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>Very impressive. Nevertheless, SSS (real or fake) doesn't work for me on
>human flesh (unless it's very very muted). It gives a waxy/varnished look.
Thanks..
Rene
(the old newbie)
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>? you mean the lighting when the photo was taken?
Yes !
>I really was wondering how you were getting the great bump textures.
a great photograph and a good graphics tablet !
>Which I am acutely embarrassed about. Certainly the intention was to
>continue that theme. That whole pursuit was intended to be a systematic
>technical investigation into each of these issues of modelling and
>texturing human form,... as well as a return to some of the issues of
>mind raised in Pierre Boulle's wonderful novel ;)
"La Planete des Singes"
> But I seem to be
>trapped in an infinite regression such that before I can do one thing I
>must first do something else. Before humans, chimps, before chimps,
>masks,...
I suppose you're walking through the grand Gallery of Evolution.
>Actually that project involved three main problems, modelling
>form, texturing flesh, and generating hair. Actually I am more or less
>still on the hair phase, except that the hair morphed into feathers.
>Like I said, before one thing, another. My interest is in the potential
>of using clipped shapes to get hair, rather than segmented tubes. A
>brief look at how it is going is attached. It is going SLOWLY!
Damn.. I look foreward to see your next hair/feathers experiments because
it is the second step for me, down exactly (is it the word for the small
hair on skin ?). I've tried with C.Colefax's macro but I'm partially
satisfied.
>My failure was absolute at the time, but your ear gives me
>hope.
I'm glad to restore hope..
>So I am ready to attack some of these things again.
Cool !
>But first, I must complete at least a respectable POVCOMP entry.
>Working at those large resolutions may be my undoing though!
Work well Jim !
And for me, it's time to go to bed.. my eyes are on the floor.;-)
Rene
(the old newbie)
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From: Thomas de Groot
Subject: Re: Human skin : SSS and faking method
Date: 8 Jan 2005 02:58:25
Message: <41df92a1@news.povray.org>
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"Rene Bui" <ren### [at] free fr> schreef in bericht
news:web.41dd778e422926ef5d5ac1850@news.povray.org...
> >Don't give up! (Kate Bush's or Pete Gabriel voice as you want)
> >I agree tweaking scattering media is not really a rest cure :/
>
> >Marc
>
> Thanks for the compassion.
> Oh, I luv Kate Bush !
>
I agree with Marc... about your work, AND about Kate Bush!!
Thomas
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From: Jaime Vives Piqueres
Subject: Re: Human skin : SSS with skull inside (50K)
Date: 8 Jan 2005 11:58:31
Message: <41e01137@news.povray.org>
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Rene Bui wrote:
> I would like to see more post about flesh in this newsgroup, it could be
> helpful for me or others. I went to Jaime's website, but he stop
> (temporarely) his skin experiments...
Well, thanks to your insistence I restarted the skin experiments
again (at the expense of my POVCOMP entry, but the experiment was
interesting enough).
I downloaded a skull from 3dcafe.com and imported it into Wings3D,
then merged the head and scaled and placed the skull inside. In the
POV-Ray scene I used the same media-SSS I was using, with a plain white
pigment for the skull inside. Here is the comparison attached (first
image with skull, the second hollow).
--
Jaime
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Attachments:
Download 'cabeza-sss-1.jpg' (24 KB)
Download 'cabeza-sss-1-no-skull.jpg' (25 KB)
Preview of image 'cabeza-sss-1.jpg'
![cabeza-sss-1.jpg](/povray.binaries.images/attachment/%3C41e01137%40news.povray.org%3E/cabeza-sss-1.jpg?preview=1)
Preview of image 'cabeza-sss-1-no-skull.jpg'
![cabeza-sss-1-no-skull.jpg](/povray.binaries.images/attachment/%3C41e01137%40news.povray.org%3E/cabeza-sss-1-no-skull.jpg?preview=1)
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>I agree with Marc... about your work, AND about Kate Bush!!
>Thomas
Thanks Thomas !
Rene
(the old newbie)
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> Well, thanks to your insistence I restarted the skin experiments
>again (at the expense of my POVCOMP entry, but the experiment was
>interesting enough).
>
>--
>Jaime
Super Wow ! Your experiment was very conclusive !
Really, it seems it works !!
I think It's MUCH better than all your/my flesh images.
What you get here is very encouraging in my opinion.
I can't wait to try this.
If I gave hope to Jim, you give me hope too !
But Povcomp first. So sorry for your entry.
Promise, I stop the thread. We will talk about it after the Povcomp
deadline.
Again, many thanks.
Rene
(the old newbie)
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Rene:
In my (humble) opinion, these look very good, especially considering the
rendering time.
Heck, if source were available, I'd use it! (imitation and flattery and all
..)
I think one reason that people say that skin is translucent, but then also
say any SSS attempts look too 'waxy' is that there is a huge difference
between real life and photo's, especially computer art.
In real life, I believe our eyes are something like 9kx9k resolution -so any
translucence has a few 'pixels' to show. It's small, but we see it, so we
know it's there.
When we look at a person in CGI, there aren't nearly enough pixels to show
this, so any SSS *visible* would look like too much.
In any event, my particular use isn't so much close ups, but I am trying to
do a POVComp image with a couple of people on a balcony, high inside a
'bubble city' on Mars. I was toying with the idea of having a woman
admiring the view, and a man next to her leaning over and 'admiring the
view' (different view <G>). If I do that, I would realy want a *good*
looking skin shader, and yours comes I think pretty close. I'm looking at
rendering times of 1+ days at 1600x1200 alone just for my city :( so I need
something fast, I think.
Does it look good in animations, or have you tried that yet?
== John ==
"Rene Bui" <ren### [at] free fr> wrote in message
news:web.41dcf90d422926ef9cc1eaf50@news.povray.org...
> #5 + ambient color
> #6 + reddish shadow_pigment to mimic translucent effect.
> #7 + light group => only skin and inner parts are concerned
> #8 + highlights
>
> Not perfect. Of course, the method could be improved.
> But very FAST render
>
> Rene
> (the old newbie)
>
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>In my (humble) opinion, these look very good, especially considering the
>rendering time.
>
>Heck, if source were available, I'd use it! (imitation and flattery and all
>..)
>
Thanks,
No problem, the source is in povray.text.scene-files
Adapt the color_map at your convenience.
>In any event, my particular use isn't so much close ups, but I am trying to
>do a POVComp image with a couple of people on a balcony, high inside a
>'bubble city' on Mars. I was toying with the idea of having a woman
>admiring the view, and a man next to her leaning over and 'admiring the
>view' (different view <G>). If I do that, I would realy want a *good*
>looking skin shader, and yours comes I think pretty close. I'm looking at
>rendering times of 1+ days at 1600x1200 alone just for my city :( so I need
>something fast, I think.
>
A couple of weeks before deadline ! Wooo , hurry up John ! ;-)
>Does it look good in animations, or have you tried that yet?
>
> == John ==
I don't know, never tried it yet..
Rene
(the old newbie)
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> A couple of weeks before deadline ! Wooo , hurry up John ! ;-)
heh
Yea, just what I need, another side track :)
>>Does it look good in animations, or have you tried that yet?
> I don't know, never tried it yet..
Well, no time for that by the end of the month, but I goofed up my people
for the last IRTC, so I may try and do better for the next. If I go that
route, I'll try and post some WIP's. (Hmm ... 'imposter' .. have to think
what that has to do with gigantic robot tanks)
I think this kind of texture work will look much better in animations as the
interplay of light on skin is revealed through movement, but we'll see.
== John ==
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> No problem, the source is in povray.text.scene-files
> Adapt the color_map at your convenience.
Hit send to quick forgot the important thing - THANK YOU!
== John ==
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