[Interest] Qt3D How to draw 2D-Text always facing the Camera

[Volker Enderlein]

Hi all,

when building a rather complex Qt3D-Scene I needed some 2D-Text that has 
a 3D position, is always facing the camera, and fixed in size, 
independent of the camera settings.

While looking over the components provided by Qt3D I stumbled across 
Text2DEntity and thought about how it can be tweaked ot fulfill my 
requirements.

As all my requirements can be done inside a shader I thought about 
whether the QText2DMaterial that is used inside the class can be 
replaced by a custom material. But unfortunately the material is not 
accessible from outside.

Text2DEntity can be embedded in another class that applies the camera 
information to it, but is there an easier solution to this problem?

Cheers Volker

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