Artefacts DOF highlights

[jp3d81]

Hi,

i got some problems in a testscene i set up for an incoming project.
There are artifacts in the highlights no matter how high i set the sampling. The only way to get rid of this is
switch on sub-pixel mapping. Max ray intensity is on, but has no effect. I couldn´t upload the video.
There you would see a extreme flickering in the highlight.

[vlado]

You could try making the sun invisible, or you could make the reflections slightly glossy so that the hilights are easier to sample.

Best regards,
Vlado

[jp3d81]

I already tried that. Did n´t change anything.

[jp3d81]

https://www.dropbox.com/sh/pb91kus38...3l_HRGQYa?dl=0
Here is the animation and my file.

[vlado]

The way I got it to render eventually was to:

a) turn on the "invisible" option for the VRaySun light;
b) set the reflection glossiness of the blue glass material to 0.9;
c) set the refraction glossiness of the blue glass material to 0.9.

This softens the sun reflections/refractions and makes them easier to sample.

Original, where the fireflies will be very difficult to clean up:


Modified, where the sun is invisible and the reflections/refractions are slightly glossy:


I'm wondering whether V-Ray can do this sort of glossiness adjustments automatically...

Best regards,
Vlado

[jp3d81]

Ok, Thanks.

i didn´t play with the refraction glossiness.

[Morne]

I'm wondering whether V-Ray can do this sort of glossiness adjustments automatically...

Best regards,
Vlado

Sounds like a good plan to me