autocrop
-2 2 setxrange
-1.5 1.5 setyrange
100 setxunit

5 -3 6 SetCamPos
0 0 0 SetCamView

-10 10 setxrange3d
-3 3 setyrange3d

5 -3 10 setlightsrc
1.5 setlightintensity

2 setlinejoin 
20 setfontsize
setTimes

%/aretescachees false def
1 newtetraedre
dup [.5 .6] solidputhuecolors

drawsolid*

setTimesItalic
(Tétraèdre)
xmin xmax add 2 div ymin uctext