Particles on deforming mesh

#1

Hi,

I was wondering if anyone has any suggestions for having particles emit off a deforming mesh. I am finding that it is painfully slow. I have 3000 particles on a 500K mesh. I am trying to do trails off a mesh using spawn by travel

I have tried to separate the system into two by first just saving the positions and then do the additional effects on top of that. But even saving the positions is taking a long time. I have tried using Cache disk and also saving out as PRT using krakatoa.

Thanks

#2

You can turn off Subframe Sampling in all your ops at the loss of accuracy :sad:

That is just about the worst possible case scenerio, only thing worse would be the same and adding a mapping into the loop.

You could try locking seeds to a mesh and then spawn from instead, that should be a little bit faster.

#3

Thanks for the tip Johnny. Luckily its only a test so I am going to try dropping the resolution on the mesh and hope that helps.

I tried locking seeds but that was slow as well. Turning off subframe sampling speeds its up but as the movment is fast its bit of an issue.

#4

You could also try disabling Subframe Sampling and lowering the integration step try 1/4 or 1/8 frame. It should still be faster than Subframe.

Man it is such a drag, it is a serious issue that has been brought up for years, I guess there is no real way to fix it… oh wait how about Stoke :slight_smile:

#5

Yeah Stoke is probably the best option I had a quick go at it yesterday it had no issues. I was hoping to do do everything with Pflow but I guess its not possible. Previously when i had to do something similar I used Realflow but as this mesh is ripping apart and has changing topology RF dosent like it.

How is TP with this kind of effect?