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

LOD Info Flags

Based on contributions from karybdis and atavera