> Did you try already to use isSubTreeBlocked?
Hi. Yes, now I use this in a form of:
bool CurveNode::isSubtreeBlocked() const
{
return QSGGeometryNode::isSubtreeBlocked() || !m_visible;
}
void CurveNode::setVisible(bool visible)
{ if (m_visible == visible) return; m_visible = visible;
if (!m_visible) m_dirtyState |= DirtySubtreeBlocked; else
m_dirtyState |= DirtyOpacity;
}
but, when I call the setVisible(true) infide of updatePaintNode(), then I
got an assert:
ASSERT: "shadowNode" in file scenegraph\coreapi\qsgbatchrenderer.cpp, line
1293
and, the node does not appeared again as a visible.
пт, 12 апр. 2019 г. в 12:09, Giuseppe D'Angelo via Interest <
interest@qt-project.org>:
> Hello,
>
> Il 12/04/19 09:19, Denis Shienkov ha scritto:
> > I have an own class, derived from the QQuIckItem. This class contains a
> > multiple child QSGGeometryNode-s. Each node has own fragment && vertex
> > shader. Each node draws a curves, which are specified by a points set to
> > a vertex array. So, I need possibility to hide any selected
> > QSGGeometryNode (i.e. do not draw it).
> >
> > How to do it in a right way?
>
> Did you try already to use isSubTreeBlocked?
>
> HTH,
> --
> Giuseppe D'Angelo | giuseppe.dang...@kdab.com | Senior Software Engineer
> KDAB (France) S.A.S., a KDAB Group company
> Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
> KDAB - The Qt, C++ and OpenGL Experts
>
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>
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