OpenGL canvas with partial updates

[Boudewijn Rempt]

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