CONST_D3DCMPFUNC

The CONST_D3DCMPFUNC enumeration defines the supported compare functions for the D3DRENDERSTATE_ZFUNC, D3DRENDERSTATE_ALPHAFUNC, and D3DRENDERSTATE_STENCILFUNC render states.

Enum CONST_D3DCMPFUNC
    D3DCMP_NEVER        = 1
    D3DCMP_LESS         = 2
    D3DCMP_EQUAL        = 3
    D3DCMP_LESSEQUAL    = 4
    D3DCMP_GREATER      = 5
    D3DCMP_NOTEQUAL     = 6
    D3DCMP_GREATEREQUAL = 7
    D3DCMP_ALWAYS       = 8
End Enum

D3DCMP_NEVER

Always fail the test.

D3DCMP_LESS

Accept the new pixel if its value is less than the value of the current pixel.

D3DCMP_EQUAL

Accept the new pixel if its value equals the value of the current pixel.

D3DCMP_LESSEQUAL

Accept the new pixel if its value is less than or equal to the value of the current pixel.

D3DCMP_GREATER

Accept the new pixel if its value is greater than the value of the current pixel.

D3DCMP_NOTEQUAL

Accept the new pixel if its value does not equal the value of the current pixel.

D3DCMP_GREATEREQUAL

Accept the new pixel if its value is greater than or equal to the value of the current pixel.

D3DCMP_ALWAYS

Always pass the test.