SubgroupLeMask(3)

Name

SubgroupLeMask - Mask of shader invocations in a subgroup with the same or lower subgroup local invocation ID

Description

SubgroupLeMask

Decorating a variable with the SubgroupLeMask builtin decoration will make that variable contain the subgroup mask of the current subgroup invocation. The bits corresponding to the invocations less than or equal to SubgroupLocalInvocationId are set in the variable decorated with SubgroupLeMask. All other bits are set to zero.

SubgroupLeMaskKHR is an alias of SubgroupLeMask.

Valid Usage

  • VUID-SubgroupLeMask-SubgroupLeMask-04376
    The variable decorated with SubgroupLeMask must be declared using the Input Storage Class

  • VUID-SubgroupLeMask-SubgroupLeMask-04377
    The variable decorated with SubgroupLeMask must be declared as a four-component vector of 32-bit integer values

See Also

No cross-references are available

Document Notes

For more information, see the Vulkan Specification (NOTE: cannot determine Specification page containing this refpage).

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.