plasma::wallpaper and pure opengl?

Martin Gräßlin mgraesslin at kde.org
Wed Jan 18 05:32:17 UTC 2012


On Tuesday 17 January 2012 18:49:12 Shaun Reich wrote:
> i'm not knowledgeable in the OGL department, or the plasma::wallpaper
> area...but I thought it'd be kind of nice to tinker around with making
> absurdly useless but awesome wallpapers, and maybe learn a bit of OGL
> in the process.
there was recently a thread about OGL wallpapers where I stated my opinion on 
it.
> 
> problem is, isn't there an issue with using opengl on
> plasma::wallpapers? because you end up having to render it to an
> image, then use QPainter to display it, right?
yes
> 
> is there a good way around that?
no :-)

A possible solution might be to take advantage of KWin. Consider Plasma not 
rendering a wallpaper at all and KWin knowing about it. In that case we could 
have a special effect rendering the wallpaper. We already have functionality 
to render the background black if it becomes visible. This would just needed 
to be extended. But it would make mouse interaction and stuff like that 
impossible.

Cheers
Martin
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