[webkit-qt] WebGL rendering offscreenQ

[Allan Sandfeld Jensen]

On Tuesday 11 November 2014, Jorge Fernandez Monteagudo wrote:
> >On Tuesday 11 November 2014, Jorge Fernandez Monteagudo wrote:
> >> Hi Allan! Thank you for answering.
> >> 
> >> I'm open to use the correct way to do it. My only need is to be able to
> >> render the given page in my opengl context. The typical example
> >> rendering a WebGL in the faces of a cube in OpenGL will be great! Is
> >> there any demo like this? :)
> >> 
> >> Or, at least, where can I find an example using QGraphicsWebView with a
> >> QGLWidget viewport?
> >
> >See the documentation of QGraphicsView and especially setViewPort (
> >http://qt-project.org/doc/qt-5/qgraphicsview.html ). In Qt 5.4 you can
> >also use a QOpenGLWidget. It basically sets a specific widget as the
> >output, qtwebkit can find that widget and use the same opengl-context in
> >case it uses one. Without this qtwebkit would have its own widget that
> >can mess with yours and would still need copying over CPU to blit
> >textures.
> 
> Hi Allan,
> 
> Only to clarify... Which I need QGraphicsView or QGraphicsWebView?? And
> do you recommend me to update to Qt 5.4 or remain in the Qt 5.3.2?
> 
You need both, the QGraphicsView hosts the scene graph and the 
QGraphicsWebView is an item in the scene. Qt 5.4 is not released yet, so for a 
stable development 5.3.2 is probably better, but 5.4 will be out before the 
end of the year.

You can try looking in Tools/QtTestBrowser for an example that can both work 
with QWebView or a QGraphicsWebView, it is probably overcomplicated for your 
usecase, but it should demonstrate what is needed.

Best regards
`Allan