WDD

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WDD is the format used for ped models and lod models in GTA IV.

File Format

RSC CPU section (Size found from the flags @ 0x08 of RSC file header)

-Note on RSC (24 + 8) pointer structure:

* CPU Offsets are of form [xx xx xx 50] * Data Offsets are of form [xx xx xx 60]

WDD Header
-------------------------------------------------------------------
Offset	Size	Type	Data			Description
-------------------------------------------------------------------
0x00	4b	LONG	VTable		0xA4536900
0x04	4b	Offset	BlockMapAdress		Marks end of Header
0x08	4b	LONG	ParentDictionary	(Usually 0)
0x0C	4b	LONG	UsageCount		(Usually 1)
0x10	8b	SimpleCollection<Hashes>	Contains hashes of the models
0x18	8b	PointerCollection<WDR>		Contains Pointers to WDR files
0x1C	4b	LONG	Unknown
0x20	12b	0xCD Padding till 0x0F
--------------------------------------------------------------------
PointerCollection (BlockSize 0x08) 
Contains pointers to the data of the given type
--------------------------------------------------------------------
0x00	4b	Offset	Offset to the Pointers
0x04	2b	Short	Number of Pointers
0x06	2b	Short	
--------------------------------------------------------------------
SimpleCollection (BlockSize 0x08) 
Contains data of the given type
--------------------------------------------------------------------
0x00	4b	Offset	Offset to the Data
0x04	2b	Short	Data Count
0x06	2b	Short	Data Size

Tools and Scripts

The following tools and scripts can be used to import & export (edit) these model files.