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Update RESEARCH.md with corrected SceneObject->M2 pointer chain

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MarcelineVQ
2026-03-12 11:35:12 -07:00
parent f46e5d07f4
commit 484a988c77
1 changed files with 12 additions and 3 deletions
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src/transform44/RESEARCH.md
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@@ -118,14 +118,23 @@ Marks transform as up to date.
| Offset | Field | Type | Notes |
|--------|-------|------|-------|
| +0x10 | model_data_ptr | void* | NULL check for early bail |
| +0x2C | ptr_at_2c | void* | -> model header? |
| +0x2C | ptr_at_2c | void* | -> context struct (NOT M2 header directly!) |
| +0x30 | animation_context_ptr | void* | +0x0C=timestamp, +0x10=sync_value |
| +0x40 | transform_sync_value | int | Compared with anim_ctx+0x10 |
| +0x80 | unknown_0x80 | uint | Bone runtime state array base |
| +0x1CC | field_0x1cc | int* | Emitter/particle data? |
| +0x1CC | field_0x1cc | int* | Emitter/particle context |
### Context Struct (at *(this+0x2C))
| Offset | Field | Notes |
|--------|-------|-------|
| +0x14 | global sequence count | Loop bound for GS processing |
| +0x18 | global sequence durations array | |
| +0x130 | M2 model header pointer | **This is the actual model** |
**Pointer chain to bone count**: `*(*(*(this+0x2C) + 0x130) + 0x34)`
### Bone Definition (0x6c = 108 bytes per bone in model)
From `model+0x38` array. Contains:
From `model+0x38` array (where model = `*(*(this+0x2C) + 0x130)`). Contains:
- Flags, parent bone index, billboard type
- Keyframe data pointers for translation, rotation, scale
- Pivot point (Vec3)