# VkClusterAccelerationStructureGeometryFlagBitsNV(3) Manual Page

## Name

VkClusterAccelerationStructureGeometryFlagBitsNV - Bitmask specifying geometry flags for cluster acceleration structure

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## C Specification

Bits which can be set in VkClusterAccelerationStructureGeometryIndexAndGeometryFlagsNV::`geometryFlags`, specifying geometry flags for cluster acceleration structure, are:

    // Provided by VK_NV_cluster_acceleration_structure
    typedef enum VkClusterAccelerationStructureGeometryFlagBitsNV {
        VK_CLUSTER_ACCELERATION_STRUCTURE_GEOMETRY_CULL_DISABLE_BIT_NV = 0x00000001,
        VK_CLUSTER_ACCELERATION_STRUCTURE_GEOMETRY_NO_DUPLICATE_ANYHIT_INVOCATION_BIT_NV = 0x00000002,
        VK_CLUSTER_ACCELERATION_STRUCTURE_GEOMETRY_OPAQUE_BIT_NV = 0x00000004,
    } VkClusterAccelerationStructureGeometryFlagBitsNV;

## Description

- `VK_CLUSTER_ACCELERATION_STRUCTURE_GEOMETRY_CULL_DISABLE_BIT_NV` disables face culling for this geometry.

- `VK_CLUSTER_ACCELERATION_STRUCTURE_GEOMETRY_NO_DUPLICATE_ANYHIT_INVOCATION_BIT_NV` specifies that the implementation must only call the any-hit shader a single time for each primitive in this geometry. If this bit is absent an implementation may invoke the any-hit shader more than once for this geometry.

- `VK_CLUSTER_ACCELERATION_STRUCTURE_GEOMETRY_OPAQUE_BIT_NV` specifies that this geometry does not invoke the any-hit shaders even if present in a hit group.

## See Also

VK_NV_cluster_acceleration_structure, VkClusterAccelerationStructureGeometryFlagsNV

## 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