Classic Wave, Silk Ribbon, Kaleido Tunnel and Slow Orb all declared the
`style` trait and honoured it with `col += sigGrain(uv)` and nothing else. A
declared trait is a contract — the disqualification rule in Personality.js is
the only thing keeping off-design scenes out of a track — so honouring it
with dirt meant these four could not take the `texture: 0` opt-out the grain
work introduced. Phase 9 measured their style response at exactly 0. They sat
at texture: 0.35 as a stopgap, which kept speckle on the library's cleanest
scenes purely to keep a gate green.
Each already had the knob; it just was not wired to the track:
- Classic Wave contrasts its wave through a bare smoothstep(0.2, 0.8). The
transition width now comes from u_sigSoft and u_sigLine, centred on 0.5 so
changing the hand does not change the exposure. Crest concentration is
driven separately by u_sigLine, because a track is free to sample the
scene's own u_softness at zero and the art direction must still show.
- Silk Ribbon's strand width is u_sigLine and its falloff exponent u_sigSoft:
a sharp track gets a filament with a defined edge, a soft one a haze.
- Kaleido Tunnel drew its grid against a bare 0.42 — a line weight with no
name. It is now a weight and a feather, both from the track.
- Slow Orb's body edge multiplies the scene's softness by the video's, and
gains a sigEdge rim so a sharp-handed track gets a defined limb.
All four are now texture: 0. Style response measured against a maximally
soft-handed versus maximally sharp-handed personality: Classic Wave 111,
Silk Ribbon 216, Kaleido Tunnel 206, Slow Orb 102, out of 255 — previously 0.
104/104 checks pass including the slow set. See SIDE-QUESTS.md §1.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
