nearly all models of our demo games were made in Cinema4D, friend uses it extensively, also wrote the exporter. Modelling work seems okay (no animation stuff so, as that is a bit weak). And he had to code his own UV tools and some other "lowpoly" oriented scripts, some of which can be found at our website under "ArtTools".
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PSIONIC has wrotten down few tutos - have look ,
http://www.psionic3d.co.uk/page.php?3
He's got his own forum and he knows well C4D, ...
http://www.psionic3d.co.uk/forums/index.php