OpenGL and Plasma::Wallpaper

[Martin Gräßlin]

On Thursday 29 December 2011 11:21:36 Justin L. Boss wrote:
> Is there a way to use opengl in a Plasma::Wallpaper. Maybe by passing a
> opengl surface to QPainter then having Plasma::Wallpaper display it or does
> the Plasma::Wallpaper except opengl calls?
You could do the same as the GLApplet [1] does: paint to a PBO or FBO, convert 
it to QImage and render the image. But this looks like a memory intensive 
operation and probably not a good idea.

My recommendation would be to wait till we have QML 2 where everything is done 
in OpenGL :-)

Personally I am not a big fan of having animations which would require OpenGL 
in the background. Most of the time the background is not visible, it requires 
resources and puts load on the compositor which has to update the scene 
although nothing changes (full repaints are most expensive).

May I ask why you want to use OpenGL?

Cheers
Martin


[1] 
https://projects.kde.org/projects/kde/kdelibs/repository/revisions/master/entry/plasma/glapplet.cpp
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