QBlitFramebuffer¶
- PyQt5.Qt3DRender.QBlitFramebuffer
Inherits from QFrameGraphNode.
Description¶
FrameGraph node to transfer a rectangle of pixel values from one region of a render target to another.
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.
Note: 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.
Enums¶
- InterpolationMethod
TODO
Member
Value
Description
Linear TODO
TODO
Nearest TODO
TODO
Methods¶
- __init__(parent: QNode = None)
Constructs a new QBlitFramebuffer with the given parent.
- destination() → QRenderTarget
Returns the destination render target.
See also
- destinationAttachmentPoint() → AttachmentPoint
Returns the destination attachment point.
See also
- destinationRect() → QRectF
Returns the destination rectangle.
See also
- interpolationMethod() → InterpolationMethod
Returns the interpolation method.
See also
- setDestination(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.
Note: the source and destination must not refer to the same render target.
Note: 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 is destroyed.
See also
- setDestinationAttachmentPoint(AttachmentPoint)
Sets the destinationAttachmentPoint. Defaults to Qt3DRender::QRenderTargetOutput::AttachmentPoint::Color0.
See also
- setDestinationRect(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.
See also
- setInterpolationMethod(InterpolationMethod)
Sets the interpolationMethod that is applied if the image is stretched. Defaults to Linear.
See also
- setSource(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.
Note: the source and destination must not refer to the same render target.
Note: 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 is destroyed.
See also
- setSourceAttachmentPoint(AttachmentPoint)
Sets the sourceAttachmentPoint. Defaults to Qt3DRender::QRenderTargetOutput::AttachmentPoint::Color0.
See also
- setSourceRect(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.
See also
- source() → QRenderTarget
Returns the source render target.
See also
- sourceAttachmentPoint() → AttachmentPoint
Returns the source attachment point.
See also
- sourceRect() → QRectF
Returns the source rectangle.
See also
Signals¶
- destinationAttachmentPointChanged()
TODO
- destinationChanged()
TODO
- destinationRectChanged()
TODO
- interpolationMethodChanged()
TODO
- sourceAttachmentPointChanged()
TODO
- sourceChanged()
TODO
- sourceRectChanged()
TODO
