diff options
author | Miikka Heikkinen <miikka.heikkinen@theqtcompany.com> | 2014-10-20 10:18:48 +0300 |
---|---|---|
committer | Miikka Heikkinen <miikka.heikkinen@theqtcompany.com> | 2014-10-20 10:53:31 +0300 |
commit | ad6b0a468fac879b217209eb91b68e6bc143d6c4 (patch) | |
tree | 4681ad7733ed84771bcf02d0ce89ecd1fdfc733a /src/datavisualization/doc/src | |
parent | 68fefe456b4bb99e4ac4544e1083542536e5c3ed (diff) |
Document the issue with large surfaces and static scatters.
OpenGL ES2 and/or 32bit environments can have relatively low maximum
supported vertex counts per draw call, so large surfaces and static
scatters may not get rendered.
Task-number: QTRD-3364
Change-Id: I7fd024b0428548ac7e2ca043a06d01d2442dd226
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
Diffstat (limited to 'src/datavisualization/doc/src')
-rw-r--r-- | src/datavisualization/doc/src/qtdatavisualization-qml-abstractdeclarative.qdoc | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/src/datavisualization/doc/src/qtdatavisualization-qml-abstractdeclarative.qdoc b/src/datavisualization/doc/src/qtdatavisualization-qml-abstractdeclarative.qdoc index b26f0818..b5a678e5 100644 --- a/src/datavisualization/doc/src/qtdatavisualization-qml-abstractdeclarative.qdoc +++ b/src/datavisualization/doc/src/qtdatavisualization-qml-abstractdeclarative.qdoc @@ -342,11 +342,20 @@ * \qmlproperty AbstractGraph3D.OptimizationHints AbstractGraph3D::optimizationHints * \since QtDataVisualization 1.1 * - * Defines if the rendering optimization is default or static. Default mode provides the full feature set at - * reasonable performance. Static optimizes graph rendering and is ideal for large non-changing data sets. - * It is slower with dynamic data changes and item rotations. Selection is not optimized, so using it with - * massive data sets is not advisable. Static works only on the Scatter graph. + * Defines if the rendering optimization is default or static. Default mode provides the full + * feature set at reasonable performance. Static mode optimizes graph rendering and is ideal for + * large non-changing data sets. It is slower with dynamic data changes and item rotations. + * Selection is not optimized, so using it with massive data sets is not advisable. + * Static works only on the Scatter graph. * Defaults to \c{OptimizationDefault}. + * + * \note On some environments, large graphs using static optimization may not render, because + * all of the items are rendered using a single draw call, and different graphics drivers have + * different maximum vertice counts per call that they support. + * This is mostly an issue on 32bit and/or OpenGL ES2 platforms. + * To work around this issue, choose an item mesh with low vertex count or use the point mesh. + * + * \sa Abstract3DSeries::mesh */ /*! |