Enables or disables entire subtrees of framegraph nodes. More...
| Header: | #include <QSubtreeEnabler> |
| CMake: | find_package(Qt6 REQUIRED COMPONENTS 3drender)target_link_libraries(mytarget PRIVATE Qt6::3drender) |
| qmake: | QT += 3drender |
| In QML: | SubtreeEnabler |
| Inherits: | Qt3DRender::QFrameGraphNode |
| Status: | Deprecated |
| enum | Enablement { Persistent, SingleShot } |
| Qt3DRender::QSubtreeEnabler::Enablement | enablement() const |
| void | requestUpdate() |
| void | setEnablement(Qt3DRender::QSubtreeEnabler::Enablement enablement) |
| void | enablementChanged(Qt3DRender::QSubtreeEnabler::Enablement enablement) |
While QFrameGraphNodes can be individually enabled and disabled via the enabled property, this can become tedious when an entire path needs to be turned on or off. QSubtreeEnabler is a convenience
node that makes this use case trivial, allowing all of its children to be controlled by a single switch.
QSubtreeEnabler is enabled by default.
Specifies whether subtree enablement is persistent or transient.
| Constant | Value | Description |
|---|---|---|
Qt3DRender::QSubtreeEnabler::Persistent |
0 |
The value of enabled is persistent. This is the default. |
Qt3DRender::QSubtreeEnabler::SingleShot |
1 |
The value of enabled will last for a single frame and then be reset to false. This might be used for a subtree drawing to an FBO, for example, to only update the FBO when the relevant portions of the scene changed. |
Controls whether subtree enablement is persistent or transient.
Access functions:
| Qt3DRender::QSubtreeEnabler::Enablement | enablement() const |
| void | setEnablement(Qt3DRender::QSubtreeEnabler::Enablement enablement) |
Notifier signal:
| void | enablementChanged(Qt3DRender::QSubtreeEnabler::Enablement enablement) |
[invokable] void QSubtreeEnabler::requestUpdate()Requests that the subtree be enabled.
A convenience method intended to be used with SingleShot enablement.
Note: This function can be invoked via the meta-object system and from QML. See Q_INVOKABLE.
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