type: (fff)*
msh  % a mesh quadrilateral
"" mtrlNm "mat" end
   vrtxPstn
     0.5 -0.5 0.0
     0.5  0.5 0.0
     -0.5  0.5 0.0
     -0.5 -0.5 0.0
   end
   vrtxNrml
     0.0 1.0 0.0
     0.0 1.0 0.0
     0.0 1.0 0.0
     0.0 1.0 0.0
   end
   qdrltrl
     0 1 2 3
   end
end