RCOL - Kuree/Sims4Tools GitHub Wiki

##Format

 DWORD - Version
 DWORD - Count of Internal Public Chunks
 DWORD - Index3 (unused)
 DWORD - ExternalCount
 DWORD - InternalCount
 
 //Internal Chunks: These are the TGIs that identify each chunk
 -Repeat InternalCount Times
 QWORD - I64
 DWORD - TID
 DWORD - GID
 
 //External Resources: These are TGIs of referenced items (e.g. DDS Image)
 -Repeat ExternalCount times 
 QWORD - I64
 DWORD - TID
 DWORD - GID
 
 -Repeat InternalCount times
 DWORD - Position of the Chunk (absolute)
 DWORD - Size of the Chunk

##References

Flag	Type	Table	Comments
0x0xxxxxxx	Public	Internal Chunks
0x1xxxxxxx	Private	Internal Chunks	Add on the "Count of Internal Public Chunks" to get the actual index
0x2xxxxxxx	External		Appears to be unused
0x3xxxxxxx	Delayed	External Resources
Block references are 1 based (0 is reserved for null references), with a flag for the type of reference.

##Chunks The Type ID will also be the first chunk after the header(with the exception GEOM).

##Resource Types

Type ID	Name	Description
0x015A1849	GEOM	Body Geometry
0x01661233	MODL	Object Geometry
0x01D0E75D	MATD	Material Definition
0x01D10F34	MLOD	Object Geometry LOD
0x02019972	MTST	Material Sets
0x033260E3	TkMk	Track Mask
0x0355E0A6	BOND	Slot Adjusts
0x03B4C61D	LITE	Lighting Data
0x63A33EA7	ANIM	Animated Texture
0x736884F1	VPXY	Model Links
0xD3044521	RSLT	Slot Definition
0xD382BF57	FTPT	Model Footprint
Resource Types are named by their first chunk.

##Model Chunks

Type ID	Name	Description
0x01661233	MODL	Object Geometry
0x01D0E6FB	VBUF	Vertex Buffer
0x01D0E6FB	VBUF	Vertex Buffer(Used in shadow meshes, no associated VRTF)
0x00000000		Vertex Buffer SwizzleInfo
0x01D0E70F	IBUF	Index Buffer
0x01D0E70F	IBUF	Index Buffer(Used in shadow meshes)
0x01D0E723	VRTF	Vertex Format
[[0x01D0E75D	0x01D0E75D]]	MATD
[[0x01D0E76B	0x01D0E76B]]	SKIN
[[0x01D10F34	0x01D10F34]]	MLOD
0x02019972	MTST	Material Sets
Possible chunks embedded in MODL and MLOD resources.