Hi,
On 05/12/2016 18:54, Philip Schuchardt wrote:
I want to render QML to an OpenGL texture through a framebuffer and then
share that texture with Qt3D.
there is a working WIP progress implementation of this on gerrit at:
https://codereview.qt-project.org/#/q/status:open+project:qt/qt3d+branch:wip/qtquickintegration,n,z
Rendering to a framebuffer is fairly
straight forward with a
QQuickRenderControl.
Yes. The trickier part is mapping events from 3D space through to the
QtQuick scene.
A good example of it is
in https://doc.qt.io/qt-5/qtquick-rendercontrol-example.html. Is there
any way to share OpenGL textures between an OpenGL context that I
control and the OpenGL context that qt3d controls? Also, does qt3d use a
sperate OpenGL context than QML scene graph (onscreen)?
It depends :) If you have Qt Quick in charge and are embedding Qt 3D
into Qt Quick scene using a Scene3D item, then Qt 3D uses the same GL
context as Qt Quick.
If Qt 3D is in charge it uses it's own context.
With the above series of patches, we use the Qt 3D context to render Qt
Quick using QQuickRenderControl as you mention.
We're hoping to get this into Qt 5.9 but in the meantime you can
cherry-pick those changes to give it a test.
Cheers,
Sean
--
Phi|ip
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