Qt3DRender.QLayerFilter ¶

概要 ¶

详细描述 ¶

A QLayerFilter can be used to instruct the renderer as to which layer(s) to draw in that branch of the frame graph. QLayerFilter selects which entities to draw based on the QLayer instance(s) added to the QLayerFilter and as components to QEntity .

QLayerFilter can be configured to select or discard entities with a specific QLayer 从属 filterMode property. By default, entities referencing one of the QLayer objects that are also being referenced by the QLayerFilter are selected ( AcceptAnyMatchingLayers ).

Within the FrameGraph tree, multiple QLayerFilter nodes can be nested within a branch going from root to a leaf. In that case the filtering will first operate on all entities of the scene using the filtering method specified by the first declared QLayerFilter . Then the filtered subset of entities will be filtered again based on the filtering method set on the second QLayerFilter declared. This is then repeated until all QLayerFilter nodes of the branch have been consumed.

class PySide2.Qt3DRender.Qt3DRender. QLayerFilter ( [ parent=None ] ) ¶

param parent

QNode

The constructor creates an instance with the specified parent .

PySide2.Qt3DRender.Qt3DRender.QLayerFilter. FilterMode ¶

Specifies the rules for selecting entities to draw.

常量	描述
Qt3DRender.QLayerFilter.AcceptAnyMatchingLayers	Accept entities that reference one or more QLayer objects added to this QLayerFilter . This is the default
Qt3DRender.QLayerFilter.AcceptAllMatchingLayers	Accept entities that reference all the QLayer objects added to this QLayerFilter
Qt3DRender.QLayerFilter.DiscardAnyMatchingLayers	Discard entities that reference one or more QLayer objects added to this QLayerFilter
Qt3DRender.QLayerFilter.DiscardAllMatchingLayers	Discard entities that reference all QLayer objects added to this QLayerFilter

PySide2.Qt3DRender.Qt3DRender.QLayerFilter. addLayer ( layer ) ¶

参数

layer – QLayer

Add layer to the current list of layers

PySide2.Qt3DRender.Qt3DRender.QLayerFilter. filterMode ( ) ¶

返回类型

FilterMode

另请参阅

setFilterMode()

PySide2.Qt3DRender.Qt3DRender.QLayerFilter. filterModeChanged ( filterMode ) ¶

参数

filterMode – FilterMode

PySide2.Qt3DRender.Qt3DRender.QLayerFilter. layers ( ) ¶

返回类型

Returns the current list of layers

PySide2.Qt3DRender.Qt3DRender.QLayerFilter. removeLayer ( layer ) ¶

参数

layer – QLayer

移除 layer from the current list of layers

PySide2.Qt3DRender.Qt3DRender.QLayerFilter. setFilterMode ( filterMode ) ¶

参数

filterMode – FilterMode

另请参阅

filterMode()