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| author | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2022-09-15 13:21:53 +0200 |
|---|---|---|
| committer | Friedemann Kleint <Friedemann.Kleint@qt.io> | 2022-09-16 10:30:36 +0200 |
| commit | cf32b66adbfb489cd6e5d5c0bf3f741b59ba204c (patch) | |
| tree | 44be69c9487f5d4db1092d061a555bd6001c1ab4 /examples/quick/scenegraph/openglunderqml/doc/openglunderqml.rst | |
| parent | b20d6f6906f91f9df608d7800f4e27f7a7160abe (diff) | |
Move examples around
Change the directory structure to closer match that of Qt.
Task-number: PYSIDE-841
Change-Id: I87aca346b6654aafe94dd1fb83c184c182ceb2e6
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
Diffstat (limited to 'examples/quick/scenegraph/openglunderqml/doc/openglunderqml.rst')
| -rw-r--r-- | examples/quick/scenegraph/openglunderqml/doc/openglunderqml.rst | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/examples/quick/scenegraph/openglunderqml/doc/openglunderqml.rst b/examples/quick/scenegraph/openglunderqml/doc/openglunderqml.rst new file mode 100644 index 000000000..6a89a99d9 --- /dev/null +++ b/examples/quick/scenegraph/openglunderqml/doc/openglunderqml.rst @@ -0,0 +1,21 @@ +OpenGL under QML Squircle +========================= + +The OpenGL under QML example shows how an application can make use of the +QQuickWindow::beforeRendering() signal to draw custom OpenGL content under a Qt +Quick scene. This signal is emitted at the start of every frame, before the +scene graph starts its rendering, thus any OpenGL draw calls that are made as +a response to this signal, will stack under the Qt Quick items. + +As an alternative, applications that wish to render OpenGL content on top of +the Qt Quick scene, can do so by connecting to the +QQuickWindow::afterRendering() signal. + +In this example, we will also see how it is possible to have values that are +exposed to QML which affect the OpenGL rendering. We animate the threshold +value using a NumberAnimation in the QML file and this value is used by the +OpenGL shader program that draws the squircles. + +.. image:: squircle.png + :width: 400 + :alt: Squircle Screenshot |