Much more reddish skins in outdoor scenes?

Does someone gets much more reddish skin in outdoor renders compared with the same skin when there is a single figure in the viewport? There is no sourse of red light in the scene neither any red objects nearby.

Comments

  • TynkereTynkere Posts: 834
    edited January 2019

    Couple of things-- you've probably already considered them.  A factor of HDR file for dome, or time of the day if not using one?   Orange maybe, but wouldn't think red.  White point?  Cooling filter post edit then?

    Maybe a screenshot would help others who have more experience than I do.  :)

    Post edited by Tynkere on
  • handel_035c4ce6handel_035c4ce6 Posts: 460
    edited January 2019
    Tynkere said:

    Couple of things-- you've probably already considered them.  A factor of HDR file for dome, or time of the day if not using one?   Orange maybe, but wouldn't think red.  White point?  Cooling filter post edit then?

    Maybe a screenshot would help others who have more experience than I do.  :)

    Obviously this is not a common thing. I deleted the shader combo but think I hve a shader preset so I will see ifI can recreate it. The problem is it happened after I decided to add some glossiness to the skin; there was no difference when there was before adding the glossiness at the same scene.


    Edit: I used the same shader preset with the standard G8F figure; the 1st render is just the viewport w/o anything else. The 2nd the actual (almost) scene with absolutely the same figure. With cloths the figure looks more dark-ish then reddish but what I try to understand is why this difference actually appear - because w/o the added glossines there were no noticeable difference between both renders. The 3rd render is the same scene but everything besides the figure is deleted.

    1_red_test.png
    1440 x 1440 - 1004K
    2_red_test.png
    1440 x 1440 - 4M
    3_red_test.png
    1440 x 1440 - 2M
    Post edited by handel_035c4ce6 on
  • magog_a4eb71abmagog_a4eb71ab Posts: 769
    edited January 2019

    If the skin settings haven't changed while the lighting has changed, then the issue is with the lighting. Sometimes you have to adjust the skin settings, such as Translucency Weight(the higher, the more darker the skin), and SSS Reflectance Tint(Base Color Effect must be set to Scatter & Transmit for this option to be available). If you're happy with the lighting, I would try adjusting the SSS Reflectance Tint of the character first by reducing the red parameter. If I recall correctly, there are 3 sets of numbers within a colorized bar labeled SSS Reflectance Tint in the surface settings for the skin areas, as an example: 0.81 0.90 0.83 . The first one increases/decreases blue tint, the second one red tint, and the third one yellow tint. Try bringing the second one closer to 1.00(max value) and that should decrease the reddish tint. You might have to adjust the other two values so you don't end up with too much of a blue/yellow tint. Note: you will have to do this for the head, ears, torso, arms, and legs! It is recommended that you use the same SSS Reflectance Tint settings for all of the skin parts or you'll have noticeable seams where clothing doesn't cover them.

    The second screenshot looks like it could use a bit more light in the area where your character is positioned.

    This is a good basic tutorial on skin: https://thinkdrawart.com/daz-studio-iray-skin-tutorial

    Post edited by magog_a4eb71ab on
  • If the skin settings haven't changed while the lighting has changed, then the issue is with the lighting.

    I thought this too. But I wondered why exactly this happens as the same skin with the default IRay shaders had no serious difference in the appearance in the same renders. The difference appeared when I increased the glossiness from the Dual Lobe thingy and from the Glossy thingy. Not a single color was changed and the SSS tint wasn't changed in any way. So only the glossiness should have increased but not the skin tint.

    Anyway, there are many misteries in the space:-)

    I decreased the translucensy weight for this scene only so it is OK now.

     

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