Hello

I use the script: MediumBeerFoam

Can you post the code for the if statement to check what object the fluid is colliding with? I´m have no experiences with python.

wietob


Code of Medium BeerFoam:

def onSimulationStep():
    from random import randint

    # VARIABLES
    liquid = scene.getEmitter("beer") #set the name of your chosen liquid emitter (liquid type)
    foam = scene.getEmitter("foam") #set the name of your chosen foam emitter (liquid type)
    liquid2 = scene.getEmitter("beer2") #same parameters as liquid

    # liquid -> foam
    LVelThreshold =2.8 # controljs the amount of foam particles forming (raising value = decreasing amount)

    #foam -> liquid : two conditions to be met
    FVelThreshold =1.5 # Min velocity of foam particles. Minimum velocity particle should have to stay as foam particle (Decreasing value = more foam particles staying)
    FHeightThreshold = 0.3 # Max height of foam particles (Raising value = more foam particles staying)

    # loop through liquid particles, if colliding and over a certain velocity converts them into foam
    particles = liquid.getParticlesColliding()
    for particle in particles:
        pos = particle.getPosition()
        vel = particle.getVelocity()
        if particle.getVelocity().module() > LVelThreshold:
            foam.addParticle(pos, vel)
            liquid.removeParticle(particle.getId())

    # loop through foam particles, if under a velocity value and height converts them back to liquid
    foamies = foam.getParticles()
    for foami in foamies:
        FPos = foami.getPosition()
        FVel = foami.getVelocity()
        FHeight = foami.getPosition().getY()
        # Note: if your vertical axis isn't the Y-axis.  Change the getY to getX, or getZ as appropiate.
        if (foami.getVelocity().module() < FVelThreshold) and (FHeight < FHeightThreshold):
            liquid2.addParticle(FPos, FVel)
            foam.removeParticle(foami.getId())

I encountered a similar issue a year ago and was able to use this snippet of code to make it work.

collobj = particle.getCollidingObject()
        collobjname = collobj.getName()
        if collobjname != "spout":
# convert the particle to foam

The "spout" is more of a dropper which helps sculpt the fluid rather than just emitting directly into your beer bottle.

Hope that helps.

wietob wrote:

Hi,

lukeiamyourfather you are right - it works!
You forgot only the brackets(red).

ignoreObject = scene.getObject("bottle")
if (particle.getVelocity().module() > LVelThreshold) and (particle.getCollidingObject() != ignoreObject):

I´m really happy - thanks a lot!!

wietob

Good call! Sorry I didn't test it out first (didn't have RealFlow installed).