Genesis 2 Iray Issue

When trying to render Genesis 2 in Iray, using Iray mats, I get a whitening result at the bottom of the screen.  It only happens with Genesis 2's (Tressie & Destiny mats),  I'm using DS 4.9, latest version).  See attachment.

Comments

  • bryanll1bryanll1 Posts: 141

    This is starting to really piss me off.  Every different Iray light combination I try does the same thing, whites out the character near the bottom of the window.

  • Digital Lite DesignDigital Lite Design Posts: 728
    edited June 2016

    What happens if you back away from the character more?  Just back the camera up and render....

    Post edited by Digital Lite Design on
  • kyoto kidkyoto kid Posts: 42,006
    edited June 2016

    ...is the camera headlamp on or off?  Could there maybe be lights that were included with the character?

    I have no trouble with G2 in Iray though I am still using 4.8.

    Post edited by kyoto kid on
  • bryanll1bryanll1 Posts: 141

    It's only at the bottom of the window.  If I back the camera off, the character is fine.  If I turn all of the lights off, the whole character renders white.

  • bryanll1bryanll1 Posts: 141

    My render settings turn the stock lights off when other lights are added.

  • jestmartjestmart Posts: 4,449

    Perhaps the floor surface is too light reflective, try adjusting the roughness.

  • bryanll1bryanll1 Posts: 141

    I thought that at first, so I removed everything from the scene but the character....same result.  This happens with both Iray characters, so it's not them.

  • bryanll1bryanll1 Posts: 141

    I may be on to something.  in the Render Settings, I changed Environment Mode to Scene Only.  This made the render significantly darker, but it did remove the "white leg" phenomenon.

  • bryanll1bryanll1 Posts: 141

    Next step was change to Dome Only - The "white legs" returned.

    Next step, play with Dome Settings.  Oddly, Dome Rotation was set at 148.24.  I changed it to 100.0 and the "white legs" went away.  I changed it to 0.0 and the render had a plastic, 3Delight kind of look.  Anyone have any thoughts on this?

  • KnittingmommyKnittingmommy Posts: 8,191

    What HDR image do you have set in the Environments Map? Try changing that image to something else or select none and see if you have the same issues.  

  • SpottedKittySpottedKitty Posts: 7,232
    bryanll1 said:

    I may be on to something.  in the Render Settings, I changed Environment Mode to Scene Only.  This made the render significantly darker, but it did remove the "white leg" phenomenon.

    This suggests very strongly that you removed the default camera Headlight as you wanted, but not the default scene Environment light. If you leave this on, it contributes to the scene lighting and gives you a false impression of what your added scene lights are actually doing. That's what causes the "making the render darker" you mentioned — you're actually seeing the effect of only the lights you put into the scene.

  • bryanll1bryanll1 Posts: 141

    How do you turn the default environment light off?  I thought I got everything.

  • KnittingmommyKnittingmommy Posts: 8,191

    Do you have the default HDR map in the Environment map?  If yes, and you have your settings at dome and scene, you are probably getting lights from the Environment map.  I don't know how many times I've had a similar thing happen and spent hours trying to track down the lighting culprit and forgot about the Environment Map. My fix for this was to create a new scene with my basic camera with the headlight set to off as the default and make sure there was nothing in the Environment map and I had a completely black screen even when set dome and scene.  I, also, set the No Headlamp ever thing in the Render Settings tab to make sure I don't accidentally get a light that I don't want.  I then saved this as a 'Default' scene and have DS load that when it boots up so I know for sure there are no extraneous lights I have to go turn off or delete before I can start my scene.  You can do this in the preferences tab from the toolbar. It saves me a ton of headaches.  

    Make sure you are actually looking through the camera, too, as looking through Perspective does add lights! And, you can't turn off the Perspective lights.  I have tried rendering an image quite a few times thinking I was in the camera when I was actually shooting from Perspective and it makes a huge difference when you are actually in a camera!  Accidentally shooting from Perspective View, really messes up a shot!

     

  • kyoto kidkyoto kid Posts: 42,006

    ...I have an HDRI ambient environment map created by Mec3D which I use for proofing characters using a simple backdrop before putting them in a scene.  Don't know if it is available anymore.

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