I have an issue I don’t seem to have experienced before.
When I render the foam particles in point mode, I have some strange dark/black areas coming up. It seems to happen in areas where there is a high density of particles, and it doesn’t occur when I render the foam in bubbles or cellular.
And when you zoom in, the issue seems to disappear. I don’t think I ever experienced such a problem with previous versions of Vray/Phoenix
Maya 2019.3.1, Vray V6.00.02, PhoenixFD 5.01.00
I tried, in the phoenix shader, to play with Motion Blur, Scattering, Volume Light cache, size addend, vertical offset. Nothing helps. The only thing is that when I reduce the count multiplier, it seems to damp the issue.
I’m still testing.
great !
If it can help: I was also trying out to export particle RGB on this simulation. In the Phoenix particle shader, it is not used, because I couldn’t find any good way to use it. But maybe it has something to do with it.
While we’re checking the scene, you can try the following steps as a workaround:
- set the Scattering to Approximate+Shadows;
- keep the Volume Light Cache enabled;
- decrease the Point Radius (I tried with 1.5);
- decrease the Shadow Strength (I tried with 0.6).
