QBlendEquationArguments Class
class Qt3DRender::QBlendEquationArgumentsEncapsulates blending information: specifies how the incoming values (what's going to be drawn) are going to affect the existing values (what is already drawn). More...
| Header: | #include <QBlendEquationArguments> |
| qmake: | QT += 3drender |
| Since: | Qt 5.5 |
| Instantiated By: | BlendEquationArguments |
| Inherits: | Qt3DRender::QRenderState |
This class was introduced in Qt 5.5.
Public Types
| enum | Blending { Zero, One, SourceColor, SourceAlpha, Source1Alpha, …, OneMinusSource1Color0 } |
Properties
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Public Functions
| int | bufferIndex() const |
| Blending | destinationAlpha() const |
| Blending | destinationRgb() const |
| Blending | sourceAlpha() const |
| Blending | sourceRgb() const |
Public Slots
| void | setBufferIndex(int index) |
| void | setDestinationAlpha(Blending destinationAlpha) |
| void | setDestinationRgb(Blending destinationRgb) |
| void | setDestinationRgba(Blending destinationRgba) |
| void | setSourceAlpha(Blending sourceAlpha) |
| void | setSourceRgb(Blending sourceRgb) |
| void | setSourceRgba(Blending sourceRgba) |
Signals
| void | bufferIndexChanged(int index) |
| void | destinationAlphaChanged(Blending destinationAlpha) |
| void | destinationRgbChanged(Blending destinationRgb) |
| void | destinationRgbaChanged(Blending destinationRgba) |
| void | sourceAlphaChanged(Blending sourceAlpha) |
| void | sourceRgbChanged(Blending sourceRgb) |
| void | sourceRgbaChanged(Blending sourceRgba) |
Detailed Description
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.
Member Type Documentation
enum QBlendEquationArguments::Blending
| Constant | Value | Description |
|---|---|---|
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) |
Property Documentation
bufferIndex : int
Specifies the index of the Draw Buffer that this BlendEquationArguments applies to. If negative, this will apply to all Draw Buffers.
Access functions:
| int | bufferIndex() const |
| void | setBufferIndex(int index) |
Notifier signal:
| void | bufferIndexChanged(int index) |
destinationAlpha : Blending
Access functions:
| Blending | destinationAlpha() const |
| void | setDestinationAlpha(Blending destinationAlpha) |
Notifier signal:
| void | destinationAlphaChanged(Blending destinationAlpha) |
destinationRgb : Blending
Access functions:
| Blending | destinationRgb() const |
| void | setDestinationRgb(Blending destinationRgb) |
Notifier signal:
| void | destinationRgbChanged(Blending destinationRgb) |
sourceAlpha : Blending
Access functions:
| Blending | sourceAlpha() const |
| void | setSourceAlpha(Blending sourceAlpha) |
Notifier signal:
| void | sourceAlphaChanged(Blending sourceAlpha) |
sourceRgb : Blending
Access functions:
| Blending | sourceRgb() const |
| void | setSourceRgb(Blending sourceRgb) |
Notifier signal:
| void | sourceRgbChanged(Blending sourceRgb) |
Member Function Documentation
[signal] void QBlendEquationArguments::destinationRgbaChanged(Blending destinationRgba)
Notify that both destinationRgb and destinationAlpha properties have changed to destinationRgba.
[slot] void QBlendEquationArguments::setDestinationRgba(Blending destinationRgba)
Change both destinationRgb and destinationAlpha properties to destinationRgba.
[slot] void QBlendEquationArguments::setSourceRgba(Blending sourceRgba)
Change both sourceRgb and sourceAlpha properties to sourceRgba.
[signal] void QBlendEquationArguments::sourceRgbaChanged(Blending sourceRgba)
Notify that both sourceRgb and sourceAlpha properties have changed to sourceRgba.