QBlendEquationArguments Class

class Qt3DRender ::QBlendEquationArguments

Encapsulates blending information: specifies how the incoming values (what's going to be drawn) are going to affect the existing values (what is already drawn). 更多...

头：	#include <QBlendEquationArguments>
qmake:	QT += 3drender
Since:	Qt 5.5
实例化：	BlendEquationArguments
继承：	Qt3DRender::QRenderState

该类在 Qt 5.5 引入。

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公共类型

enum	Blending { Zero, One, SourceColor, SourceAlpha, Source1Alpha, …, OneMinusSource1Color0 }

特性

bufferIndex : int destinationAlpha : Blending destinationRgb : Blending

sourceAlpha : Blending sourceRgb : Blending

公共函数

	QBlendEquationArguments (Qt3DCore::QNode * parent = nullptr)
int	bufferIndex () const
Qt3DRender::QBlendEquationArguments::Blending	destinationAlpha () const
Qt3DRender::QBlendEquationArguments::Blending	destinationRgb () const
Qt3DRender::QBlendEquationArguments::Blending	sourceAlpha () const
Qt3DRender::QBlendEquationArguments::Blending	sourceRgb () const

公共槽

void	setBufferIndex (int index )
void	setDestinationAlpha (Qt3DRender::QBlendEquationArguments::Blending destinationAlpha )
void	setDestinationRgb (Qt3DRender::QBlendEquationArguments::Blending destinationRgb )
void	setDestinationRgba (Qt3DRender::QBlendEquationArguments::Blending destinationRgba )
void	setSourceAlpha (Qt3DRender::QBlendEquationArguments::Blending sourceAlpha )
void	setSourceRgb (Qt3DRender::QBlendEquationArguments::Blending sourceRgb )
void	setSourceRgba (Qt3DRender::QBlendEquationArguments::Blending sourceRgba )

信号

void	bufferIndexChanged (int index )
void	destinationAlphaChanged (Qt3DRender::QBlendEquationArguments::Blending destinationAlpha )
void	destinationRgbChanged (Qt3DRender::QBlendEquationArguments::Blending destinationRgb )
void	destinationRgbaChanged (Qt3DRender::QBlendEquationArguments::Blending destinationRgba )
void	sourceAlphaChanged (Qt3DRender::QBlendEquationArguments::Blending sourceAlpha )
void	sourceRgbChanged (Qt3DRender::QBlendEquationArguments::Blending sourceRgb )
void	sourceRgbaChanged (Qt3DRender::QBlendEquationArguments::Blending sourceRgba )

详细描述

OpenGL pre-3.0: Set the same blend state for all draw buffers (one QBlendEquationArguments) OpenGL 3.0-pre4.0: Set the same blend state for all draw buffers, but can disable blending for particular buffers (one QBlendEquationArguments for setting glBlendFunc, n QBlendEquationArgumentss for enabling/disabling Draw Buffers) OpenGL 4.0+: Can set blend state individually for each draw buffer.

成员类型文档编制

enum QBlendEquationArguments:: Blending

常量	值	描述
Qt3DRender::QBlendEquationArguments::Zero	0	GL_ZERO
Qt3DRender::QBlendEquationArguments::One	1	GL_ONE
Qt3DRender::QBlendEquationArguments::SourceColor	0x0300	GL_SRC_COLOR
Qt3DRender::QBlendEquationArguments::SourceAlpha	0x0302	GL_SRC_ALPHA
Qt3DRender::QBlendEquationArguments::Source1Alpha	0x303	GL_SRC1_ALPHA
Qt3DRender::QBlendEquationArguments::Source1Color	0x304	GL_SRC1_COLOR
Qt3DRender::QBlendEquationArguments::DestinationColor	0x0306	GL_DST_COLOR
Qt3DRender::QBlendEquationArguments::DestinationAlpha	0x0304	GL_DST_ALPHA
Qt3DRender::QBlendEquationArguments::SourceAlphaSaturate	0x0308	GL_SRC_ALPHA_SATURATE
Qt3DRender::QBlendEquationArguments::ConstantColor	0x8001	0GL_CONSTANT_COLOR
Qt3DRender::QBlendEquationArguments::ConstantAlpha	0x8003	GL_CONSTANT_ALPHA
Qt3DRender::QBlendEquationArguments::OneMinusSourceColor	0x0301	GL_ONE_MINUS_SRC_COLOR
Qt3DRender::QBlendEquationArguments::OneMinusSourceAlpha	0x0303	GL_ONE_MINUS_SRC_ALPHA
Qt3DRender::QBlendEquationArguments::OneMinusDestinationAlpha	0x0305	GL_ONE_MINUS_DST_ALPHA
Qt3DRender::QBlendEquationArguments::OneMinusDestinationColor	0x0307	GL_ONE_MINUS_DST_COLOR
Qt3DRender::QBlendEquationArguments::OneMinusConstantColor	0x8002	GL_ONE_MINUS_CONSTANT_COLOR
Qt3DRender::QBlendEquationArguments::OneMinusConstantAlpha	0x8004	GL_ONE_MINUS_CONSTANT_ALPHA
Qt3DRender::QBlendEquationArguments::OneMinusSource1Alpha	0x8005	GL_ONE_MINUS_SRC1_ALPHA
Qt3DRender::QBlendEquationArguments::OneMinusSource1Color	0x8006	GL_ONE_MINUS_SRC1_COLOR
Qt3DRender::QBlendEquationArguments::OneMinusSource1Color0	OneMinusSource1Color	GL_ONE_MINUS_SRC1_COLOR (deprecated)

特性文档编制

bufferIndex : int

Specifies the index of the Draw Buffer that this BlendEquationArguments applies to. If negative, this will apply to all Draw Buffers.

访问函数：

int	bufferIndex () const
void	setBufferIndex (int index )

通知程序信号：

void	bufferIndexChanged (int index )

destinationAlpha : Blending

访问函数：

Qt3DRender::QBlendEquationArguments::Blending	destinationAlpha () const
void	setDestinationAlpha (Qt3DRender::QBlendEquationArguments::Blending destinationAlpha )

通知程序信号：

void	destinationAlphaChanged (Qt3DRender::QBlendEquationArguments::Blending destinationAlpha )

destinationRgb : Blending

访问函数：

Qt3DRender::QBlendEquationArguments::Blending	destinationRgb () const
void	setDestinationRgb (Qt3DRender::QBlendEquationArguments::Blending destinationRgb )

通知程序信号：

void	destinationRgbChanged (Qt3DRender::QBlendEquationArguments::Blending destinationRgb )

sourceAlpha : Blending

访问函数：

Qt3DRender::QBlendEquationArguments::Blending	sourceAlpha () const
void	setSourceAlpha (Qt3DRender::QBlendEquationArguments::Blending sourceAlpha )

通知程序信号：

void	sourceAlphaChanged (Qt3DRender::QBlendEquationArguments::Blending sourceAlpha )

sourceRgb : Blending

访问函数：

Qt3DRender::QBlendEquationArguments::Blending	sourceRgb () const
void	setSourceRgb (Qt3DRender::QBlendEquationArguments::Blending sourceRgb )

通知程序信号：

void	sourceRgbChanged (Qt3DRender::QBlendEquationArguments::Blending sourceRgb )

成员函数文档编制

QBlendEquationArguments:: QBlendEquationArguments ( Qt3DCore::QNode * parent = nullptr)

The constructor creates a new blend state object with the specified parent .

[signal] void QBlendEquationArguments:: destinationRgbaChanged ( Qt3DRender::QBlendEquationArguments::Blending destinationRgba )

Notify that both destinationRgb and destinationAlpha properties have changed to destinationRgba .

[slot] void QBlendEquationArguments:: setDestinationRgba ( Qt3DRender::QBlendEquationArguments::Blending destinationRgba )

Change both destinationRgb and destinationAlpha properties to destinationRgba .

[slot] void QBlendEquationArguments:: setSourceRgba ( Qt3DRender::QBlendEquationArguments::Blending sourceRgba )

Change both sourceRgb and sourceAlpha properties to sourceRgba .

[signal] void QBlendEquationArguments:: sourceRgbaChanged ( Qt3DRender::QBlendEquationArguments::Blending sourceRgba )

Notify that both sourceRgb and sourceAlpha properties have changed to sourceRgba .

内容

• 公共类型

• 特性

• 公共函数

• 公共槽

• 信号

• 详细描述