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| author | Miikka Heikkinen <miikka.heikkinen@digia.com> | 2014-02-19 10:53:01 +0200 |
|---|---|---|
| committer | Miikka Heikkinen <miikka.heikkinen@digia.com> | 2014-02-20 10:20:19 +0200 |
| commit | e083a4ccd8ca7f890b4ee43057305e4a272256d6 (patch) | |
| tree | 9b9255ed1cc49799e471c4ac4e157e784313f0eb /examples/datavisualization/qmloscilloscope/doc | |
| parent | 9189a2dbab552ccff123ecb652083fe5616b5261 (diff) | |
Document the rendering changes
Change-Id: I100a516f6f5d8047b88f6d81cd8794979211df20
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
Diffstat (limited to 'examples/datavisualization/qmloscilloscope/doc')
| -rw-r--r-- | examples/datavisualization/qmloscilloscope/doc/src/qmloscilloscope.qdoc | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/examples/datavisualization/qmloscilloscope/doc/src/qmloscilloscope.qdoc b/examples/datavisualization/qmloscilloscope/doc/src/qmloscilloscope.qdoc index e5a84b86..c574950b 100644 --- a/examples/datavisualization/qmloscilloscope/doc/src/qmloscilloscope.qdoc +++ b/examples/datavisualization/qmloscilloscope/doc/src/qmloscilloscope.qdoc @@ -107,4 +107,20 @@ DataSource at requested intervals. The label update is also triggered on each cycle: \snippet qmloscilloscope/qml/qmloscilloscope/main.qml 3 + + \section1 Enabling direct rendering + + Since this application potentially deals with a lot of rapidly changing data, we use direct + rendering mode for performance. To enable antialiasing in this mode the surface format of the application + window needs to be changed, as the default format used by QQuickView doesn't support antialiasing. + We use the utility function provided by Qt Data Visualization to change the surface format + in \c main.cpp: + + \snippet qmloscilloscope/main.cpp 1 + \dots 0 + \snippet qmloscilloscope/main.cpp 2 + + On the QML side, direct rendering mode is enabled via \l{AbstractGraph3D::renderingMode}{renderingMode} property: + + \snippet qmloscilloscope/qml/qmloscilloscope/main.qml 5 */ |