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D3D12_CONSERVATIVE_RASTERIZATION_TIER enumeration (d3d12.h)

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Identifies the tier level of conservative rasterization.

Syntax

typedef enum D3D12_CONSERVATIVE_RASTERIZATION_TIER {
  D3D12_CONSERVATIVE_RASTERIZATION_TIER_NOT_SUPPORTED = 0,
  D3D12_CONSERVATIVE_RASTERIZATION_TIER_1 = 1,
  D3D12_CONSERVATIVE_RASTERIZATION_TIER_2 = 2,
  D3D12_CONSERVATIVE_RASTERIZATION_TIER_3 = 3
} ;

Constants

 
D3D12_CONSERVATIVE_RASTERIZATION_TIER_NOT_SUPPORTED
Value: 0
Conservative rasterization is not supported.
D3D12_CONSERVATIVE_RASTERIZATION_TIER_1
Value: 1
Tier 1 enforces a maximum 1/2 pixel uncertainty region and does not support post-snap degenerates. This is good for tiled rendering, a texture atlas, light map generation and sub-pixel shadow maps.
D3D12_CONSERVATIVE_RASTERIZATION_TIER_2
Value: 2
Tier 2 reduces the maximum uncertainty region to 1/256 and requires post-snap degenerates not be culled. This tier is helpful for CPU-based algorithm acceleration (such as voxelization).
D3D12_CONSERVATIVE_RASTERIZATION_TIER_3
Value: 3
Tier 3 maintains a maximum 1/256 uncertainty region and adds support for inner input coverage. Inner input coverage adds the new value SV_InnerCoverage to High Level Shading Language (HLSL). This is a 32-bit scalar integer that can be specified on input to a pixel shader, and represents the underestimated conservative rasterization information (that is, whether a pixel is guaranteed-to-be-fully covered). This tier is helpful for occlusion culling.

Remarks

This enum is used by the D3D12_FEATURE_DATA_D3D12_OPTIONS structure.

Requirements

Requirement Value
Header d3d12.h

See also

Conservative Rasterization

Core Enumerations

D3D12_CONSERVATIVE_RASTERIZATION_MODE