V-Ray Sun - The Phase function

[Mnietek2707]

Does this feature work at all? If yes what is the impact of this on rendered image? If no - why is this present in the UI?
I try with IPR and with production, with CPU and GPU - no luck.

[hermit.crab]

Are we talking about the Clouds' Phase X/Y?

[Mnietek2707]

Are we talking about the Clouds' Phase X/Y?

.............
yes

[hermit.crab]

Render an animation where the Phase is keyed and you'll see the effect.