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Kram1032
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Post by Kram1032 » Tue Jan 08, 2008 10:56 am

Interesting technique :)
Can you report the materials, then? :D

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drBouvierLeduc
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Post by drBouvierLeduc » Tue Jan 08, 2008 11:11 am

I'll post a sss-skin vs double-material comparison tomorrow when the renders get clear then (but so far BbB's technique looks good).

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Kram1032
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Post by Kram1032 » Tue Jan 08, 2008 11:14 am

don't forget the version SSSskin AND double mat ^^
I can't wait, to see it tomorrow, after school :)

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drBouvierLeduc
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Post by drBouvierLeduc » Wed Jan 09, 2008 12:14 am

So here are the results between different materials tests : beware, the differences are veeeery subtle ! But look carefully, you can see it.
Remember my goal was to get a porcelain material used in small hand-painted figurines.
So regarding what I'm trying to achieve, the best looking option I think is the "second sss skin".

The first skin is a plain white porcelain phong mat (well a blend of two phong mats as BbB hinted).
On top of that is a second skin, a sss medium blended with paintings.
The result is an insanely complicated multi-layered material, wich takes hours to clean !
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marionnette - materials.jpg
materials tests
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BbB
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Post by BbB » Wed Jan 09, 2008 4:37 am

The SSS Skin is amazing. Extremely convincing. But the thought of the render times makes my stomach hurt!

My idea about blending two phongs was based on copying this effect on the cheap. I.e. two layered materials with a slightly rough phong underneath (glossy reflections - exp. between 500-2000) and another phong (the coating, so to speak) on top with glass-like reflections (exp. of about 500.000).

Your SSS skin does just that but with three huge differences: It adds the tiny bit of scattering the coating would cause; it mimicks the slight translucency of porcelain; and the two skins give slightly offset reflections that are very noticeable on the smaller, sharper highlights.

In short: Great find!

PS: I wonder if it would be possible to fake the porcelain translucency by taking your diffuse map into photoshop, run a faint "diffuse glow" (or even "gaussian blur") filter, then mix this layer with the original diffuse map at 50 per cent...

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Kram1032
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Post by Kram1032 » Wed Jan 09, 2008 5:02 am

both, the SSS-skin and the two blended phongs look great :)
the third one looks strange, though. I think, the reflections are too sharp... Maybe, it's due to the lighting.

really well done! I like the softness of the SSS version :)

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5OnIt
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Post by 5OnIt » Wed Jan 09, 2008 7:24 am

Ya know Doc, you're killing us here without any tutorials from you. Couldn't you do even a small, simple one for this model or maybe your Coffee Puppets?

pwetty pweazze!

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drBouvierLeduc
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Post by drBouvierLeduc » Wed Jan 09, 2008 9:43 pm

Well I was afraid the render times would be huge, but that picture baked for 3 hours "only" (on a dual-core).

@5OnIt : A tutorial ? why not. There's no special techniques involved, it's more a question of spending time on textures, and blended materials (instead of using a single texture for the whole mesh). I'll try to make a quick overview of the workflow sometime.
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marionnette 01f.jpg
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Vanessa07
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Post by Vanessa07 » Wed Jan 09, 2008 10:42 pm

It's realistic day time :D :D

Sweet render, is that sss and phong.

How can you put one material over the other?with mesh or it's a blended material :?

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Post by BbB » Thu Jan 10, 2008 12:42 am

Sweet update. Is your grass also displaced or did you use the billboard technique from your tut? I'd also be interested in seeing your UVs and one of your weight maps as reference. Trying to wrap my head around your texture painting workflow.

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Kram1032
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Post by Kram1032 » Thu Jan 10, 2008 1:56 am

Amazing amazinger amazingest (I know, that these are wrong expressions)

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drBouvierLeduc
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Post by drBouvierLeduc » Thu Jan 10, 2008 6:25 am

thanks Kram !
(edit)@BbB : the grass is a real mesh instanced, wich Ctzn gave me. I think it's the same Radiance used in one of his architectural render.

Here's another one (not quite finished).
Attachments
marionnette 02a.jpg
marionnette 02a.jpg (110.11 KiB) Viewed 2013 times

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Kram1032
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Post by Kram1032 » Thu Jan 10, 2008 6:40 am

(but quite nice already again)

Omg, you and BbB, you two should meet somewhere and start a bigger render project together O.o

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drBouvierLeduc
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Post by drBouvierLeduc » Thu Jan 10, 2008 10:02 am

Latest update. The environment is provisional, obviously that ground doesn't fit with a 5cm tall puppet... I'll set the environment at the end, when all the puppets will be made (around 5 or 6 of them maybe).
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marionnette 02b.jpg
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BbB
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Post by BbB » Thu Jan 10, 2008 11:30 pm

That's beautiful Docteur. I'd be really curious to see your UVs. The texturing is stunning!
(Is the fan a diffuse transmitter/phong?)

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