MDN

MDN files are the primary model format used in MGS4. They contain the standard information you'd expect for a model file (vertex buffer etc) and also information for which texture links to the model.

Format Specifications

Metal Gear Solid 4

• Endian Order : Big Endian
  

Header
uint 32 {4}	Header
uint 32 {4}	Filename
uint 32 {4}	Count of Bones
uint 32 {4}	Count (Unknown)
uint 32 {4}	Count of Vertex Index
uint 32 {4}	Count of Face Index
uint 32 {4}	Count of Vertex Definition
uint 32 {4}	Count (Unknown)
uint 32 {4}	Count of Material
uint 32 {4}	Count of Bone Pallet
uint 32 {4}	Offset of Bones
uint 32 {4}	Offset (Unknown)
uint 32 {4}	Offset of Vertex Index
uint 32 {4}	Offset of Face Index
uint 32 {4}	Offset of Vertex Definition
uint 32 {4}	Offset (Unknown)
uint 32 {4}	Offset of Material
uint 32 {4}	Offset of Bone Pallet
uint 32 {4}	Offset of Vertex Buffer
uint 32 {4}	Size of Vertex Buffer
uint 32 {4}	Offset of Face Buffer
uint 32 {4}	Size of Face Buffer
uint 32 {4}	null Bytes
uint 32 {4}	Filesize
Boundary
float {4}	Max X
float {4}	Max Y
float {4}	Max Z
float {4}	Max W
float {4}	Min X
float {4}	Min Y
float {4}	Min Z
float {4}	Min W
Bones (For Count of Bones)
uint 32 {4}	Name
uint 32 {4}	y0
uint 32 {4}	Parent
uint 32 {4}	w0
float {4}	Rotation X
float {4}	Rotation Y
float {4}	Rotation Z
float {4}	Rotation W
float {4}	Position X
float {4}	Position Y
float {4}	Position Z
float {4}	Position W
float {4}	Max X
float {4}	Max Y
float {4}	Max Z
float {4}	Max W
float {4}	Min X
float {4}	Min Y
float {4}	Min Z
float {4}	Min W
Unknown (2nd in count/offset)
uint 32 {4}	Name
uint 32 {4}	null Bytes
uint 32 {4}	Parent
uint 32 {4}	w0
Vertex Index (For count of vertex index)
uint 32 {4}	Unknown
uint 32 {4}	Unknown
uint 32 {4}	Count of Face Section
uint 32 {4}	Start of Face Section
uint 32 {4}	Vertex ID
uint 32 {4}	Bone Pallet ID
uint 32 {4}	Count of Vertex
uint 32 {4}	null Bytes
float {4}	Max X
float {4}	Max Y
float {4}	Max Z
float {4}	Max W
float {4}	Min X
float {4}	Min Y
float {4}	Min Z
float {4}	Min W
float {4}	Position X
float {4}	Position Y
float {4}	Position Z
float {4}	Position W
Face Index (For count of face index)
uint 16 {2}	Type
uint 16 {2}	Count
uint 32 {4}	Offset
uint 32 {4}	Group
uint 16 {2}	Start of Vertex
uint 16 {2}	Length of Vertex
Vertex Definition (For count of vertex definition)
uint 32 {4}	null Bytes
uint 32 {4}	Definition Count
uint 32 {4}	Size
uint 32 {4}	Start
[uint 8 {1}] (variable size array)	Definition
[uint 8 {1}] (variable size array)	Position
Unknown (6th in count/offset)
uint 32 {4}	Size
uint 32 {4}	Name
uint 32 {4}	Unknown
uint 32 {4}	Unknown
uint 32 {4}	Unknown
uint 32 {4}	Unknown
uint 32 {4}	Unknown
uint 32 {4}	Unknown
uint 32 {4}	Unknown
uint 32 {4}	Unknown
uint 32 {4}	Unknown
uint 32 {4}	Unknown
half float {2}	Unknown X
half float {2}	Unknown Y
half float {2}	Unknown Z
half float {2}	Unknown W
half float {2}	Unknown X
half float {2}	Unknown Y
half float {2}	Unknown Z
half float {2}	Unknown W
half float {2}	Unknown X
half float {2}	Unknown Y
half float {2}	Unknown Z
half float {2}	Unknown W
half float {2}	Unknown X
half float {2}	Unknown Y
half float {2}	Unknown Z
half float {2}	Unknown W
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
Material Index (for each material index)
uint 32 {4}	Name
uint 32 {4}	null Bytes
float {4}	T
float {4}	U
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
uint 32 {4}	null Bytes
Bone Pallet (for each bone pallet)
uint 32 {4}	Unknown
uint 16 {2}	Count
uint 16 {2}	null Bytes
[uint 8 {1}] (variable size array (for each count))	Bone ID
Vertex Buffer (for each verticies)
float {4}	Mesh Buffer
half float {2}	Texture Buffer
uint 8 {1}	Weight Buffer
uint 8 {1}	Colour Buffer
uint 8 {1}	Bone Buffer
uint 8 {1}	Normal Buffer
Vertex Buffer (for each face)
uint 16 {2}	Face Buffer