# VkClusterAccelerationStructureClusterFlagBitsNV(3) Manual Page

## Name

VkClusterAccelerationStructureClusterFlagBitsNV - Bitmask specifying cluster acceleration structure flags

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## C Specification

Bits which can be set in VkClusterAccelerationStructureBuildTriangleClusterInfoNV::`clusterFlags`, specifying flags for clusters in an acceleration structure, are:

    // Provided by VK_NV_cluster_acceleration_structure
    typedef enum VkClusterAccelerationStructureClusterFlagBitsNV {
        VK_CLUSTER_ACCELERATION_STRUCTURE_CLUSTER_ALLOW_DISABLE_OPACITY_MICROMAPS_NV = 0x00000001,
    } VkClusterAccelerationStructureClusterFlagBitsNV;

## Description

- `VK_CLUSTER_ACCELERATION_STRUCTURE_CLUSTER_ALLOW_DISABLE_OPACITY_MICROMAPS_NV` specifies that the specified cluster acceleration structure may be referenced in an instance with `VK_GEOMETRY_INSTANCE_DISABLE_OPACITY_MICROMAPS_BIT_EXT` set.

## See Also

VK_NV_cluster_acceleration_structure, VkClusterAccelerationStructureClusterFlagsNV

## 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