Describes state changes that the material wants to apply to the currently active graphics pipeline state.

Unlike QSGMaterialShader , directly issuing state change commands with the underlying graphics API is not possible with QSGMaterialShader . This is mainly because the concept of individually changeable states is considered deprecated and not supported with modern graphics APIs.

Therefore, it is up to QSGMaterialShader to expose a data structure with the set of supported states, which the material can change in its updatePipelineState() implementation, if there is one. The scenegraph will then internally apply these changes to the active graphics pipeline state, then rolling them back as appropriate.

When updateGraphicsPipelineState() is called, the struct has all members set to a valid value to reflect the renderer’s current state. Not changing any values (or not reimplementing the function) indicates that the material is fine with the defaults (which are dynamic however, depending on QSGMaterial flags, for example).

Constant

Description

QSGMaterialShader.GraphicsPipelineState.Zero

QSGMaterialShader.GraphicsPipelineState.One

QSGMaterialShader.GraphicsPipelineState.SrcColor

QSGMaterialShader.GraphicsPipelineState.OneMinusSrcColor

QSGMaterialShader.GraphicsPipelineState.DstColor

QSGMaterialShader.GraphicsPipelineState.OneMinusDstColor

QSGMaterialShader.GraphicsPipelineState.SrcAlpha

QSGMaterialShader.GraphicsPipelineState.OneMinusSrcAlpha

QSGMaterialShader.GraphicsPipelineState.DstAlpha

QSGMaterialShader.GraphicsPipelineState.OneMinusDstAlpha

QSGMaterialShader.GraphicsPipelineState.ConstantColor

QSGMaterialShader.GraphicsPipelineState.OneMinusConstantColor

QSGMaterialShader.GraphicsPipelineState.ConstantAlpha

QSGMaterialShader.GraphicsPipelineState.OneMinusConstantAlpha

QSGMaterialShader.GraphicsPipelineState.SrcAlphaSaturate

QSGMaterialShader.GraphicsPipelineState.Src1Color

QSGMaterialShader.GraphicsPipelineState.OneMinusSrc1Color

QSGMaterialShader.GraphicsPipelineState.Src1Alpha

QSGMaterialShader.GraphicsPipelineState.OneMinusSrc1Alpha

Constant

Description

QSGMaterialShader.GraphicsPipelineState.R

QSGMaterialShader.GraphicsPipelineState.G

QSGMaterialShader.GraphicsPipelineState.B

QSGMaterialShader.GraphicsPipelineState.A

Constant

Description

QSGMaterialShader.GraphicsPipelineState.CullNone

QSGMaterialShader.GraphicsPipelineState.CullFront

QSGMaterialShader.GraphicsPipelineState.CullBack

Specifies the polygon rasterization mode

Polygon Mode (Triangle Fill Mode in Metal, Fill Mode in D3D) specifies the fill mode used when rasterizing polygons. Polygons may be drawn as solids (Fill), or as a wire mesh (Line).

Warning

OpenGL ES does not support the Line polygon mode. OpenGL ES will rasterize all polygons as filled no matter what polygon mode is set. Using Line will make your application non-portable.

Constant

Description

QSGMaterialShader.GraphicsPipelineState.Fill

The interior of the polygon is filled (default)

QSGMaterialShader.GraphicsPipelineState.Line

Boundary edges of the polygon are drawn as line segments.

This variable holds Blend constant applicable when a blending factor is set to use a constant value..

This variable holds Enables blending..

Note

Changing this flag should be done with care, and is best avoided. Rather, materials should always use the QSGMaterial::Blend flag to indicate that they wish to use blending. Changing this value from false to true for a material that did not declare QSGMaterial::Blend can lead to unexpected visual results.

This variable holds Color write mask..

This variable holds Cull mode..

This variable holds Destination alpha blending factor..

Applies only when separateBlendFactors is set to true.

This variable holds Destination blending factor, either RGB or RGBA depending on separateBlendFactors ..

This variable holds Polygon rasterization mode..

This variable holds Indicates that alpha blending factors are specified separately..

False by default, meaning both RGB and alpha blending factors are defined by srcColor and dstColor . When set to true, the alpha blending factors are taken from srcAlpha and dstAlpha instead, and srcColor and dstColor applies only to RGB.

This variable holds Source alpha blending factor..

Applies only when separateBlendFactors is set to true.

This variable holds Source blending factor, either RGB or RGBA depending on separateBlendFactors ..