Hi, I have problems in a scene which unfortunately I can’t share.
I get a clean rgb beauty but the full light selects contains tons of fireflies.
It seems to only occur when I render it via bb. On my workstation everything looks fine.
But via bb even my workstation has the problem.
Its pretty much standard render settings with animation settings for the Light Cache.
I use a vray camera with an aperture image.
Edit: I sent some of the exrs to the support. The Ticked ID is:[FONT=Times New Roman] **223-156-128 **[/FONT]
Tested without luck:
-Adaptive lights vs. Full Light evaluation.
-Dwaa compression vs. zip compression.
-Vray Cam vs. Max Physical Cam.
-Aperture image on/off.
Meanwile I continue testing.
Hiding all geometry exept the backplate let the issue disaspear.
Turning on MTL override (grey mtl with low 0,4 glossiness) also worked.
Yes, unfortunately I still had issues.
I mailed you a part of the scene which I think I can share.
Afterwards I continued testing.
And I think I finally found the real culprit!
It seems to be the “affect all channels” option in the reflections section of the materials.
It somehow amplifies the reflection and specular on Full LightSelect elements.
This must be a bug.
Hey I’d like to know if that’s a bug that will get fixed of if a fix is impossible for some reason?
I’d love to use that option along with LightSelect.
Also I’m wondering If it could be possible to get a checkbox in matte elements for making only them behave like “affect all channels” is set in every Material.
I think that would be quite useful.
It’s not a bug; V-Ray calculates the lights and the pixels so that the RGB looks good; sometimes individual lights might have fireflies which however do not influence the final pixel value too much when averaged with all other samples in that pixel.
With that said, this will be important to resolve when we implement the Light Mix. For the moment I’m planning a firefly removal pass for the V-Ray denoiser.
