Gate B human-walk: mask overlay washout + laggy knobs on iPad #55

New Issue

2026-09-07T21:17:34Z

grokbot_ty commented

2026-09-07 21:17:34 +00:00

Case

human-walk — Gate B mask UX on phone/tablet (Ty iPad @ https://192.168.1.202/)

Symptoms (Ty)

Mask preview looks horrible — nearly solid green overlay, slab not visible.
Sensitivity / Edge / Feather sliders take forever to adjust (multi-second lag).

Likely causes

applyMaskKnobs → removeSheetBackground on every range oninput (no debounce) = full CPU remask per tick on phone photos.
drawMaskOverlay paints opaque green; possible wrong mask polarity / Auto sheet failing so almost all pixels marked slab.

Product state required

Human can refine mask on a real slab photo: photo visible under translucent overlay; knobs respond quickly (debounce/throttle — cheap preview or rAF; full remask on input end / ~100–150ms debounce).

Dishonest proxies

vitest unit green; Select Photos BVT alone; homepage 200.

Branch

gate-b

## Case `human-walk` — Gate B mask UX on phone/tablet (Ty iPad @ `https://192.168.1.202/`) ## Symptoms (Ty) 1. Mask preview looks horrible — nearly solid green overlay, slab not visible. 2. Sensitivity / Edge / Feather sliders take forever to adjust (multi-second lag). ## Likely causes - `applyMaskKnobs` → `removeSheetBackground` on every range `oninput` (no debounce) = full CPU remask per tick on phone photos. - `drawMaskOverlay` paints opaque green; possible wrong mask polarity / Auto sheet failing so almost all pixels marked slab. ## Product state required Human can refine mask on a **real slab photo**: photo visible under **translucent** overlay; knobs respond quickly (debounce/throttle — cheap preview or rAF; full remask on input end / ~100–150ms debounce). ## Dishonest proxies vitest unit green; Select Photos BVT alone; homepage 200. ## Branch `gate-b`

grokbot_ty referenced this issue from a commit

2026-09-07 21:26:57 +00:00

gate-b: fix mask overlay opacity, auto-sheet fallback, and knob debounce

grokbot_ty referenced this issue from a commit

2026-09-07 21:32:38 +00:00

gate-b: add mask UX Playwright tests — overlay visual + knob timing

grokbot_ty referenced this issue from a commit

2026-09-07 21:33:07 +00:00

results(gate-b): mask UX fix evidence — translucent overlay, 38ms knob response

grokbot_ty referenced this issue from a commit

2026-09-07 21:33:42 +00:00

results(gate-b): note issue #55 needs manual update

grokbot_ty commented

2026-09-07 21:35:06 +00:00

Tip live

Tip: 5a35dbf on origin/gate-b
Redeployed ubuDual5060 — hard-refresh https://192.168.1.202/
Fixes: translucent overlay, auto-sheet fallback, 150ms knob debounce
Not Gate green.

## Tip live - Tip: `5a35dbf` on origin/gate-b - Redeployed ubuDual5060 — hard-refresh https://192.168.1.202/ - Fixes: translucent overlay, auto-sheet fallback, 150ms knob debounce - Not Gate green.

grokbot_ty commented

2026-09-07 21:58:58 +00:00

LIVE verify (product bar)

Tip: 247b6b9 on origin/gate-b — Playwright against https://100.64.0.9/

Check	Result
Overlay translucent (avgAlpha ~16, max 80)	pass
Knobs fast (sensitivity ~42–71ms, edge ~18–24ms)	pass
Auto/green sheet not entire-frame slab (fraction ~0.20)	pass

Evidence: test-results/gate-b-2026-09-07-live-verify/. LAN 192.168.1.202 unreachable from runner (Tailscale path verified). Not Gate green.

## LIVE verify (product bar) Tip: `247b6b9` on `origin/gate-b` — Playwright against **https://100.64.0.9/** | Check | Result | |---|---| | Overlay translucent (avgAlpha ~16, max 80) | pass | | Knobs fast (sensitivity ~42–71ms, edge ~18–24ms) | pass | | Auto/green sheet not entire-frame slab (fraction ~0.20) | pass | Evidence: `test-results/gate-b-2026-09-07-live-verify/`. LAN `192.168.1.202` unreachable from runner (Tailscale path verified). Not Gate green.

grokbot_ty commented

2026-09-08 00:28:03 +00:00

Product correction (Ty P0 UAT)

Ty NEVER authorized a green overlay on the slab.

Expected mask preview

Show the actual slab pixels in the foreground
Background removed
Transparent/removed area = grey/white checkerboard (or equivalent)
NOT a green tint/wash painted over the slab

Current wrong behavior

drawMaskOverlay paints green over the mask — dishonest proxy for “mask visible.”

Product state required

Ty sees real wood on checkerboard while knobs refine the mask; debounce stays.

Dishonest proxies

Translucent-green “fix”; live-mask tests that only check avgAlpha of green; homepage 200.

## Product correction (Ty P0 UAT) Ty NEVER authorized a green overlay on the slab. ### Expected mask preview - Show the **actual slab pixels** in the foreground - Background removed - Transparent/removed area = grey/white **checkerboard** (or equivalent) - NOT a green tint/wash painted over the slab ### Current wrong behavior `drawMaskOverlay` paints green over the mask — dishonest proxy for “mask visible.” ### Product state required Ty sees real wood on checkerboard while knobs refine the mask; debounce stays. ### Dishonest proxies Translucent-green “fix”; live-mask tests that only check avgAlpha of green; homepage 200.

grokbot_ty referenced this issue from a commit

2026-09-08 00:30:29 +00:00

fix(gate-b): drawMaskOverlay — cutout on checkerboard, no green overlay (#55)

grokbot_ty referenced this issue from a commit

2026-09-08 00:35:13 +00:00

test(gate-b): update Playwright assertions for cutout-on-checkerboard (#55)

grokbot_ty referenced this issue

2026-09-21 17:01:22 +00:00

fix(review): #88 thickness band derived; #90 MultiSelect names + commit #97

grokbot_ty closed this issue

2026-09-21 17:18:44 +00:00

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