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Cogl

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Enum Cogl.MaterialAlphaFunc

Import line:	Cogl = imports.gi.Cogl;
GIR File:	Cogl-1.0.gir
C documentation:	CoglMaterialAlphaFunc
Enum :	MaterialAlphaFunc

Alpha testing happens before blending primitives with the framebuffer and
gives an opportunity to discard fragments based on a comparison with the
incoming alpha value and a reference alpha value. The CoglMaterialAlphaFunc
determines how the comparison is done.

Values
Properties
	guint32 Cogl.MaterialAlphaFunc.ALWAYS : 519
	guint32 Cogl.MaterialAlphaFunc.EQUAL : 514
	guint32 Cogl.MaterialAlphaFunc.GEQUAL : 518
	guint32 Cogl.MaterialAlphaFunc.GREATER : 516
	guint32 Cogl.MaterialAlphaFunc.LEQUAL : 515
	guint32 Cogl.MaterialAlphaFunc.LESS : 513
	guint32 Cogl.MaterialAlphaFunc.NEVER : 512
	guint32 Cogl.MaterialAlphaFunc.NOTEQUAL : 517

Properties
None

Public Methods
None

Events
None

Used by These Methods / Signals / Properties
Class / Namespace	Method / Signal / Properties
Cogl.Material Method	set_alpha_test_function (MaterialAlphaFunc *alpha_func, gfloat alpha_reference*) : none Before a primitive is blended with the framebuffer, it goes through an alpha test stage which lets you discard fragments based on the current alpha value.