grom, 2026-11-05: *"its the maps motion that is laggy."* That is `SCALE_RATE`, and it is the
same constant he reported from the other side a day earlier — *"scroll is better but feels pretty
slippery, like scrolls past where I stop scrolling"* — which is what took it from 10 to 24. At 24
the half-life is 0.29 s, so at 60 fps a wheel notch is still closing 167 frames later: "it
overshoots" and "it lags behind" are two readings of one glide, and a third guess would be a third
guess.
`mapMotionSmoothing` is a percentage of a 0.30 s half-life, 0 is no ease at all, and the slider is
on the Options window's Interface page. The top of the range is the 0.29 s he called laggy,
because that is the slowest anyone could want; the default is a quarter of it. Measured over a
full rung (scale 1 -> 1.6) at 60 fps, frames to settle within 0.001: **0% = 1, 10% = 17, 20% = 34,
25% (shipped) = 42, 50% = 84, 100% = 167** — so the default is four times snappier than what he
just played, and still eased.
One rate drives both the pan and the zoom ease, read once a frame: the two are one gesture to a
player, and a zoom that settles while the pan is still drifting reads as the pan being broken. A
drag still writes the scroll directly and never eases, as before.
Verified in a live session with his addons: `mapMotionSmoothing=25`, one notch settles in 42
frames (0.70 s), map still FULLSCREEN, fade still 80. Options census 141 -> 142 on both counts.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SgstFWtn1RxEJ5kVrpgYwn
gromandClaude Opus 5
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