Shave & Renderman weird issue

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Old 07 July 2013   #1
Shave & Renderman weird issue

Hello Everyone.

I'm currently working on a furry character for a project. I groom its fur using Shave & a Haircut and render it with Renderman for Maya. While rendering, I get the weirdest phenomena ever:

http://imageshack.us/a/img32/8205/8zof.jpg

As you can see from the above image, I'm getting the hair on the character rendered as if it is placed directly on the lowpoly mesh, all creased in its edges.

I smoothed it, deleted history and exported it to another scene just in case. Still no success. Any suggestions?
Just one more step I can think of from the top of my head: apply Renderman's subd scheme on the Shave node as well... Though it still makes no sense what so ever.

Any suggestions?

Thanks for your help in advance, fellas.
 
Old 07 July 2013   #2
Why don't you smooth your mesh first and then slap your Shave into it ?

/r
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Old 07 July 2013   #3
Quote:
Originally Posted by ristopuukko
Why don't you smooth your mesh first and then slap your Shave into it ?

/r


I did actually... Tried it both ways
The main reason for you not todo it by that order, though, is because it creates a huge amount of guides on a smoothed mesh, making the whole combing process much more cumbersome...
Either way, it's not that, I think...
 
Old 07 July 2013   #4
I used to get a similar result. A possible problem is your deep shadow maps shadow bias is too low. How much to increase is trial and error.

Most cases for me a bias of 0.01 needed to be raised to 0.2 to eliminate that banding and faceted look!
 
Old 07 July 2013   #5
Quote:
Originally Posted by egglybagelface
I used to get a similar result. A possible problem is your deep shadow maps shadow bias is too low. How much to increase is trial and error.

Most cases for me a bias of 0.01 needed to be raised to 0.2 to eliminate that banding and faceted look!

Thanks eggly!

I actually reached the same conclusion yesterday, after tweaking pretty much every possible light related aspect... Wasn't too sure about the proper bias ratio for better results, though...
 
Old 07 July 2013   #6
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