Hi candide, thanks for testing that.

> Are the cylinders supposed to be completely smooth? I can
> see some larger segments on the sides, even with smoothing
> turned on

Yeah, it should be completely smooth if it was shaded using the vertex normals that are stored in the file.

If you see any segments at all, it means that smoothing is being created from the polygon data (which is in separate pieces because it was saved with no welding out of MoI) instead of using the true cylinder normals that are in the OBJ file.

For example here is what it looks like imported into Cinema4D and rendered, note that there is no visible seam between any of the segments:



- Michael