OTOY Forums

Sometimes it works to do a slight scale (0.999) on the selection of objects if they have a centered pivot, but these are all workarounds and not actual solutions unfortunately.

It looks like you are at the limits of the algorithm, unfortunately. As others have written, co-resident polygons that are perfectly aligned create a precision issue that results in artifacts such as these, and the typical CAD tesselation is doing this no favors.

today i made some test with objects i created in c4d and i have to say, that it seems that your are not allowed to make the tiniest error without these lines appearing.

regards,
Stefan

ray epsilon: 0.000001