Particle src making sim speed slower?

[fkkcloud]

Hi,

I've used particle src before and did not quite realize that it can make the sim go really slow.
FumeBox ram size = 2800mb and particle src from particle flow (spawning particles from head particles like trails spinning with vortex field).

Is there any possibility that particle src can make the sim slower?

It used to go faster with 2800mb size, usually 2~4 min per frame but now it's like 96 min per frame.

FumeFX 2.1
3dsMax 2011x64
24GB RAM DDR3
Intel® Xeon® CPU X5550 @2.67GHz (16 cores)


Let me know if anybody have idea about it.

[sitnisati]

Hello,

If you add lots of velocity with psource and have small advection step and high quailty solver it will go slower.
Also, if you have millions of particles, turn the count down as there's no use of having too many particles as psource inside FumeFX.

Kresimir

[Jordan]

Also make sure you kill off any particles that go out side the grid that you dont need. I think they get taken into account when voxelizing the particles and can blow out the ram if they create a huge bounding box