D3DCMPFUNC enumeration

Defines the supported compare functions.

Syntax

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.

Requirements

See also

Direct3D Enumerations

D3DRENDERSTATETYPE