here
p	0	0	0
p	96	0	0
p	96	0	24
p	0	0	24

mtl kivi
f 0 1 2 3

obj toru x+12 z+12
# obj toru x*0.2 z*0.2 y*0.5 x+36 z+12
obj toru x*0.4 z*0.4 y*0.5 x+30 z+6
obj toru x*0.4 z*0.4 y*0.5 x+30 z+18
obj toru x*0.4 z*0.4 y*0.5 x+42 z+6
obj toru x*0.4 z*0.4 y*0.5 x+42 z+18

obj bus x+60 y+1 z+2
obj bus x+70 y+1 z+2
obj bus x+80 y+1 z+2