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Bad hair day ... !!

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  #1  
Old 08-06-2005, 02:06 PM
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Jiger Jiger is offline
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Bad hair day ... !!

Highly esteemed fellow Photoshop-ers !

Now, I've been around this place for some time now but yet haven't made any "fuzz" about it, so I guess it's time to do so. And, typicly, when I do I'm in bad need of all or any pointers to this hair problem of mine.

What I'm up to is making a 3D render for a perfume ad - alas, fictive and intended for my upcoming promo portfolio, but anyways...
What I've done so far is setting up the model in 3DS Max, lighted it whith 2 Area Lights and rendered it out as a Tiff with acompanying Alpha Channel.

Everything comes out just dandy - except for the rim of the hair cap.
Yes, I say hair cap since it is a modelled cap on top of the head with a transmapped texture ( a black-and-white bitmap driving the transparency channel to decide what parts are transparent and what parts are not - very much like an alpha ).

The problem can be seen in the attached image.
It doesn't realy look the way you would expect an all-back hairstyle to look, does it ..?
Partly the problem is the very dark areas "under" the hair ( kind of ) and partly it's the "flat" apperance of the "chunks" ( since it's basically a polygon model ).
What i do want is to make the hair look like hair.

Now, I've done every manipulation I could think of in Max to make it come out better - trust me - but this represents the best result of all the umpty-thirteen renders I've done ...

So - I "resorted" to getting it fixed up in Photoshop 7.1, right ?
Wrong !!
Well, not wrong per se, but I haven't come up with anything that actually does the very trick ... yet ....

What I've tried so far is every layer blending mode in the dropdown - including "blend if's", cloning, healing, patching, copy/paste bits and paint, paint in, draw new strands, use eraser with various brushes and opacities and dynamics and soforth, etc.. etc.. etc ....

I've even tried Flora's method to adress the very image with an enhanced and firm tone of voice, but it's definitly got this hearing problem ...

As I see it from where I stand now, I've got but a few options left to try.
One of them is to re-model the hair in Max until I get it to my liking. A tedious, time consuming and probably uncalled for task..
Another is to completely re-draw new hair in Photoshop (can be done very sucessfully in Photoshop) which will take me anything from 10 hours to eternity.
So before I end up a babbling idiot locked away at some asylum, I thought I'd seek council here with you good people.
I'm sure there is some (somewhat) simple solution I just haven't seen yet.
It wouldn't surprise me one bit if Flora came up with one of those Ta-da solutions that makes me whack my head repetedly in the monitor ..

Now, if anyone would like a slightly larger ( 1500x1440 and 375k ) image to have a go at, you can get it at:
GraceLarge.jpg

Should anyone want to tinker with the original Tiff you can send me a mail at:
webmaster@jiger.org
But mind you - it's a 4000 x 3000 at a staggering 6.4 mb even in LZW compression .. !!

Oh - btw - if anyone knows of any good method to paint skintones that preserves the underlying texture I'd be very happy to learn.
The "preserve texture" option in Brush settings doesn't quite seem to do it and I would very much like to keep the skin pore texture in certain parts of the model.

Thank you very much for your attention and sorry for a bit lenghty post.

-- Jiger --
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File Type: jpg Grace.jpg (89.0 KB, 103 views)
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  #2  
Old 08-06-2005, 05:06 PM
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Marthig Marthig is offline
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Bad hair day hehe !

Hi Jiger !

I didn't know about Flora's sound advice of addressing the image in a stern voice, would love to try that !

I have just dwld your jpg and intend to see what happens with the good'ol rubber stamp tool --unless you have already tried it and discarded as unsuitable-- and see what I can come up with.

Hope to have some results in a little while. I love these kind of challenges !

Regards - Martha
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  #3  
Old 08-06-2005, 06:56 PM
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Jiger Jiger is offline
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Hello Martha !

>
>I didn't know about Flora's sound advice of addressing the image in a stern voice, would love to try that !
>
Well, I don't think she ment that as an advice, really ... (and she is a bit reluctant to admit she does this, so don't tell anyone I told you, right ?).
In any ways, I can assure you it doesn't work.

>
>...what happens with the good'ol rubber stamp tool --unless you have already tried it and discarded as unsuitable--
>
As said, I've tried "everything" but for that does not discard anything or any idea. Could be that I've overseen something in the process of trial and - mostly - error.

The very problem is really not to get hair into the parts I want, but to make it look like the hair that's in the rendered image. To interact with the flow and texture of it without any noticable manipulations.
Well, you'll see what I mean as you go along with it.

Will be very excited to see what you come up with !

Thank you for your kind assistance, Martha !

-- Jiger --
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  #4  
Old 08-06-2005, 07:17 PM
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Cameraken Cameraken is offline
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Jiger

Welcome to RP

I don’t understand rendering but I do see the problem.
Does the background have to be white as it would be easier if it were Darker?
Can you accept any blurring or do you want to keep it sharp?

Ken
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  #5  
Old 08-06-2005, 08:22 PM
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Marthig Marthig is offline
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Better hair evening ?

Hi Jiger,
Ok about Flora, won't mention this to anyone (except of course two or three good friends )
I include here two results. In both cases I duplicated the background and worked mainly with the copy, the problem I found here is that when removing the yellow circles first had to fill in the spaces. Well in short I used the stamp tool and then had to resort to the smudge tool, with a special brush not a solid one. Then used the polygonal lasso to outline the part of the hair I wanted to keep (after smudging it looked like poor Grace had feathers instead of hair ) Managed to give it a more rounded shape.

Kept the selection and used in the background image, used "liberally" the stamp tool to give it a more solid background to the parts I worked on and also cover the lighter parts left by the yellow circles.

Once finished with that, made a copy of the file and on Grace 2 set the blending of the top layer to "pin light" and on Grace 5 to "lighten" both 100 % opacity.

Hope it helps ?

Show us the final result you get for your presentation pls

good luck !

Regards - Martha
Attached Images
File Type: jpg grace2.jpg (93.4 KB, 53 views)
File Type: jpg grace5.jpg (93.3 KB, 64 views)
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  #6  
Old 08-06-2005, 08:31 PM
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Jiger Jiger is offline
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Thank you, Cameraken !!

>
>Welcome to RP
>
Thank you very much !
Actually, I've been around here lurking for some time, but not participated in anything - until now ...

>
>I don’t understand rendering but I do see the problem.
>
No need to understand, really.
Rendering is the 3D way of producing the final image(-s), but as you can see there's still a need for postwork.
That brings us to Photoshop (for instance) which we both/all/most have in common. Only difference is a 3D image doesn't have filmgrain - unless put there intentionally or in post

>
>Does the background have to be white as it would be easier if it were Darker?
>
Unfortunately, yes. It has to be white to fit the concept of the (fictional) ad. It is ment to be a 4-colour offset print.
Advantage with the Tiff is that there's an Alpha (mask) which makes it possible to separate the model from the background, and that leaves some more options for post editing.

>
>Can you accept any blurring or do you want to keep it sharp?
>
Again, unfortunately - no, I can't accept any blurring.
Blurring, or softening, have been a sideeffect from many of the methods I've tried and it's a dead giveaway there has been some "tampering" done to the image - emidiately spotted.
You see, the original image is 4000 x 3000 pixels in 300 dpi (print res) so attention to minute detail is imperative.

Currently I'm trying to find a way to make the dark (black) areas "under" the hair become invisible (as in transparent) in hopes to be able to fill in missing peaces by re-using parts from the image.

No luck this far, tho ...

Thank you very much for having a go at it, Cameraken !
I really appreciate it !

-- Jiger --
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  #7  
Old 08-06-2005, 08:54 PM
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Jiger Jiger is offline
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To Marthig (Martha) !

>
>the problem I found here is that when removing the yellow circles first
>
God Lord, Martha. Did you work on the thumbnail .. ?
There was a link i my post to a 1500 x 1440 you could have used - without the yellow markings.
My God - you must have spent a whole lot of work just cloning the yellow's out to begin with ...

Yes, I understand what you've been doing and it is a workable method. I've tried something similar myself, but it also takes out the darker shades of the hair at the top - and if possible I want to keep it to make the model "stand out" from the background.
Never the less I'm very greatful for your contribution to solving this problem.

>
>Show us the final result you get for your presentation pls
>
If I get this thing floating the way I intend I sure will.
Also, I'll provide a description of what I did ( if for nothing else, so someone can tell me there was a much easier way to do it ... ).
If you read my answer to Cameraken you'll know what I'm currently up to with trying.

Thank you very much for your contribution, Martha !!

-- Jiger --
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  #8  
Old 08-06-2005, 09:09 PM
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Marthig Marthig is offline
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Didn't realize there was a larger image I could have worked with duhh!!

What I am sorry about is that I could not give you an easier solution. Though I wonder what would happen if you use the PS "replace color" option ? But then, perhaps it is included in the trial and (mostly) error ones ?

Good luck again Jiger !

Regards - Martha
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  #9  
Old 08-06-2005, 11:05 PM
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Craig Walters Craig Walters is offline
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hmm, been a while since i worked with 3d models and alpha channels as applied to such. in my enclosed image, the blue is one of the problems and the green is the other problem. a simple clone could fix both...if i understand the problem correctly. if this image is taken from a 3d model, then i'd say the first problem, the blue, is a polygon issue. it's sitting up too high and isnt flat enough. the other is the green; it's an unnatural line lined with a black line. you've got a lot of these 'perfect' lines along the whole top of the hair line. they make nice arcs, but dont look right.

as for this part:
Quote:
Currently I'm trying to find a way to make the dark (black) areas "under" the hair become invisible (as in transparent) in hopes to be able to fill in missing peaces by re-using parts from the image.
i believe what you want is a mask from luminosity, invert it so the dark areas are white mask areas. use the replacer tool to change the black to white or any other shade you want.

and for your other question in your first post about painting skin tones, see nancyj's response is this thread: http://www.retouchpro.com/forums/critiques/11212-some-retouching.html

Craig
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File Type: jpg 3dhair-1-k-1.jpg (96.4 KB, 52 views)
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  #10  
Old 08-06-2005, 11:19 PM
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Panpan Panpan is offline
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I thought it would be a simple defringing; take out the white matte and then the black in and around the hair.

But the white around the model is not white; it's antialiased white. Can you turn that feature off? There's also a black drop-shadow on the right. The black in the hair is nicely shaded; that's a problem when trying to delete it.

Ah well, in a few years we'll have the cpu power to model individual hairs. In the mean time, can you defringe the hair texture so those edge hairs are distinct before importing the "cap" of hair?

Pierre
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