FirstVertexHUAWEI(3)

# FirstVertexHUAWEI(3) Manual Page

## Name

FirstVertexHUAWEI - cluster culling shader output variable

## Description

`FirstVertexHUAWEI`

  The `FirstVertexHUAWEI` decoration can be used to decorate a cluster culling shader output variable,this non-indexed mode specific variable will contain an integer value that specifies the index of the first vertex in a cluster to draw.

Valid Usage

- VUID-FirstVertexHUAWEI-FirstVertexHUAWEI-07803
  The `FirstVertexHUAWEI` decoration must be used only within the `FirstVertexHUAWEI` `Execution` `Model`

- VUID-FirstVertexHUAWEI-FirstVertexHUAWEI-07804
  The variable decorated with `FirstVertexHUAWEI` 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 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0