- class QSubtreeEnabler¶
Enables or disables entire subtrees of framegraph nodes. More…
Synopsis¶
Properties¶
Methods¶
def
__init__()
def
enablement()
def
requestUpdate()
def
setEnablement()
Signals¶
Note
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Detailed Description¶
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.- class Enablement¶
Specifies whether subtree enablement is persistent or transient.
Constant
Description
Qt3DRender.QSubtreeEnabler.Persistent
The value of enabled is persistent. This is the default.
Qt3DRender.QSubtreeEnabler.SingleShot
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.
Note
Properties can be used directly when
from __feature__ import true_property
is used or via accessor functions otherwise.- property enablementᅟ: Qt3DRender.QSubtreeEnabler.Enablement¶
Controls whether subtree enablement is persistent or transient.
- Access functions:
- __init__([parent=None])¶
- Parameters:
parent –
QNode
- enablement()¶
- Return type:
Enablement
See also
setEnablement()
Getter of property
enablementᅟ
.- enablementChanged(enablement)¶
- Parameters:
enablement –
Enablement
Notification signal of property
enablementᅟ
.- requestUpdate()¶
Requests that the subtree be enabled.
A convenience method intended to be used with
SingleShot
enablement.- setEnablement(enablement)¶
- Parameters:
enablement –
Enablement
See also
enablement()
Setter of property
enablementᅟ
.