Forum: Poser Technical


Subject: Real Skin Shader - Strange Render Problem

sdsullivan opened this issue on May 17, 2010 · 7 posts


sdsullivan posted Thu, 01 July 2010 at 10:06 AM

Someone in another Renderosity forum suggested that it was a light without shadows, too, and suggested turning on the shadows for that light to fix it.  Which kinda worked -- at least on the face -- though it wasn't the light I expected it would be.  So, I think your analysis is right on.  Thanks.

I may try your version of the solution, too, as there's still part of the figure -- her crotch and inner thigh - that seems to pick up a reflection no matter how many shadows I turn on in the current light setup.  My theory is that the slight "shine" (don't know the technical word) the script gives to the skin just "peaks" in that area -- as if the body were oiled and the oil was catching the light just right in that area, and reflecting as a shine.

With the light set to ray trace shadows, that shine looks more "realistic" - but the original render didn't have it.  And even if I turn all the "secondary" lights off, the shine is still there, so I'm guessing it's the main light.  (Didn't try turning that one off, and it already has shadows.)

It's not the worst thing in the world, but it is a bit annoying on a nude render -- which is how I've been working on this -- to have the crotch slightly "spotlighted."  (Could it be a reflection from the "ground" she's standing on?)

I wondered, though, if it might have happened because I ran the shader script multiple times as I was learning.  (First time it told me that I'd run it using the wrong light.)

Which brings up another question: Is there an easy way to "scrub" a skin shader (script) out of a light/figure and just start again?

I tried removing the old set of lights and putting in a new, duplicate set. But that didn't work.  (Oddly enough, none of the other light setups I tried had either the "face glow" or the "crotch glow" problems.

Thanks for your help.

 Stephen D. Sullivan

www.stephendsullivan.com

Adventure guaranteed.  (Monsters optional.)