AlphaFunc

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Action

Specify the Alpha Test Function

 

 

Syntax

AlphaFunc ref, func 

 

 

Remarks

ref

Specifies the reference value for the alpha test. The initial value is 0

func

Specifies the test function, one of NEVER, LESS, LEQUAL, GREATER, GEQUAL, EQUAL, NOTEQUAL, or ALWAYS. The default value is ALWAYS.

 

Graphics Context

The values of func and ref are part of the graphics context, as described in section 4.1 in FT800 Series Programmer Guide.PDF from FTDI.