The existing occlusion is tuned as AMBIENT occlusion: a wide radius answering "how open is
the sky here". That is the right question, and it leaves every object in the frame
hovering - because what says a log is ON the ground rather than in front of it is a hard,
narrow darkening in the last few centimetres where the two meet, and at a metre and a half
of radius that darkening is spread so thin it is not there.
A second, tight pass: eight taps inside 40 cm, which at any normal distance is a handful of
pixels and stays in cache, with a much tighter range check than the ambient one so a wall
across the room does not darken the floor in front of it.
Small by frame area, because contact occlusion is - 1.8% of the frame, 7% of the region
around the things it grounds. GL 7.0 -> 7.1 s, VK 7.3 s over 400 frames.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Orkuncakilkaya
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