<small>Authors: [[User:Koral|Koral]], [http://forums.qhimm.com/index.php?topic=6961.msg86318#msg86318 JWP] and [http://forums.qhimm.com/index.php?topic=13261.msg184344#msg184344 Vehek]</small>
= MCH Field Character Models =
Each MCH file contains a skinned-animated model representing a character on the field or world Maps. There appear to be multiple files of the same character representing differnt Level of Details.
They usually contain multiple TIM textures (standard PSX textures), mesh geometry, bones, skeleton heirarchy information and skinning information. The whereabouts of the Bone Animation data is currently unknown.
<br />
= Accessing MCH Files =
<small>todo</small>
<br />
= MCH File Structure =
= MCH File Structure = Header ==
== Header == 0x100 bytes [256 bytes] DWORD: Offsets to multiple Texture-Data Start: 0x00 Parse DWORDS until read value: 0xFFFFFFFF DWORD: Offset to Model Data
<prebr />0x100 bytes [256 bytes]
DWORD: Offsets to multiple == Texture-Data Start: 0x00 Parse DWORDS until read value: 0xFFFFFFFF ==
DWORD: Offset to Model Data
</pre>
== Texture-Data ==
[[PSX/TIM_format|TIM format]]
<pre> (for each Texture) Standard [TIM] format textures
Standard [TIM] format textures<br /pre>
== Model-Data ==
== Model-Data == {| border="1" cellspacing="1" cellpadding="3" align="center" styleclass="border: 1px solid black; border-collapse: collapse;wikitable"! style="background:rgb(204,204,204)" | Offset! style="background:rgb(204,204,204)" | Length! style="background:rgb(204,204,204)" | Description
|-
| 0x00
| Number of Skin objects
|-
|style="background:rgb(255,255,204)" | 0x18|style="background:rgb(255,255,204)" | 4 bytes|style="background:rgb(255,255,204)" | Unknown
|-
| 0x1C
| Offset of faces
|-
|style="background:rgb(255,255,204)" | 0x30|style="background:rgb(255,255,204)" | 4 bytes|style="background:rgb(255,255,204)" | Offset of unknown data
|-
| 0x34
| Offset of animation data
|-
|style="background:rgb(255,255,204)" | 0x3C|style="background:rgb(255,255,204)" | 4 bytes|style="background:rgb(255,255,204)" | Unknown
|}
<pre> Skeleton Data: 0x40 bytes per bone, recurse through number of bones dictated in Header (for each bone) SHORT: parent bone (1-based) SHORT: (unknown) DWORD: (unknown) SHORT: bone length DWORD * 15: (unknown) </pre> <pre> Vertex Data: (for each vertex) SHORT * 3: Vertex XYZ Position SHORT: (unknown) DWORD * 4: (unknown) </pre> <pre> Texture-animations Data:struct{ byte unknown byte total_textures? byte unknown byte uSize byte vSize byte replacement_section_count UV_pair original_area_coords byte unknown[2] UV_pair replacement_coords[replacement_section_count]};</pre>
<pre> Vertex Data:struct face { (for each vertex) u32 opcode; 0x07060125 = triangle, 0907012d = Quad BYTE unk[4]; SHORT * 3: Vertex XYZ Position SHORT : (unknown; //When bit 0x04 is set, sets semitransparency) BYTE unk[2]; u16 verticies[ DWORD * 4]; //vertex id's u16 verticies1[4]; //Edge data??? u32 Vertex_Colours[4]; TextureMap TextureData[4]; // TextureMap = u16 with the first byte = u and the second byte = v u16 Padding; u16 textureIndex; u32 padding[2]; //64 bytes};: (unknown)</pre>
<pre> Unknown Texture-animations Data, Seems to split up the skin-objects, triangles, and quads: struct { uint16 start_skinobject_index byte unknown uint16 skinobject_count byte total_textures? byte unknown[12] uint16 start_triangle_index byte uSize uint16 triangle_count byte vSize uint16 start_quad_index byte replacement_section_count uint16 quad_count UV_pair original_area_coords byte unknown2unknown[2] UV_pair replacement_coords[8replacement_section_count] };</pre>
<pre> struct face { Skin-Object Data: u32 opcode; 0x07060125 = triangle, 0907012d = Quad (for each skin-object) BYTE unk[4]; SHORT unknown; //When bit 0x04 is set, sets semitransparency BYTE unk[2]; u16 verticies[4]; //vertex id's u16 verticies1[4]; //Edge data??? u32 Vertex_Colours[4]; TextureMap TextureData[4]; // TextureMap = u16 with the first byte = u and the second byte = v u16 Padding; u16 textureIndex; u32 padding[2]; //64 bytes };
SHORT Unknown Data, Seems to split up the skin-objects, triangles, and quads: index of first vertex SHORT: number of vertices struct { uint16 start_skinobject_index SHORT: Bone ID (1-based) uint16 skinobject_count SHORT: ( byte unknown)[12] uint16 start_triangle_index uint16 triangle_count uint16 start_quad_index uint16 quad_count byte unknown2[8]</pre> };
Skin-Object Data:
(for each skin-object)
SHORT: index of first vertex
SHORT: number of vertices
SHORT: Bone ID (1-based)
SHORT: (unknown)
<br />
<small>todo: notes on skinning, animation data</small>
=MCH Model File List=
<small>todo</small>
