Dusk/WeirdUtils
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89e49cedf213bdae0e7b2da6ed054bac464e4a47
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3 Commits
Author SHA1 Message Date
MarcelineVQ 89e49cedf2 bone_sse_ref: replace reimplemented game funcs with actual calls, fix runtime constants 
- Replace all reimplemented game functions with actual game calls:
  vec3_sqmag (0x4549F0), __ftol (0x40A2B0), getIndexOffset (0x71AFF0),
  setShortValue (0x71B010) — matching assembly exactly
- Fix 3 wrong hardcoded constants that differ at runtime from Ghidra static values:
  SHORT_TO_FLOAT: 0x38000000→0x38000100 (1/32767 not 1/32768)
  BILLBOARD_EPSILON: 0x3727c5ac→0x34800000
  HERMITE_5: 5.0→6.0
  All now read from game memory at runtime
- Fix timestamp delta guard (this+0x4C): was guarding on stored value,
  assembly guards on anim_ctx pointer — prevents first-frame initialization
- Change REF calling convention to thiscall matching original
- Add comprehensive memory comparison diagnostic (original vs REF)
- Disable interpKfDetour hook (was pure passthrough)
 2026-03-15 13:20:05 -07:00
MarcelineVQ f97d27f614 bone_sse: add ribbon visibility gate, fix Track A type, add post-processing 
Ribbon emitter section (0x7163FC-0x716AA9) — assembly-verified:
- Add visibility byte animation (entry+0xB8 → output+0xE0/0xEC) with crossfade
- Add visibility gate: skip tracks unless (output+0x100 && output+0xEC) or frame 0
- Fix Track A from interpVec3Track to interpFloatTrack (assembly uses *4 not *12)
- Add post-processing 1: output+0x134 = TrackB_Vec3 * (TrackA_float * render_scale_z)
- Add post-processing 2: output+0x140 = TrackD_Vec3 * (TrackC_float * render_scale_z)

Applied to both bone_sse.zig and bone_sse_reference.zig.
 2026-03-15 03:01:39 -07:00
MarcelineVQ da7155a404 bone_sse: fix ribbon emitter offsets (#18-19), teardown guard 
Bug #18: Ribbon emitter track offsets completely wrong. Position was
entry+0x24, actual tracks from assembly (0x716402-0x716AA9):
  Track 1 (Vec3): gate=+0x1C, AnimData=+0x10, output=+0x00
  Track 2 (Vec3): gate=+0x38, AnimData=+0x2C, output=+0x30
  Track 3 (float): gate=+0x70, AnimData=+0x64, output=+0x80
  Track 4 (Vec3): gate=+0x54, AnimData=+0x48, output=+0x50

Bug #19: Track 4 output was +0xA0 (should be +0x50), and tracks 2/4
were float (should be Vec3). Wrong output offsets corrupted stack data,
causing bone_rt pointer to contain float bit patterns.

Teardown: hook World_HandleLogoutCleanup (0x491180) instead of
CleanupWorldAndEntities (0x66FC40). Fires at START of logout sequence
before any Lua callbacks trigger model processing on freed data.
Prologue: PUSH ESI/EDI, epilogue: POP EDI/ESI, JMP (tail call).

Also: added bone_sse_reference.zig as separate compilation unit for
A/B testing the proven-working version independently.
 2026-03-15 02:22:18 -07:00