P3D Lod Faces

Alias 'Polygons'

LodFace

LodFace
{
  //////////// MLOD ////////////////////////
  char              TextureName[32]       // SP3X ONLY (ofp)
  ulong             type;                 // 3==Triangle or 4==Box
  PsuedoVertexTable PsuedoVertexTables[4];//
  ulong             FaceFlags;            // P3D Point and Face Flags
  Asciiz            TextureName;          // P3DM ONLY (arma)
  Asciiz            MaterialName;         // P3DM ONLY (arma)
  ////////// ODOL   ////////////////////////
  ulong             FaceFlags;            //ODOL7 ONLY see P3D Point and Face Flags
  short             TextureIndex;         //ODOL7 ONLY
  byte              type;                 // 3==Triangle or 4==Box
  ushort            VertexTableIndex[type]//
  //////////////////////////////////////////
}

There are always 3, or 4, vertices.

• 3 point vertices describe a triangle.
• 4 point vertices describe a rectangle.

The indices must be transformed as follows

• triangles  : 1st posn, 2nd posn, 0th posn.
• quadrangles : 1st, 2nd, 3rd, 0th

The each of 3 (or 4) indexes look up their respective vertextable, which contains, points, normals, uvsets etc.

The TextureIndex is a zero based array. If set to -1, there are no textures for this face or section

PsuedoVertexTable

PsuedoVertexTable
{
 ulong PointsIndex;
 ulong NormalsIndex;
 float U,V;
}

Model File Formats