# VkBuildAccelerationStructureModeKHR(3) Manual Page

## Name

VkBuildAccelerationStructureModeKHR - Enum specifying the type of build operation to perform

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## C Specification

The `VkBuildAccelerationStructureModeKHR` enumeration is defined as:

    // Provided by VK_KHR_acceleration_structure
    typedef enum VkBuildAccelerationStructureModeKHR {
        VK_BUILD_ACCELERATION_STRUCTURE_MODE_BUILD_KHR = 0,
        VK_BUILD_ACCELERATION_STRUCTURE_MODE_UPDATE_KHR = 1,
    } VkBuildAccelerationStructureModeKHR;

## Description

- `VK_BUILD_ACCELERATION_STRUCTURE_MODE_BUILD_KHR` specifies that the destination acceleration structure will be built using the specified geometries.

- `VK_BUILD_ACCELERATION_STRUCTURE_MODE_UPDATE_KHR` specifies that the destination acceleration structure will be built using data in a source acceleration structure, updated by the specified geometries.

## See Also

VK_KHR_acceleration_structure, VkAccelerationStructureBuildGeometryInfoKHR

## 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 2014-2024 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0