SubgroupGtMask(3)

Name

SubgroupGtMask - Mask of shader invocations in a subgroup with a higher subgroup local invocation ID

Description

SubgroupGtMask

Decorating a variable with the SubgroupGtMask builtin decoration will make that variable contain the subgroup mask of the current subgroup invocation. The bits corresponding to the invocations greater than SubgroupLocalInvocationId through SubgroupSize-1 are set in the variable decorated with SubgroupGtMask. All other bits are set to zero.

SubgroupGtMaskKHR is an alias of SubgroupGtMask.

Valid Usage

  • VUID-SubgroupGtMask-SubgroupGtMask-04374
    The variable decorated with SubgroupGtMask must be declared using the Input Storage Class

  • VUID-SubgroupGtMask-SubgroupGtMask-04375
    The variable decorated with SubgroupGtMask 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.