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format.md

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Based on this.

Header

SMD

version 1

BinarySMD

| magic `SMDX` | format version (byte) |
| block count (int) |
  | block type (byte) | block |

Nodes

SMD

nodes
<int|ID> "<string|Bone Name>" <int|Parent ID>
end

BinarySMD

| block type = 0 (byte) |
| count (int) |
  | id (int) | name (string) | parent (int) |

Skeleton

SMD

skeleton
time <int>
<int|bone ID> <float|PosX PosY PosZ> <float|RotX RotY RotZ>
end

BinarySMD

| block type = 1 (byte) |
| vector count (int) |
  | vectorX (float) | vectorY (float) | vectorZ (float) |
| keyframe count (int) |
  | keyframe time (int) | bone count (int) |
    | bone ID (int) | pos index (int) | rot index (int) |

Triangles

SMD

triangles
<material>
<int|Parent bone> <float|PosX PosY PosZ> <normal|NormX NormY NormZ> <normal|U V> <int|links> <int|Bone ID>  
<normal|Weight>
end

BinarySMD

| block type = 2 (byte) |
| material count (int) |
  | material name |
| vector count (int) |
  | vectorX (float) | vectorY (float) | vectorZ (float) |
| uv count (int) |
  | U (float) | V (float) |
| triangle count (int) |
  | material index (int) |
  | parent bone (int) | pos index (int) | normal index (int) | UV index (int) | link count (int) |
    | link bone ID (int) | link weight (float) |
  | parent bone (int) | pos index (int) | normal index (int) | UV index (int) | link count (int) |
    | link bone ID (int) | link weight (float) |
  | parent bone (int) | pos index (int) | normal index (int) | UV index (int) | link count (int) |
    | link bone ID (int) | link weight (float) |

Vertexanimation

SMD

vertexanimation
time <int>
<int|ID> <float|PosX PosY PosZ> <float|NormX NormY NormZ>
end

BinarySMD

| block type = 3 (byte) |
| vector count (int) |
  | vectorX (float) | vectorY (float) | vectorZ (float) |
| frame count (int) |
  | frame time (int) | vertex count (int) |
    | vertex ID (int) | pos index (int) | normal index (int) |