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Describes the blend state for a Direct3D 10.1 device.
Syntax
typedef struct D3D10_BLEND_DESC1 {
BOOL AlphaToCoverageEnable;
BOOL IndependentBlendEnable;
D3D10_RENDER_TARGET_BLEND_DESC1 RenderTarget[8];
} D3D10_BLEND_DESC1;
Members
AlphaToCoverageEnable
Type: BOOL
Determines whether or not to use the alpha-to-coverage multisampling technique when setting a render-target pixel.
IndependentBlendEnable
Type: BOOL
Set to TRUE to enable independent blending in simultaneous render targets. If set to FALSE, only the RenderTarget[0] members are used. RenderTarget[1..7] are ignored.
RenderTarget[8]
Type: D3D10_RENDER_TARGET_BLEND_DESC1
An array of render-target-blend descriptions (see D3D10_RENDER_TARGET_BLEND_DESC1); these correspond to the eight rendertargets that can be set to the output-merger stage at one time.
Remarks
To see how blending is done, see Output-Merger Stage (Direct3D 10).
These are the default values for the blend description.
| State | Default Value |
|---|---|
| AlphaToCoverageEnable | FALSE |
| IndependentBlendEnable | FALSE |
| RenderTarget[0].BlendEnable | FALSE |
| RenderTarget[0].SrcBlend | D3D10_BLEND_ONE |
| RenderTarget[0].DestBlend | D3D10_BLEND_ZERO |
| RenderTarget[0].BlendOp | D3D10_BLEND_OP_ADD |
| RenderTarget[0].SrcBlendAlpha | D3D10_BLEND_ONE |
| RenderTarget[0].DestBlendAlpha | D3D10_BLEND_ZERO |
| RenderTarget[0].BlendOpAlpha | D3D10_BLEND_OP_ADD |
| RenderTarget[0].RenderTargetWriteMask | D3D10_COLOR_WRITE_ENABLE_ALL |
This structure requires Windows Vista Service Pack 1.
If the driver type is set to D3D_DRIVER_TYPE_HARDWARE, the feature level is set to less than or equal to D3D_FEATURE_LEVEL_9_3, and the pixel format of the render target is set to DXGI_FORMAT_R8G8B8A8_UNORM_SRGB, DXGI_FORMAT_B8G8R8A8_UNORM_SRGB, or DXGI_FORMAT_B8G8R8X8_UNORM_SRGB, the device performs the blend in standard RGB (sRGB) space and not in linear space. However, if the feature level is set to greater than D3D_FEATURE_LEVEL_9_3, the device performs the blend in linear space.
Requirements
| Requirement | Value |
|---|---|
| Header | d3d10_1.h |