performance issues

[johannes_jungreithmeier]

Hi,
I'm new to Phoenix, and struggling with simulation performance

I read through some documents, and had a look at this beer tutorial (where the performance is really great):
https://www.youtube.com/watch?v=Kc3VxiYkZmk

It's a quite old tutorial, but I got the idea of scaling up the objects, to be able to increase the cell size.
Also I got it with the simulation steps per frame.

But anyhow when I just do a standard beer setup (out of the box), the performance is somewhere around 0,01M vox/s. I can't do a simulation this way...

I'm using:
3dsmax 2023
Phoenix 5.01.00
Win 10 Professional
Intel Xeon CPU E3-1231 v3 @ 3.4 GHz, 4 cores
NVIDIA GeForce RTX 3060

But even using a high-end PC doesn't change much.

I'm talking about simulation performance, not rendering!
I don't know what I'm doing wrong... hopefully somebody in here can tell me...

(screenshot and max-file in the description)

Thank You!

[Svetlin.Nikolov]

Hey,

Check out the Cache File Content box in the Simulation rollout - it show that you have 26 liquid particles, but also half a million foam particles.

You should go to the Foam rollout and reduce the Foam Amount or increase the Foam Birth Threshold so less foam is getting born. The actual foam simulation could be slow in case you are using a high value for the Foam Volume option.

Hope this helps, cheers

[johannes_jungreithmeier]

Thank's a lot. That's much better
I'm wondering this is a standard setting...

[Svetlin.Nikolov]

I'm afraid there is no good default for the foam settings since they depend on the scale of the scene, but it would always be a good start to use a toolbar preset and start tweaking from there - it would adjust all options according to the scene scale so there is nothing excessive.