motion-census says in its own header that it cannot do this: "a wrong ramp that
moves every frame passes here." So having restored the motion, this checks the
shape.
Pre-registered from the disc. palogo_sqex_eff declares 0:0 -> 15:255 -> 30:212
-> 45:0, so three straight runs with breakpoints at 15 and 30, the middle slope
~1/5 the magnitude of the last, and the rise ~1.2x the last.
Measured from a FILM of a real boot, on the companion's top strip
(686x11+299+319) which no other element overlaps, so it is that element's own
alpha rather than a composite:
units 5.6-13.0 +0.00509 /unit rise
units 16-28 -0.00090 /unit gentle fall
units 31-43 -0.00423 /unit steep fall
unit 46.4 0.00000 gone
Breakpoints land where declared: the rise stops between 13.0 and 16.1, the
gentle fall steepens between 28.4 and 31.4.
ratio middle:last declared 0.203 measured 0.213 (within 5 %)
ratio rise:last declared 1.20 measured 1.20 (exact)
So the port interpolates piecewise-linearly across the declared segments, which
is what the Decoder independently measured the game doing -- 28 distinct alphas
over 28 consecutive presents, modal steps -3 and -14 against predicted -2.87 and
-14.13.
⚠️ RATIOS, NOT ABSOLUTES, and deliberately. The strip mean is an alpha scaled by
the sprite's own pixels; its absolute value carries the texture. A ratio between
segments divides that out, which is the only reason the shape is checkable from
a composite at all.
What this does NOT establish, stated rather than implied: that it LOOKS right --
three instruments have now agreed with a picture a human called wrong, and a
fourth agreeing does not change the standing of the fifth. Nor anything about
the developer splash's three pairs. Nor the absolute alpha.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018AHUQvXGyNcKonSEWsgWcX
2f9f21d7c1