Description

LocalInvocationIndex

Decorating a variable with the LocalInvocationIndex built-in decoration will make that variable contain a one-dimensional representation of LocalInvocationId. This is computed as:

LocalInvocationIndex =
    LocalInvocationId.z * WorkgroupSize.x * WorkgroupSize.y +
    LocalInvocationId.y * WorkgroupSize.x +
    LocalInvocationId.x;
Valid Usage

  • VUID-LocalInvocationIndex-LocalInvocationIndex-04284
    The LocalInvocationIndex decoration must be used only within the GLCompute, MeshEXT, TaskEXT, MeshNV, or TaskNV Execution Model

  • VUID-LocalInvocationIndex-LocalInvocationIndex-04285
    The variable decorated with LocalInvocationIndex must be declared using the Input Storage Class

  • VUID-LocalInvocationIndex-LocalInvocationIndex-04286
    The variable decorated with LocalInvocationIndex 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 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0