Author Topic: Discourse about the MATERIALS  (Read 24812 times)

2014-02-19, 21:44:15

Fibonacci

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Hey Folks,

I would like to ask the funs of the materials, please start the discourse about the Corona's materials setup.

If you have a really good material setup, or you have a question or observing please don't hasitate, just share with the forum.
I think I'm not alone, who really like the materials and shades.
And maybe this is a good starting point to make the Corona's Material Library. I beleive for the great viz you must to knows everything about the materials, shades, colors, and I think one of the most important...about the reflections!

Firts off al I'd like to share a good site, where you will find a good monography about the real materials.

This is the next:

http://www.neilblevins.com/cg_education/cg_education.htm

I really greatful for Neil Blevins for him site.

Cheers!

Anybody?
Holy Corona : the materials is the clue.

2014-02-19, 23:17:55
Reply #1

Juraj

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Sure :- ).

Lately, there seems to be a lot of interest in custom BRDF models, esp. one called GGX. Currently only as plugin shader for Vray, Vlado kind of promised they are looking into integrating it.
Seems to both make metal reflection behaviour realistic, but simplify the workflow of what currently constinutes blended layers when attempting metal reflections. Pretty interesting I would say.



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2014-02-19, 23:18:53
Reply #2

Fibonacci

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Here is the first shared material.

I tried to make water droplets now. I'll see how it's working...
« Last Edit: 2014-02-20, 08:59:24 by Fibonacchi »
Holy Corona : the materials is the clue.

2014-02-20, 02:39:29
Reply #3

agentdark45

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Sure :- ).

Lately, there seems to be a lot of interest in custom BRDF models, esp. one called GGX. Currently only as plugin shader for Vray, Vlado kind of promised they are looking into integrating it.
Seems to both make metal reflection behaviour realistic, but simplify the workflow of what currently constinutes blended layers when attempting metal reflections. Pretty interesting I would say.

[img width=626 height=622]http://www.shlyaev.com/images/stories/ggx/ggx_vs_the_rest.jpg[img]

http://www.shlyaev.com/rnd

Do WANT!
Vray who?

2014-02-20, 09:17:29
Reply #4

Fibonacci

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Well,

nice site and intresting stuffs. For me looks like the ggx already in the Corona.  In the raw render has a much more reflections for my eyes than VRay. For me was the problem with a VRay, all the time I seen...that's "just" CG. Not really correct reflections.

Opposite this in the Corona, the materials and shaders look like more reflected...more full on life. And I feel space on the pictures, but it's depand of PP.

Maybe two sliders should be good in Corona's Specular highlights options, which one able to changeing the setup between the Pong to Cook-Torrance. I mean on for the color's shader and another one for the blurry...Or is it not working like this ?  :)

And how's about the Abbey in Corona ? That's an really good option, because that's make absolutelly real glasses and crystals...
Holy Corona : the materials is the clue.

2014-02-20, 10:31:14
Reply #5

maru

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Would it be possible to control glossiness using a graph? It would look more or less like this:
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2014-02-20, 11:05:17
Reply #6

Ondra

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it is unfortunately not as easy as plotting a graph. But different BRDFs are possible.
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2014-02-20, 14:45:48
Reply #7

Fibonacci

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Would it be possible to control glossiness using a graph? It would look more or less like this:

It's sound good and rewarding... ;)
Holy Corona : the materials is the clue.

2014-02-20, 15:23:33
Reply #8

Fibonacci

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Hi,

I tried something, and I would like to share with the forum for put to the vote.

I made two leather renders in Corona, and there has only one difference between those.
One made with a normal gray bitmap in the reflection channel and another with center color of diffuse map. Other channels and setups still same....

Here is the resaults...what do you think, which one is the realistic reflection? :O


Thank you and let's gives your opinion...
Holy Corona : the materials is the clue.

2014-02-20, 15:55:09
Reply #9

johan belmans

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2014-02-20, 16:01:19
Reply #10

Alexp

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+1 for the first image

2014-02-20, 16:02:37
Reply #11

Fibonacci

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...and here I made a "corrected" gray reflection with changed the level and glossines...:)

Holy Corona : the materials is the clue.

2014-02-23, 20:01:53
Reply #12

Alex Abarca

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I vote for the first one GREY Reflections

2014-03-03, 21:19:39
Reply #13

Fibonacci

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Hi mates,

Here I would like to share my material library for my Nyári konyha scene.
I made in Corona V5, so this is not advanced setups, just basics. Originally I made in VRay with much advanced setups. 
I hope it's help for somebody else...

Any comments and observing are welcome.

Cheers!
Holy Corona : the materials is the clue.

2014-03-04, 14:09:59
Reply #14

Fibonacci

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Hi,

I wanted to share some good and important infos for the correct texturing...
Maybe this is new info for the fellows, maybe not, but I want to say: Thanks Mr. Austris ! :)

http://viscorbel.com/making-sense-of-textures-in-gamma-2-2-workflow/#comment-10094
Holy Corona : the materials is the clue.