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Kerkythea Rendering System • View topic - Patrick's layer conflict ?
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Patrick's layer conflict ?

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<<

dtrarch

KT-Senior

Posts: 85

Joined: Wed Jul 06, 2005 1:39 pm

Location: USA

Post Thu Mar 01, 2007 12:54 am

Patrick's layer conflict ?

Hello Patrick :D

Some clarification please.
Your tutorial seems to say that
the sum of diffuse and specular
for materials must = 1.0
(layered as well)

When I looked at your plastic set
which used layered Matte/Phong (2 layers)
one had diffuse at 1.000
and the other had specular at 1.000
Sum of S & D = 2.000

What am I missing please.?? :shock:

Got into this trying to create a glass with
a mirror finish that would reflect but also
have transparency.

NOT !!!

Cheers

Dave
<<

patricks

KT-Team
KT-Team

Posts: 3209

Joined: Mon Nov 14, 2005 2:39 am

Location: Palma de Mallorca / Spain

Post Thu Mar 01, 2007 1:11 am

Hi dtrarch

KT2007 have new features and that's why things are going to be a bit different then with the older KT versions ( that's why i also removed my older material packs )

the 1.000 rule still stands :!: but now KT2007 got a new feature that helps us with the 1.000 rule ( energy conservation )

if you left click on the first [Layered Material] , you will see that there is a new window with two "weights" ..... here is where we control how much of each material will contribute to the final material :wink: ( the weight is no longer controlled in the material panel ..... it is now controlled in the weight panel of the [Layered Material] )

you will see that i am using the "Procedural Fresnel" in the Layered weight ( the new KT2007 feature) ..... by changing the low and high color and giving the same IOR value in both weights ( diffuse and specular weights) ..... KT will automatically calculate the correct weight for diffuse and specular ...... when you analyse both Procedural Fresnel weights , you will see that for the diffuse channel the low and high color are changed , this is very important because the diffuse have to be the invers of the specular ...... more to come in the Manual :wink:

Greetings Patrick
Last edited by patricks on Thu Mar 01, 2007 8:44 am, edited 1 time in total.
<<

dtrarch

KT-Senior

Posts: 85

Joined: Wed Jul 06, 2005 1:39 pm

Location: USA

Post Thu Mar 01, 2007 5:08 am

Thank you

Patrick

Thanks so very much for your detailed reply.
The depth for materials available in K is very new to me and
the info you have sent will be a big help to us all I am sure. :idea:

You are really a good sport to spend so much time with
beginners as well at the pro K people.

Very generous. :lol:

Dave R#2

Inside joke with the other Dave R
<<

notareal

KT-Team
KT-Team

Posts: 4211

Joined: Fri Oct 27, 2006 7:27 am

Location: Finland

Post Thu Mar 01, 2007 8:14 am


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