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Old 01-03-2013, 08:36 AM   #1
New Member
chennai, India
Join Date: May 2010
Posts: 4
p_hairtk shader

hi, i used a shave&haircut maya 2012 with p_hair tk shader.....the hair rendered little bit grain,looks like a low quality render
mentalray setting
rapid hair,scanline and using a spotlight, mentalray override shadow with detail shadow map,shave globals render mode hair primitive....
Old 01-03-2013, 11:12 AM   #2
DePaint's Avatar
Emre M.
Istanbul, Turkey
Join Date: Jun 2008
Posts: 1,156

The Maya forum section is here:

Good luck!
Old 01-03-2013, 01:07 PM   #3
Join Date: Apr 2005
Posts: 434
Don't use scanline. Use either the rasterizer (might want to check out rasterize hair disposable) or raytracing (possibly with unified sampling).
Old 01-03-2013, 04:55 PM   #4
Maya Sloth
eggly bagelface
Sydney, AU
Join Date: Apr 2010
Posts: 562
Use Rasterizer.
Use hair primitives... not volume.

DON'T USE Saturation/Color/Gain variation.... all at 0.0. (Except for still images).
That's the biggest noise culprit I've found with the hair puppet shader.

It's mentioned in this tutorial. I did a test and discovered it to be true.

Note the section 2/3 of the way down:


Possible reasons of fur flickering in animation:
1) mesh smooth node on maya fur geometry with smooth UV= ON, if so- turn it off.
2) flickering shadows- rize shadow map samples.
3) overal flichering - be sure in p_HairTK all variations (saturation, color, gain)= 0.
Old 01-03-2013, 04:55 PM   #5
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