Hi,
On 15/04/2017 11:45, Oleg Evseev wrote:
Hi,
I have a Scene3D with different QEntities.
One of the entity have a slot with calculations which involves updating
QGeometry of one of its child (QEntity) and sometimes creating new child
entity.
I'm looking for a way to move those calculations into separate thread.
But according to http://doc.qt.io/qt-5/threads-qobject.html the first
constraint to be aware of is "The child of a QObject must always be
created in the thread where the parent was created".
So the only thing that comes to mind is to use signals from separate
thread to main one where is parent entity as the request to create new
child entity and another signal from main thread to separate with
pointer of new created child.
Is this a right way to do it?
We do something analogous with the sceneparser plugins which for the
scene file being loaded, it creates a QEntity subtree complete with
GeometryRenderer, Material, Transform components. These are then moved
to the main thread with QObject::moveToThread and grafted into the main
tree with QNode::setParent(placeToGraftThisSubTreeIn).
Hope this helps,
Sean
Thanks in advance for help.
---
With regards, Oleg
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