Files
BT411/engine/MUNGA_L4
arcattackandClaude Opus 4.8 7b0b4f64ab Diag: add BT_SHOT backbuffer dump + correct/park the -net render glitch (task #53)
Scouted the "-net node render glitch". Two prior framings were wrong and are
corrected in the KB: it is NOT device contention (retracted earlier), and it is
NOT a from-load glitch -- the trigger is a RESPAWN (user correction). It's a
post-respawn render-rebuild fault on the MP path.

Could not reproduce in 9 automated 2-node loads + a forced death/respawn (all
clean). Debug uninit is a deterministic 0xCDCDCDCD, so the intermittency implies
a race -- and the task #52 respawn fixes (LoadMission re-entry, viewpoint relink,
death-latch) plausibly already closed it. Parked as WATCH; re-open if it recurs.

Tooling (general, off by default): BT_SHOT=<path> dumps a per-instance backbuffer
PNG from the world-render path (L4VIDEO.cpp) every 90 frames -- lets us capture a
specific node's frame without foregrounding the window. Used with
scratchpad/hunt53.sh (N-run divergence hunter) to verify a fix if the glitch
returns.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-10 15:48:54 -05:00
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