#B1----------------------------------------------
plane p 0 0 0 1 0 0 
pcone p p 12 10 20
box bx 5 .5 0 10 5 20
bfuse f p bx
nexplode f f
depouille result f 0 0 1 f_4 5 0 0 20 0 0 1

checkprops result -s 2442.47