Sims 4:0x01661233

ObjectModel - MODL
TypeID:	0x01661233
Game Version:	The Sims 4

Overview

This is a Sims 4:RCOL chunk. The .model files that it is found in are essentially object mesh files, with this chunk included. A few meshes have two MODL chunks, purpose unknown.

DWORD		// 'MODL'
DWORD version	// 256 or 258 seen
DWORD count	// of MLOD references, see below
FLOAT[3]	// Min X/Y/Z for entire object
FLOAT[3]	// Max X/Y/Z for entire object

--if 'version' >=258
	// these extra boundingboxes have been seen on City Hall and School community objects (pommes)
	DWORD NumExtraBoundingBoxes
	--repeat NumExtraBoundingBoxes
		FLOAT[3] Min X/Y/Z
		FLOAT[3] Max X/Y/Z

	DWORD FadeType
	FLOAT CustomFadeDistance

//MLOD References:
--repeat 'count':
	DWORD LODModel // RCOL Reference of a MLOD
	DWORD LODInfoFlags
	DWORD LOD ID// 
	DWORD MinZValue		// defaults to min float32
	DWORD MaxZValue		// defaults to max float32

LOD ID

Id	Description
0x00000000	HighDetail
0x00000001	MediumDetail
0x00000002	LowDetail
0x00010000	HighDetailShadow
0x00010001	MediumDetailShadow
0x00010002	LowDetailShadow

LOD Info Flags

Flag	Type	Description
0x00000001	Portal
0x00000002	Door

Based on contributions from karybdis and atavera