D3DCMPFUNC

Defines the supported compare functions.

typedef enum 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,
    D3DCMP_FORCE_DWORD = 0x7fffffff,
} D3DCMPFUNC, *LPD3DCMPFUNC;

Constants

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.

D3DCMP_FORCE_DWORD

Forces this enumeration to compile to 32 bits in size. Without this value, some compilers would allow this enumeration to compile to a size other than 32 bits. This value is not used.

Remarks

The values in this enumerated type define the supported compare functions for the D3DRS_ZFUNC, D3DRS_ALPHAFUNC, and D3DRS_STENCILFUNC render states.

See Also

D3DRENDERSTATETYPE