Qt Scene Graph Problem

[lightwind]

Hello, I met a strange problem.
I try to use the official example of Qt Scene Graph.
I changed the Sequicle's size.

m_renderer->setViewportSize(window()->size() * window()->devicePixelRatio()/2);
glViewport(0, 0, m_viewportSize.width(), m_viewportSize.height());

If I add a Rectangle Item in qml window, the Rectangle shows in Sequicle's range. It's so strangle.

Do someone knows how to address this problem?
I just want to add my own opengl Item in qml window.

[dheerendra]

Squircle size is bigger than the rectangle. Check the size & make appropriate anchors. It will work

[lightwind]

Thank you very much! I find that glviewport() function control this. It draws everything by four elements. I draw what I want at right position, and it worked!