D3DBLENDOP enumeration
Defines the supported blend operations. See Remarks for definitions of terms.
Syntax
typedef enum D3DBLENDOP {
D3DBLENDOP_ADD = 1,
D3DBLENDOP_SUBTRACT = 2,
D3DBLENDOP_REVSUBTRACT = 3,
D3DBLENDOP_MIN = 4,
D3DBLENDOP_MAX = 5,
D3DBLENDOP_FORCE_DWORD = 0x7fffffff
} D3DBLENDOP, *LPD3DBLENDOP;
Constants
-
D3DBLENDOP_ADD
-
The result is the destination added to the source. Result = Source + Destination
-
D3DBLENDOP_SUBTRACT
-
The result is the destination subtracted from to the source. Result = Source - Destination
-
D3DBLENDOP_REVSUBTRACT
-
The result is the source subtracted from the destination. Result = Destination - Source
-
D3DBLENDOP_MIN
-
The result is the minimum of the source and destination. Result = MIN(Source, Destination)
-
D3DBLENDOP_MAX
-
The result is the maximum of the source and destination. Result = MAX(Source, Destination)
-
D3DBLENDOP_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
Source, Destination, and Result are defined as:
| Term | Type | Description |
|---|---|---|
| Source | Input | Color of the source pixel before the operation. |
| Destination | Input | Color of the pixel in the destination buffer before the operation. |
| Result | Output | Returned value that is the blended color resulting from the operation. |
This enumerated type defines values used by the following render states:
- D3DRS_BLENDOP
- D3DRS_BLENDOPALPHA
Requirements
| Requirement | Value |
|---|---|
| Header |
|
See also