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vncnt
04-17-2005, 02:44 AM
It seems to be impossible to use soft-/particle-/cloth dynamics in order to create realistic water (or close). Unfortunately RealFlow seems to be (both financial and functional) overkill.
How about a separate FX plugin for fluids?

Dodgy
04-18-2005, 08:18 AM
Realflow was given away (for non-commercial uses I think) on the cover of 3dworld last month. Don't know if that helps....

It's fully functioning apart from the command line interface, which is quite impressive.

Hoopti
04-18-2005, 03:56 PM
I think that was just the demo.

Hoop

Dodgy
04-18-2005, 05:52 PM
No, you can save and load and import into LW 3dworld claims. I haven't tried it myself, but apparently it is fully functioning.

MrWyatt
04-19-2005, 05:28 AM
it is fully functional however it pops up a screen asking you if you want to buy a license about every 5 minutes, that you have to click away in order to procede the solution, which stops calculating when the window pops up. also this window has two buttons, one buy license button and one deny button. these two buttons switch sides each time the window pops up so you really have to watch out where to click cause the corner that says deny will next time say buy license and start a webbrowser loading the purchase page of nextlimit. If you only got simple setups it might be actually worth using it, but in the tutorial on how to use it (3dworld) states that the calculation had taken over 10 hours to finish. imagine waiting half a day infront of your computer to watch a 400 frame simulation slowly progress and stop every 5 minutes because of a popup, that you have to close, each time with a different button and hit ACTION again for the simulation to go on. imagine doing that tutorial for real with the demo. will anyone sit thru this for 10 hours, staring at your screen waiting for annoying popups. I know I wouldnīt. I guess the maker of the tutorial also had a license and went of to bed for a long night of sleep while the computer was doing itīs thing. next limit isnīt a bunch of naives. they know exactly that such a popup will bring people to the conclusion they should buy a license pretty darn quickly, because for quick little tests that donīt need much calculation it might do the trick, but for serious simulations the demo version isnīt going to satisfy anyone.

beverins
04-19-2005, 08:18 AM
I second the nomination for fluid dynamics in LW. I think that would complete their Dynamics FX suite, and does open up a whole new area of possibilities.

Besides, the interface for Realflow is one of the worst ones I've ever seen... confusing and almost completely non-intuitive. Not to mention that the support from the developers consists of... well... they don't have any, really.

vncnt
04-19-2005, 11:09 PM
I downloaded RealFlow3. Amazing to see its fully functional. But big projects need long render times and thats where the pop-up screen reminds you in a clever way that you forgot to buy this product. Well, at least you can get a very good impression. But as I said, it has more functionality than I need but basically it's animation capabilities and user interface feel like a LW[0.1] beta version.

I don't want to learn a new user interface. With LW[8] the dynamicsFX are well integrated in the LW[8] user interface. We have particles, we have effectors, we have lot's of motion, we have objects that float on the water surface, we can make waves with displacement Texture + vertical moving null and we can use SoftFX to create waves that somehow never look like water.

What we don't have is a standard preset for water particles and water surfaces, particles that interact with a water surface (making a number of waves, like raindrops or floating objects), nulls that interact with a water surface, particles that make "reflected waves", particles that create "mass" (try ParticleFX with larger sizes, looks like pingpong balls or like glue but never like water), particles that "stick together" (the two interaction parameters are very limited: its glue or it's pingpongballs) -- the only way to connect those particles is to create very large hyper voxels, creating long render times -- and particles that create realistic splashes.

Someone (a programmer): take a look at RealFlow3 and get inspired to add a plugin "FluidFX", improve the "ParticlesFX" (more interaction parameters), add a simple way in "SoftFX" to grab a vertex with a null and shake it.

erikals
04-21-2005, 01:18 PM
Exper posted link to this guy some time ago, maybe something to concider..
http://panoramix.ift.uni.wroc.pl/~maq/eng/fluid_prg.php

Dodgy
04-21-2005, 05:24 PM
That would be well cool :)

NigelH
04-21-2005, 10:26 PM
I don't want to learn a new user interface. With LW[8] the dynamicsFX are well integrated in the LW[8] user interface. We have particles, we have effectors, we have lot's of motion, we have objects that float on the water surface, we can make waves with displacement Texture + vertical moving null and we can use SoftFX to create waves that somehow never look like water.

We don't have a way of stopping, pausing, and saving a simulation incrementally (like every other simulator on the market). All simulations must be calculated from beginning to end in one session - and for complex, highly accurate simulations, I've found that LightWave is just not up to the task.

vncnt
04-27-2005, 01:46 PM
Exper posted link to this guy some time ago, maybe something to concider..
http://panoramix.ift.uni.wroc.pl/~maq/eng/fluid_prg.php

Oh yes, please NewTek, look at the animated GIF on this page. It looks so much more like water than all my other experiments in LW8.
Hire this person!

Look at these examples: http://panoramix.ift.uni.wroc.pl/~maq/eng/fluid.html

Exper
05-09-2005, 10:03 AM
Exper posted link to this guy some time ago, maybe something to concider..
http://panoramix.ift.uni.wroc.pl/~maq/eng/fluid_prg.phpOh boy!
That was long ago... good memory! :cool:

erikals
05-10-2005, 07:44 AM
hehe, I only got 85 posts here so not too much to remember :)

Actually e-mailed the guy about if he was gonna make a 3D solution (he only shows 2D solution on the webpage). He said that he was going to start 3d fluid project in next few weeks.

Interesting.
Keep a look at his webpage, maybe he'll put up some simulations.

retinajoy
05-10-2005, 07:56 AM
I posted this on cgtalk a while back. This would be very nice:

http://www.cc.gatech.edu/~carlson/

...and some movie examples from above site:

http://www.cc.gatech.edu/~carlson/movies/bunnyside.mpg (2.8mb melting bunny)
http://www.cc.gatech.edu/~carlson/movies/block-splash.avi (divx 4.6mb water)


The full papers :
http://www.cc.gatech.edu/~carlson/p...lson-thesis.pdf
http://www.cc.gatech.edu/~carlson/papers/melt.pdf