Making a teardrop hit a sink and Stay in a teardrop shape.

Discussion about fluid simulation in Realflow 3
SpasticKitty
Posts: 3
Joined: Tue May 22, 2007 11:04 am

Making a teardrop hit a sink and Stay in a teardrop shape.

Postby SpasticKitty » Tue May 22, 2007 11:12 am

Hi guys

Working on a water drop falling into a sink.
I have the scene ready to go, i have my water drop created and my sink in the scene.

The sink is a collision object to the water drop.
There is an attractor pulling the drop to the centre drain whole.

my drop falls and spashes apart , runs down the sink and into the drain, however the drop is meant to be a single tear, hence when it hits the sink , it must retain its drop form and rahter "roll" down the sink as appose to breaking apart or forming a flat liquid object running into the drain.

THE QUESTION: How would i retain the tear drop shape once the tear hits the sink???

using REalflow3
Properties of the drop:
Sphere emmiter
Type: liquid
Res:3
Density: 1000
int, ext, 1.0
viscosity: 3.0

Thanks for the time
Stu


shaun_michael
Posts: 4766
Joined: Sun Sep 10, 2006 8:04 am

Making a teardrop hit a sink and Stay in a teardrop shape.

Postby shaun_michael » Wed May 23, 2007 9:45 am

Just a quick question:-

Have you thought about approaching this using soft bodies rather than particles?

I can't remember how reliable soft bodies were in RF3, but if you want to keep the shape, this would seem the easiest route to take. model a teardrop and make it a soft body and see how you go with that. The difficult part will still probably be post-collision, stopping it from vibrating and just trying to keep it smoothly running down the sink.

Just a quick thought.
Shaun

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zorcad
Posts: 255
Joined: Sat Apr 07, 2007 5:48 am
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Making a teardrop hit a sink and Stay in a teardrop shape.

Postby zorcad » Thu May 24, 2007 7:25 am

Hi,

you can do the conversion of the teardrop from liquid to elastic. And then make the settings of the elastic, so that it doesn't loose it shape.

You can do the conversion from liquid to elasitc by using a script of solidification by beablo or shaun version of elastic to liquid. Just modify the precedence.


Do tell about the output and also if possible you can post a snap of this.

Sorry, I just saw in your last lines, you are using RF3. Why don't you try a demo of RF4 if you are short of time.

regards,
www.zorcad.com

shaun_michael
Posts: 4766
Joined: Sun Sep 10, 2006 8:04 am

Making a teardrop hit a sink and Stay in a teardrop shape.

Postby shaun_michael » Thu May 24, 2007 8:18 am

Why don't you try a demo of RF4 if you are short of time

Thats a good point if the 50,000 particle limit suits your needs. You can then take advantage of the scripting options.

Shaun

SpasticKitty
Posts: 3
Joined: Tue May 22, 2007 11:04 am

Making a teardrop hit a sink and Stay in a teardrop shape.

Postby SpasticKitty » Fri May 25, 2007 7:44 am

Awesome thanks :) Ok that elastic idea sounds really good! going to try it out today, think it might be usefull in other things i`m doing too. thanks guys will post again with results and how the advice helped!
Kind regards
stu

SpasticKitty
Posts: 3
Joined: Tue May 22, 2007 11:04 am

Making a teardrop hit a sink and Stay in a teardrop shape.

Postby SpasticKitty » Fri May 25, 2007 7:58 am

shaun why do you suggest RF4?
is it more stable cause i find RF3 crashes so often!

shaun_michael
Posts: 4766
Joined: Sun Sep 10, 2006 8:04 am

Making a teardrop hit a sink and Stay in a teardrop shape.

Postby shaun_michael » Fri May 25, 2007 8:36 pm

Well yes I have found it more stable than RF3 was, not rock solid, but certainly considerably more stable (as long as you dont make it go funky with extreme settings), but as zorcad says you might be able to tackle your particular scene using RF3's scripting capabilities - something that is not available in RF3.

If your particle count is going to be less than 50, 000 then you can use the demo version (although I dont know if there are any other restrictions - perhaps someone can enlighten me on thatone).

RF4 is also reported to be faster.

So, just a few good reasons why RF4 would be a good move.

Good luck, let us know how you get on.

Shaun


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