IES white sand, how fix it?

[AlexBBM]

Hi all. I used IES light, on render i see white sand. How I can fix it?

[AlexBBM]

In KS not many settings, but I did not find a solution, even with bruteforce (raising samples 128, increasing samples of metal and surface 128, increasing bounces to 24).

More ideas?

[INNEO_MWo]

There are a lot things that can be done.
Sorry that I have no time to write some down.
But search for fireflies in this forum and you'll find tons of tips.

Cheers
Marco

[AlexBBM]

Thanks for the term fireflies. I found your answer here

https://www.keyshot.com/forum/index.php?topic=21326.msg90713#msg90713