VkDescriptorMappingSourceEXT(3)
C Specification
The possible mapping sources for a shader binding are:
// Provided by VK_EXT_descriptor_heap
typedef enum VkDescriptorMappingSourceEXT {
VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_CONSTANT_OFFSET_EXT = 0,
VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_PUSH_INDEX_EXT = 1,
VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_INDIRECT_INDEX_EXT = 2,
VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_INDIRECT_INDEX_ARRAY_EXT = 3,
VK_DESCRIPTOR_MAPPING_SOURCE_RESOURCE_HEAP_DATA_EXT = 4,
VK_DESCRIPTOR_MAPPING_SOURCE_PUSH_DATA_EXT = 5,
VK_DESCRIPTOR_MAPPING_SOURCE_PUSH_ADDRESS_EXT = 6,
VK_DESCRIPTOR_MAPPING_SOURCE_INDIRECT_ADDRESS_EXT = 7,
// Provided by VK_EXT_descriptor_heap with VK_KHR_ray_tracing_pipeline or VK_NV_ray_tracing
VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_SHADER_RECORD_INDEX_EXT = 8,
// Provided by VK_EXT_descriptor_heap with VK_KHR_ray_tracing_pipeline or VK_NV_ray_tracing
VK_DESCRIPTOR_MAPPING_SOURCE_SHADER_RECORD_DATA_EXT = 9,
// Provided by VK_EXT_descriptor_heap with VK_KHR_ray_tracing_pipeline or VK_NV_ray_tracing
VK_DESCRIPTOR_MAPPING_SOURCE_SHADER_RECORD_ADDRESS_EXT = 10,
} VkDescriptorMappingSourceEXT;Description
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VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_CONSTANT_OFFSET_EXT specifies that the resource will be backed by a descriptor from the heap at a constant index.
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VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_PUSH_INDEX_EXT specifies that the resource will be backed by a descriptor from the heap at an index sourced from push data, added to a constant index.
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VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_INDIRECT_INDEX_EXT specifies that the resource will be backed by a descriptor from the heap at an index sourced from an address in push data, added to a constant index. If the mapping is an array, the array will be mapped to a base offset in indirect memory, and subsequent elements are mapped as offsets to that base.
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VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_INDIRECT_INDEX_ARRAY_EXT specifies that the resource will be backed by a descriptor from the heap at an index sourced from an address in push data, added to a constant index. If the mapping is an array, each array element will be mapped to a separate index in indirect memory.
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VK_DESCRIPTOR_MAPPING_SOURCE_RESOURCE_HEAP_DATA_EXT specifies that the resource will be backed by heap data directly.
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VK_DESCRIPTOR_MAPPING_SOURCE_PUSH_DATA_EXT specifies that the resource will be backed by push data directly.
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VK_DESCRIPTOR_MAPPING_SOURCE_PUSH_ADDRESS_EXT specifies that the resource will be backed by an address in push data.
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VK_DESCRIPTOR_MAPPING_SOURCE_INDIRECT_ADDRESS_EXT specifies that the resource will be backed by an address sourced via another address in push data.
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VK_DESCRIPTOR_MAPPING_SOURCE_HEAP_WITH_SHADER_RECORD_INDEX_EXT specifies that the resource will be backed by a descriptor from the heap at an index sourced from shader record data, added to a constant index.
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VK_DESCRIPTOR_MAPPING_SOURCE_SHADER_RECORD_DATA_EXT specifies that the resource will be backed by shader record data directly.
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VK_DESCRIPTOR_MAPPING_SOURCE_SHADER_RECORD_ADDRESS_EXT specifies that the resource will be backed by an address in shader record data.
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.