realistic beer foam

[Ivaylo Katev]

well, but when you use the preset option, it shows what parameters are changed, so we can reveal the mystery just applying the preset over a manually copied simulator and seeing the changes

[omere]

can you do that and reveal this mystery?

[Ivaylo Katev]

give me the manual copy and i will do it.

[omere]

no need.
just create a new liquid simulator and type in the parameters from your latest liquid simulator (the one that you loaded the preset into)

[omere]

i have applied your preset on the manual version and those are the changes that it reports:

zmr 0 -> 24
spflimit0 2 -> 8
velvort 1 -> 0
vorticity 0.3 -> 0
cooling 0.05 -> 0
lqsharpness 0.5 -> 1
drying 10000 -> 0.01
spbirth 10 -> 5
spfreefall 0 -> 0.5
mistdrag 1 -> 30
spsplit 0.5 -> 0
spstick 0.5 -> 0
limitby 1 -> 0
prealloc_mem 1 -> 0
adapt_s 0.02 -> 0.1

[Ivaylo Katev]

this is the reason: spflimit0 2 -> 8
this is the spf parameter, it would describe it as the most important parameter for the simulations
the rest of the differences are not active, for example spbirth is the splash birth factor, but in this scene the splash is not enabled and the value is ignored.

[omere]

is this spflimit exposed to the user? can i change it manually?

[Ivaylo Katev]

my mistake, it's not the spf, it's an old param that is not used anymore.
so, the mystery remains, i will investigate it after the holidays

[omere]

Thank you.
i'm excited. it feels so close to be solved.

[omere]

did you had any progress with this?

[Ivaylo Katev]

not yet, but we are starting to work on this today

[omere]

is there maybe a separate SPF for the foam?
i'm trying to get a better more accurate behavior of the foam, but when i increase the SPF in the dynamics, the liquid is going crazy and exploding.
can i control the the foam simulation quality separately?

[Ivaylo Katev]

can you attach the scene with exploding liquid when the spf is increased? the usual effect is the opposite one, the liquid gets smoother with higher spf , this sounds very strange

[omere]

here is a link to download this scene:
http://we.tl/RgLjoaxO6q

[omere]

did you had a chance to check it?