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feat(hero): lifecycle, perf gating, camera drift, poster capture #31

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patman commented 2026-06-12 19:46:14 +00:00
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PR 6/7 in the hero-toolpaths stack (prev: hero-renderer, next: hero-readme). mountHero wires sim to renderer: 30fps RAF time gate over a fixed-timestep sim (a fixed seed replays a run frame-for-frame — the poster workflow foundation), IntersectionObserver pauses off-screen, reduced-motion and GL-less browsers degrade to the poster without throwing, DPR capped at 2 with per-frame DPR-change detection, context loss fades back to the poster and recovers, slow exponential zoom-out (capped at 16 doublings for float32 headroom) with scale-invariant feed/field/ribbon, glacial hue drift from KGROO blue. Hot loop performs no allocations. Review focus: lifecycle edge cases — destroy before first IntersectionObserver callback, context loss/restore orderings, the zoom cap rationale.

PR 6/7 in the hero-toolpaths stack (prev: hero-renderer, next: hero-readme). mountHero wires sim to renderer: 30fps RAF time gate over a fixed-timestep sim (a fixed seed replays a run frame-for-frame — the poster workflow foundation), IntersectionObserver pauses off-screen, reduced-motion and GL-less browsers degrade to the poster without throwing, DPR capped at 2 with per-frame DPR-change detection, context loss fades back to the poster and recovers, slow exponential zoom-out (capped at 16 doublings for float32 headroom) with scale-invariant feed/field/ribbon, glacial hue drift from KGROO blue. Hot loop performs no allocations. Review focus: lifecycle edge cases — destroy before first IntersectionObserver callback, context loss/restore orderings, the zoom cap rationale.
feat(hero): lifecycle, perf gating, camera drift, poster capture
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40a89d8f3a 
mountHero wires sim to renderer under a 30fps RAF time gate with a
fixed-timestep sim — a fixed seed replays a run frame-for-frame, which
is what the documented poster-capture workflow relies on. Reduced motion
returns an inert handle without touching WebGL; IntersectionObserver
stops the loop off-screen; DPR is capped at 2; context loss falls back
to the poster and recovers. Slow exponential zoom-out with scale-
invariant feed/field/ribbon, glacial hue drift from KGROO blue. Full
README: integration snippet, capture steps, tuning knobs.
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2026-06-12 21:12:33 +00:00 Compare
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