Frag' mich nicht warum, aber wenn du deinen Sockel so definierst, sieht man die verdeckte Linie korrekt:
</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">Code:</font><hr /><pre style="font-size:x-small; font-family: monospace;">100: !!Sockel............................................
PUT 0.00, 0.00, 15,
0.00, 0.025, 15,
tfs, 0.025, 15,
tfs, 0.00, 15,
0.00, 0.00, -1
MATERIAL mat
PRISM_ NSP/3, 0.2, GET (NSP)
PUT 0.00, 0.00, 15,
0.00, 0.025, 15,
tfs, 0.025, 15,
tfs, 0.00, 15,
0.00, 0.00, -1
MATERIAL mat
ADDY brt-0.025
PRISM_ NSP/3, 0.2, GET (NSP)
DEL 1
PUT 0.00, 0.00, 15,
0.00, brt-0.05, 15,
tfs-0.01, brt-0.05, 15,
tfs-0.01, 0.00, 15,
0.00, 0.00, -1
ADDY 0.025
MATERIAL "Farbe, grau"
PRISM_ NSP/3, 0.2, GET (NSP)
DEL 1
PUT 0.00, 0.00, 15,
0.00, brt, 15,
tfs, brt, 15,
tfs, 0.00, 15,
0.00, 0.00, -1
ADDZ 0.2
MATERIAL mat
PRISM_ NSP/3, 0.025, GET (NSP)
DEL 1
RETURN