We want to render multiple independent but similar qml-scenes and use them as textures in an additional 3d-scene, that is shown on-screen. What would be the best way to achieve this? Should we go for multiple qml-scene-graphs or use a single one and update it within one frame? How can we make Qt render the scene-graph multiple times within on frame? We would like to keep the framerate as high as possible, of course ;-)
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Did you ever find a solution? – sordid Jul 07 '17 at 22:16
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After looking into the code again (from a project not actively developed since years) I think that we wanted to implement our own object picking but ended up using the "default" picking method, similar to the current [object-picker](https://doc.qt.io/qt-5/qt3drender-qobjectpicker.html). Before that we actually had a version rendering the scene in virtual buffers not seen on the screen, as having multiple scenes graphs was to cumbersome. – Jonathan Striebel Jul 13 '17 at 20:49