KeyShot Forum

Technical discussions => Materials => Topic started by: fario on November 30, 2011, 12:38:50 AM

Title: J12
Post by: fario on November 30, 2011, 12:38:50 AM
hello all,

I'd like to make a rendering of the Chanel J12 watch in white ceramic.

I would love to have your opinion on the matter: white ceramic.

It's very difficult to set, because there are translucency and a metallic reflect on the surface.

The translucent material is the best way to get there?

Thank you for your help.
Title: Re: J12
Post by: jhiker on November 30, 2011, 03:42:38 AM
Have you tried 'porcelain' ?
Title: Re: J12
Post by: fario on November 30, 2011, 05:01:45 AM
yes, but not translucent effect in 'porcelain'.

the material is similar to a human tooth

Here is another example quite satisfactory.

What do you think?

Cordially.
Title: Re: J12
Post by: PhilippeV8 on November 30, 2011, 05:15:19 AM
it looks quite gray-ish ...

is this url any help ?

http://www.keyshot.com/keyshot/quicktips/white_materials.html
Title: Re: J12
Post by: fario on November 30, 2011, 05:26:39 AM
oh!

many Thanks Phil.

like this?

Antoine
Title: Re: J12
Post by: PhilippeV8 on November 30, 2011, 05:52:43 AM
that's already looking mutch mutch better !!
Title: Re: J12
Post by: fario on November 30, 2011, 06:02:06 AM
by cons ...

it's super difficult to balance, for a watch, the white of the case body to the outside and inside of the white dial under the glass and get the same quality of whiteness.

gamma is extra for case body in ceramic, but destroys the quality of the white dial under glass.
Title: Re: J12
Post by: fario on December 14, 2011, 03:30:59 AM
Hello,

I'm finally at the end of my research on the rendering of white materials in the environment watchmaking.
The problem of white diamonds have also been resolved.

The secret is the right balance of:
1 - "gamma"
2 - brightness "settings" and "environment"

My hdri used is the "startup"

The challenge when rendering white materials is the bad effect of "burnt" we get quite often. Fix this without interfering with other materials is quite difficult.

For white diamonds, in general they respond better with a hdri "typical", but what hdri is oft not good for other subjects...
As I have not made a postproduction, I had to find the right balance.

The white diamonds have also an effect of iridescent, fire colors. So I use the extraordinary effect of Keyshot "ABBE" to color them.

The search for the material "ceramic white" was quite long, because the parameters are subtle translucency.

Also in watchmaking, there is also a challenge to make the same quality of white objects under a sapphire crystal and those outside.

---

Frankly, now that I discovered Keyshot, my perspectives of communication will be much more convincing.

I congratulate you also for its excellent ergonomics.
Since I teach CAD, in the future I can recommend this product to my students.

It only remains for me to be able to pay me the PRO version:)

Long live this wonderful software.

And thank you to users for their valuable assistance.

Cordially.

Antoine
Title: Re: J12
Post by: PhilippeV8 on December 15, 2011, 01:54:21 AM
Perfect  :D
Title: Re: J12
Post by: Imz on January 31, 2012, 09:51:50 AM
Awesome- thanks for posting.