Have multiple sims calculate one after the other in sequence (eg; cascade setup)

[deano]

In a cascade setup (lets say waterfall), am I correct in my method of running the upper simulation first, then the waterfall simulation, then the pool into which the waterfall lands, in that order? If so, is there a way to have each simulation begin automatically when the previous sim is complete, in the correct sequence?

Thanks!!

[tashko.zashev]

Hi,

You can check this video tutorial for cascade simulations : https://www.youtube.com/watch?v=L5csiIEqLV4
There is a very important step (6:20) in this video, where the Phoenix property "Solid object" is deactivated for the simulator that has been already simulated.

About the second part of your question, actually this is a planned feature and should be available in one of the next Phoenix releases.

[Svetlin.Nikolov]

Additionally, you could make one sim begin after the other using maxscript, check http://docs.chaosgroup.com/display/P...n+to+MaxScript.

Basically you need to call A_StartSim on the next simulator in OnSimulationEnd of the previous.

[deano]

Thanks to you both for the replies. The scripting is like Greek to me, but I'll give it a go - I have multiple small waterfalls entering a pool over 1100 frames so not waiting for each to complete using the script would be great, but I may be asking for more specific help soon

reading both replies, do I understand correctly that I need to manually deactivate the "solid object" property of the previous sim before running the next one - so using the script wouldn't help then - yes/no?

[Svetlin.Nikolov]

Don't worry about that, there's no problem to deactivate "Solid" on the first simulator(s) before it's simulated.

[deano]

Ok, great, that helps - thanks!

I looked at the PhoenixFD script...but am not sure what I'm looking at :/ If I need the following sims to run in sequence -- PHXpool_upper...PHXfalls01...PHXfalls02...PHXfalls 03...PHXpool_lower (I have an upper and a lower pool, with 3 waterfalls going into the lower pool), could you help me with what a script would look like to get them to run sequentially overnight. Thanks in advance for any help with this.

[Svetlin.Nikolov]

Yup, no problem: so in the script of PHXpool_upper, find OnSimulationEnd, and make it look like this:

fn OnSimulationEnd=(
sim = getnodebyname "PHXfalls01"
select sim
A_StartSim sim
)

You need to do this for the next sims too, substituting in the name of the simulator that follows.

[deano]

Thanks very much for your help - I will try it out.

[Neilg]

Yup, no problem: so in the script of PHXpool_upper, find OnSimulationEnd, and make it look like this:

fn OnSimulationEnd=(
sim = getnodebyname "PHXfalls01"
select sim
A_StartSim sim
)

You need to do this for the next sims too, substituting in the name of the simulator that follows.

this is more straightforward than I expected, I've always just kept an eye on things/remoted in. will give this a shot too!