Maybe a wrong material settup in Kerkythea (Answer: No, bad topology)

[micheus]

Material render test in Kerkythea failed.

PhotonMap:


MLT:


It doesn't matter what I change in the settings I never get control over the specularity as well as those black areas in the border doesn't disappear. I few like I need to add some thickness to it since it's a single edge .

The MLT also accuses that overlapped faces issue. It's very noticeable in the right leaf.