Parser for a subset of Wavefront OBJ written in C99

• the basics required for vertices, normals, tex coordinates, and faces

• mtl
• listing vertices or normals or tex coords not in one go
  • example supported:

    v 1 1 1
    v 1 0 1
    v 0 1 0
    ...
    v 1 1 0
    
    vn 1 0 1
    ...
    vn 0 1 1
    
    vt 0 0
    vt 1 0
    ...
    vt 1 1

    unsupported:

    v 1 1 1
    vn 1 0 1
    vt 0 1
    ...
    v 1 1 0
    
    v 1 0 1
    ...
    vt 0 1
    
    vt 0 0
    vn 1 0 1
    ...
    vn 1 1 0