Hi all, Got a scene that has fireflies on the reflections… not had to deal with this for a while. The render is at 4000px (smaller and you don’t really see it as bad) The render only has the HDRI active at the moment (while I trouble shoot). I am using global sub divisions… which are low for spe…

Do these go away if you disable the “Reflective GI caustics” parameter in the GI settings? You may need to switch the rollout to “Advanced” view to see the option. Best regards, Vlado

ahhhh.. away to check as I we normally hide the glass at the windows from GI… which check this and re render…

alas… not worked.. i’m pretty stumped on this.. tried most of the usual suspects in this kind of problem… [fireflies 2.jpg]

Ok then I will need the scene somehow to figure out what’s wrong. Best regards, Vlado

It’s a heavy one.. I haven’t really working with the new vray 3.3 settings.. so reading up on this. It’s a typical HDRI through window’s issue, I would normally have around 64samples on the hdri then use adaptive sampling and noise threshold to remove. I will upload the scene and wetransfer to you.…

[image] Vray curvature texture in maya (concave/convex)? I will upload the scene and wetransfer to you.. what’s the best email to send it to? It’s best to send it to support@chaosgroup.com and mention this thread. Best regards, Vlado

Check that the material on the geometry which gets speckles is not ggx, if it is try switch it to blinn. Also generally speaking, small bright objects, like point spheres, or any small geometry with self illumination may cause this since its hard to indirectly trace that kind of source. See if you …

yep… I was worried with was something scene dependent.. then checked another project we were working on and I got the same… so reset back to defaults and I think I have found out that filter maps was ticked but filter for GI in the image sampler was not checked… doing tests at various test now… loo…

actually… nope… that didnt work at higher resolutions… 4500px plus!

Is your hdr high res with some kind of hot spot like a sun? its also possible if you have a dot in the hdr that’s really bright it will cause this.

HDRI and firelies with vray 3.30

V-Ray V-Ray for 3ds Max Issues

svetlozar.draganov March 31, 2016, 3:06pm 14

Did you send us that scene to support@chaosgroup.com?

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HDRI and firelies with vray 3.30

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