# VkDescriptorSetLayoutCreateFlagBits(3) Manual Page

## Name

VkDescriptorSetLayoutCreateFlagBits - Bitmask specifying descriptor set layout properties

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## C Specification

Bits which can be set in VkDescriptorSetLayoutCreateInfo::`flags`, specifying options for descriptor set layout, are:

    // Provided by VK_VERSION_1_0
    typedef enum VkDescriptorSetLayoutCreateFlagBits {
      // Provided by VK_VERSION_1_2
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT = 0x00000002,
      // Provided by VK_VERSION_1_4
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT = 0x00000001,
      // Provided by VK_EXT_descriptor_buffer
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_DESCRIPTOR_BUFFER_BIT_EXT = 0x00000010,
      // Provided by VK_EXT_descriptor_buffer
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_EMBEDDED_IMMUTABLE_SAMPLERS_BIT_EXT = 0x00000020,
      // Provided by VK_NV_device_generated_commands_compute
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_INDIRECT_BINDABLE_BIT_NV = 0x00000080,
      // Provided by VK_EXT_mutable_descriptor_type
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_HOST_ONLY_POOL_BIT_EXT = 0x00000004,
      // Provided by VK_NV_per_stage_descriptor_set
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_PER_STAGE_BIT_NV = 0x00000040,
      // Provided by VK_KHR_push_descriptor
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT_KHR = VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT,
      // Provided by VK_EXT_descriptor_indexing
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT_EXT = VK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT,
      // Provided by VK_VALVE_mutable_descriptor_type
        VK_DESCRIPTOR_SET_LAYOUT_CREATE_HOST_ONLY_POOL_BIT_VALVE = VK_DESCRIPTOR_SET_LAYOUT_CREATE_HOST_ONLY_POOL_BIT_EXT,
    } VkDescriptorSetLayoutCreateFlagBits;

## Description

- `VK_DESCRIPTOR_SET_LAYOUT_CREATE_PUSH_DESCRIPTOR_BIT` specifies that descriptor sets must not be allocated using this layout, and descriptors are instead pushed by vkCmdPushDescriptorSet.

- `VK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT` specifies that descriptor sets using this layout must be allocated from a descriptor pool created with the `VK_DESCRIPTOR_POOL_CREATE_UPDATE_AFTER_BIND_BIT` bit set. Descriptor set layouts created with this bit set have alternate limits for the maximum number of descriptors per-stage and per-pipeline layout. The non-UpdateAfterBind limits only count descriptors in sets created without this flag. The UpdateAfterBind limits count all descriptors, but the limits may be higher than the non-UpdateAfterBind limits.

- `VK_DESCRIPTOR_SET_LAYOUT_CREATE_INDIRECT_BINDABLE_BIT_NV` specifies that descriptor sets using this layout allows them to be bound with compute pipelines that are created with `VK_PIPELINE_CREATE_INDIRECT_BINDABLE_BIT_NV` flag set to be used in Device-Generated Commands.

- `VK_DESCRIPTOR_SET_LAYOUT_CREATE_DESCRIPTOR_BUFFER_BIT_EXT` specifies that this layout must only be used with descriptor buffers.

- `VK_DESCRIPTOR_SET_LAYOUT_CREATE_EMBEDDED_IMMUTABLE_SAMPLERS_BIT_EXT` specifies that this is a layout only containing immutable samplers that can be bound by vkCmdBindDescriptorBufferEmbeddedSamplersEXT. Unlike normal immutable samplers, embedded immutable samplers do not require the application to provide them in a descriptor buffer.

- `VK_DESCRIPTOR_SET_LAYOUT_CREATE_HOST_ONLY_POOL_BIT_EXT` specifies that descriptor sets using this layout must be allocated from a descriptor pool created with the `VK_DESCRIPTOR_POOL_CREATE_HOST_ONLY_BIT_EXT` bit set. Descriptor set layouts created with this bit have no expressible limit for maximum number of descriptors per-stage. Host descriptor sets are limited only by available host memory, but may be limited for implementation specific reasons. Implementations may limit the number of supported descriptors to UpdateAfterBind limits or non-UpdateAfterBind limits, whichever is larger.

- `VK_DESCRIPTOR_SET_LAYOUT_CREATE_PER_STAGE_BIT_NV` specifies that binding numbers in descriptor sets using this layout may represent different resources and/or types of resources in each stage.

## See Also

VK_VERSION_1_0, VkDescriptorSetLayoutCreateFlags

## 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