# VkPhysicalDeviceShaderAtomicFloatFeaturesEXT(3) Manual Page

## Name

VkPhysicalDeviceShaderAtomicFloatFeaturesEXT - Structure describing features supported by VK_EXT_shader_atomic_float

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## C Specification

The VkPhysicalDeviceShaderAtomicFloatFeaturesEXT structure is defined as:

    // Provided by VK_EXT_shader_atomic_float
    typedef struct VkPhysicalDeviceShaderAtomicFloatFeaturesEXT {
        VkStructureType    sType;
        void*              pNext;
        VkBool32           shaderBufferFloat32Atomics;
        VkBool32           shaderBufferFloat32AtomicAdd;
        VkBool32           shaderBufferFloat64Atomics;
        VkBool32           shaderBufferFloat64AtomicAdd;
        VkBool32           shaderSharedFloat32Atomics;
        VkBool32           shaderSharedFloat32AtomicAdd;
        VkBool32           shaderSharedFloat64Atomics;
        VkBool32           shaderSharedFloat64AtomicAdd;
        VkBool32           shaderImageFloat32Atomics;
        VkBool32           shaderImageFloat32AtomicAdd;
        VkBool32           sparseImageFloat32Atomics;
        VkBool32           sparseImageFloat32AtomicAdd;
    } VkPhysicalDeviceShaderAtomicFloatFeaturesEXT;

## Members

This structure describes the following features:

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

## Description

- `shaderBufferFloat32Atomics` indicates whether shaders can perform 32-bit floating-point load, store and exchange atomic operations on storage buffers.

- `shaderBufferFloat32AtomicAdd` indicates whether shaders can perform 32-bit floating-point add atomic operations on storage buffers.

- `shaderBufferFloat64Atomics` indicates whether shaders can perform 64-bit floating-point load, store and exchange atomic operations on storage buffers.

- `shaderBufferFloat64AtomicAdd` indicates whether shaders can perform 64-bit floating-point add atomic operations on storage buffers.

- `shaderSharedFloat32Atomics` indicates whether shaders can perform 32-bit floating-point load, store and exchange atomic operations on shared and payload memory.

- `shaderSharedFloat32AtomicAdd` indicates whether shaders can perform 32-bit floating-point add atomic operations on shared and payload memory.

- `shaderSharedFloat64Atomics` indicates whether shaders can perform 64-bit floating-point load, store and exchange atomic operations on shared and payload memory.

- `shaderSharedFloat64AtomicAdd` indicates whether shaders can perform 64-bit floating-point add atomic operations on shared and payload memory.

- `shaderImageFloat32Atomics` indicates whether shaders can perform 32-bit floating-point load, store and exchange atomic image operations.

- `shaderImageFloat32AtomicAdd` indicates whether shaders can perform 32-bit floating-point add atomic image operations.

- `sparseImageFloat32Atomics` indicates whether 32-bit floating-point load, store and exchange atomic operations can be used on sparse images.

- `sparseImageFloat32AtomicAdd` indicates whether 32-bit floating-point add atomic operations can be used on sparse images.

If the `VkPhysicalDeviceShaderAtomicFloatFeaturesEXT` structure is included in the `pNext` chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a VkDevice with any features described by `VkPhysicalDeviceShaderAtomicFloatFeaturesEXT`, it must add an instance of the structure, with the desired feature members set to `VK_TRUE`, to the `pNext` chain of VkDeviceCreateInfo when creating the VkDevice.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceShaderAtomicFloatFeaturesEXT-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_ATOMIC_FLOAT_FEATURES_EXT`

## See Also

VK_EXT_shader_atomic_float, VkBool32, VkStructureType

## Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0