VkPhysicalDeviceVulkanMemoryModelFeatures(3)

# VkPhysicalDeviceVulkanMemoryModelFeatures(3) Manual Page

## Name

VkPhysicalDeviceVulkanMemoryModelFeatures - Structure describing features supported by the memory model

## C Specification

The `VkPhysicalDeviceVulkanMemoryModelFeatures` structure is defined as:

    // Provided by VK_VERSION_1_2
    typedef struct VkPhysicalDeviceVulkanMemoryModelFeatures {
        VkStructureType    sType;
        void*              pNext;
        VkBool32           vulkanMemoryModel;
        VkBool32           vulkanMemoryModelDeviceScope;
        VkBool32           vulkanMemoryModelAvailabilityVisibilityChains;
    } VkPhysicalDeviceVulkanMemoryModelFeatures;

    // Provided by VK_KHR_vulkan_memory_model
    // Equivalent to VkPhysicalDeviceVulkanMemoryModelFeatures
    typedef VkPhysicalDeviceVulkanMemoryModelFeatures VkPhysicalDeviceVulkanMemoryModelFeaturesKHR;

## 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

- `vulkanMemoryModel` indicates whether shader modules can declare the `VulkanMemoryModel` capability.

- `vulkanMemoryModelDeviceScope` indicates whether the Vulkan Memory Model can use `Device` scope synchronization. This also indicates whether shader modules can declare the `VulkanMemoryModelDeviceScope` capability.

- `vulkanMemoryModelAvailabilityVisibilityChains` indicates whether the Vulkan Memory Model can use availability and visibility chains with more than one element.

If the `VkPhysicalDeviceVulkanMemoryModelFeaturesKHR` 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 `VkPhysicalDeviceVulkanMemoryModelFeaturesKHR`, 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-VkPhysicalDeviceVulkanMemoryModelFeatures-sType-sType
  `sType` must be VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_MEMORY_MODEL_FEATURES

Structure Chaining

Extends the structures

  - VkDeviceCreateInfo

  - VkPhysicalDeviceFeatures2

## See Also

VK_KHR_vulkan_memory_model, 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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0