# ClusterIDHUAWEI(3) Manual Page

## Name

ClusterIDHUAWEI - cluster culling shader output variable

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## Description

`ClusterIDHUAWEI`

  The `ClusterIDHUAWEI` decoration can be used to decorate a cluster culling shader output variable,this variable will contain an integer value that specifies the id of cluster being rendered by this drawing command. When Cluster Culling Shader enable, `ClusterIDHUAWEI` will replace gl_DrawID pass to vertex shader for cluster-related information fetching.

Valid Usage

- VUID-ClusterIDHUAWEI-ClusterIDHUAWEI-07797
  The `ClusterIDHUAWEI` decoration must be used only within the `ClusterCullingHUAWEI` `Execution` `Model`

- VUID-ClusterIDHUAWEI-ClusterIDHUAWEI-07798
  The variable decorated with `ClusterIDHUAWEI` must be declared as a scalar 32-bit integer value

## See Also

No cross-references are available

## 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