Kristinka Hair Tests

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rray
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Kristinka Hair Tests

Post by rray » 06 Jan 2010, 12:12

Hi all
I thought Anto Matcovic's very awsome Kristinka Hair Toolkit
(see viewtopic.php?f=4&t=199&start=30)
could need a gallery thread.
Edit .. . this turned more into a tests thread, renaming
:ymhug:
Here's my first try, modified one of the samples (Simulation-OnePoint-ShortHair), more heavy "Bend" deformer requires some ear hair removall...
Attachments
RayKrH001.jpg
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RayKrH002.jpg
RayKrH002.jpg (125.41 KiB) Viewed 7791 times
Last edited by rray on 02 Feb 2010, 20:03, edited 1 time in total.
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rray
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Re: Kristinka Hair Gallery

Post by rray » 20 Jan 2010, 00:30

A hair bow... doing some hair rendering tests mainly right now
RayKrH003.jpg
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Hirazi Blue
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Re: Kristinka Hair Gallery

Post by Hirazi Blue » 20 Jan 2010, 11:22

Nice! :-bd
How long did it take to set that up?
...

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Re: Kristinka Hair Tests

Post by rray » 20 Jan 2010, 19:03

Hey Hirazi! Thanks for your reply.
The hair on the girl head is just a modified sample Anto provided, doesn't fit right with my model, note she still has hair coming out of her ears. The hairdo popped up more or less as an accident while fooling around with some parameters of the bend compound.
The Bow took me about 2 hours to set up, I created curves snapped to a polymesh form template I created, then used loft to create the Nurbs surface.
The new shading (see bow) took me ages to get right, I permanently got either too dark shadowing, or too much transparency in the hair.

Did finally figure out I could do it by using different shaders for surface ("hair renderer" node) and shadow ("constant" node with transparency) in the material render tree. So easy solution by had my head steaming for a few hours

( "Hair renderer" node has transparecy set to 0, while the constant node even allows to set a color for transparency! -- Having the same color as the hair's diffuse seems to work best )
RayKrH005_blond.jpg
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Re: Kristinka Hair Tests

Post by rray » 02 Feb 2010, 20:06

attempt #1 at creating my own hairstyle
RayKrH006.jpg
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I think I will put him in a little make shift scene tomorrow
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owei
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Re: Kristinka Hair Tests

Post by owei » 03 Feb 2010, 10:02

Very nice rray..! I like the style an the look of you renders very much..would be great, if you could give some more detail about how you did it, may be in a specific thread ,) Thanks for sharing your work!

best regards,
oliver

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Re: Kristinka Hair Tests

Post by rray » 07 Feb 2010, 01:04

Hey cheers, Oliver! Will do that, thanks for your interest!
,
Reinhard
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Re: Kristinka Hair Tests

Post by rray » 04 Mar 2010, 14:09

some more.

I hope I get to write something tutorial like in the coming weeks
RayKrH013.jpg
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Hirazi Blue
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Re: Kristinka Hair Tests

Post by Hirazi Blue » 04 Mar 2010, 14:31

If these are merely "tests", I'd love to see your "gallery" one day... :D
...

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Mathaeus
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Re: Kristinka Hair Tests

Post by Mathaeus » 05 Mar 2010, 02:15

Hi

So, now one in 'cosmetics ad' :) style. It's a common setup, two spots with volumic shadow maps, environment map, rasterizer, final gathering. I wouldn't be enough courageous to use this for sequences, but it seems to be OK for stills. Hair shader is XSI hair renderer, with a lot of gradients on it, for specular 'dots', transparency at roots...

Of course eyebrows and eyelashes are 'real' :) ones - compounds for these are still WIP, but I hope I'll have something usable in a few days.

Cheers

Image
The renderer "turtle" used by this scene, is not currently available. The "turtle" renderer will be used instead.

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Hirazi Blue
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Re: Kristinka Hair Tests

Post by Hirazi Blue » 05 Mar 2010, 09:23

Wow, simply wow! :-o :-bd
...

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rray
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Re: Kristinka Hair Tests

Post by rray » 05 Mar 2010, 13:08

look hot ! thanks for adding to the thread Anto

testing testing .. (I dont usually get past the testing stage ==)
"frozen" ( artsy alert :) )
RayKrH014.jpg
RayKrH014.jpg (86.87 KiB) Viewed 2878 times
light rig with 64 dir. lights with volume shadow maps
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Hirazi Blue
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Re: Kristinka Hair Tests

Post by Hirazi Blue » 05 Mar 2010, 13:39

Well, I am a sucker for artsy... ;;)
(and your last picture has been promoted to the si-gallery! ^:)^ )
...

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Re: Kristinka Hair Tests

Post by milanvasek » 05 Mar 2010, 17:12

nice! you have a lot of interesting stuff here. i have to try these tools too one day :)
Milan Vasek
ceramic artist & softimage fan
http://www.milanvasek.com

Ahmidou
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Re: Kristinka Hair Tests

Post by Ahmidou » 05 Mar 2010, 21:03

Hi Reinhard
Even if your pictures are tests they are looking really good!
I didn't had time to try Matheus compounds, but I know that actually segments size are in screen space?
Do you have any idea on how to deal with this and camera animations?
I know you can link it with camera distance, but it a trick and there's also the focal !

A

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Re: Kristinka Hair Tests

Post by rray » 06 Mar 2010, 10:19

Thanks! Yes why mental is using pixels for strand units I don't quite get either, probably needs fixing . I don't know any way either around this except the workarounds you mentioned.
Also what needs fixing that hair lit from the side hardly casts any shadows (The hair segment billboards stay oriented to the camera, not to the light when tracing the shadow)
..and that rasterizer bug that attributes sometimes get garbled with >10000 strands :o3
Cheers for putting the picture in the gallery Hirazi!
RayKrH015.jpg
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