Qt3DRender.QAlphaTest ¶

概要 ¶

详细描述 ¶

As the OpenGL documentation explains; The alpha test discards a fragment conditional on the outcome of a comparison between the incoming fragment’s alpha value and a constant reference value.

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

参数

parent – QNode

PySide2.Qt3DRender.Qt3DRender.QAlphaTest. AlphaFunction ¶

Enumeration for the alpha function values

常量	描述
Qt3DRender.QAlphaTest.Never	Never pass alpha test
Qt3DRender.QAlphaTest.Always	Always pass alpha test
Qt3DRender.QAlphaTest.Less	Pass alpha test if fragment alpha is less than reference value
Qt3DRender.QAlphaTest.LessOrEqual	Pass alpha test if fragment alpha is less than or equal to reference value
Qt3DRender.QAlphaTest.Equal	Pass alpha test if fragment alpha is equal to reference value
Qt3DRender.QAlphaTest.GreaterOrEqual	Pass alpha test if fragment alpha is greater than or equal to reference value
Qt3DRender.QAlphaTest.Greater	Pass alpha test if fragment alpha is greater than reference value
Qt3DRender.QAlphaTest.NotEqual	Pass alpha test if fragment alpha is not equal to reference value

PySide2.Qt3DRender.Qt3DRender.QAlphaTest. alphaFunction ( ) ¶

返回类型

AlphaFunction

另请参阅

setAlphaFunction()

PySide2.Qt3DRender.Qt3DRender.QAlphaTest. alphaFunctionChanged ( alphaFunction ) ¶

参数

alphaFunction – AlphaFunction

PySide2.Qt3DRender.Qt3DRender.QAlphaTest. referenceValue ( ) ¶

返回类型

float

另请参阅

setReferenceValue()

PySide2.Qt3DRender.Qt3DRender.QAlphaTest. referenceValueChanged ( referenceValue ) ¶

参数

referenceValue – float

PySide2.Qt3DRender.Qt3DRender.QAlphaTest. setAlphaFunction ( alphaFunction ) ¶

参数

alphaFunction – AlphaFunction

另请参阅

alphaFunction()

PySide2.Qt3DRender.Qt3DRender.QAlphaTest. setReferenceValue ( referenceValue ) ¶

参数

referenceValue – float

另请参阅

referenceValue()