Loading...
> >

Skyler hair and Iray

aspinaspin Posts: 219
in The Commons

Using Skyler hair for G2F with Iray creates weird shadow effects in the hair.

What is going wrong?

Comments

  • frank0314frank0314 Posts: 14,710

    What lights do you have in the scene?

  • aspinaspin Posts: 219

    I use an hdri map as light (and background).

  • ToborTobor Posts: 2,300

    Unless the Skyler hair has specific Iray shaders, you're bound to get some odd effects. Just converting the hair parts to Iray Uber is often not enough. Most hair contains transparency maps, and you need to be careful how these are converted in Iray. If you don't want to do it yourself, there are several Iray hair products available. My favorite is the UHT Iray shader by Slosh, available here.

    Because you are dealing with a transparency, you might try locating your character right at 0,0,0, if it isn't already. Reposition the camera accordingly and retake your shot. If the odd shadowing goes away, it's a known problem with Iray.

    BTW, next please provide a larger example image. It's hard to see any detail in the small graphic you've provided.

     

  • aspinaspin Posts: 219
    edited November 2015

    I use the Iray shaders for Skyler

    I hoped 512x288 was big enough... well, next time.

    Edit: Even when I use http://www.daz3d.com/uht-hair-shaders-for-iray the effect is the same... except for a white part in front of the face instead the hair.

    Post edited by aspin on
  • aspinaspin Posts: 219
    edited November 2015

    Here a bigger version

    test03_03_02_03.jpg
    1024 x 576 - 63K
    Post edited by Chohole on
  • PendraiaPendraia Posts: 3,598

    If you're using hdri you may need to reposition the figure so the light falls differently, I'm not sure if you can change time of day when using a hdri image...

  • aspinaspin Posts: 219
    edited November 2015

    I rotated the dome 200 degree... almost the same.

    Also located the character to 0,0,0 ... no difference.

    Now I deleted and added the hair, using a less intense hdri background and now the hair turns white

    maybe I should file a ticket

    test03_03_03.jpg
    1024 x 576 - 95K
    Post edited by Chohole on
  • mjc1016mjc1016 Posts: 15,001

    Check that the cutout opacity map isn't being compressed and that it's gamma is set to 1 (Image Editor under Surface).

  • aspinaspin Posts: 219

    Gamma is set to 1 and compression makes no difference if I set it to 0 or 8192.

Sign In or Register to comment.