QAbstractRayCaster

An abstract base class for ray casting in 3d scenes. More

Inherited by: QRayCaster, QScreenRayCaster

New in version 5.11.

Synopsis

Functions

Slots

Signals

Detailed Description

QAbstractRayCaster is an abstract base class for casting rays into a 3d scene. QAbstractRayCaster can not be directly instantiated, but rather through its subclasses. QAbstractRayCaster specifies common properties for all ray casters, such as run mode and layer handling, while leaving the actual ray casting details to the subclasses.

Ray castings differs from picking (using QObjectPicker ) in that it does not require mouse events to trigger.

By default, the instances of QAbstractRayCaster are disabled. When enabled, the specified ray will be tested for intersecting objects at every frame. The hits property will be updated with the results of the ray casting, even if no objects are found.

The QPickingSettings can be used to control the ray casting, such as which primitives are tested and how the results are returned.

Furthermore, QLayer components can be used to control how entities, or entity sub-graphs, react to ray casting.

Note

Components derived from QAbstractRayCaster should not be shared amount multiple entities.

See also

QRayCaster QScreenRayCaster QObjectPicker QPickingSettings QNoPicking

class PySide2.Qt3DRender.QAbstractRayCaster([parent=None])
Parameters

parentPySide2.Qt3DCore.QNode

PySide2.Qt3DRender.QAbstractRayCaster.RunMode

This enumeration specifies how often ray casting is performed

Constant

Description

Qt3DRender.QAbstractRayCaster.Continuous

Ray casting is performed at every frame as long as the component is enabled.

Qt3DRender.QAbstractRayCaster.SingleShot

Ray casting is done once then the component disables itself. This is the default

PySide2.Qt3DRender.QAbstractRayCaster.FilterMode

Specifies the rules for selecting entities to test for raycasting.

Constant

Description

Qt3DRender.QAbstractRayCaster.AcceptAnyMatchingLayers

Accept entities that reference one or more QLayer objects added to this QAbstractRayCaster . This is the default

Qt3DRender.QAbstractRayCaster.AcceptAllMatchingLayers

Accept entities that reference all the QLayer objects added to this QAbstractRayCaster

Qt3DRender.QAbstractRayCaster.DiscardAnyMatchingLayers

Discard entities that reference one or more QLayer objects added to this QAbstractRayCaster

Qt3DRender.QAbstractRayCaster.DiscardAllMatchingLayers

Discard entities that reference all QLayer objects added to this QAbstractRayCaster

PySide2.Qt3DRender.QAbstractRayCaster.addLayer(layer)
Parameters

layerPySide2.Qt3DRender.QLayer

Add layer to the current list of layers

PySide2.Qt3DRender.QAbstractRayCaster.filterMode()
Return type

FilterMode

Holds the filter mode specifying the entities to select for ray casting tests.

The default value is AcceptMatchingLayers.

PySide2.Qt3DRender.QAbstractRayCaster.filterModeChanged(filterMode)
Parameters

filterModeFilterMode

PySide2.Qt3DRender.QAbstractRayCaster.hits()
Return type

PySide2.Qt3DRender.QAbstractRayCaster.hitsChanged(hits)
Parameters

hits

PySide2.Qt3DRender.QAbstractRayCaster.layers()
Return type

Returns the current list of layers

PySide2.Qt3DRender.QAbstractRayCaster.removeLayer(layer)
Parameters

layerPySide2.Qt3DRender.QLayer

Remove layer from the current list of layers

PySide2.Qt3DRender.QAbstractRayCaster.runMode()
Return type

RunMode

Holds the run mode controlling how often ray casting tests are performed.

If set to SingleShot (the default), when the component is enabled, a single ray casting test will be performed and the component will automatically disable itself.

If set to Continuous, ray casting tests will be performed at every frame as long as the component is enabled.

PySide2.Qt3DRender.QAbstractRayCaster.runModeChanged(runMode)
Parameters

runModeRunMode

PySide2.Qt3DRender.QAbstractRayCaster.setFilterMode(filterMode)
Parameters

filterModeFilterMode

Holds the filter mode specifying the entities to select for ray casting tests.

The default value is AcceptMatchingLayers.

PySide2.Qt3DRender.QAbstractRayCaster.setRunMode(runMode)
Parameters

runModeRunMode

Holds the run mode controlling how often ray casting tests are performed.

If set to SingleShot (the default), when the component is enabled, a single ray casting test will be performed and the component will automatically disable itself.

If set to Continuous, ray casting tests will be performed at every frame as long as the component is enabled.