Qt.WA_TranslucentBackground.. not working over openGL view..

[mtherrell]

i would like to have a QGraphicsView serve as a HUD over a 3rd-party openGL view (Maya modelPanel).

i am able to get my "overLay" window to be translucent when its over normal 3rd-party interface elements. but when it overlaps this openGL modelPanel, i cannot see the maya 3d view through my QGraphicsview background. (see attatched image)

i know it must be possible because if i do this: "window.setWindowOpacity", i can see the opengl view through the simiopaque window.

but i do not want my QGraphics Items etc to be transparent, only the background of the Scene.

how can i make only the background of the graphics scene transparent to both regular third party ui, and 3rd party opengl view?

(maya does have a pretty good API with the ability to draw native openGL stuff like a HUd over its views, but i want the QGraphics Scene functionality as a HUD without having to draw all my own 2d HUD using maya API)

thanks for any help!