WaveGetNumWaves

Description

Returns the number of waves (subgroups) in the current workgroup. Equivalent to GLSL gl_NumSubgroups.

Signature

uint WaveGetNumWaves();

Availability and Requirements

Defined for the following targets:

hlsl

Available in all stages.

glsl

Available in all stages.

cuda

Available in all stages.

metal

Available in all stages.

wgsl

Available in all stages.

spirv

Available in all stages.

Requires capability: spvGroupNonUniformBallot.