Runner

Offscreen QRhi host for the bench.

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

Detailed description

Renders each sweep frame into a tiny RGBA32F target and reads it back exactly: the harness wants numbers (t, field evaluations, miss class, Lipschitz violations), not an image, so nothing is quantised on the way out. Pictures are derived afterwards, for humans.