Does the lastest version of the Constructor resolve the seam problem?

#1 Describe this "seam problem".

#2 sounds like you mean a problem with lighting seams? That can be fixed by either better construction of your model, or by tweaking the export/HSR settings, or (probably) a combination of both.

#3 Yep, just like Jeff said, the problem is lighting seam. I had a project and stopped at here , I couldn't continue because it was quite easy to produce lighting leaks in the Constructor of that version.

Hope the seam problem of Constructor could be resolved, it would be much better if the vertexes within a small distance could be merged to one vertex automatically.

#4 they can. quantize.