Last iteration I hypothesised that the game might not draw pteff03/pteff03a on a
settled title, which would have explained three things at once: the flat --at
plateau, the 0.32 between-session in-box term, and part of the ~40 residual. The
oracle says no.
A draw capture of the settled EN title -- gated on the plate pulse, fired at
325.3 s, with exactly ONE emulator verified by count -- shows two quads taller
than the 720 px screen present in every one of 132 frames and sweeping in
OPPOSITE directions:
strip A h=1134 ROT x -109 -> +518 step +6..7 px/frame
strip B h=1303 ROT x +486 -> -154 step -6..7 px/frame
The rate matches the disc: the declared x track is -639..1521 = 2160 px over a
600-unit cycle = 3.6 px/unit, and at 2 units per rendered frame that predicts 7.2
px/frame against 6-7 measured. Both quads are flagged ROT, which is why their
axis-aligned bounding boxes are ~885 and ~1300 px wide where the declared quad is
400 -- consistent with rotation living in leaf records and with `screen render`
being axis-aligned only.
So the leaves ARE drawn and DO free-run on a settled title. My hypothesis is
refuted and sylpheed-port's reading of their `title` curve -- sweep present in a
title capture -- is confirmed by the oracle rather than by a render.
What this does NOT settle is the tension that prompted it. Both strips cross the
adjudication box in x and cover it in y, so two JP captures at different phases
should differ there, and they differ by 0.32. Two candidates, neither tested: the
two JP shutters happened to fall at similar phases (a ~1 % coincidence for a
600-unit cycle), or build 7's denser logo stack -- the katakana plus the
crystalline burst that jp-title-at-rest.txt records as absent from the English
title -- occludes the sweep inside that box. A draw capture of the JP title
distinguishes them.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Wuu56cE8vJGTBtn1ppsk8v
d80519e0c3