white hair without using GI

[moxi]

I have created white hair in various ways using a mix of various softwares/approaches
(a) nhair + vrayHairMtl3 + GI + vray 2.25/3
(b) shave + shave shader + noGI + vray 2.25/2.3
(c) yeti + vrayHairMtl3 + GI +vray 2.25/2.3

What I need is to create white hair WITHOUT GI. Short of faking gi with an array of lights, or jacking up the diffuse component of the shader above 1.0, which is a delicate balance and forces my hand on how to construct shaders for the non-hair elements in the scene, does anyone have any good workflows for this? I cannot really avoid a general gray tone. Even the vray presets on the vrayHairMtl3 have always created are a cool gray and not a true white in the absence of GI.

I understand the premise of the shader and GI is kind of a must for white hair imo but I am operating under some render constraints and just curious if I have missed a previous thread on this or if anyone has any alternative workflows they would be willing to share.

[tashko.zashev]

Hi,

It is difficult to be achieved without the possibility to affect only the V-ray Hair diffuse color with lights (especially for the ambient one). We have this already reported and our developers are working on it.
Here is a thread related to the same topic.
http://forums.chaosgroup.com/showthr...t=maya+ambient

For option (b) this should work in my opinion.

[vlado]

Even the vray presets on the vrayHairMtl3 have always created are a cool gray and not a true white in the absence of GI.

You can always use a bit of an ambient light to brighten it up. You can link it to the hair object only. Other than that, there probably needs to be a lighting boost multiplier in the shader...

Best regards,
Vlado

[Morbid Angel]

what i asked for before ))

[moxi]

thank you for the response, Vlado. I think that would be helpful, but I think GI techniques in combination with your optimization of hair rendering in 3.0 maya may make this a moot point. It's just that some productions (or studios for that matter) have been nonGI for a bit of time and finding ways to accomplish with and without would be a helpful feature. Cheers.

R