Particle Flow Discussion

[Bobo]

Originally posted by BigRanS123
Did you use spring weights to create the drag in the hair?

Nope, straight out-of-the-box Flex modifier.

[capt_chuck]

If I saw folks 20 pages of posts ago saying they were late to the party… then I guess I’m well beyond that

Anyway, I read all the way through this thread (and what a great thread) and wanted to share my laminar fountain attempt

laminar fountain

I didn’t know the name was “laminar” until I started looking for reference video, but it’s the “leap frog” fountains like you see at Disney World etc. Never did find a good video showing what the splash looked like, but as I recall they were pretty small.

[PiledotNET]

Sorry Bobo, I didn’t get it.

Where do you’ve applyed the modifier?

I’m having a strange problem, when I move my base object (sphere) particles stay in place.

No results here yet.

[Rens]

First I thought he used some kind of script that would rotate the hairs around their base point when the speed changes, so more speed, more rotation or something like that.

I applied the flex to the original object, so it would be copied to the rest. I used ‘lock on emitter’ in position object. The hairs will turn, but will eventually turn into the teapot…

Who is nearing the solution to this riddle?

[Bobo]

Originally posted by Rens Heeren
[B]First I thought he used some kind of script that would rotate the hairs around their base point when the speed changes, so more speed, more rotation or something like that.

I applied the flex to the original object, so it would be copied to the rest. I used ‘lock on emitter’ in position object. The hairs will turn, but will eventually turn into the teapot…

Who is nearing the solution to this riddle? [/B]

You are VERY close.
Just one step missing…

Bobo,
The Teaser

[KaMe]

Ok.

I uploaded the file to Deetees pfupload:

LINK

Also, if you are having trouble with WMP, here is the same file with a .video extension (just rename it to .avi):

LINK

(Deetee, you can delete the file named Kame_TornadoSmallDivx.avi in the pfupload, its not working )

And, here is my try on the hairy teapot riddle:

LINK

Its just a script operator that controls the Box bend modifier angle. At the moment it just works with Z Movements, but i’m still working on it…

Or, you could just create a box with a flex modifier, instance it ‘n’ times, use particles to align them to the Teapot normals, and then just link them to the Teapot.

[Rens]

No, linking doesnt work somehow.

I have the base of the hairs (tapered prisms) moving with the teapot’s surface, but the rotation stays the same, so they will eventually stick through the teapot…

• oh wait, linking the original prism to the teapot so it will inherit it’s rotation, I think that’s it… (or did you mean that KaMe?)

[deetee]

If the hairs turn into the teapot, cant you then make a UDeflector and add the tpot in the flex? So it bounces off? I dont dare to open Max today. Have a project I have to deliver tomorrow, so havent had any time testing anything

[KaMe]

Well… it works for me…
And yes, you can add a UDeflector. You can add gravity to.
Here is a quick preview:

LINK

[Bobo]

Originally posted by Rens Heeren
[B]

• oh wait, linking the original prism to the teapot so it will inherit it’s rotation, I think that’s it… [/B]

BINGOOOOOOOO!!! :applause:

[deetee]

Hold on now… Linking the prism to the teapot? … Can someone post a scene soon… Dont tempt med to open max! please!

[KaMe]

What i did was:
Use the same Flow as you used to align the particles to the teapot.
Create n boxes with flex (n = number of particles)
Use this simple script to align the boxes to the particles:

on Proceed pCont do 
(
	barr = $fbox* as array
	count = pCont.NumParticles()
	for i in 1 to count do
	(
		pCont.particleindex = i
		barr[i].transform = pCont.particleTM
	)
)

The boxes name must start with fbox.
Now just turn off your flow and link the boxes to the teapot :]

Worked for me…

Edit: Ok, now i realized you don’t need that. You just have to link the original ‘hair’ to the Teapot and done…

[Rens]

Originally posted by Bobo
BINGOOOOOOOO!!! :applause:

Bingo shmingo
Not there yet completely, so you’ll have to wait a little bit longer

I still can’t get them to inherit the rotation, this is what I did after I made the same setup as Bobo’s; the one with the static hairs:

• Animated the teapot so that it rotates very nicely indeed;
• turned on ‘lock on emitter’ in the position object operator;
• gave the prism/cone an orientation constraint and linked it to the teapot, the hair now has the same rotation as the “hairy potter”;
• I even turned on ‘animated shape’ in the shape instance operator;
• dragged the slider and… AGONY! It’s horrible, I just know there’s Some Little Thing I Forgot…

Is there something I did wrong? It seems to me the prisms on the teapot should inherit the rotation from the original one like this… hmm.

[PiledotNET]

Niiiceee, greate game guys!

What’s next?

[EDIT] 3 max files with my static hair tests:
http://www.redpixel.com.br/forumajuda/redpixel-cabelo3dsmax6.zip

ref:

[Bobo]

Originally posted by Rens Heeren
[B]Bingo shmingo
Not there yet completely, so you’ll have to wait a little bit longer

I still can’t get them to inherit the rotation, this is what I did after I made the same setup as Bobo’s; the one with the static hairs:
[/B]

Ok, here is my original scene:

http://www.scriptspot.com/bobo/mxs5/pflow/PF_HairyTeapot_05.max

Have fun!

Bobo

[amckay]

now make it wet when it comes in contact with water

[treed]

now make it wet when it comes in contact with water

Now that would be a good challenge.

[deetee]

@ Allan : Yeah, cause you got to love those hairy wet things eh?

Would adding shapemark when it comes in contact with the water be a bad thing ?

[amckay]

hair has completely different dynamic properties when it water than when dry, they aren’t just more shiny

[deetee]

Bah, then throw in a gravity in the mix, on the flex!