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Poser - OFFICIAL F.A.Q (Last Updated: 2024 Nov 24 8:11 pm)



Subject: Skin color correction according to light


xpdev ( ) posted Tue, 15 September 2015 at 7:37 AM · edited Mon, 25 November 2024 at 6:10 AM

You don't care about general resolution, the trouble is on skin color e not on rendering quality.

All render lights setting are the same on better quality, low quality is only for fast test.

This two rendering are just to show the main scene, which seems (to me) with a good general illumination. (resolution setting is better then those following for skin tests, but not the best possible, so don't say any word :) )

A.jpg

B.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Tue, 15 September 2015 at 7:41 AM · edited Tue, 15 September 2015 at 8:11 AM

Content Advisory! This message contains nudity

now the matter:

Add a V4 character

Main.jpg

This is character's skin V4

Skin.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Tue, 15 September 2015 at 7:44 AM · edited Tue, 15 September 2015 at 8:12 AM

Content Advisory! This message contains nudity

Without no manipulation, this the rendering result, using Gamma Correction to 2.2

Of course skin needs work.

**I have my way of work, but i don't tell you what is, this is because often i get horrible results. **

So i ask to you, what is the first step to correct skin ?

Thanks.

Ps i have EZSKIN 2.1.1 if it may be useful

V4.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Tue, 15 September 2015 at 7:54 AM

I forgot to set "Nudity alert", may someone fix it ?

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Tue, 15 September 2015 at 8:00 AM

All rendering are made with Gamma Correction to 2.2

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


Boni ( ) posted Tue, 15 September 2015 at 8:13 AM

Nudity fixed, no problem. 😄 I really like what you have going here!

Boni



"Be Hero to Yourself" -- Peter Tork


Boni ( ) posted Tue, 15 September 2015 at 8:15 AM

Now as far as your issue with the skin. If you could describe what you are having difficulty with ... I have a visual impairment so I just might not see it.

Boni



"Be Hero to Yourself" -- Peter Tork


xpdev ( ) posted Tue, 15 September 2015 at 8:33 AM · edited Tue, 15 September 2015 at 8:36 AM

Boni

you think skin color is correct ?

Seems not to me...

if it is correct i think i'll change my hobby

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


Boni ( ) posted Tue, 15 September 2015 at 8:59 AM

Keep in mind, I am probably not seeing what you are ... I am missing something. But I can suggest that since you are using EZskin2, you might want to adjust some of the SSS settings and see if that helps. Also remember that the skin is taking on the color of the room and lights with the IDL settings. It seems true to the skin map ... but another suggestion is to desaturate the map slightly. It's a trick someone told me a few years ago. Worth a try.

Boni



"Be Hero to Yourself" -- Peter Tork


xpdev ( ) posted Tue, 15 September 2015 at 9:22 AM

All color lights are set to white.

I think skin color is too much pink and not seems real.

At this moment i'm not using EzSkin, i want to concentrate to skin color, to make it as real as possible, only the color, may be using Ezskin.

I'm looking help for this at this moment, then we'll worry about reflection etc.

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


ironsoul ( ) posted Tue, 15 September 2015 at 10:20 AM

Depends on what your expectation is, pigmentation can vary greatly in people and it will have an impact on how the different layers of skin scatter light. I find adding a small amount of green to the diffuse root node can lessen the pink effect but maybe I just know a lot of people with jaundice.



bagginsbill ( ) posted Tue, 15 September 2015 at 1:02 PM

You have too much light or too much diffuse Value on the skin. The result is that the right side is very over exposed. When the red stops increasing, the green and blue continue getting brighter and the skin appears yellow. In the region approaching that, the apparent change in hue makes it look excessively pink.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)


Miss Nancy ( ) posted Tue, 15 September 2015 at 1:15 PM

decrease IDL intensity from 1.0 to 0.65 or 0.8 and see which looks better.



EldritchCellar ( ) posted Tue, 15 September 2015 at 1:58 PM

Using lali there xpdev? A no brainer on my part but I agree with BB and Miss Nancy. My first thought was that the diffuse reflectivity is the culprit.



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Mudbox 2022, Adobe PS CC, Poser Pro 11.3, Blender 2.9, Wings3D 2.2.5


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Boni ( ) posted Tue, 15 September 2015 at 3:16 PM · edited Tue, 15 September 2015 at 3:16 PM

Here is an added bonus, it's made for a real camera but still applies:

Free_portrait_lighting_poster.jpg

Boni



"Be Hero to Yourself" -- Peter Tork


Taren421 ( ) posted Tue, 15 September 2015 at 9:10 PM

Boni posted at 9:08PM Tue, 15 September 2015 - #4228527

Here is an added bonus, it's made for a real camera but still applies:

That's a wonderful reference Boni, thank you! I'm going to get a lot of use out of that, not only within Poser, but with Reality too.



Poser Pro 2012 SR3 on Win10 x64 w/Reality.
Poser Display Units = inches.

 


ironsoul ( ) posted Tue, 15 September 2015 at 11:20 PM

Why do burnt out textures become more yellow? Intuitively adding more white light should add the same value to both blue and green channels but this suggests the green component is more sensitive to light changes than the blue.



xpdev ( ) posted Wed, 16 September 2015 at 1:29 AM · edited Wed, 16 September 2015 at 1:29 AM

Thanks to everybody

bagginsbill posted at 7:55AM Wed, 16 September 2015 - #4228500

You have too much light or too much diffuse Value on the skin. The result is that the right side is very over exposed. When the red stops increasing, the green and blue continue getting brighter and the skin appears yellow. In the region approaching that, the apparent change in hue makes it look excessively pink.

BB, yes you are right (like always) but skin color doesn't depends on the scene, in this scene there is the same V4.

Illumination with your sphere (all default settings ) and 1 infinite light set to 85%)

Skin is always too much pink, at least this for me.

V4_2.jpg

Skins.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 1:37 AM

When i have this color trouble with skin, i work with EZSkin

in "Skin Tab" i play on color until i find a color skin that i like

In this case i set RGB color on 219/255/255 (in this case don't care about reflexion etc.) This color set works to correct for a lot of skins, but not always, sometime i'm not able to find the right start color to correct skin and i have to give up to use a skin.

Sets.jpg

Here is the result.

V4_1.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 1:39 AM · edited Wed, 16 September 2015 at 1:40 AM

and this is a comparison of the skins.

The one on the right seems to me much more realistic. (ONLY consider the color, no reflection, gloss etc.).

V4_1_2.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 1:58 AM

Now the first stage with two different skins.

"After we return to the problem of too much light on the right side as shown by BB, using the skin with the correct color from me."

V4.jpg

V4_Corr.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 2:01 AM

A prayer.

English is NOT my native language, when you say something, try to be as simple as possible, not easy for me to understand something I do not know a language I do not speak very well.

Thank you very much.

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


Latexluv ( ) posted Wed, 16 September 2015 at 2:09 AM

Just an opinion here, but the skin on the right side of the above image is terrible. That is a good texture map there (which one is it please?) Most texture maps are too orange (as in Fake Tanner Orange!!!!), or a bizarre yellowish greenish color. I do a lot of correcting of skin maps before I used them for render. And yes, this is a gripe of mine, the orange skin. I was once a cosmetic manager for a drug store chain and every summer I was required to push sunless tanners and all these products do is turn the skin orange. It's not a good color. I have had to mess with colors on so many maps to get close to the color of the map you referenced!

"A lonely climber walks a tightrope to where dreams are born and never die!" - Billy Thorpe, song: Edge of Madness, album: East of Eden's Gate

Weapons of choice:

Poser Pro 2012, SR2, Paintshop Pro 8

 

 


xpdev ( ) posted Wed, 16 September 2015 at 2:48 AM

So Latexluv, you think the skin color on the left side is better then that on right side ?

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


rokket ( ) posted Wed, 16 September 2015 at 3:03 AM · edited Wed, 16 September 2015 at 3:04 AM

example.jpg

I would find examples of nice skin tones and try to copy them. I use this picture a lot when I am trying to fix the 'orange' skin.

If I had a nickle for ever time a woman told me to get lost, I could buy Manhattan.


tonyvilters ( ) posted Wed, 16 September 2015 at 3:34 AM

Ach, here we come with that blue again.....

  1. No surface has a diffuse value of 1.000 => For skin use 0.8 to 0.85
  2. You are adding the" pink look" with the light blue coming from your Blinn_2
  3. For skin color variation, add a HSV node between the Diffuse texture and and Diffuse_Color


xpdev ( ) posted Wed, 16 September 2015 at 4:26 AM

tonyvilters posted at 11:24AM Wed, 16 September 2015 - #4228632

Ach, here we come with that blue again.....

  1. No surface has a diffuse value of 1.000 => For skin use 0.8 to 0.85
  2. You are adding the" pink look" with the light blue coming from your Blinn_2
  3. For skin color variation, add a HSV node between the Diffuse texture and and Diffuse_Color

Please, do you refer to this one ?

V4_2.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 4:52 AM

Please, take care that test and skin comparison rendering are made with these settings:

The rendering above is made with skin as it comes, i have modified absolutely nothing in skin, not even gamma correction.

Render_Sett.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 4:59 AM

This new test is made changing ONLY in Torso Skin the Blinn_2 color to white.

I don't see great differences, always too much pink

V4_Test_Blinn_2.jpg

Skins_2.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 5:01 AM · edited Wed, 16 September 2015 at 5:04 AM

tonyvilters posted at 12:00PM Wed, 16 September 2015 - #4228632

  1. For skin color variation, add a HSV node between the Diffuse texture and and Diffuse_Color

This is what do EzSkin (as i have made above to have Skin modified @4228624)

About my skin variation Latexluv wrote

Latexluv posted at 12:02PM Wed, 16 September 2015 - #4228628

Just an opinion here, but the skin on the right side of the above image is terrible.

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 5:04 AM

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 6:33 AM · edited Wed, 16 September 2015 at 6:37 AM

I have made some corrections.

Skin value set to 0.85 With EZSkin added a little fresh to skin and HSV node with color set to 232/255/255

Now skin color is more realistic ?

V4_Mod_To_0.85.jpg

Skins_3.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


tonyvilters ( ) posted Wed, 16 September 2015 at 7:07 AM · edited Wed, 16 September 2015 at 7:11 AM

I have absolutely NO idea who makes or distributes these material room setups, but EVEYTHING between the Diffuse texture and the Posersurface has to go.

In the render settings? Is there a mirror somewhere? Glass? No? Then Raytrace bounces can stay at 1. Uncheck Irradiance Caching. Min Shading Rate => Set to 1 for draft, and 0/5 for medium, and 0.2 for extra sharp renders. Bucket size at 32 is the best default. (You can use 64, 128 for single naked figures) But lower bucket size when the scene fills up. Post filter size set at 3 and Filter Type at Sync. Always render with IDL to ON and GC at 2.2. That part is good.

But for IDL to work properly, you have to have a filled scene. The extra diffuse light has to come from somewhere. When you have an empty scene, with only a naked figure, there is no "extra" diffuse light for IDL to work as it should.

Actually, a figure skin is SUPER simple to set up and requires only a few basic nodes. (all what you see in the Mat room screengrab above is faking, and all that faking has to go out when you render with IDL.)

The rest of the light has to come from the rest of the scene. (as it does in the real world) => That is DIFFUSED light. => That is what we see in the real world.

The last render does not look like skin. It looks like wax.


tonyvilters ( ) posted Wed, 16 September 2015 at 7:22 AM

Like you see in rokkets example. Skin that is in the direct light is almost white, and it darkens and deepens with shadowing and when IDL takes over from the direct light. Oh, and for outside renders? There is only ONE sun out there. A single Infinite light is all the light you will ever need. And use BB's sphere, and fill the scene to create the IDL.


xpdev ( ) posted Wed, 16 September 2015 at 8:15 AM

tonyvilters

I'm away from Pc at this time due of work.

Tomorrow i'll do some test following your words.

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Wed, 16 September 2015 at 9:24 AM

I have absolutely NO idea who makes or distributes these material room setups, but EVEYTHING between the Diffuse texture and the Posersurface has to go.

I'm reading and reading again your words, not sure i understood what you mean.

Can you get my material room setup picture and delete unnecessary nodes ?

I´m starting to think that all i know about IDL rendering is totally wrong.

Thanks

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


Miss Nancy ( ) posted Wed, 16 September 2015 at 12:24 PM · edited Wed, 16 September 2015 at 12:25 PM

yes, more realistic now that both diffuse and specular channels are set to zero (0). that was why diffuse colour was too saturated.

in advanced skin shaders, colour map is plugged into diffuse channel, but diffuse value is zero, so that it shows in preview mode how skin will look in render.



xpdev ( ) posted Wed, 16 September 2015 at 1:14 PM

Hi miss Nancy

I'm a bit confused now.

I don't understand if my skin setting has a lot of unnecessary nodes or i don't understood what tonyvilters means.

The language problem.

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


Miss Nancy ( ) posted Wed, 16 September 2015 at 5:26 PM · edited Wed, 16 September 2015 at 5:29 PM

vilters was referring to the nodes attached to diffuse channel. you can delete the connections to the diffuse channel and it will look more realistic when rendered.

however, if you simply set diffuse channel to zero, then that has the same effect on render, whilst allowing for better preview of texture prior to rendering.

if the texture you used is EZSkin 2 or later, then don't delete any of those nodes, as they're necessary for alt diffuse and alt specular in PP2014 and earlier. PP2016 will simplify this so that you won't need all those nodes with the new PBR renderer.



xpdev ( ) posted Thu, 17 September 2015 at 2:19 AM

First thing, thanks to everyone for your time and suggestions

Sorry, but i need to understand, at this moment confusion is more than ever.

I'm using Poser Pro 2014 and EzSkin 2.1.1, IDL and GC to 2.2 this is so for all my renderings, unless otherwise specified from me

having said that, I do not take into account the proposed amendments to material nodes (thank you tonyvilters) and i follow what say Miss Nacy for material nodes.

Miss Nancy posted at 8:43AM Thu, 17 September 2015 - #4228808

if the texture you used is EZSkin 2 or later, then don't delete any of those nodes, as they're necessary for alt diffuse and alt specular in PP2014 and earlier.

tonyvilters, thanks for rendering suggestion.

Now. This scene has nothing else than V4, one infinite light and BB Sphere with default settings (for diffuse light)

What is wrong in this rendering, in this skin color (seems like wax ?) and how can i do a better rendering ?

It seems to me like a good rendering... or i really going crazy and i need to go to elsewhere to spend my free time ?

Best_Last_Vilter.jpg

Skins_3.jpg

Render_Sett_2.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Thu, 17 September 2015 at 2:21 AM

Miss Nancy posted at 9:20AM Thu, 17 September 2015 - #4228808

PP2016 will simplify this so that you won't need all those nodes with the new PBR renderer.

i have fear of terrible rendering times and not really good results.

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Thu, 17 September 2015 at 2:53 AM

And another thing

For skin color variation, i have manipulate the Diffuse_Color in HSV, setting it in EzSkin Skin Tab (see picture lower)

I started from color 255/255/255 and lowered to 232/255/255 and the result is the rendering above.

Why i started from 255/255/255 ?

Because manipulate this color gives to "my eyes" the best rendering skin color result.

But i ask to myself if there is another way (the correct way or a starting point ) to choose the color to start from.

may be analysing the original skin color or something else?

Sets.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


Latexluv ( ) posted Thu, 17 September 2015 at 3:11 AM

My opinion here, but I wouldn't use blue color in the diffuse. Just use white. Use of that color in the diffuse channel was an old cheat in P6 and P7.

"A lonely climber walks a tightrope to where dreams are born and never die!" - Billy Thorpe, song: Edge of Madness, album: East of Eden's Gate

Weapons of choice:

Poser Pro 2012, SR2, Paintshop Pro 8

 

 


xpdev ( ) posted Thu, 17 September 2015 at 3:16 AM

Latexluv

you advise me a variation of the color white?

Give me a few minutes and i'll post renders tests.

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


xpdev ( ) posted Thu, 17 September 2015 at 3:28 AM · edited Thu, 17 September 2015 at 3:30 AM

This rendering is with HSV color set to 232-255-255

The second is with HSV color set to pure white 255-255-255

The second still seems not really real skin to me, too much pink !!!

Best_Last_Vilter.jpg

test_A.jpg

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


Latexluv ( ) posted Thu, 17 September 2015 at 3:58 AM

I guess each to their own. I have worked hard on maps to get the pink in your second render. I'm rendering a pic, will post. It's a custom skin that at one time I thought to sell in the market place.

"A lonely climber walks a tightrope to where dreams are born and never die!" - Billy Thorpe, song: Edge of Madness, album: East of Eden's Gate

Weapons of choice:

Poser Pro 2012, SR2, Paintshop Pro 8

 

 


Latexluv ( ) posted Thu, 17 September 2015 at 4:02 AM

Content Advisory! This message contains nudity

Okay, here we go. The skin is not exactly the color I wanted. I had wanted a little pinker, but it's okay. Skin Test 1.jpg

"A lonely climber walks a tightrope to where dreams are born and never die!" - Billy Thorpe, song: Edge of Madness, album: East of Eden's Gate

Weapons of choice:

Poser Pro 2012, SR2, Paintshop Pro 8

 

 


xpdev ( ) posted Thu, 17 September 2015 at 5:05 AM · edited Thu, 17 September 2015 at 5:10 AM

Latexluv

i thank you for your work, but i really don't understand what you're doing.

Don't forget my scene settings. IDL and GC 2.2 1 infite white light to 85% (direction -51 -342 -12) BB Sphere set to default

Poser Pro 2014 SR 1 on Windows 7 64 bit
I use IDL, Gamma Correction and EZSkin for all final renders.


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