D3D10_DDI_BLEND_DESC structure

The D3D10_DDI_BLEND_DESC structure describes a blend state.

Syntax


typedef struct D3D10_DDI_BLEND_DESC {
  BOOL               AlphaToCoverageEnable;
  BOOL               BlendEnable[D3D10_DDI_SIMULTANEOUS_RENDER_TARGET_COUNT];
  D3D10_DDI_BLEND    SrcBlend;
  D3D10_DDI_BLEND    DestBlend;
  D3D10_DDI_BLEND_OP BlendOp;
  D3D10_DDI_BLEND    SrcBlendAlpha;
  D3D10_DDI_BLEND    DestBlendAlpha;
  D3D10_DDI_BLEND_OP BlendOpAlpha;
  UINT8              RenderTargetWriteMask[D3D10_DDI_SIMULTANEOUS_RENDER_TARGET_COUNT];
} D3D10_DDI_BLEND_DESC;

Members

AlphaToCoverageEnable

[in] A Boolean value that specifies whether transparency coverage is enabled. TRUE indicates transparency coverage is enabled; FALSE indicates transparency coverage is disabled. This member is relevant for multiple-sample antialiasing only.

BlendEnable

[in] An array of Boolean values that specify whether blending is enabled for each associated render target. TRUE indicates blending is enabled; FALSE indicates blending is disabled.

SrcBlend

[in] A D3D10_DDI_BLEND-typed value that indicates the blend mode of the source for all enabled render targets.

DestBlend

[in] A D3D10_DDI_BLEND-typed value that indicates the blend mode of the destination for all enabled render targets.

BlendOp

[in] A D3D10_DDI_BLEND_OP-typed value that indicates the blending operation for all enabled render targets.

SrcBlendAlpha

[in] A D3D10_DDI_BLEND-typed value that indicates the transparency blend mode of the source for all enabled render targets.

DestBlendAlpha

[in] A D3D10_DDI_BLEND-typed value that indicates the transparency blend mode of the destination for all enabled render targets.

BlendOpAlpha

[in] A D3D10_DDI_BLEND_OP-typed value that indicates the transparency blending operation for all enabled render targets.

RenderTargetWriteMask

[in] An array of 8-bit bitwise values that indicate the write properties for each associated render target. Each bit of each element must be set to one of the following values from the D3D10_DDI_COLOR_WRITE_ENABLE enumeration.

ValueMeaning

D3D10_DDI_COLOR_WRITE_ENABLE_RED (1)

Writes red

D3D10_DDI_COLOR_WRITE_ENABLE_GREEN (2)

Writes green

D3D10_DDI_COLOR_WRITE_ENABLE_BLUE (4)

Writes blue

D3D10_DDI_COLOR_WRITE_ENABLE_ALPHA (8)

Writes a transparency level

D3D10_DDI_COLOR_WRITE_ENABLE_ALL (1 | 2 | 4 | 8)

Writes red, green, blue, and a transparency level

 

Requirements

Version

Available in Windows Vista and later versions of the Windows operating systems.

Header

D3d10umddi.h (include D3d10umddi.h)

See also

CalcPrivateBlendStateSize
CreateBlendState
D3D10_DDI_BLEND
D3D10_DDI_BLEND_OP

 

 

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