Qt3DRender.QBlitFramebuffer ¶

概要 ¶

详细描述 ¶

This node inserts a glBlitFrameBuffer or an equivalent into the command stream. This provides a more efficient method for copying rectangles between textures or surface backbuffers wrapped by QRenderTarget than drawing textured quads. It also supports scaling with the specified interpolation method.

注意

In practice the QBlitFramebuffer node will often be used in combination with QNoDraw since a blit should not involve issuing draw calls for any entities.

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

param parent

QNode

构造新 QBlitFramebuffer 采用给定 parent .

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. InterpolationMethod ¶

Specifies the interpolation applied if the image is stretched.

常量	描述
Qt3DRender.QBlitFramebuffer.Nearest	Nearest-neighbor interpolation.
Qt3DRender.QBlitFramebuffer.Linear	Linear interpolation.

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. destination ( ) ¶

返回类型

QRenderTarget

Returns the destination render target.

另请参阅

setDestination()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. destinationAttachmentPoint ( ) ¶

返回类型

AttachmentPoint

Returns the destination attachment point.

另请参阅

setDestinationAttachmentPoint()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. destinationAttachmentPointChanged ( ) ¶

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. destinationChanged ( ) ¶

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. destinationRect ( ) ¶

返回类型

QRectF

Returns the destination rectangle.

另请参阅

setDestinationRect()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. destinationRectChanged ( ) ¶

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. interpolationMethod ( ) ¶

返回类型

InterpolationMethod

Returns the interpolation method.

另请参阅

setInterpolationMethod()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. interpolationMethodChanged ( ) ¶

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. setDestination ( destination ) ¶

参数

destination – QRenderTarget

Sets the destination render target. The default value is nullptr, in which case the destination is assumed to be be the default framebuffer (i.e. the backbuffer of the current surface), if there is one.

注意

the source and destination must not refer to the same render target.

注意

As with other nodes, destination gets automatically parented to the QBlitFramebuffer instance when no parent has been set. The lifetime is also tracked, meaning the destination reverts to nullptr in case the currently set destination 被销毁。

另请参阅

destination()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. setDestinationAttachmentPoint ( destinationAttachmentPoint ) ¶

参数

destinationAttachmentPoint – AttachmentPoint

设置 destinationAttachmentPoint . Defaults to Qt3DRender::QRenderTargetOutput::AttachmentPoint::Color0.

另请参阅

destinationAttachmentPoint()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. setDestinationRect ( destinationRect ) ¶

参数

destinationRect – QRectF

Sets the destination rectangle to outputRect . The coordinates are assumed to follow the normal Qt coordinate system, meaning Y runs from top to bottom.

另请参阅

destinationRect()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. setInterpolationMethod ( interpolationMethod ) ¶

参数

interpolationMethod – InterpolationMethod

设置 interpolationMethod that is applied if the image is stretched. Defaults to Linear.

另请参阅

interpolationMethod()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. setSource ( source ) ¶

参数

source – QRenderTarget

Sets the source render target. The default value is nullptr, in which case the source is assumed to be be the default framebuffer (i.e. the backbuffer of the current surface), if there is one.

注意

the source and destination must not refer to the same render target.

注意

As with other nodes, source gets automatically parented to the QBlitFramebuffer instance when no parent has been set. The lifetime is also tracked, meaning the source reverts to nullptr in case the currently set source 被销毁。

另请参阅

source()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. setSourceAttachmentPoint ( sourceAttachmentPoint ) ¶

参数

sourceAttachmentPoint – AttachmentPoint

设置 sourceAttachmentPoint . Defaults to Qt3DRender::QRenderTargetOutput::AttachmentPoint::Color0.

另请参阅

sourceAttachmentPoint()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. setSourceRect ( sourceRect ) ¶

参数

sourceRect – QRectF

Sets the source rectangle to inputRect . The coordinates are assumed to follow the normal Qt coordinate system, meaning Y runs from top to bottom.

另请参阅

sourceRect()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. source ( ) ¶

返回类型

QRenderTarget

Returns the source render target.

另请参阅

setSource()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. sourceAttachmentPoint ( ) ¶

返回类型

AttachmentPoint

Returns the source attachment point.

另请参阅

setSourceAttachmentPoint()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. sourceAttachmentPointChanged ( ) ¶

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. sourceChanged ( ) ¶

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. sourceRect ( ) ¶

返回类型

QRectF

Returns the source rectangle.

另请参阅

setSourceRect()

PySide2.Qt3DRender.Qt3DRender.QBlitFramebuffer. sourceRectChanged ( ) ¶