[Interest] Entity sub-tree opacity in Quick3D 2.0

[Unai IRIGOYEN]

Hi,
I have been playing with the upcoming Qt3D those days and especially the QML 
APIs.
I was wondering if there is a means of changing the opacity of an entity and 
all children at the same time (same behavior as in QtQuick). At the moment I 
must change the opacity in the material color of each entity in the tree which 
results in verbose code. I have been trying to see if I can apply an effect to 
the sub-tree using alpha composition or shaders but I'm out of luck.

As a side note, I'm also interested in particles for Qt3D. I understand it's 
not priority number 1 but just take this as a vote for the feature.

Best regards.
-- 


Unai IRIGOYEN