Hello,

It seems that `QQuick3DViewport::pick()` returns no result if there is only backfaces under mouse.

The code seems to be in the implementation but it is disabled:

https://codebrowser.dev/qt6/qtquick3d/src/runtimerender/qssgrenderray.cpp.html#154

An example is a QQuick3DModel with "#Rectangle" as source and a material with backface culling disabled.

It can feel counterintuitive not to be able to pick it.

Thanks, have a nice day.