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

[david crémoux]

Hello Volker,

I guess you can achieve it with regular QText2DEntity, with a specific 
frame graph branch in your rendering for your 2d text, a layer filter 
and a custom camera (based on your main camera).

david

On 18-Dec-18 14:37, Volker Enderlein wrote:
> 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
>