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HDRI is oddly pixelated

SylvanSylvan Posts: 2,718
edited November 2018 in Technical Help (nuts n bolts)

I am using: https://www.daz3d.com/skies-of-iradiance-high-sky-hdri-bundle-for-iray and my HDRI shows up with big pixels. Have tried several settings but so far I'm unable to get a clear sky. What could cause this?

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Post edited by Sylvan on

Comments

  • SylvanSylvan Posts: 2,718
    edited November 2018

    I am at my wits end :( It seems every HDRI is giving the same result, I tried several different ones from several vendors. I also tried openig the scene in the latest beta version and the result is the same.This has been keeping my project on hold for a week now. I never had this problem before. Could it be a problem with my GPU?

    Post edited by Sylvan on
  • Sven DullahSven Dullah Posts: 7,621

    This may be a stupid question, but are you sure you're not loading the thumbnails of the HDRIs instead of the HQ versions?

  • LindseyLindsey Posts: 2,001

    Try clicking on the DEFAULTS button on the Iray Engine Render Tab, then load one of the presets. Here I did that and loaded the highlighted Sunny A preset of the Skies of iRadiance - Sunny Sky HDRIs for Iray product.  The iray preview shown, showed up within seconds.

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  • SylvanSylvan Posts: 2,718
    Sven Dullah said:

    This may be a stupid question, but are you sure you're not loading the thumbnails of the HDRIs instead of the HQ versions?

    I checked the textures and they are either the 4K or the 8K ones :)
    @Lindsey, I tried that and still the same output. It's quite a memory intensive scene and I am thinking that it's somehow corrupted. I'm going to save out pieces in scene subsets and reload them, hoping to avoid an entire rebuild this way. Rendering with a transparent (PNG) background and adding it with postwork is not an option as the background is a huge part of the scene.

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