D3D12_ROOT_DESCRIPTOR_FLAGS enumeration (d3d12.h)

Specifies the volatility of the data referenced by descriptors in a Root Signature 1.1 description, which can enable some driver optimizations.

Syntax

typedef enum D3D12_ROOT_DESCRIPTOR_FLAGS {
  D3D12_ROOT_DESCRIPTOR_FLAG_NONE = 0,
  D3D12_ROOT_DESCRIPTOR_FLAG_DATA_VOLATILE = 0x2,
  D3D12_ROOT_DESCRIPTOR_FLAG_DATA_STATIC_WHILE_SET_AT_EXECUTE = 0x4,
  D3D12_ROOT_DESCRIPTOR_FLAG_DATA_STATIC = 0x8
} ;

Constants

D3D12_ROOT_DESCRIPTOR_FLAG_NONE Value: 0 Default assumptions are made for data (for SRV/CBV: DATA_STATIC_WHILE_SET_AT_EXECUTE, and for UAV: DATA_VOLATILE).
D3D12_ROOT_DESCRIPTOR_FLAG_DATA_VOLATILE Value: 0x2 Data is volatile. Equivalent to Root Signature Version 1.0.
D3D12_ROOT_DESCRIPTOR_FLAG_DATA_STATIC_WHILE_SET_AT_EXECUTE Value: 0x4 Data is static while set at execute.
D3D12_ROOT_DESCRIPTOR_FLAG_DATA_STATIC Value: 0x8 Data is static. The best potential for driver optimization.

Remarks

This enum is used by the D3D12_ROOT_DESCRIPTOR1 structure.

To specify the volatility of both descriptors and data, refer to D3D12_DESCRIPTOR_RANGE_FLAGS.

Requirements

Requirement	Value
Header	d3d12.h

See also

Core Enumerations

Root Signature Version 1.1