Rain Drop - Water splash

Discussion about fluid simulation in Realflow 4
orozcoje
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Rain Drop - Water splash

Postby orozcoje » Wed Dec 09, 2009 5:11 pm

Hello Vitor,

If you already know the shape that you want, one way to solve this its to add some object to the scene and use it to create a specially shaped force field. This object its going to be like a shell so the splash wont pass the object limits. you can use an object field daemon to affect the motion.

it's like sculpting the fluid motion with forces.

Probably you will need a bit of scripting as well..

Cheers..

orozcoje


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Vitor Teixeira
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Rain Drop - Water splash

Postby Vitor Teixeira » Wed Dec 09, 2009 5:23 pm

starlighter I´m using a fillObject. At the moment I've inserted a k_speed and I'm letting the simulation run until I have "no" movement. Don´t you think that doing this the particles will assume a more chaotic effect?

I´m using jittering to create a more random particles and with the k_speed I'm calming down the animation.

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Vitor Teixeira
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Rain Drop - Water splash

Postby Vitor Teixeira » Wed Dec 09, 2009 5:25 pm

Thats a good idea Orozcoje. But I'm a little newbie here. Could you explain a little better how can I could do that?

Have you seen these examples:
http://fusioncis.com/research/splashes/

Do you think they do it by that way?

shaun_michael
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Rain Drop - Water splash

Postby shaun_michael » Wed Dec 09, 2009 8:00 pm

Vitor Teixeira wrote: Thats a good idea Orozcoje. But I'm a little newbie here. Could you explain a little better how can I could do that?

Have you seen these examples:
http://fusioncis.com/research/splashes/

Do you think they do it by that way?

The examples you're seeing on the Fusion website would have been done using python scripting - without a shadow of a doubt. This is route one if you know python. Other ideas have been mentioned but you wont get what you see on the Fusion site without python.

starlighter I´m using a fillObject. At the moment I've inserted a k_speed and I'm letting the simulation run until I have "no" movement. Don´t you think that doing this the particles will assume a more chaotic effect?

I'm wondering whether you may be getting confused here. When you add the particles at the very beginning of your sim and let them settle, whether they have random/jitter whatever when you first lock the sim and start settling, the very act of settling orders the particles according to the forces in your scene, not how you started them off. Maybe I mistake what you're saying, but I don't want you to be chasing red herrings here.

Shaun

shaun_michael
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Rain Drop - Water splash

Postby shaun_michael » Wed Dec 09, 2009 8:05 pm

I'm working on something similar, but am using purely scripting. It's very much a work in progress and i have nothing to share right now, but there is only a script and some particles in this scene.

Splash wip

Shaun

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ChristianZ
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Rain Drop - Water splash

Postby ChristianZ » Wed Dec 09, 2009 8:23 pm

shaun_michael wrote: I'm working on something similar, but am using purely scripting. It's very much a work in progress and i have nothing to share right now, but there is only a script and some particles in this scene.

Splash wip

Shaun

Nice ! That comes very close to the famous crown shape :cool:
RF10 standard + RFC4D

shaun_michael
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Rain Drop - Water splash

Postby shaun_michael » Wed Dec 09, 2009 8:26 pm

Thanks Christian. It's getting there and I know what I still have to do, so hopefully soon I'll have something better to show.

Shaun

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Vitor Teixeira
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Rain Drop - Water splash

Postby Vitor Teixeira » Thu Dec 10, 2009 12:45 am

Unfortunately I've never worked with python.
Is it to hard to obtain something like that?
Do you think that with 1 month of hard study I could get there?

I wasn't expecting to use python to achieve that result.

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Vitor Teixeira
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Rain Drop - Water splash

Postby Vitor Teixeira » Thu Dec 10, 2009 2:24 am

I've got this for now.
I think I need a tank with more particles - water.

shaun_michael
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Rain Drop - Water splash

Postby shaun_michael » Thu Dec 10, 2009 6:22 am

Do you think that with 1 month of hard study I could get there?

I'm sure you could. Get stuck in to the pdf.

Shaun


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