diff options
| author | Laszlo Agocs <laszlo.agocs@digia.com> | 2014-03-31 15:59:18 +0200 |
|---|---|---|
| committer | Laszlo Agocs <laszlo.agocs@digia.com> | 2014-06-24 14:22:19 +0200 |
| commit | 745a71196c8893a35a80a679674bee396606f79b (patch) | |
| tree | f9bc32b7cfe88e65b54372987baf95fcd1db2ada /src/quick/doc/src/concepts | |
| parent | 8eafef976f2a53b5c05967de8b4fb8f01b8e9e7b (diff) | |
Make QQuickRenderControl public
QQuickRenderControl allows rendering Qt Quick 2 scenes into framebuffer
objects which can then be used in arbitrary ways in Qt-based or 3rd party
OpenGL renderers.
[ChangeLog][QtQuick] Introduced QQuickRenderControl as a public API.
Task-number: QTBUG-37944
Change-Id: I84262243b261b35cefdf67ec6bba8127a0f29275
Reviewed-by: Paul Olav Tvete <paul.tvete@digia.com>
Diffstat (limited to 'src/quick/doc/src/concepts')
| -rw-r--r-- | src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc b/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc index 7a54b7a021..1f8147c4d1 100644 --- a/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc +++ b/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc @@ -244,11 +244,11 @@ animations, process events, etc. \endlist -The threaded renderer is currently used by default on Linux, Mac OS X -and EGLFS based QPA platforms, but this is subject to change. It is -possible to force use of the threaded renderer by setting \c -{QML_FORCE_THREADED_RENDERER=1} in the environment. - +The threaded renderer is currently used by default on Linux with +non-Mesa based drivers, OS X and EGLFS based QPA platforms, but this +is subject to change. It is possible to force use of the threaded +renderer by setting \c {QSG_RENDER_LOOP=threaded} in the +environment. \section2 Non-threaded Render Loop @@ -267,6 +267,16 @@ sequence in the non-threaded renderer. \image sg-renderloop-singlethreaded.jpg +\section2 Custom control over rendering with QQuickRenderControl + +When using QQuickRenderControl, the responsibility for driving the +rendering loop is transferred to the application. In this case no +built-in render loop is used. Instead, it is up to the application to +invoke the polish, synchronize and rendering steps at the appropriate +time. It is possible to implement either a threaded or non-threaded +behavior similar to the ones shown above. + + \section2 Mixing Scene Graph and OpenGL The scene graph offers two methods for integrating OpenGL content: |