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Technical question about sun/sky mode en Iray

GreyFaunGreyFaun Posts: 28
in The Commons

Hello everyone,

I've tried using the sun/sky only mode en Iray for dawn or dusk renders, but as soon as the sun is close to the horizon I can't get rid of a strange green haze.

Does anyone have a tip to get around the problem ?

Thanks in advance !

Comments

  • NorthOf45NorthOf45 Posts: 5,551

    Try SS-Blue-Red Tint (either way), add a little SS Haze, maybe decrease SS Saturation (seems more effective with Blue tint).

  • FishtalesFishtales Posts: 6,162

    Do you have Show Finite Sphere ticked? If you do then untick it as it adds a rainbow coloured layer to the sphere.

  • GreyFaunGreyFaun Posts: 28

    Thanks, but for now it doesn't work.

    It seems that the yellow tint of the sun light mixes with the sky's blue and becomes green, something like that.

  • FishtalesFishtales Posts: 6,162

    Do you have an example picture and a picture of your settings?

  • kyoto kidkyoto kid Posts: 41,244
    edited June 2021

    ...I tried a number of elevation and azimuth settings using the Sun Dial and the sky remains "natural" looking even at extremely low angles (like -7). 

    I am using pretty much the environmental defaults with the following tone map settings:

    ISO of 64, F/stop at 8 shutter speed at 75 - 100 (depending on the sun elevation) and saturation value of 1.4 .(used to be a photographer who preferred Kodachrome and Ektacrhome 64 for its colour richness).  

    ETA, forgot the attachments and to mention I also used a bit of vignetting.  

    Image 1, sun elevation 25%

    Image 2, sun elevation 6%

     

    Grenade-O De Lime-O Sun-Sky.jpg
    1200 x 1200 - 864K
    Grenade-O De Lime-O Sun-Sky Low.jpg
    1200 x 1200 - 763K
    Post edited by kyoto kid on
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