Unsolved QRenderCapture help

[AndersDK]

Hello

I create a 3D image in my GUI that look something like this:

I create it like this

Qt3DExtras::Qt3DWindow *view = new Qt3DExtras::Qt3DWindow();
view->defaultFrameGraph()->setClearColor(QColor(QRgb(0x4d4d4f)));
QWidget *container = QWidget::createWindowContainer(view);

Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();

Then I add camera, light and objects to the rootEntity and add the root to the view. As you can see from the image, it works ok.

Now I would like to save the image to a png file (preferable with the black background as transparent if possible).

I found that QRenderCapture might be the way to go, and found the following example:

http://code.qt.io/cgit/qt/qt3d.git/tree/tests/manual/rendercapture-cpp

However, when I try to implement it, the reply never completes.

I also tried to save the container widget as an image, but then i only get the black background.

Do anyone know how to save the 3D rendered image to a png file?

[ODБOï]

@AndersDK Hi,
Do you need a 'screenshot' ?

[AndersDK]

A screenshot could work, but it should only be of the 3D image part of my GUI. Also I guess if I use a screen shot, I can't make the black background transparent?

Furthermore I would like to get the image, without showing it in the GUI. I mean render the 3D part, but not showing it to the user. Don't know if that is even possible