LoweringRunner

Evaluates one record on one lowering.

In the namespace raybench. Declared in src/libs/libraybench/raybench/Lowering.hpp.

Detailed description

Deliberately not part of Runner and not part of FieldProbe. Runner's numbers are pinned by a committed baseline (§RQ-IM-4) and FieldProbe's are pinned by the published Lipschitz audit; widening either one's uniform block to serve a third shader shape would risk perturbing exactly the measurements those gates exist to protect. The same trade FieldProbe's own class comment names, taken the same way.