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.