Quote - Here is an example of with and without pre-scatter ambient.

 

THe image on the left has pre-scatter ambient enabled, and the one on the right does not.

 

Notice how much more red is the in the right image?  While some may think this looks more accurate, that is only until you understand that the light for this scene is a full strength spotlight with square fall-off only about 2 feet above his head.  In other words its a friggin bright light!

 

One thing I forgot to mention is that I have the diffuse texture connected to the diffuse node that drives the pre-scatter ambient.

So I was wondering about this. What does the less red shader look like in lower intensity lighting?

What I like is a surface with the colouration & tone of the lighter shader where the brightest areas of lighting fall on the face, but transitioning more gradually toward the shadow with the colouration of the second shader - If you get what I mean.

 

PoserPro2014(Sr4), Win7 x64, display units set to inches.

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