pop wrangle velocity from sop

[Tazio]

Hi,

I attached simple file to illustrate my question.

I want to emit particles only once from each point,

but later add velocity over time with color animation.

I do all of this with pop wrangle from SOP, because initial vel dont work for me

in this case. The problem I have is, that this velocity from

pop wrangle is constant, it work for all frames.

I want this velocity to be only initial velocity.

I would like to add vel on begging and later the gravity to take over

in natural way. Any ideas.

vel_pop_test_01.hip

[mawi]

In the source node, create a just born group under the Birth tab.

This will put every particle being born on current timestep in this group.

 

Set a wrangle node to operate on that group, and use a vexpression to set velocity.

[sadhu]

one of the solutions

vel_pop_test_Soln.hipnc

[Tazio]

Thanks Guys.

 

Sadhu, this solution is so creative.

I like it a lot.

Thanks