Orkuncakilkaya
b12228c662
Everything before this made the air a COLOUR APPLIED TO A SURFACE. Nothing put light in the space between surfaces, so the basin had no shafts, no pooled mist and no rays off a ridge at any hour, whatever was done to the fog. A half-resolution march from the camera to the depth buffer, asking the same shadow the rest of the frame asks - the cascades, the baked height-field shadow and the cloud mask - so a shaft is cast by the actual trees and the actual ridge and a passing cloud dims its own rays. Henyey-Greenstein scattering, because real air throws light forward. Density and a separate ground-hugging mist layer ride the sun's elevation, so mist forms in the cold at either end of the day and burns off by mid-morning. Composited with the bloom pyramid's own tent upsample under ONE/ONE - what was wanted and already there - and before bloom, so a shaft blooms. Into post_hdr, not post_scene: post_scene is what the water refracts and shafts added there would sit under the lake. The tuning that mattered was the sky term, which is added at every step: at 0.06 it accumulated into a flat grey wash lifting lit and shadowed air equally, which is the contrast a shaft is made of, and the valley came out one pale sheet. At 0.012 the sun dominates and there is light rather than fog. I cut the density and mist three times before the frame looked like air instead of paint. R3D_NOVOL=1 for an A/B; Off in Settings skips the pass whole. 400 frames at 07:00: GL 7.1 -> 7.3 s, VK 7.2 -> 7.4 s. Backends agree to 0.08/255. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
1.6 KiB
1.6 KiB