VkPartitionedAccelerationStructureOpTypeNV(3)

Name

VkPartitionedAccelerationStructureOpTypeNV - Enum providing the type of PTLAS operation to perform

C Specification

Values which can be set in VkPartitionedAccelerationStructureOpTypeNV are:

// Provided by VK_NV_partitioned_acceleration_structure
typedef enum VkPartitionedAccelerationStructureOpTypeNV {
    VK_PARTITIONED_ACCELERATION_STRUCTURE_OP_TYPE_WRITE_INSTANCE_NV = 0,
    VK_PARTITIONED_ACCELERATION_STRUCTURE_OP_TYPE_UPDATE_INSTANCE_NV = 1,
    VK_PARTITIONED_ACCELERATION_STRUCTURE_OP_TYPE_WRITE_PARTITION_TRANSLATION_NV = 2,
} VkPartitionedAccelerationStructureOpTypeNV;

Description

  • VK_PARTITIONED_ACCELERATION_STRUCTURE_OP_TYPE_WRITE_INSTANCE_NV is used to assign a transformed bottom level acceleration structure to an instance and partition. This is similar to VkAccelerationStructureInstanceKHR that defines the properties and transformations for a single instance in non-partitioned TLAS. Any partition that contains at least one of the affected instances will have their internal acceleration structure rebuilt.

  • VK_PARTITIONED_ACCELERATION_STRUCTURE_OP_TYPE_UPDATE_INSTANCE_NV specifies that an instance will be updated with a new bottom level acceleration structure.

  • VK_PARTITIONED_ACCELERATION_STRUCTURE_OP_TYPE_WRITE_PARTITION_TRANSLATION_NV specifies that a partition will be assigned a translation vector.

See Also

VK_NV_partitioned_acceleration_structure, VkBuildPartitionedAccelerationStructureIndirectCommandNV

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.