It seems the Plot3D reader is unable to correctly read function files. I have a Plot3D grid file grid.xyz (binary, multi-grid, with IBlanks, double precision and written in Fortran) and a function file volume.f containing 6 scalar fields. The two files open just fine on other software such as Tecplot. Any idea what could be going on? paraview_p3d_bug.tar.gz (1.1 MB)