SSS on a tire?

[k-arts]

Hi all,

i found this tire on the net. And i thought it has a funny kind of reflection on it. But it also could be some subsurface action.



Has anyone any idea how to get some kind of a material/shader like that?


cheers

Lisa

[mike.edel]

doesn't look like sss to me
more like burned out bright areas due to limited dynamic range
the rubber reflects the bright environment quite a bit
i'd try a 'normal' material with a fitting ior

[Morbid Angel]

ahh rubber is one of the most complex mats. It can be glossy and reflective on one angle and completely non reflective in the other. I think detailed references must be taken for study of tire before creating a material. Most defenently it has fresnel, I would probably paint a glossyness map and a dirt map (not the ao) which would blend in the fall off map for reflection and glossiness and something similar for the diffuse slot.

[DaForce]

that image you have posted is either edited or shot in a studio..hence the white reflective floor.

I would fine a more day to day photo and then study it.

[k-arts]

it actually was taken in a studio.

the floor is not reflective. it is a light source.

isn't there something like a rubber material that i can work with? i mean something where i can understand the parts used for it? like fresnel reflections and stuff?

cheers

[Morbid Angel]

I dont have one yet.

[DaForce]

If the floor isnt reflective then why can i see the tyre tread reflecting on the floor?

[k-arts]

ok, there is a tiny bit of reflection on the glass that covers the light source.

my bad

[mmikee]

Check this out.....http://www.chaosgroup.com/forum/phpB...ic.php?t=13647

[k-arts]

posted there already but thx