All times are UTC - 5 hours

View unread posts It is currently Tue Sep 17, 2019 7:56 am

Reply to topic
Author Message
 Post subject: Sheep
PostPosted: Tue Feb 09, 2010 8:21 am 
Offline
Beta Tester
User avatar
I've been trying to create realistic fur for a sheep, and getting it to simulate believably, and these are my results so far.

There are some shadow artifacts on the simulation test, and the fur feels a tad light, but these are works in progress :)


Attachments:
sheep_simtest.mov [ 5.35 MiB | Viewed 21522 times ]
sheep_testpose.jpg

_________________
freelance animation, illustration, scripting, lego: http://www.superrune.com


Last edited by superrune on Tue Feb 09, 2010 9:15 am, edited 1 time in total.
Top
 Post subject: Re: Sheep
PostPosted: Tue Feb 09, 2010 8:26 am 
Offline
Beta Tester
User avatar
Beautiful work! Simply awesome.

Joe

_________________
Joseph R Saltzman
Managing Director
3DTutorial.com
Top
 Post subject: Re: Sheep
PostPosted: Tue Feb 09, 2010 11:05 pm 
Offline
Beta Tester
User avatar
WOW Awesome!! Can't wait to see more :P
Top
 Post subject: Re: Sheep
PostPosted: Wed Feb 10, 2010 1:44 am 
Offline
Beta Tester
User avatar
Superbb!! :ok:

_________________
______________________________________

http://www.anishmations.com/gallery.htm
Top
 Post subject: Re: Sheep
PostPosted: Wed Feb 10, 2010 3:15 am 
Offline
Beta Tester
User avatar
Great job. Love the animation. So lifelike....the hair that is. This ought to inspire a lot of frustrated hair and fur users.
Top
 Post subject: Re: Sheep
PostPosted: Wed Feb 10, 2010 8:35 am 
Offline
Beta Tester
User avatar
Holy Cow! or should I say Holy Sheep!

I think you just blew my mind! stunning work! :ok:

EDIT

How did you do the lighting? what are your settings, very natural. It looks like there is some GI bounce in there?

_________________
Lee Perry-Smith -Beta Tester

www.ir-ltd.net

triplegangers (3D Scans and Digital Captures)
Top
 Post subject: Re: Sheep
PostPosted: Wed Feb 10, 2010 10:47 am 
Offline
Beta Tester
User avatar
Thanks everyone :)

Lee: No GI, even though I wish I had. It's a basic three point setup, with a carefully colored spot coming from below.

_________________
freelance animation, illustration, scripting, lego: http://www.superrune.com
Top
 Post subject: Re: Sheep
PostPosted: Wed Feb 10, 2010 12:52 pm 
Offline
Beta Tester
User avatar
superrune wrote:
Thanks everyone :)

Lee: No GI, even though I wish I had. It's a basic three point setup, with a carefully colored spot coming from below.


Sweet trick! well it works great! :D

_________________
Lee Perry-Smith -Beta Tester

www.ir-ltd.net

triplegangers (3D Scans and Digital Captures)
Top
 Post subject: Re: Sheep
PostPosted: Fri Feb 12, 2010 9:25 am 
Offline
Beta Tester
User avatar
Here's an updated render of the simulation. The fur is a lot thicker now, and I love the weighty feel of this sim. It took some days to render though, V-Ray kept crashing on me (usually at night, when I wasn't looking!). I'm switching over to Brazil for the next version.

Attachment:
100212_sheep_simtest.mov [ 3.9 MiB | Viewed 21266 times ]


I'm having some jittery simulations on parts of the sheep. You can see it around the ear at the end. Cem, any suggestions to settings I could tweak to remove them? Here's a screengrab of the Sim-modifier:

Attachment:
simsettings.jpg

_________________
freelance animation, illustration, scripting, lego: http://www.superrune.com
Top
 Post subject: Re: Sheep
PostPosted: Fri Feb 12, 2010 9:37 am 
Offline
Site Admin
User avatar
superrune wrote:
I'm having some jittery simulations on parts of the sheep. You can see it around the ear at the end. Cem, any suggestions to settings I could tweak to remove them?

It seems like a collision problem. It appears that the ears are intersecting with your hair mesh volume. Try to avoid that.

Also, you don't really need collisions with the root object for this model. Turning it off might significantly improve simulation time and should get rid of that jittery motion around ears.

_________________
Cem Yuksel - Developer
Top
 Post subject: Re: Sheep
PostPosted: Fri Feb 12, 2010 10:38 am 
Offline
Beta Tester
User avatar
Thanks Cem, I will try that. The first version actually had no collisions, but still was jittery in places (you see it around the ears when the sheep is upside down). I will look at the mesh, and see if I can fix it.

_________________
freelance animation, illustration, scripting, lego: http://www.superrune.com
Top
 Post subject: Re: Sheep
PostPosted: Fri Feb 12, 2010 12:03 pm 
Offline
Beta Tester
User avatar
I noticed the hair mesh has a fair deal of self-intersections, will that affect simulation?

_________________
freelance animation, illustration, scripting, lego: http://www.superrune.com
Top
 Post subject: Re: Sheep
PostPosted: Fri Feb 12, 2010 12:12 pm 
Offline
Site Admin
User avatar
Self intersection of hair mesh is not such a big deal. It would affect the behavior of hair-hair interactions in the sense that hair-hair interactions wouldn't try to resolve self-intersections, if they exist in the un-simulated hair mesh.

Intersections of the hair mesh will colliding object, on the other hand, is a whole other ball game.

_________________
Cem Yuksel - Developer
Top
 Post subject: Re: Sheep
PostPosted: Fri Feb 12, 2010 12:18 pm 
Offline
Beta Tester
User avatar
It seems like I have to turn self-collisions back on. When he's on his back, the fur starts interpenetrating his tummy. Or perhaps I should create some simple collision objects instead...

_________________
freelance animation, illustration, scripting, lego: http://www.superrune.com
Top
 Post subject: Re: Sheep
PostPosted: Fri Feb 12, 2010 12:23 pm 
Offline
Site Admin
User avatar
Creating simple collision objects is always a good idea.

By the way, you can improve the collisions by increasing the "subdiv" parameter. It would make the collision computation slower, but more accurate.

_________________
Cem Yuksel - Developer
Top
 Post subject: Re: Sheep
PostPosted: Fri Feb 12, 2010 12:37 pm 
Offline
Beta Tester
User avatar
Great - will try that too.

_________________
freelance animation, illustration, scripting, lego: http://www.superrune.com
Top
Display posts from previous:  Sort by  
Reply to topic

All times are UTC - 5 hours


Who is online

Users browsing this forum: No registered users and 1 guest

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum
Search for:
cron
Powered by phpBB® Forum Software © phpBB Group