Re: Shading hair

["Graham D Clark" <mailgrahamdclark(at)gmail.com>]

On 2/26/07, 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

Well hopefully something like Helgee and Adam helped us make for hair dynaimcs and grooming gets out to the users, made achieving what you wanted, rather than rolling the dice with sliders and dynamics, a possibility...

On 2/28/07, peter boeykens <peter_b(at)skynet.be > wrote:

run into with hair, is that it reacts differently than a surface does.

as a result, your carefully tweaked lighting setup for the surfaces will often produce undesired results for hair.

 

I want to second this as a MAJOR issue. The shading for hair and surface not matching requires multiple passes and animating light rigs and all kinds of manual and extremly unpleasant work.

 

On a large project its a major slowdown to a pipeline.

Also I think hair is not developed with enough consideration of it as an asset or part of a larger asset moving through a pipeline, so that others can light it along side adjoinign surfaces and have them match when surfaces or the lighting moves, and be able to reconect hair assets and attribute easily as part of the character asset, right now the process is to too linear and inflexible.

 

Even worse is if one is trying to blend from shaded geometry to instances to hair (like i had to for wings. it was really unelegant for the lighters, i was very frustrated and embarrased about handing off such crap to them to deal with, thankfully they were very talented and patient) Daniels shader really helped and gave some great results but I still found it impossible to have it light well and match the adjoining surfaces and instances.

 

--
Graham D Clark, Technical Supervisor
Paramount Pictures, Marx Brothers Building, Room 111, 5555 Melrose Ave, Hollywood, CA 90038, graham.clark(at)mainstreetpictures.com
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