Hair and Fur to Ornatrix

 
 
 
Posted by:davidaucourt
Data created:28 May 2013

Hello,

We recently bought Ornatrix to change our hair and fur pipeline. We have many characters with hair and fur modifier that we want to change to Ornatrix. 

The workflow we found is this : 

- export the hair and fur guides as splines

- put the Ox Guides from Shape and Ox Ground Strands modifiers on them

- collapse the stack in order to have Ox Baked Guides wich we found more stable than the Ox Ground Strands

- groom the fur on top of it

 

This workflow works pretty well except when using point cache.

First, if we stay with the Ox Ground Strand (wich can be usefull to have point cached splines), we have to pick the base surface each time after loading the point cache of the base surface. Otherwise, the splines stay in their original position, doing strange things.

The other problem is with the hair clustering modifier, it seems that it is clustering hair between parts I don't want (for exemple between torso and arms). This problem occured only when I'm using point cache on the distribution surface (on Ox Bake Guides), as it works well in T-pose.

Is there any way to "freeze" those things in order to avoid scripting this ?

Is this workflow seems good to you ?

 

Thanks,

David Aucourt, TAT Studio

Lead character artist, TAT Studio

Hi David,

I don't think you should have to keep grounding the strands on a cached mesh. We will be havign a look at that to see if there is an issue there. 

Cluster should initialize at a start frame. I might suggest gradually moving from your T-Pose to initialize into the cached animation by blending the animation over a few frames. Something like you might do with cloth. 

 

Hope that helps some.

Thanks

Michael

Hi,

 

Thanks for the reply, we found solutions for the problems. The ground strand modifier just needed to be refreshed by moving to another frame and we used the threshold option in the hair clustering to fix our problem.

 

We have a new issue now : while activating a hair clustering modifier a strange dark area appears.

 

We are rendering with the latest version of VRay and the VRayHairMtl.

Any ideas ?

 

Thanks,

 

David Aucourt, TAT Studio

Lead character artist, TAT Studio

Hi David,

 

That is strange. Can you tell me if your using DR at all or is this all on one local machine?

 

Thanks

Michael

Hi Michael,

I was using DR so I just tried on one local machine and the same thing happened...

Maybe we can send you the scene ?

 

Thanks

Lead character artist, TAT Studio

OK cool. Yes please do shoot me the scene. Michael.McCarthy@ephere.com

 

Thanks

Michael

Any news from this bug ?

 

Edit : here the bug in action : http://tatprod.com/Bug/Bug_hyene.mov

 

Looks like light cache black spot...

http://tatprod.com/

Hello,

We have not been able to pinpoint this issue yet. It really seems like a DR issue but we understand it happens with a local only render too? Is this movie rendered locally only?

 

Thanks

Michael

Hello

 

It's local rendering on one machine without DR.

To me it looks like more to a Light Cache bug on HairClustering modifier

http://tatprod.com/Bug/Hyene_LightCache.JPG

 

http://tatprod.com/

Hi,

I have problems again.  HairClustering modifier blurs fur , mask for this part of the black. How to fix?

all right , the question decided


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