# VkPhysicalDeviceShaderAtomicInt64Features(3) Manual Page

## Name

VkPhysicalDeviceShaderAtomicInt64Features - Structure describing features supported by VK_KHR_shader_atomic_int64

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## C Specification

The VkPhysicalDeviceShaderAtomicInt64Features structure is defined as:

    // Provided by VK_VERSION_1_2
    typedef struct VkPhysicalDeviceShaderAtomicInt64Features {
        VkStructureType    sType;
        void*              pNext;
        VkBool32           shaderBufferInt64Atomics;
        VkBool32           shaderSharedInt64Atomics;
    } VkPhysicalDeviceShaderAtomicInt64Features;

or the equivalent

    // Provided by VK_KHR_shader_atomic_int64
    typedef VkPhysicalDeviceShaderAtomicInt64Features VkPhysicalDeviceShaderAtomicInt64FeaturesKHR;

## 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

- `shaderBufferInt64Atomics` indicates whether shaders can perform 64-bit unsigned and signed integer atomic operations on buffers.

- `shaderSharedInt64Atomics` indicates whether shaders can perform 64-bit unsigned and signed integer atomic operations on shared and payload memory.

If the `VkPhysicalDeviceShaderAtomicInt64Features` 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. `VkPhysicalDeviceShaderAtomicInt64Features` can also be used in the `pNext` chain of VkDeviceCreateInfo to selectively enable these features.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceShaderAtomicInt64Features-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_ATOMIC_INT64_FEATURES`

## See Also

VK_KHR_shader_atomic_int64, VK_VERSION_1_2, 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0