Sharp shadows on geometry

[Egert_Kanep]

How to get rid of these sharp polygon shaped shadows on character armour, is my only choice to use high level of subdivision?

[B.Y.O.B.]

Looks like the terminator artifact.
From the wiki (bottom of the page):

Unfortunately there is no real solution. You can only try to mitigate the effect by subdividing the geometry further and/or increase the size of the light source that is causing the problem.

[Sharlybg]

If you have a bump map on your shader try to make it smaller it work sometimes.

[Egert_Kanep]

I tried with higher subdivision and it made this problem less visible. I googled this effect and seems that other render engines also have same problem.
Seems there is not a clever solution for it yet?

An article about this matter, it explains this problem pretty well -http://blog.irayrender.com/post/2904227 ... terminator

[lacilaci]

It is shadow terminator and it is pretty common issue, and I think both vray and corona have some sort of "fix". I remember Ondra from corona once mentioned that there is a way to "hack" it but not a proper fix I guess.

[kintuX]

It is shadow terminator and it is pretty common issue, and I think both vray and corona have some sort of "fix". I remember Ondra from corona once mentioned that there is a way to "hack" it but not a proper fix I guess.

More about it here...
viewtopic.php?f=9&t=119&p=1969&hilit=te ... thea#p1969