This extension allows a shader to perform 16-bit floating-point atomic operations on buffer and workgroup memory as well as floating-point atomic minimum and maximum operations on buffer, workgroup, and image memory. It advertises the SPIR-V AtomicFloat16AddEXT capability which allows atomic add operations on 16-bit floating-point numbers and the SPIR-V AtomicFloat16MinMaxEXT, AtomicFloat32MinMaxEXT and AtomicFloat64MinMaxEXT capabilities which allow atomic minimum and maximum operations on floating-point numbers. The supported operations include OpAtomicFAddEXT, OpAtomicFMinEXT and OpAtomicFMaxEXT.

VK_EXT_shader_atomic_float2

Name String

VK_EXT_shader_atomic_float2

Extension Type

Device extension

Registered Extension Number

274

Revision

1

Extension and Version Dependencies

VK_EXT_shader_atomic_float

Contact

• Faith Ekstrand gfxstrand

Other Extension Metadata

Last Modified Date

2020-08-14

IP Status

No known IP claims.

Interactions and External Dependencies

• This extension requires the VK_EXT_shader_atomic_float extension.
• This extension requires SPV_EXT_shader_atomic_float_min_max and SPV_EXT_shader_atomic_float16_add
• This extension provides API support for GLSL_EXT_shader_atomic_float2

Contributors

• Faith Ekstrand, Intel