I'm always looking for the right path.

By following the advice in this post by piersyf (http://www.renderosity.com/mod/forumpro/?thread_id=2884825&page_number=2) I got with one simple infinite light and BB skydome
the result you may see below with render settings.

This result is much better than it has ever managed to get

light at          1000%
BB dome ambient value   10

what looks good for the whole environment actually causes me problems with the skin of the character.

The leather used is standard High resolution V4  without any correction, this to have a parameter working on a skin common to us all.

I have my idea of starting point, but I always got wrong results from reality.

I have obviously available EZSKIN rel. 2.1.1

I forgot:  Panorama is only visible, no effect on rendering

Render settings are not at the maximum avaible to reduce rendering times

Help me to learn.

Thank You.

The high intensity of the infinite light must be causing the anomaly you see on the back render of V4.  Slowly reduce from the 1000 intensity and see what happens.  This is my experienced guess of the situation.  :)

Thanks Boni, but don't care about poor shadows on the body (low resolution and low IC)

The trouble in on the entire body skin, color, slight gloss that there should be from the part of the light (right)

is certainly due to the fact that there are no direct lights, but probably I'm wrong all the settings of the skin, so the rendering has not posted any changes on the skin, just skin V4 high resolution.

When using only indirect light, there will be no gloss from the specular node family (Blinn, ks_microfacet, Specular, Glossy, Anisotropic, etc.) because they are all cheats that rely on the other cheat - light sources. 

Realistic specularity comes from reflections of the environment, particularly in this case. I have written about this before, but before you trouble yourself to read lots of math, SnarlyGribbly already did it. He read my thread about this and implemented it in EZSkin.

The feature is on the "Skin" tab, after the Main options tab. You want to turn on "Use rough surface fresnel" and "Modulate specular softness".

The Fresnel configuration section and the Reflection section can be used to adjust the effect.

Oh wait - maybe not. Checking ...

On the main options tab, turn on the checkbox for "Add fresnel reflection to skin"

Note: Casual render settings are going to produce horrible results here - you need thousands of reflection samples to get rough-surface reflections to look right. Usually they come out too grainy. 

I did this with min shading rate = .2 and Reflect quality .2 (in ezskin UI it is a percentage, so 20%) and that still wasn't good enough. The reflection quality has to be raised, which means long render times.

Did a render with reflection quality at 100% and after 44 minutes got this improved result.

Thanks BB

I need to do tests with my scene.

One question.

There is another way to have a good ligthing scene to jump the trouble i posted ?

Thanks BB

I need to do tests with my scene.

One question.

There is another way to have a good ligthing scene to jump the trouble i posted ?

Sorry - I don't understand this question. What trouble? You are using accurate lighting now - indoor light levels due to windows are usually 8 to 10 times lower than if you go outside. Therefore, your simulation using 1000% lighting (outside) is accurate. The sun in this case is doing nothing, since you didn't point it through the windows. Therefore all the light is indirect. Therefore you cannot rely on techniques that are ignoring indirect light, such as specular nodes. Your light is coming from glowing objects - therefore you must use reflection to reflect those glowing objects.

You are THE BOSS. BB

Asap i'll post tests.

When I use the Fresnel reflect in EZSkin I go back and turn the reflect amount down to .5 on all materials afterward because it makes the skin look too wet. Not sure if there is a control for this in EZSkin or not. I can't check right now cause I go a render in the oven.

Much better light on the skin.

When I use the Fresnel reflect in EZSkin I go back and turn the reflect amount down to .5 on all materials afterward because it makes the skin look too wet. Not sure if there is a control for this in EZSkin or not. I can't check right now cause I go a render in the oven.

Correct and this is what I use as well for skin. EZSkin has this in its Skin tab, in the Fresnel configuration Section. It's the parameter called Mult and I set it to 50%. The reason for this is that the (simple) Fresnel equation quoted in physics books only applies to glassy-smooth surfaces like - well - glass, or obviously to water.

This is why I refer to this as "rough surface" Fresnel. There is little to be seen in Googling for this behavior, which is frustrating as you have to figure it out. But I made some measurements and experiments and found that if you slightly increase the Fresnel iOR and then overall decrease the multiplier, you can approximate it well enough.

So in EZSkin I used iOR of 165 (1.65) and Mult = 50%.

Much better light on the skin.

Yes it is much better.

For reference: for those of you who are applying EZSkin via the EZMat addon you can activate a hidden tab containing the more esoteric EZSKin settings by activating the EZMat UI (by clicking on any one of the existing tabs) and pressing ALT and minus ('-') together in Windows, or whatever the equivalent is in MacOS. The same key combination will hide the screen again.

xpdev: quick question.  Where did you get the indoor pool set?

mac keyboards now labelled with small "alt" in upper left of option key.

For reference: for those of you who are applying EZSkin via the EZMat addon you can activate a hidden tab containing the more esoteric EZSKin settings by activating the EZMat UI (by clicking on any one of the existing tabs) and pressing ALT and minus ('-') together in Windows, or whatever the equivalent is in MacOS. The same key combination will hide the screen again.

Cool. I felt because some things "seemed" missing I had to have both EZ plug-ins open at once.  Nice tip ... thank you.

http://www.renderosity.com/mod/bcs/home-pool-room/61115/

This s a public service and blatant plug for a Renderosity Marketplace product. :)

Boni