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Help Please! Dirty Clothes

PatroklosPatroklos Posts: 533
edited April 2016 in Technical Help (nuts n bolts)

I have been working on a scene for days.

Suddenly all clothes in the scene appear dirty, no matter what light used, what angle the shot, what colour shader.

I have tried just about everything, then when I changed Instancing Optimisation from Memory to Speed, the marks showed up, then faded out.

If I switch back to Memory, the marks do not fade.

Each time Iray refreshes in the viewport the marks appear & then fade.

Shutting Daz down and restarting makes no difference.

I have attached a copy of a quick render to show the marks.

 

Dirty Clothes_99%.jpg
1000 x 1000 - 240K
Post edited by Patroklos on

Comments

  • Richard HaseltineRichard Haseltine Posts: 101,010

    That's probably a sampling issue causing some kind of Moire fringing - it fades as you wait becauses more iterations fill in the missing transitions. It's very common to get odd effects like that when previewing or in the early stages of a progressive render of a fine pattern. As long as the final render is OK that's really all that matters.

  • PatroklosPatroklos Posts: 533

    Thank you, however the render pictured here was a completed render at around 99% set to memory.

    Does what you have said still hold good in this case?

  • Richard HaseltineRichard Haseltine Posts: 101,010

    Well, that is odd. Make sure there is only one copy of each item, if you have two loaded in the same place and pose they may interfere.

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