How do I get rid of all these Fireflies ?

[fixeighted]

Yes, you're right of course, thanks.
I was confusing this with a problem I had rendering a regular sequence with standalone last year.
This was the post and I did find a 3rd party GUI which also will do this...though not sure why this isn't implemented
within Vray itself
https://forums.chaos.com/forum/v-ray...ne-help-please

[JD3D_CGI]

The vray denoiser standalone can't take out these fireflies.

I have had better luck using the Intel Denoiser... even though I can't run it in post, it seems to do a good enough job for this scene.


Chaos group need to fix this - Tech Support told me that using light materials and fog and animation was some fringe case and they need to fix the sampler.

[fixeighted]

Aah ok, sorry that couldn't help....will have to leave it to dev types to address

[JD3D_CGI]

The vray densoiser tool needs to remove fireflies bettter.... and it also needs to be able to apply lens effects.

Right now, applying lens effects using the command line is a true pain in the ass.

While we are at it, vray denoiser needs to save out EXRs with compression.

[Micha]

I have problems with fire flies at V-Ray for Rhino too and found that they are caused by area lights. The problem of the fire flies is increased by the V-Ray denoiser, each fire fly get a rectangular mark around. So, we have two problems - fire flies and the V-Ray denoiser. (The Intel denoiser blurs the scene to much. The Nvidia denoiser isn't 360° seam aware, not useable for panorama renderings.)

[Micha]

I did some more tests and I found - the fire flies are caused by area lights in RTX mode. In CUDA mode this fireflies are gone. Interesting is that the fire flies appears at higher render passes if the noise is gone the fire flies come. I sent a test scene per email - it's ticket number #25272.

I hope it can be fixed soon. Good luck.

[Micha]

slavcho.brusev Could you check my example file please? I'm very curious for a fix of the fireflies since it cost a lot of render time and setup trouble to avoid them. I'm glad that I was able to get am example scene ready.

[jeremiah_jones]

The firefly issue is one that really needs to be addressed in future builds. Any update on this would be greatly appreciated! One question that I have is if the denoising engine is set to Intel and the mode set to only generate render elements can the standalone denoiser still process the images in post and remove the fireflies?

[marius_tipa]

Corona and V-Ray are 2 genius solution for rendering, extremly power engines with a user interface more and more friendly. I don't understand way they can't solve this fireflies problem once. We are talking about a very bright pixel in the middle of a normal image. It is so hard to make an interpolation between neighbour pixels? Both engines are unreliable for me because without any reason you can get fireflies. I have submitted a ticket. Done Global Switches and Max Ray intensity done Intel Denoiser done Bucket Image sampler - there is no way to get rid of them. I have placed in the scene a Chaos HDRI illuminating a Chaos Ocean sand the materials are from Cosmos with Glossiness 0.8 so where can be the problem!?