Lighter fog and volumetric fog, brighter key and ambient light, terrain tiles visible to 420 m (60 m fade), and a background colour equal to the fog colour times its energy so culled tiles never read as a dark band. The seabed shader culls back faces again now that the tiles are wound front-face up. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>