Lighting Challenge #3: Hairy Hare

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  04 April 2006
Lighting Challenge #3: Hairy Hare

Lighting Challenge #3 is on-line! It consists of a rabbit and a terrain model. Models are available for download in both NURBS and polygonal versions here:

IGES
OBJ

In professional lighting work, a lot of projects involve hair, fur, or vegetation, and the lighting process works somewhat differently than if you only needed to light smooth, bald things. The goal of this challenge is to add hair or fur to cover the rabbit and the ground (for the ground it would be grass and vegetation), and then show how well you can light and render this scene. You can use any software you want. It can be any season, weather, time, or mood.

Edit: This is an old challenge now. This thread is being archived. If you scroll down to the Challenge #3 section of the downloads page, you'll see that the models can still be downloaded for your tests, and also that a gallery has been made of top entries.

-jeremy
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Jeremy Birn
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Last edited by jojo1975 : 04 April 2015 at 04:45 PM.
 
  04 April 2006
Heh, I thought the challenges got cancelled, glad you just moved it in the right place!

Cant wait to get my hands on the bunny!
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  04 April 2006
Those challenges are very interesting, thnax for bringing us this opportunity to practice guys !

I will try this one if i have time, i need to practice fur for my Journey so i will start here
 
  04 April 2006
Cool, another challenge to keep us all busy!
Good luck everyone.

Dan W.
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  04 April 2006
oh yeah! count me in...im excited...
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Herbert "Corn" Agudera

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  04 April 2006
Great idea for a challenge, I'm in. I just finished readin Jeremy's book (Which was brilliant) and i'm ready to put some of that theory into practice. Two cyphers on the one challenge, kinda scary.
 
  04 April 2006
Originally Posted by Cypher666: Two cyphers on the one challenge, kinda scary.


haha, well let's see if our fur engine is bugging or no
 
  04 April 2006
well i'm new in this particulary part of forum.. but i'll participe too..
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  04 April 2006
I will give it a shot. I tried to do FXWARS challenges, and even though I love effects, I just didn't have time. This however, I can do pretty well. Gotta love fur. Now the question remains.... Maya render, or Renderman??? hmm....
 
  04 April 2006
hey nice idea... thanks for this challenge...
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  04 April 2006
Here's my attempt. I would like to have rendered in mental ray, but some of the fur attribute maps seemd not to work in mr, so it's rendered with Maya Software renderer. To say this has been a learning experience would be such an understatement.... It's so much much work, but it's so very cool.
-Paul

 
  04 April 2006
Thanks Jeremy for all inputs. You are right about the white FUR, I've kinda lost control on that areas. I'll try to fix it later with probably an additional pass of the flower's translucency. For now here are the breakdowns as promised:
First I have separated the scene into 3 layers: the close grass and flowers, the rabbit and the ground with the rest of vegetation. All rendered several times in several passes.



Then I've used a Directional Light representing the Sun here, castig Shadows using Detailed Shadow Maps in Mental Ray.


Then as a Fill -Ambient lighting I used several lights.


I have no clue why I've got some white spots on the rabbit so I rendered it again with shadowing using new lights set:


I liked the idea so I added another pass as back lighting for the rabbit:


I've thought also to render the highlight spot on the its eye alone, and another one for the reflection and a last to get some translucency on the ears. All composed in here:


Finally I've got the idea to render an AO pass(as it's in fashion these days). To get contact shadows for everything.. hmm it's not that slow as I excpected.


It was a great and tough exercise honestly !!
Enjoy everyone.
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  04 April 2006
Update:
I added a slight blur for a DOF effect. I couldn't match the exact colors as the first one because I did the second compositing in Photoshop while the 1st one was done in Combustion.
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Lazhar Rekik
 
  04 April 2006
Just having some fun


Last edited by michael-fd : 04 April 2006 at 10:22 PM.
 
  04 April 2006
Originally Posted by michael_fd: Just having some fun



Wonderful! It looks like you posted a painting.

The rabbits are a bit small so I can't say much about the fur, but that backdrop with the sun there could really motivate a strong sense that everything is back-lit. The grass, the rabbits' ears, anything that can show translucency or rim light, could be getting some in a scene like that. (I wonder about how blown-out the sun is in the background, too, if a little more color and detail worked into the blown area would complete the painterly look...)

Again, great job anyway.

-jeremy
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