Sucking through a straw

[thebigmontagestudios]

I am working on a particle simulation that is, well, cocaine being snorted through a straw. It's for a show about addiction, so don't judge me! lol.
I can't seem to come up with a good way to do this. Basically, i built a shape for where the particles will 'line up'. Then used that shape as a fill object emitter. Built the straw in maya and did the animation. What i'm trying to figure out and need help with is how to, as the straw moves through the particles, have it suck them up through it. I tried a couple of different thing like bounding gravity to the straw and using a negative value, but i didn't get a good result.

Can you please help on how to do this successfully?

[gus]

Hi Mark,

I am glad we don´t have to judge the use of RF from our clients

I think you could achieve something like this using the filter daemon to fake the transition from the "line" into the straw. You could hide/delete using the filter based on, for example, a bounded gravity attached/parented to the based of the straw. The particles will vanished from the line, and while they do that, you kick new particles onto a circle emitter, using a simple graph, that shoots inside the straw, in the suction direction.

It might works as a simple trick.

g-)

[Oldcode]

You could also have the particles coming out of the straw and simply reverse the footage in your editing program.

Good Luck,

[LuisMiguel]

Hi,

Have you tried to use an attractor daemon with a bit of noise?

luisM.