SPIR-V Built-In
WarpIDNV
Warp ID within an SM of a shader invocation
WarpIDNV
Decorating a variable with the WarpIDNV built-in decoration will make
that variable contain the ID of the warp on a SM on which the current shader
invocation is running.
This variable is in the range [0, WarpsPerSMNV-1].
Valid Usage
VUID-WarpIDNV-WarpIDNV-04420
The variable decorated with WarpIDNV must be declared using the
Input Storage Class
VUID-WarpIDNV-WarpIDNV-04421
The variable decorated with WarpIDNV must be declared as a scalar
32-bit integer value