C Specification
Bits which can be set in VkDescriptorPoolCreateInfo::flags to
enable operations on a descriptor pool are:
// Provided by VK_VERSION_1_0
typedef enum VkDescriptorPoolCreateFlagBits {
VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT = 0x00000001,
// Provided by VK_VERSION_1_2
VK_DESCRIPTOR_POOL_CREATE_UPDATE_AFTER_BIND_BIT = 0x00000002,
// Provided by VK_VALVE_mutable_descriptor_type
VK_DESCRIPTOR_POOL_CREATE_HOST_ONLY_BIT_VALVE = 0x00000004,
// Provided by VK_EXT_descriptor_indexing
VK_DESCRIPTOR_POOL_CREATE_UPDATE_AFTER_BIND_BIT_EXT = VK_DESCRIPTOR_POOL_CREATE_UPDATE_AFTER_BIND_BIT,
} VkDescriptorPoolCreateFlagBits;
Description
-
VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BITspecifies that descriptor sets can return their individual allocations to the pool, i.e. all of vkAllocateDescriptorSets, vkFreeDescriptorSets, and vkResetDescriptorPool are allowed. Otherwise, descriptor sets allocated from the pool must not be individually freed back to the pool, i.e. only vkAllocateDescriptorSets and vkResetDescriptorPool are allowed. -
VK_DESCRIPTOR_POOL_CREATE_UPDATE_AFTER_BIND_BITspecifies that descriptor sets allocated from this pool can include bindings with theVK_DESCRIPTOR_BINDING_UPDATE_AFTER_BIND_BITbit set. It is valid to allocate descriptor sets that have bindings that do not set theVK_DESCRIPTOR_BINDING_UPDATE_AFTER_BIND_BITbit from a pool that hasVK_DESCRIPTOR_POOL_CREATE_UPDATE_AFTER_BIND_BITset. -
VK_DESCRIPTOR_POOL_CREATE_HOST_ONLY_BIT_VALVEspecifies that this descriptor pool and the descriptor sets allocated from it reside entirely in host memory and cannot be bound. Descriptor sets allocated from this pool are partially exempt from the external synchronization requirement in vkUpdateDescriptorSetWithTemplateKHR and vkUpdateDescriptorSets. Descriptor sets and their descriptors can be updated concurrently in different threads, though the same descriptor must not be updated concurrently by two threads.
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.