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wreck smoke dies WITH the wreck; the audio/effect clock is calibrated to the byte-proven 28

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USER REPORT: "when you destroy a mech, it continues to smoke for a very long
time after the mech disappears... up to 30secs to a minute."

MEASURED (new [pfx] timed census with per-def particle attribution): the
death plume (psfx 1 DDTHSMK) was re-armed on a 10s cadence as a WORLD effect
(ownerTag=0) -- so neither the burial transition nor the respawn cleanup
(StopAllEntityEffects) could touch it.  The last-armed window kept emitting
over the empty spot for up to 10s after the hulk vanished, plus 6+-2s authored
particle lives, and back-to-back windows stretched the visible tail to the
reported range.  The re-arm itself is a marked PORT ADDITION [T3]; the binary
fired DDTHSMK once -- its 10s window + particle lives ended right around the
~17s hulk sink.  The authored design: the smoke dies WITH the burial.

FIX: the plume is spawned ATTACHED (BTStartPfxAttached, tagged to the dying
entity -- it also rides the sinking hulk now), and the burial transition calls
BTStopEntityPfx alongside the respawn cleanup that already did.  Verified over
a 175s run containing FOUR wreck events (the enemy kill + three player bay-
fire deaths): every plume's emission ends at its wreck's burial or respawn,
particles fade within ~8-11s, no orphan emitters remain.

THE COUPLING (user relay of Oracle: "prolonged smoke and explosion INCLUDING
SOUND... same lever?") -- CONFIRMED as a family: the binary's audio layer
times in FRAME COUNTS converted by the engine frame-rate global:
    AudioTime::Seconds_To_Frames == fmul [0x52140c]=28.0; fadd 0.5; round
    (@0x42c611, @0x42dd86 -- the 0x42xxxx cluster of the ~90 global consumers)
Our engine's DefaultRendererRate said 30: every audio duration, sequence
delay and compression window ran ~7% fast.  Calibrated to 28 [T1].  NOT yet
explained by this: a truly SUSTAINED/looping explosion sound (7% is not
"prolonged") -- the effect stop-path trace stays open on #114/#51.

Tooling: BTPfxParticle carries defIndex; [pfx] census (BT_PFX_LOG, 2s) prints
emitters + particles PER EFFECT SLOT with a timestamp; wrecksmoke.sh.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joe DiPrima
2026-08-02 11:25:49 -05:00
co-authored by Claude Opus 5
parent 2df1369168
commit 6dbeb3d266
5 changed files with 88 additions and 4 deletions
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engine/MUNGA/RENDERER.cpp
+6 -1
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@@ -13,7 +13,12 @@
//############################ Renderer #################################
//#############################################################################
const RendererRate DefaultRendererRate = 30.0f;
// 2026-08-02 (#96 clock trace): the DOS binary's audio/effect frame clock runs
// at the ENGINE FRAME RATE GLOBAL DAT_0052140c = 28.0f (0x401ace), not 30 --
// AudioTime::Seconds_To_Frames in the image is `fmul [0x52140c]; fadd 0.5`
// (e.g. @0x42c611), and every authored frame-count duration assumes 28.
// 30 here ran ALL audio timing ~7% fast. [T1]
const RendererRate DefaultRendererRate = 28.0f;
const RendererComplexity MaxRendererComplexity = 3.0f;
const RendererComplexity MinRendererComplexity = 0.0f;
const RendererFrameBudget DefaultRendererFrameBudget = 0.14f; //0.12f; // 0.16f;