Overview

This is a Sims 3:RCOL chunk found embedded in MODL and MLOD resources.

DWORD			// 'VBUF'
DWORD			// 00000101
DWORD			// 0
DWORD SwizzleInfo	// RCOL reference of a Swizzle Info block(no tag, TGI:0x0000000-0x00000000-0x0000000000000000)
{data}			// Data format is described by the VRTF description
			// If VRTF is not present, then it is a 16 byte vertex size, or 8 byte if the type for this VBUF is 0x00005003

Swizzle Info

Unnamed block referenced only by vertex buffers

DWORD segmentCount //1 for each group that uses the VBUF
--repeat(segmentCount)
    DWORD VertexSize // size in bytes of this entry
    DWORD VertexCount// number of verts used in the group
    DWORD ByteOffset// offset into VBUF in bytes
    --repeat(VertexSize/4)
         DWORD SwizzleCommand

Swizzle Commands

Based on contributions from delphy, karybdis and atavera