# VkPhysicalDeviceMaintenance3Properties(3) Manual Page

## Name

VkPhysicalDeviceMaintenance3Properties - Structure describing descriptor set properties

## C Specification

The `VkPhysicalDeviceMaintenance3Properties` structure is defined as:

    typedef struct VkPhysicalDeviceMaintenance3Properties {
        VkStructureType    sType;
        void*              pNext;
        uint32_t           maxPerSetDescriptors;
        VkDeviceSize       maxMemoryAllocationSize;
    } VkPhysicalDeviceMaintenance3Properties;

or the equivalent

    typedef VkPhysicalDeviceMaintenance3Properties VkPhysicalDeviceMaintenance3PropertiesKHR;

## Members

The members of the `VkPhysicalDeviceMaintenance3Properties` structure describe the following implementation-dependent limits:

## Description

- `sType` is the type of this structure.

- `pNext` is `NULL` or a pointer to an extension-specific structure.

- `maxPerSetDescriptors` is a maximum number of descriptors (summed over all descriptor types) in a single descriptor set that is guaranteed to satisfy any implementation-dependent constraints on the size of a descriptor set itself. Applications can query whether a descriptor set that goes beyond this limit is supported using vkGetDescriptorSetLayoutSupport.

- `maxMemoryAllocationSize` is the maximum size of a memory allocation that can be created, even if there is more space available in the heap.

If the `VkPhysicalDeviceMaintenance3Properties` structure is included in the `pNext` chain of VkPhysicalDeviceProperties2, it is filled with the implementation-dependent limits.

Valid Usage (Implicit)

- `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_3_PROPERTIES`

## See Also

`VkDeviceSize`, 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 (c) 2014-2020 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.