Rendering of OpenGL Textures or Scenes in a QML Window?
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wrote on 10 Feb 2016, 10:54 last edited by nazy 2 Oct 2016, 16:17
Hello,
I am very new to the whole Qt-thing (began about 3 days ago) and I started a media-player as a learning project.
My current problem is, that I want to display an OpenGL texture or scene (the video frames as a texture) in a QML Window.
I tried the scenegraph approach, and as far as I understood it, it will "consume" a complete top-level window with all of the window's QML drawn in front of it.
Since I want to create my own window frame and not use the window manager's this is not really an option (whatever I draw will be behind my QML aswell).
I tried using 2 different top-level windows with one displaying my QML and the other drawing the scene graph, with the scenegraph-window always following the main window. -> THIS IS A MESS, and works only if the window manager supports transparency + does not blur transparent parts)I started trying with a custom QQuickPaintedItem, but havent gotten very far yet.
My question: What is the best (and fastest) way to render an OpenGL texture or a scene in a QML element? Are there examples?
Im gonna be able to provide more information when I get back home.
Thank you!
-
Hello,
I am very new to the whole Qt-thing (began about 3 days ago) and I started a media-player as a learning project.
My current problem is, that I want to display an OpenGL texture or scene (the video frames as a texture) in a QML Window.
I tried the scenegraph approach, and as far as I understood it, it will "consume" a complete top-level window with all of the window's QML drawn in front of it.
Since I want to create my own window frame and not use the window manager's this is not really an option (whatever I draw will be behind my QML aswell).
I tried using 2 different top-level windows with one displaying my QML and the other drawing the scene graph, with the scenegraph-window always following the main window. -> THIS IS A MESS, and works only if the window manager supports transparency + does not blur transparent parts)I started trying with a custom QQuickPaintedItem, but havent gotten very far yet.
My question: What is the best (and fastest) way to render an OpenGL texture or a scene in a QML element? Are there examples?
Im gonna be able to provide more information when I get back home.
Thank you!
wrote on 10 Feb 2016, 11:18 last edited bySince editing doesnt work properly on mobile for me Im gonna add information I forgot as a reply:
Qt/QML version: 5.5, QML2
if relevant:
development OS: debian amd64
window manager: kwin-> developing in a vm (vmware)
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