// d3d12umddi.h

typedef enum D3D12DDI_SHADER_MIN_PRECISION {
  D3D12DDI_SHADER_MIN_PRECISION_NONE = 0x0,
  D3D12DDI_SHADER_MIN_PRECISION_10_BIT = 0x1,
  D3D12DDI_SHADER_MIN_PRECISION_16_BIT = 0x2
} ;
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Windows Driver Kit DDI reference (ne-d3d12umddi-d3d12ddi_shader_min_precision)

Description

The D3D12DDI_SHADER_MIN_PRECISION enumeration describes the driver's minimum precision support options for shaders.

Constants

`D3D12DDI_SHADER_MIN_PRECISION_NONE:0x0`

The driver supports only full 32-bit precision for all shader stages.

`D3D12DDI_SHADER_MIN_PRECISION_10_BIT:0x1`

The driver supports 10-bit precision.

`D3D12DDI_SHADER_MIN_PRECISION_16_BIT:0x2`

The driver supports 16-bit precision.

Remarks

The returned information just indicates that the graphics hardware can perform HLSL operations at a lower precision than the standard 32-bit float precision, but doesn’t guarantee that the graphics hardware will actually run at a lower precision.

D3D12DDI_SHADER_MIN_PRECISION - NtDoc