Which format is best for importing CAD files in Cinema 4D?

I have a bunch of models that I would like to render with Cinema 4D, but I having some trouble with importing the files in Cinema 4D.
I am able to import the file, however the quality of the file isn't good at all, the meshing is all wrong.
I would be glad if anyone of you can point me to some kind of tutorial or something related to this topic....

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3 Answers

As the CTO of Okino and MAXON's Cinema4D conversion provider since the 90's I'd just like to insert a few tidbits of info:

- IGES 144/142/128 has been deprecated for a decade. There are 3 main versions of IGES: 1980's (bounded), 1990's (surfaced) and 2000's (BREP solids). 144/142/128 is the old 1990's version which all top-6 MCAD programs output by default and it is just technically bad.

- The "Engineering Bundle" is now obsolete as of 2011. For the first time in 14 years there is now a direct CAD -> native C4D conversion system via our recently finished PolyTrans-for-Cinema-4D system:


- In the direct manner in which I work with every Okino/Maxon customer, what you would normally do is email me (lansd@okino.com) with the name of your source MCAD program and I would tell you the technically proper way to source from that program. Every MCAD program uses and needs a different conversion method. 80% of my new customers do CAD conversion blindly and wrong, such as accepting whatever files are given to them, and then wonder why there is patch cracking or shading anomalies -- it's all about the sourcing of the data which is most important. I always make sure to educate and teach each of our Okino users how to do CAD conversion properly.

- And as a minor point, CAD -> C4D is always a 100% perfect process when done properly and using the correct file formats.

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THe perfect Format to use it in C4D (importation) is Obj, FBX,

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IGES 144 does the trick in most cases,
Engineering Bundle Edition (and Okino) import data in C4D as IGES 144/142/128.

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