WaveReadLaneFirst function
Returns the value of the expression for the active lane of the current wave with the smallest index.
Syntax
<type> WaveReadLaneFirst(
<type> expr
);
Parameters
-
expr
-
The expression to evaluate.
Return value
The resulting value is uniform across the wave.
Remarks
This function is supported from shader model 6.0 in all shader stages.
See also
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