Surface rendering errors

[taiji_ishiguro]

Surfaces, etc. are not rendered correctly. The default Rhino render renders them correctly. I have exported parts of the model and tried to render them again without any improvement. What could be the cause?

[Micha]

Looks like a numerical error by a to far distance of the scene to the origin (0,0,0). In this case it would help to move the scene around 0,0,0.

[taiji_ishiguro]

Thank you for your comment. I tried your advice and it solved the problem.