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D3D10_BLEND_DESC1 structure (d3d10_1.h)

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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

See also

Core Structures