QAlphaTest

PyQt5.Qt3DRender.QAlphaTest

Inherits from QRenderState.

Description

The QAlphaTest class specify alpha reference test.

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.

Enums

AlphaFunction

Enumeration for the alpha function values

Member	Value	Description
Always	0x0207	Always pass alpha test
Equal	0x0202	Pass alpha test if fragment alpha is equal to reference value
Greater	0x0204	Pass alpha test if fragment alpha is greater than reference value
GreaterOrEqual	0x0206	Pass alpha test if fragment alpha is greater than or equal to reference value
Less	0x0201	Pass alpha test if fragment alpha is less than reference value
LessOrEqual	0x0203	Pass alpha test if fragment alpha is less than or equal to reference value
Never	0x0200	Never pass alpha test
NotEqual	0x0205	Pass alpha test if fragment alpha is not equal to reference value

Methods

__init__(parent: QNode = None)

TODO

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alphaFunction() → AlphaFunction

See also

setAlphaFunction().

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referenceValue() → float

See also

setReferenceValue().

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setAlphaFunction(AlphaFunction)

See also

alphaFunction().

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setReferenceValue(float)

See also

referenceValue().

Signals

alphaFunctionChanged(AlphaFunction)

TODO

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referenceValueChanged(float)

TODO