D3DBLEND

Defines the supported blend mode.

typedef enum _D3DBLEND {
    D3DBLEND_ZERO               =  1,
    D3DBLEND_ONE                =  2,
    D3DBLEND_SRCCOLOR           =  3,
    D3DBLEND_INVSRCCOLOR        =  4,
    D3DBLEND_SRCALPHA           =  5,
    D3DBLEND_INVSRCALPHA        =  6,
    D3DBLEND_DESTALPHA          =  7,
    D3DBLEND_INVDESTALPHA       =  8,
    D3DBLEND_DESTCOLOR          =  9,
    D3DBLEND_INVDESTCOLOR       = 10,
    D3DBLEND_SRCALPHASAT        = 11,
    D3DBLEND_BOTHSRCALPHA       = 12,
    D3DBLEND_BOTHINVSRCALPHA    = 13,

    D3DBLEND_FORCE_DWORD        = 0x7fffffff
} D3DBLEND;

Constants

D3DBLEND_ZERO

Blend factor is (0, 0, 0, 0).

D3DBLEND_ONE

Blend factor is (1, 1, 1, 1).

D3DBLEND_SRCCOLOR

Blend factor is (R_s, G_s, B_s, A_s).

D3DBLEND_INVSRCCOLOR

Blend factor is (1–R_s, 1–G_s, 1–B_s, 1–A_s).

D3DBLEND_SRCALPHA

Blend factor is (A_s, A_s, A_s, A_s).

D3DBLEND_INVSRCALPHA

Blend factor is (1–A_s, 1–A_s, 1–A_s, 1–A_s).

D3DBLEND_DESTALPHA

Blend factor is (A_d, A_d, A_d, A_d).

D3DBLEND_INVDESTALPHA

Blend factor is (1–A_d, 1–A_d, 1–A_d, 1–A_d).

D3DBLEND_DESTCOLOR

Blend factor is (R_d, G_d, B_d, A_d).

D3DBLEND_INVDESTCOLOR

Blend factor is (1–R_d, 1–G_d, 1–B_d, 1–A_d).

D3DBLEND_SRCALPHASAT

Blend factor is (f, f, f, 1); f = min(A_s, 1–A_d).

D3DBLEND_BOTHSRCALPHA

Obsolete. For Microsoft® DirectX® 6.0 and later, you can achieve the same affect by setting the source and destination blend factors to D3DBLEND_SRCALPHA and D3DBLEND_INVSRCALPHA in separate calls.

D3DBLEND_BOTHINVSRCALPHA

Source blend factor is (1–A_s, 1–A_s, 1–A_s, 1–A_s), and destination blend factor is (A_s, A_s, A_s, A_s); the destination blend selection is overridden. This blend mode is supported only for the D3DRS_SRCBLEND render state.

D3DBLEND_FORCE_DWORD

Forces this enumeration to compile to 32 bits in size. This value is not used.

Remarks

In the member descriptions above, the RGBA values of the source and destination are indicated by the subscripts s and d.

The values in this enumerated type are used by the D3DRS_DESTBLEND render state.

Requirements

  Header: Declared in D3d8types.h.

See Also

D3DRENDERSTATETYPE