Sims 3:RCOL

Overview

Format used by various resources in the Scenegraph.

Format

DWORD - Version
DWORD - DataType (changes between filetypes)
DWORD - Index3 (unused)
DWORD - Index1
DWORD - Index2

//Internal Chunks: These are the TGIs that identify each chunk
-Repeat Index2 Count Times
QWORD - I64
DWORD - TID
DWORD - GID

//External Resources: These are TGIs of referenced items (e.g. DDS Image)
-Repeat Index1 Count times 
QWORD - I64
DWORD - TID
DWORD - GID

-Repeat Index2 Count times
DWORD - Position of the Chunk (absolute)
DWORD - Size of the Chunk

References

Block references are 1 based(0 reserved for a null reference), with a flag for the type of reference.

Flag	Type	Description
0x00000000	Public	Internal Chunks, with a max index of the 'DataType' field
0x10000000	Private	Internal Chunks, indices start after the 'DataType' field
0x20000000	External	seems to be unused
0x30000000	Delayed	External Resources

PommesTSR note on DataType

• For most objects DataType is 0x1 but for Rugs (as an example) DataType is 0x2. When DataType is 0x2 the VRTFIndex/VBUFIndex seems to be 1-based instead of 0 for the MLOD-chunks in the MLOD RCOL. Dont know if this is valid for any other index references.

plj note on DataType/Flag

• Given that "Public" is a reference to an internal chunk before "DataType", doesn't that mean "DataType" is really "Number of Internal Public Chunks"?
• Also, doesn't "Private" mean "relative to current chunk" rather than "Add on DataType"?

User:Dd764ta note on DataType/Flag

• Yes I think "DataType" would be more accurately described as number of public chunks
• Not exactly, private chunks just begin after the public chunks. It appears to be relative because in most files it is only the last public chunk that references private ones. An example of this would be the MODLs in the world packages, where the MLODs are private and their references are clearly not relative but start after the public chunks.

Chunks

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

Resource Types

These are the possible resource types, they are named by their first chunk.

Type ID	Name	Description
0x015A1849	GEOM	Body Geometry
0x01661233	MODL	Object Geometry
0x01D0E75D	MATD	Material Definition
0x01D10F34	MLOD	Animated Texture used to be Object Geometry LOD, defined by EA as animated texture: const unsigned int kAnimatedTextureResourceID = 30478132;
0x02019972	MTST
0x021D7E8C	TREE	Speed Tree Data
0x02D5DF13	S_SM	Jazz state machibe
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

Model Chunks

Possible chunks embedded in MODL and MLOD resources.

Type ID	Name	Description
0x01661233	MODL	Object Geometry
0x01D0E6FB	VBUF	Vertex Buffer
0x0229684B	VBUF	Vertex Buffer(Used in shadow meshes, no associated VRTF)
0x00000000		Vertex Buffer SwizzleInfo
0x01D0E70F	IBUF	Index Buffer
0x0229684F	IBUF	Index Buffer(Used in shadow meshes)
0x01D0E723	VRTF	Vertex Format
0x01D0E75D	MATD	Material Definition
0x01D0E76B	SKIN	Joint Definitions
0x01D10F34	MLOD	Object Geometry LODs
0x02019972	MTST	Material Set

Jazz Chunks

Possible chunks embedded in jazz S_SM resources

Type ID	Name	Description
0x02D5DF13	S_SM	State Machine
0x02EEDAFE	S_St	State
0x02EEDB18	S_DG	Decision Graph
0x02EEDB2F	S_AD	Actor Definition
0x02EEDB46	S_PD	Parameter Definition
0x02EEDB5F	Play	Play Animation Node
0x02EEDB70	Rand	Random Node
0x02EEDB92	SoPn	Select on Parameter Node
0x02EEDBA5	SoDn	Select on Destination Node (Unused)
0x02EEEBDC	SNSN	Next State Node
0x02EEEBDD	Prop	Create Prop Node
0x02EEEBDE	AcOp	Actor Operation Node
0x0344D438	Stop	Stop Animation Node