LIST
{
{OFF

#  the number of  vertices
8 

#  the number of faces
6 

#  the number of edges (not used in fact)
12 

#  the list of vertices 

     1.0 -1.8 1.0 
     1.0 -1.8 -1.0 
     1.0 -2 1.0 
     1.0 -2 -1.0 
     -1.0 -1.8 1.0 
     -1.0 -1.8 -1.0 
     -1.0 -2 1.0 
     -1.0 -2 -1.0 

#  the list of faces. each line has the following format:
#
#  the num. of vertices in the face, 
#
#  the list of the vertices in the face, in cyclic order, 
#  using the list of vertices above, numbered 0,1,2,....,7
#  
#  a the color specification of the face, using a 4-number code:
#  intensities of red,green and blue, and some "alpha" parameter

     4 0 2 3 1  0 0 1 # right face
     4 4 5 7 6   0 0 1  # left face
     4 0 4 6 2  .1 .4 .7 .75  # front face
     4 1 3 7 5  .1 .4 .7 .75  # back face
     4 0 1 5 4  .1 .4 .7 .75 # top face
     4 2 6 7 3   1 1 1 .75 # bottom face
}
{
appearance {linewidth 3} 

VECT  # a union of polygonal curves

1 # total num of curves
3 # number of pts in all curves
1 # num of colors you are going to use to paint the pts with
 
3  # num of pts in the 1st curve 
1  # num of colors in 1st curve
 

0 -2 -1 # the coordinates of the pts
0 0 -1 
0 0 0

1 1 1 1 # color specification


}
}