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TMD
Simon B edited this page Jul 6, 2016
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Container for 3D-Model Data.
Shoutout to User RandomTBush on the XeNTaX Forums for his Research on this!
Fields marked with an Asterix are just some educated guesses but need further investigation.
Ranges may be viewed as a Combination of a Start-Offset and an Instance-Count.
| Type | Description | Note |
|---|---|---|
| uint32_t | Magic# | ("tmd0" / 0x30646D74) |
| uint16_t | Unknown | |
| FeatureLevel_t | TMD-Feature-Level | |
| uint16_t | Unknown | |
| uint16_t | Unknown | |
| uint16_t | Unknown | |
| uint16_t | Unknown | |
| Bounds_t | Bounding Box | |
| Range_t | BVH-Data Range - see BVH_t | |
| Range_t | Loading Operations - see Operation_t | |
| Range_t | Unkown Range | |
| Range_t | Rigging-Data Range - see Rig_t | |
| Range_t | Unkown Range | |
| Range_t | PolyGroup-Data Range - see Polygroup_t | |
| Range_t | Face-Data Range - see Face_t | |
| RangeInv_t | Vertex-Data Range - see Vertex_t | Count and Offset are switched on this one, thus RangeInv_t |
| uint32_t | Unknown | |
| uint32_t | Unknown | |
| uint32_t | Unknown | |
| uint32_t | Unknown | |
| uint32_t | Unknown | |
| uint32_t | Unknown | |
| uint32_t | Unknown | |
| Range_t | Bone-Data Range - Bone_t | |
| Range_t | Bone-Hierarchy-Data Range - BoneHierarchy_t | |
| Range_t | Texture-Info Range - Texture_t | |
| uint32_t | Blank-Terminator* |
Feature-Level of the Vertex-Format.
| Type | Description |
|---|---|
| uint8_t | Feature-Level LSB |
| uint8_t | Feature-Level MSB |
The LSB may be viewed as a C-Style Bitfield which encodes the presence of the following Vertex-Data Features in this order:
| Type | Description |
|---|---|
| uint8_t:1 | Positions* |
| uint8_t:1 | Normals |
| uint8_t:1 | UV-Coordinates_0 |
| uint8_t:1 | UV-Coordinates_1 |
| uint8_t:1 | UV-Coordinates_2* |
| uint8_t:1 | Colors |
| uint8_t:1 | Unknown (always on)* |
| uint8_t:1 | Rigging |
Bounding Box Type
| Type | Description |
|---|---|
| float | Min-X |
| float | Min-Y |
| float | Min-Z |
| float | Max-X |
| float | Max-Y |
| float | Max-Z |
Range Interpretation of a Start and Count.
| Type | Description |
|---|---|
| uint32_t | Start |
| uint32_t | Count |
Range Interpretation of a Start and Count but with inverted Order of Elements.
| Type | Description |
|---|---|
| uint32_t | Count |
| uint32_t | Start |
| Type | Description | Note |
|---|---|---|
| Bounds_t | Bounding Box | |
| uint32_t | Some sort of Offset | Monotonically increasing from one Entry to the next |
| uint16_t | Unknown | |
| uint16_t | Unknown |
| Type | Description |
|---|---|
| uint16_t[3] | Vertex Indices representing a Face |
##Operation_t Instruction on how to Load the Raw-Data to Memory
| Type | Description |
|---|---|
| uint8_t | Operation-Value |
| uint8_t | Operation-Type |
| Operation-Type | Meaning |
|---|---|
| 0x20 | Set active Material to Operation-Value |
| 0x30 | Load Polygroup[Operation-Value] |
| 0x40 | Set active Rig to Operation-Value |
##Rig_t
| Type | Description |
|---|---|
| int32_t | Value |
| int32_t | Bones |
##Bone_t
| Type | Description |
|---|---|
| float[4][4] | Transformation Matrix |
##BoneHierarchy_t
| Type | Description |
|---|---|
| uint32_t | Hash* |
| float[3] | Bone-Head Position |
| int32_t | Bone-Parent |
| uint32_t | Bone-Head |
##PolyGroup_t
| Type | Description |
|---|---|
| uint16_t | Face-Count |
| uint16_t | Unknown |
| uint16_t | Face-Offset |
| Type | Description | Note |
|---|---|---|
| float[3] | Vertex Coordinates | |
| uint8_t[4] | Vertex Weights | Only present if Feature-Level Rigging is on |
| uint8_t[4] | Rig-Relative Bone Ids | Only present if Feature-Level Rigging is on |
| int8_t[4] | Vertex Normals | Only present if Feature-Level Normals is on |
| uint8_t[4] | Vertex Color | Only present if Feature-Level Color is on |
| int16_t[2] | UV Coordinates | Only present if Feature-Level UV-Coordinates_0 is on |
| int16_t[2] | UV Coordinates | Only present if Feature-Level UV-Coordinates_1 is on |