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Grain velocity field


djtrashcap1

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Hi!

Im trying to achieve this effect:
https://www.are.na/block/19872318

I imagine it being some grains and custom velocities from a spline that moves them around however Im just not able to make it happen. I cannot get those slim controlled lines. Any help would be really appreciated

dropping a file here with some splines with velocities and a basic grain setup which I was using in case it helps

GrainpushOD.hiplc

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Your setup is mostly already working. If you just make your 'vel' field a little bit higher res and skinnier using the Point Cloud Open in your Volume Vop and change the advection type to 'Update Velocity' in your Pop Advect by Volumes, you can get pretty close to your reference, especially if you increase the resolution of your grains a bit. You could try adding a velocity to your 'vel' that pulls towards the center of the curve if you want a slight suction effect.

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