RE: Shading hair

["Marc-Andre Carbonneau" <marc-andre.carbonneau(at)ubisoft.com>]

Hey Daniel,

 

Perhaps your shader is already good enough but I lack the ability to make it look the way I need?

 

I am trying to make “dry” hair. Attached is an example.

 

What happens is that I get specular that is too harsh and all over the hair. If you look at the image, you notice how it’s really uneven.

 

I notice that the Muhair shader requires a light setup that is different than the one I use for my face…otherwise the colors are blown?

The volumic shadow maps don’t seem to work either. Is this a bug?(might be because Muhair was developed a while ago?)

 

I just did some test with a little comping and I’m getting closer but that’s with the Hair_geo_shader which takes long to render.

That’s why I’d prefer to use Muhair.

 

Thanks

MAC

 

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From: owner-xsi(at)Softimage.COM [mailto:owner-xsi(at)Softimage.COM] On Behalf Of Daniel Rind
Sent: February 27, 2007 10:14 AM
To: XSI(at)Softimage.COM
Subject: Re: Shading hair

 

Well, post your wishes.

 

Ciao, Daniel!

 

2007/2/27, Alan Jones <skyphyr(at)gmail.com>:

I've messed around with a sprite shader with a mixer gradient using
the bary co-ordinates to drive the matte and using OrenNayaWolff for
the illumination and got some reasonable results - though it was a
long time ago. (Sorry for pimping my own warez)

Cheers,

Alan.

On 2/27/07, Kris Rivel < krisrivel(at)gmail.com> wrote:
>
>  Let this be a reminder how badly we need some better hair shaders and
> better hair control overall.
>
>
>
> Kris Rivel
>  3D Artist
>  kris(at)krisrivel.com
>  www.krisrivel.com
>
>
>  Marc-Andre Carbonneau wrote:
>
>
>
> Hi.
>
>
>
> I have a full head of hair to shade. It needs to be realistic. I'm using
> Muhair and I can't get something that looks convincing.
>
> I've been told it's way better and faster than XSI's hair shader and the
> hair_geo_shader.
>
>
>
> My character has short blondish hair that looks dry.
>
>
>
> Anybody got something real looking and could provide me with indications,
> light setup, shader tricks?
>
>
>
> We made hair before but it didn't have to look realistic so to speak…
>
>
>
> Thanks.
>
>
>
> MAC
>
>

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