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docs(physics): record cutover slice C3b completion

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C3b landed at 0934a121 with dual review PASS. The plan records the
remote-entry mechanism and its verified retail anchors; the float-gates
doc gains the port note pinning the NaN dispositions (friction's
sanctioned skip; elasticity and translucency routed exactly as the
binary; ACE's elasticity NaN divergence recorded). Every dormant C3
prerequisite is now complete — C3c, the host flip with the connected
gates, is the sole remaining piece of C3.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Erik 2026-08-02 10:21:05 +02:00
parent 0934a12111
commit 78f1eb1896
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docs/research/2026-08-02-set-description-float-gates.md
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@ -219,3 +219,13 @@ false"), which is a documented quirk of this exact MSVC x87 codegen
pattern and not something the retail struct's `float` fields would
ever hit in practice (friction/translucency are authored data, never
NaN).
## Port note (C3b, `RuntimeRemoteBodyDescription.cs`)
acdream's friction port uses `f >= 0.0f && f <= 1.0f`, which deliberately
SKIPS NaN rather than reproducing the unordered-goes-to-apply codegen quirk
tabled above — the sanctioned modern-boundary deviation this doc
pre-declared. Elasticity's setter port (`!(e >= 0f)` first arm) and
translucency's `!= 0.0f` gate both route NaN exactly as the binary does
(0f and apply respectively); ACE's `set_elasticity` sends NaN to 0.1f and
is divergent from the binary on that edge.