Hot to get rid of greenish tint appears in SSS?

fa2020

Hi guys,
When I apply SSS material into a sculpture and render it there is a tint greenish color especially when I increase the scattering amount. Recently, I rendered the following model using Vray 3.5 and the result has a tint greenish color. Please guide me.

Neox

just change the color of your sss.

i am sure this is possible in vray, looks like it just uses a default value of the usual orange red for skin, which mixed into blue yields this result

oglu

or use the new  alsurface shader...

musashidan

oglu said:

or use the new  alsurface shader...

This.

But also, setting the scale too low(ie, very strong SSS effect) can result in hues that you wouldn't expect when different colours are mixed at the different depths (layers) This is the effect that @neox mentioned.

fa2020

I used Vray fast sss2 and didn't have any orange color in any slot. I used 3 colors that all were blue with different brightness. One for diffuse, the second for overall color and the third for scattering.

onionhead_o

its most likely your scale. As Musahidan has mentioned. If you push the scale to too high or too low, it will give you unexpected effects

demonslayer

old topic, but was this resolved?It is not only related to the scale, as soon as you put a diffuse map inside the overall color slot or into the sub-surface color slot you get that problem of greenish colors. When you use your map in the scatter color instead you loose tons of details of this map. So how do adress this issue?

Eric Chadwick

Post a shot of your issue? I suspect it's related to the blue having a bit of green hue (teal-ish) and pushing it further towards true blue might fix this. Or does it occur with other hues too? Pure gray?

What version of V-Ray are you using, in what software?

demonslayer

Hey Eric,
I also postet on the chaos forum now: https://forums.chaosgroup.com/forum/v-ray-for-3ds-max-forums/v-ray-for-3ds-max-problems/1057209-greenish-color-spill-onvrayfastsss2

https://forums.chaosgroup.com/filedata/fetch?photoid=1057375&type=thumb

I hope we come up with an solution there,

Eric Chadwick

It looks like you found the solution there? "the longer a path is, and the more Saturated the colors are, the more it runs around the hue wheel, trying to hit the opposite side."