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Creepy Eye Glitch on the Daz Rodents *SOLVED*

Fae3DFae3D Posts: 2,842
edited August 14 in The Commons

I just picked up Daz Rodent and the hampster and guinea pig for it (these outlet sales are going to ruin me, I keep saying "but it's such a great deal!" and blowing my budget lol).  However, when I did a test render of them, they turned out looking pretty creepy.  The eyes on all three of them are rendering pure white, it looks like they're "glowing", but it's probably just an illusion.  They look fine in the viewport.  I'm using a Daz store bought HDRI (I don't remember which one, just a plain sky with clouds), Iray render, and nothing else in the scene except the rodents.  Latest normal Daz Studio version, not a beta.  I tried with and without the hair, and a couple different coat colors.  I've done no adjustments.  They were rendered on a transparency, the reason the BG is white is because I converted it to JPG to upload.  Anyone have any idea why my rodents eyes look so strange? 

Edited to add pictures.

Rodents Hairless.jpeg
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Rodents with Hair.jpeg
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Post edited by Fae3D on

Comments

  • TaozTaoz Posts: 10,253
    edited August 12

    I noticed that too when I tested them about a year ago, but it only happens when positioned at certain angles.  I just did another test in the latest DS (4.24.03), where I loaded two base (no fur) rodents, the one Y-translated a bit to separate them, but otherwise both in zero position.  As you can see, when the scene is in a certain position, both look OK, but when I rotate the scene a bit clockwise the left one gets white eyes.  So I presume it has something to do with the lighting (I'm using Colm Jackson's Pro Studio HDR / HDR Light 01 L here).

    I did discover another issue though which I don't recall I had when I tested a year ago - none of the fur versions will load, or at least they hadn't loaded after 10 minutes of "Not responding" at which point I killed DS.  I did see constant CPU usage at 18-20% from DS though while attempting to load them , so I'll give it another try, letting it run for a longer time, to see if they're just loading slow.  I know the hamster did load a year ago as I still have a test render of it. 

     

    daz_rodent_01.png
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    daz_rodent_02.png
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    Post edited by Taoz on
  • TaozTaoz Posts: 10,253

    OK, gave it another try with the hamster with fur, it actually did load eventually but it took 13-14 minutes. Hardware is pretty old, but still. 

    Anyway, the issue is the same here, white eyes at certain angles, OK at others.  

    I found a way to fix it though - under Surfaces, set Refraction Weight for Cornea to 1.00 (default is 0.87).  Doesn't seem to have any side effects, AFAICS. 

     

     

  • Fae3DFae3D Posts: 2,842

    Taoz said:

    OK, gave it another try with the hamster with fur, it actually did load eventually but it took 13-14 minutes. Hardware is pretty old, but still. 

    Anyway, the issue is the same here, white eyes at certain angles, OK at others.  

    I found a way to fix it though - under Surfaces, set Refraction Weight for Cornea to 1.00 (default is 0.87).  Doesn't seem to have any side effects, AFAICS. 

     

    Thank you so much for looking into it for me!  I'm glad I'm not going crazy, and it's a repeatable issue.  I can't try the fix just yet, I've got a long render cooking, but I just wanted to pop in and say thanks!!!

  • mdingmding Posts: 1,652

    Many thanks @Taoz! Bookmarked.

  • TaozTaoz Posts: 10,253
    edited August 13

    You're welcome!

    Post edited by Taoz on
  • Fae3DFae3D Posts: 2,842

    Yay, it worked!  My fluffy little critters no longer have weird glowing eyes.  That one change to the settings made all the difference.  Thank you so much, Taoz, I really appreciate it!!! ^_^

    Yay!.jpeg
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  • WendyLuvsCatzWendyLuvsCatz Posts: 40,051

    its the tapetum lucidum

  • LorraineLorraine Posts: 880

    WendyLuvsCatz said:

    its the tapetum lucidum

    Well, that was a fascinating trip down the rabbit hole!

  • WendyLuvsCatzWendyLuvsCatz Posts: 40,051

    Lorraine said:

    WendyLuvsCatz said:

    its the tapetum lucidum

    Well, that was a fascinating trip down the rabbit hole!

    if they make it across the road surprise

  • Fae3DFae3D Posts: 2,842

    WendyLuvsCatz said:

    its the tapetum lucidum

    Huh, I never knew that "eye shine" had an official name.  I never knew what caused it, either, I guess I just never thought much about it.  Thanks for the cool info, I have now learned something new today ^_^

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