wispy particles

[ANIMATIK_BT]

Hello. I`m pulling my hair off to achieve the wispy look of particles like shown in this presentation https://youtu.be/s0ka3rRvycM?t=1102. I`ve tried to set each parameter i spotted in the video but I always get a messy cloud of particles instead of that cool look. And I don`t understand a single word of the speaker. I`m using PFD 3.00.02 Build: 170109.Please someone point me in the right direction.

[Ivaylo Katev]

can you post an image with your settings and result?

[ANIMATIK_BT]

Ofcourse. Here is my setup and result

[Ivaylo Katev]

can't see obvious reason, the conservation type is different, it's symmetric in the video, but i really doubt that it may cause such a difference

[Raven]

Looks like the dynamics also have randomness settings of 0.2 and 1.5.
Time scale is also at 0.1

[ANIMATIK_BT]

Like I said, I`ve tried to set everything exactly like in the video including dynamics randomness which made no difference. The time scale in the video is animated from 1 to 0.1 and I tried that also with no result. The only thing I can think of i some difference between solvers. The video was published 3 years ago. Things must have changed over time. Maybe someone who knows Bulgarian could catch some clues in the speach.

[Raven]

It's not as wispy as theirs, but give this file a go.
I think it may be a scene scale thing so maybe play with that a bit.

[ANIMATIK_BT]

Yes, it is closer than my attempt but still not there. Anyway thank you for your time and help. I`ll play a bit more with this and hopefully find solution. One more question. Is there a way to mesh regular PFlow with Phoenix? I mean no simulation, just meshing, like Frost.

[Svetlin.Nikolov]

Hey,

Using Raven's scene you should get closer to the result by increasing the Steps per frame to 4 or 8 and also increasing the Motion velocity of the moving object from its right-click Phoenix props. Increasing the steps per frame would generally produce more smooth and wispy result, while you would be able to force the moving object to push more strongly against the smoke and particle by increasing its Motion Velocity Effect.

After that, you could fine-tune the scene by playing with the direction and timing of the slicing hit - the more time the smoke and particles have to move and swirl after being emitter from the source, the more interesting it would look when the moving object passes through.

No direct particle meshing in Phoenix (yet), though.

Cheers!

[ANIMATIK_BT]

Hi Svetlin. Increasing SPF does some good to simulation indeed but it doesnt change overall look. There is one more thing I`ve noticed lately ( might be wrong though ) - in the presentation it seems like particles are beeing emitted just from the surface of the smoke and not in the entire volume. If I am correct, that may be the clue. What do you think? Is it even possible to emit from the smokes surface? Like foam? In the video particles form these cool clusters right after emission, long before contact with moving geometry. I wish mr. Цветан Миланов would join the conversation
Best regards.

[Svetlin.Nikolov]

Yup, that's definitely one of the the keys in that particular scene - how about if you try to copy the emitter and place one copy in from the other, and then emit just drag particles from the front one and just smoke from the back one, using must lower discharge for the drag particles. It's just a guess, but I imagine this way the smoke will involve the particles in a similar way to the video.

Just another wild guess - what if you switch to Forward transfer advection - then the interaction between the particles and the emitter would happen in a different way and might look more interesting

[tsetso]

Hey guys,
sorry for answering so late. I'm not surprised you can't achieve the same result. To be honest I doubt I'll be able to achieve it as well, since Phoenix evolved so much lately.
However I'm uploading the scene I used for this demo. I'm pretty sure that it'll look the same as in the video if you simulate it with version 2.2

Best regards,
Tsetso

02_particles.zip

[ANIMATIK_BT]

Thanks Tsetso. I appreciate your effort. As you expected the result from Phoenix3 is not even close to that from v2.2. I wish there was more consitency between solver versions. When I upgraded to v3.0 I`ve been told by support that the new licence will not allow to run older versions of phoenix. Is that true? Will it run properly if I reprogramme my dongle with an old rtu file?
Best regards.

[Svetlin.Nikolov]

Yup, that's right - Phoenix 2 and Phoenix 3 use different licenses, so you have to reprogram each time you switch.