fatto cosi':

#VRML V2.0 utf8

# assi

Shape {
appearance Appearance {
material Material { emissiveColor 1 .5 0 }
}
geometry IndexedLineSet {
coord Coordinate {
point [ 0 0 0, 5 0 0, 0 0 0, 0 4 0, 0 0 0, 0 0 8, 0 0 0 ]
}
coordIndex [ 0 1 2 3 4 5 6 0 ]
}
}