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render3d: under a fog wall the volumetric air is marched only to it, SSGI stops where it is solid, and card casters that fill the wall stop rebuilding

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The volumetric pass marched 800 m in a fixed number of steps whatever the wall: it now stops at the
wall with steps in proportion (at least 8) - 0.57 -> 0.33 ms at 30 m by the pass timers. SSGI skipped
only past 900 m; it now also skips past 0.85 of a wall, where the fog is solid (u_ao_far). applyFog
samples the fog's colour only where its weight is above zero. A card layer whose casters inside the
wall are 80% or more of it (a kilometre's wall) casts from its static list and is not refiltered and
re-uploaded every 4 m of camera motion. Fog off: the frame unchanged (0 pixels over 8).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-29 17:00:27 +03:00
parent 5b3cfac48e
commit 329439cf61
32 changed files with 36 additions and 14 deletions
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17
packages/ludic.render3d/shaders/spv/manifest.txt
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@ -551,7 +551,7 @@ T 3e4b62f9 u_tershadow 8
T 3e4b62f9 u_tershadow_aux 9
T 3e4b62f9 u_ts_height 10
P 676965ab fullscreen.vert ssgi.frag
B 676965ab frag 1 984
B 676965ab frag 1 1000
U 676965ab frag u_cascade_vp 0 mat4 5 64
U 676965ab frag u_cascade_split 320 float 5 16
U 676965ab frag u_cascade_range 400 float 5 16
@ -588,13 +588,14 @@ U 676965ab frag u_time 816 float 1 0
U 676965ab frag u_fog_inscatter 820 float 1 0
U 676965ab frag u_fog_desat 824 float 1 0
U 676965ab frag u_fog_wall 828 float 1 0
U 676965ab frag u_inv_proj 832 mat4 1 0
U 676965ab frag u_proj 896 mat4 1 0
U 676965ab frag u_texel 960 vec2 1 0
U 676965ab frag u_radius 968 float 1 0
U 676965ab frag u_intensity 972 float 1 0
U 676965ab frag u_contact 976 float 1 0
U 676965ab frag u_frame 980 float 1 0
U 676965ab frag u_ao_far 832 float 1 0
U 676965ab frag u_inv_proj 848 mat4 1 0
U 676965ab frag u_proj 912 mat4 1 0
U 676965ab frag u_texel 976 vec2 1 0
U 676965ab frag u_radius 984 float 1 0
U 676965ab frag u_intensity 988 float 1 0
U 676965ab frag u_contact 992 float 1 0
U 676965ab frag u_frame 996 float 1 0
T 676965ab u_brdf 2
T 676965ab u_depth 3
T 676965ab u_irradiance 4