D3DCMPFUNC

The D3DCMPFUNC enumerated type defines the supported compare functions for the D3DRENDERSTATE_ZFUNC and D3DRENDERSTATE_ALPHAFUNC values of the D3DRENDERSTATETYPE enumerated type.

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;

Members

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 enumerated type to be 32 bits in size.

QuickInfo

  Windows NT: Use version 4.0 or later.
  Windows: Use Windows 95 or later. Available as a redistributable for Windows 95.
  Windows CE: Unsupported.
  Header: Declared in d3dtypes.h.