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Re: Skin shader with SSS
Posted: Mon Apr 08, 2013 11:34 am
by sigmamoon
face_off wrote:I quickly turned off the front light and up the sss effect - and you can see there is some ear glow.
After that I played with the cone and emitter in standalone - comparing 1.00 with 1.10. They are different. Firstly I needed to disable alpha-shadows. Also, check your rayepsilon isn't wrong for your scene size. The maxdepth makes a HUGE difference. If you want strong sss in the ears, turn maxdepth down to 3 or 4. The higher the maxdepth, the more the sss bounces around diminishing the effect.
Another thing - SSS skin shaders mix a glossy and diffuse node. So the sss effect from the diffuse node will be diluted by the glossy.
nice fall_off
you said you compare between 1.00 to 1.10, do you have try with the v1.11
Re: Skin shader with SSS
Posted: Mon Apr 08, 2013 11:39 am
by face_off
you said you compare between 1.00 to 1.10, do you have try with the v1.11
Not standalone. But that render above of the head was done in 1.11 (current Poser plugin build).
Re: Skin shader with SSS
Posted: Mon Apr 08, 2013 12:21 pm
by sigmamoon
face_off wrote:I quickly turned off the front light and up the sss effect - and you can see there is some ear glow.
After that I played with the cone and emitter in standalone - comparing 1.00 with 1.10. They are different. Firstly I needed to disable alpha-shadows. Also, check your rayepsilon isn't wrong for your scene size. The maxdepth makes a HUGE difference. If you want strong sss in the ears, turn maxdepth down to 3 or 4. The higher the maxdepth, the more the sss bounces around diminishing the effect.
Another thing - SSS skin shaders mix a glossy and diffuse node. So the sss effect from the diffuse node will be diluted by the glossy.
BIG THANKKKK YOUUUUU "Face_off"
you give me many great informations to swap between the v1.10 than v1.11 SSS
some of your parameters work in the standalone too, i ll make a video to explain for the communoty soon. But, in final rendering i have a really noisy result (the v1.10 was really quick to blur all the artefacts)
do you have this feeling?
and
roeland from the octanerender team confirmed there are some SSS problems with transmission. that s great to discuss about this problem to make involve this great render engine
Nice to share with you
Re: Skin shader with SSS
Posted: Mon Apr 08, 2013 9:32 pm
by face_off
But, in final rendering i have a really noisy result
I noticed a lot of noise too - so set hotpixel_removal to 0. Increasing caustic_blur would help too.
Re: Skin shader with SSS
Posted: Tue Apr 09, 2013 7:34 am
by sigmamoon
Thank you face_off
same here!
i hope the octane team could involve this part cause i loooove the scatering medium
i ll make soon a little video for newbies "like me" to help to swap from v1.10 to 1.12
i like your website "face_off" and thanks for your exchange.
fabien
Re: Skin shader with SSS
Posted: Wed Apr 10, 2013 9:52 am
by mib2berlin
Sorry for late reply.
This is looking much better now, I can test this next days and report my results.
Thanks face_off, mib.
Re: Skin shader with SSS
Posted: Sun Apr 14, 2013 11:55 pm
by gordonrobb
Thanks. Finally had a look at this and manage to reverse engineer it (I think).
One with a couple of lights, and one with daylight. Not perfect, but much happier with it.
Re: Skin shader with SSS
Posted: Mon Apr 15, 2013 1:57 am
by Daniel
The skin is a bit too glossy in those last images.
Re: Skin shader with SSS
Posted: Mon Apr 15, 2013 7:07 am
by gordonrobb
Funny, I was thinking that around the side of the head, it wasn't glossy enough. However, definitely too glossy on the lips. Trying to understand node system in Lightwave enough to see how I can use the 'glossy' image from the model to have the lips be different, but reducing the difference, while using another node to control the overall glossiness. It's a journey. But compared to where I was with this last week, I'm over the moon
Re: Skin shader with SSS
Posted: Mon Apr 15, 2013 7:41 am
by slash
I like those. I think they look great! I'm going back to the drawing board after looking at your work.