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Poser - OFFICIAL F.A.Q (Last Updated: 2024 Dec 23 8:11 am)



Subject: Need help with SSS and IDL render


Mariny ( ) posted Thu, 15 March 2012 at 6:00 AM · edited Mon, 23 December 2024 at 12:43 PM

WHy do the skin get blue spots when using IDL light and SSS shader???

Hope someone can help me:-)


Mariny ( ) posted Thu, 15 March 2012 at 6:22 AM

file_479535.jpg

Here are picture of it..

I have used 1 IBL light,1 spec and 1 infinite with raytrace shadow..

Have also used the sphere and cove from render studio-rdna...


Mariny ( ) posted Thu, 15 March 2012 at 6:24 AM

file_479536.jpg

Here are the render settings:


LaurieA ( ) posted Thu, 15 March 2012 at 7:42 AM

If there is AO on your lights or in the materials, turn it off.

Laurie



Mariny ( ) posted Thu, 15 March 2012 at 9:43 AM

I don't have any AO on skin or light...


basicwiz ( ) posted Thu, 15 March 2012 at 10:13 AM

Have you tried reducing the Min Shade Rate?


icprncss2 ( ) posted Thu, 15 March 2012 at 10:49 AM

What skin texture are you using?

Even if the texture doesn't specifically state AO, AO nodes can end up in the mix.  Especially if a real skin type python script was used by the vendor.

How many and what types of lights are you using?  If you are using a commercial light set, again you may need to check the material room for AO nodes.

If you turn off IDL do you still have the issue?


vilters ( ) posted Thu, 15 March 2012 at 11:34 AM

This is a kown issue and will be solved soon.

It can, but does not allways,  happen when 2 SSS surfaces are too close together.

Secondly; I see MSR at 0.1.
Did you set 0.1 in all the objects parameters palette also?
PP2012 manual page 396 if my memory is not fading :-)

Third: For best quality set Post filter size at 2 or 3 and Post filter type to sync.

Question?
Any special reason why Gamma Correction is OFF?

Happy Posering.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!


hborre ( ) posted Thu, 15 March 2012 at 11:39 AM · edited Thu, 15 March 2012 at 11:40 AM

By increasing the scaling on the SSS node you can eliminate the bluishness.  But the artifacts are seen between bikini bottom and skin textures.  There really shouldn't be any SSS for the bikini material unless it was intentionally added.


Mariny ( ) posted Fri, 16 March 2012 at 4:16 AM · edited Fri, 16 March 2012 at 4:16 AM

icprncss2:

It's my own texture, so i know it is not any AO in it:-)
And the lights i have made myself;1 IBL,1 spec and 1 infinite..

vilters: I haven't thought if that the obj had 0,20 in shading rate, so shall change my shading rate to 0,2 and see if it helps...
You sayd i shall take post filter to 2 or 3, but then it went soooo blurry?? It is sharper at 1.
I tried with gamma correction ON, but then her eyes look to white and the lashes almost invisible...

hborre: It's V4 default bikini, have not applied anything on it...


vilters ( ) posted Fri, 16 March 2012 at 5:06 AM

For the lashes.

Anything that you put in transparancy, bump or displacement have to be set at gamma 1(ONE) => Do not use the option "Set to render Gamma" in the shader when you load the transmap texture. Use the manual selection and set Gamma to 1.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!


richardson ( ) posted Fri, 16 March 2012 at 6:07 AM

When this happens to me I break the pattern. I mean instead of turning my time into beta testing for SM, I move or delete the lights. Change them..delete the ibl and put a similar hdr on the sphere instead. Lower or raise light bias . Use shadowcams to be sure light is actually hitting the target.. Adding a specular only light as your secondary light. This light can have diffuse gray if you want light from it too.  Make parts or clothing invisible to RayTrace

Switch off light emitter on cloth and hair. Save your successful lightsets as PZ3s and start fresh from there. All this in 10 minutes so you can have fun again..

Until that IDL fix is released  ;)


hborre ( ) posted Fri, 16 March 2012 at 9:03 AM

@vilters: Mariny is rendering without any gamma at all.  Changing the gamma settings for any transparency, bump, or displacement will not have any effect in this case.


RobynsVeil ( ) posted Fri, 16 March 2012 at 11:28 PM · edited Fri, 16 March 2012 at 11:29 PM

Well, Mariny did say "I tried with gamma correction ON, but then her eyes looked too white and the lashes [were] almost invisible..." which is what I believe Vilters was addressing. As you know, GC is not as easy as just turning it on...

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks


Mariny ( ) posted Sun, 18 March 2012 at 5:31 AM · edited Sun, 18 March 2012 at 5:31 AM

I tried without the cove and sphere from renderstudio, and IDL off in render settings and then the problem is gone..

SO WHY can't I render with cove and sphere as other people can:-))??


LaurieA ( ) posted Sun, 18 March 2012 at 8:40 AM

Why don't you try Bagginsbill's Envirosphere? I have no problems with that at all. As it is, I have no idea why it's not working for you with the RDNA one.

Laurie



Mariny ( ) posted Sun, 18 March 2012 at 9:28 AM

Where do i find baggingsbill's sphere??


Mariny ( ) posted Sun, 18 March 2012 at 9:44 AM

Found it and shall try it Laurie:-)


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