HOME | DD
wonderwhy-ER β Flow 1.1
by-nc-nd
Published: 2009-11-28 18:05:13 +0000 UTC; Views: 28632; Favourites: 228; Downloads: 285
Redirect to original
Description
Original work and codeSo I stumbled on this some work at wonderfl.net some time ago and wanted to play with the code. Seems it is a ported to AS3 from Processing experiments. Works pretty fast but it does not behave as good as I would like...
Changes I made to the code
Here first version. Did not do much. Made it bigger, added my FPS counter, changed drawing methods, made some optimizations and made it show 20K of particles instead of 6kin original, made it repeating (left side connected to right, top to bottom, particles reappear on other side of the screen when they leave it). Also added "time to live" to particles so that when it expires they reappear in other random place. This way no space is left without particles for long (something I did not like in original version).
Planing to play with it more adding some effects, colors, objects you can drag to stage (particle emitters, walls, constant pressure or speed fields) etc etc. Will see how it goes
Controls
Just click and drag to create wind.
Double click to restart.
Update 1.1
Added colors and blur effect, become little bit more heavy on CPU. Fixed little bug with particles kind of teleporting when crossing screen border at high speed.
Related content
Comments: 122
Like stirring the creamer in your coffeeΒ
π: 0 β©: 0
and whats really col is if you just go crazy all over it until you almost cant see anything and watch the whole thing come in its so cool
π: 0 β©: 1
I has made something with this!
Look look! [link]
Isnt it pwetty
π: 0 β©: 1
after so many years, i still LOVE your work. inspiration is timeless.
π: 0 β©: 1
Haha I am "playing" with this right now [link] 
I guess you would like it too
π: 0 β©: 0
Ehmm sorry I don't understand
π: 0 β©: 1
He said "wow, really cool, dude!" Β
π: 0 β©: 0
Actually, if you drag it from bottom to top, it looks like a sped-up nuclear bomb explosion
π: 0 β©: 1
Yeah its pretty cool
π: 0 β©: 1
I know. The whole force map concept is extraordinarily powerful. currently I'm using parametric equations to generate a force based on position, but it's rather unwieldy.
π: 0 β©: 1
Yeah... Basically that's all there is in particle physics, particles and force fields
π: 0 β©: 0
That is really cool, if the Painter Program had a brush tool like that which could be frozen just when it looked right.
π: 0 β©: 1
Yeah some procedural and/or physical brushes that are interactive could make painting both more fun and more productive. But it will also lengthen learning time a lot...
π: 0 β©: 0
cool thing. does it generate something like a "wind map" or do the particles ask each other for collision or something like that?
π: 0 β©: 1
Yeah wind/pressure map with which particles interact. No direct interaction.
π: 0 β©: 0
wow, I didn't think flash can handle things like that, always surprising
I never tried anything particle related myself though.
Love it.
π: 0 β©: 1
Well it is a very simple version. It's just a speed field... No real flow and inertia 
π: 0 β©: 0
Is there any way to make the spawning particles maintain the speed of the particles around them? I think they're kinda slowing down the other particles as they appear
This is awesome though, you never cease to amaze me
π: 0 β©: 1
Mmm no they are not slowing neighbors. They actually do not interact at all. They are just effected by speed field. Tough their speeds are reset when they reappear.
π: 0 β©: 1
Right so they do interact with eachother through the speed field, correct? So when the new particles spawn with 0 speed, wouldn't that cause particles around them to slow down too?
Maybe I don't understand the math behind this haha I love it though
π: 0 β©: 1
No particles do not effect speed field back
Hmm tough may be I understand what you mean... You mean that it slows down eventually?
π: 0 β©: 1
Yeah it looked like the speed field was slowing down because of spawned particles but it sounds like it just looked like that because of automatic friction..
Maybe add a parameter on here to adjust the speed field dampening, just for fun? I think it's fun to see perpetually moving flows as well (for example you click and drag once and then sit back and watch it for the next ten minutes)
lol yes it just appears to be caused by the other particles but now I think I see what you mean, it's just an illusion lol
π: 0 β©: 1
I was not even seeing that because I know a reason it slows down... Unfortunately what you described is not possible in almost all fluids... Here I mean that they constantly exchange with energy and seek equilibrium so any oscillations may be slowly but dissipate trough whole fluid.
Actually my first tough was to make it dissipates slower if possible but first tries failed. Model is very simple and there isn't much to change there... May be later will take a look again at what I can change...
π: 0 β©: 0
works pretty damn well! i'm viweing on my laptop, which has a pretty bad GPU, and it looks great. you sir, are a flash wizard!
π: 0 β©: 1
GPU has nothing to do with flash at the moment. Or almost nothing.
π: 0 β©: 1
hmm; what makes flash programs run faster/slower on different machines? is it CPU or RAM limitations?
π: 0 β©: 1
Hmm actually there are other problems too. For example in IE flash runs slower for no reason... As for CPU/RAM I think both have impact but CPU is more important I think...
You have some problems? I run in on kind of old notebook(3 years old) and it runs fine here.
π: 0 β©: 1
ok thanks! i haven't had any problems with your stuff. you are very conscious of reasource efficiency, but i'm not so good at that! i have problems with stuff i make running badly of my friends' computers. right now, a game project i am working on is in danger of being scrapped for being too reasource heavy.
π: 0 β©: 1
Ouh
π: 0 β©: 0
Holy moly man, this is incredible. I wish I could have this on a touchscreen hanging on the wall, like an interactive piece of art.
π: 0 β©: 1
Hehe may be some day you will
Lol like ordering it as a "print"
π: 0 β©: 0
So it has colour now and the particles and HUD has filters (glow and... blur?) on it. Nice
Do you specialize in AS3, or do you specialize in ECMAScript in general, or do you do in-general multimedia programming?
π: 0 β©: 1
Mmm. Well I do know other languages like Java/C# etc but for last 4 years I mostly work with AS3. Thinking on starting learning Unity 3D tough.
π: 0 β©: 0
| Next =>