Skin Geograft Rendering issue on Lekkulion

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Amzadi
Posts: 9
Joined: Fri Jun 03, 2016 2:31 pm

Skin Geograft Rendering issue on Lekkulion

Postby Amzadi » Tue Apr 11, 2017 5:30 am

- Daz Studio 4.9.3.166
- Reality 4.3.1.16203
- LuxRender 1.6.0 Build 16132
- No GPU acceleration.
- A screenshot of the Render | Output page of Reality.
- A screenshot of the Render | Scene Configuration page of Reality .
- Win7 64-bit
- Perfect Shot scene from preta3d.com and Lekkulion for Genesis 3 Female by RawArt

When I try to render the image, having changed the skin settings to match the body, I get the following issue on the headtails.

Image

I seem to get slight variations in the look of the skin when using the Genitals, but the Head Tails are more the issue and the gens could probably be fixed the same way.

Below are screenshots of the material configuration between the face and the head tails (I excluded Opacity as there is only one bit of info in there and it is all identical.

Material Tab
http://i.imgur.com/UtjhOKD.jpg
http://i.imgur.com/oV7tDnx.jpg

Volume Tab
http://i.imgur.com/I0YW0fr.jpg
http://i.imgur.com/0LwI1pN.jpg

Modifier Tab
http://i.imgur.com/DN8TmYu.jpg
http://i.imgur.com/4SX9Scl.jpg

Any tips of suggestions I might be able to try?

Thank you in advance.

Gederix
Posts: 99
Joined: Tue Mar 01, 2016 11:06 am

Re: Skin Geograft Rendering issue on Lekkulion

Postby Gederix » Wed Apr 12, 2017 10:27 am

I will take a stab...

when you convert a glossy material to skin (or anything to anything really afaict) that uses bump/normal math in the modifiers tab, that resets the math to 1 and 1 for the two materials when it should be .0008 and 1.
So for the headtails/gens change the bump amount to .0008 and you should be good to go. I have lekkulion and it renders great in reality.
Possible also the lips.

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Nathanomir
Posts: 135
Joined: Tue Mar 01, 2016 9:52 am
Location: North Texas
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Re: Skin Geograft Rendering issue on Lekkulion

Postby Nathanomir » Thu Apr 13, 2017 8:15 am

I'll also take a stab ...

Check the gain and gamma settings for your specular and topcoat maps for the geografts. Some will be at gain of 1 and gamma of 2.2, others may be at gain of .5 and gamma of 1. And you will get a few at a gain of 1.1, which really throws things off.

Gain is a matter of personal choice, especially in specular. 1 is brighter, .5 is darker. Just make sure they're consistent in all your skin textures. Gamma should be at 2.2 for color, and 1 for grayscale.
Sometimes, my wife wakes up grumpy. Sometimes, she lets me sleep.

Gederix
Posts: 99
Joined: Tue Mar 01, 2016 11:06 am

Re: Skin Geograft Rendering issue on Lekkulion

Postby Gederix » Thu Apr 13, 2017 10:43 am

I think the bump normal % on the skin surfaces in general is probably too high also, looking at the chin. Maybe drop it down from 66% to like 20-30% and go from there, for all skin surfaces. Make lips 40%.
And I am 99.999% certain the bump normal math is wrong as the headtails should not look like a hat. They should smoothly flow from the head without a visible ridge where they attach. Plus the cracked, cauliflower effect.

Amzadi
Posts: 9
Joined: Fri Jun 03, 2016 2:31 pm

Re: Skin Geograft Rendering issue on Lekkulion

Postby Amzadi » Fri Apr 14, 2017 1:01 pm

That all helped, than you guys so much :)


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