Masoud 19 Posted February 21, 2020 Hello; When I use scattered points as a POP source, how can I apply velocity to some group of points, dynamically ( during frames, not just at the initial frame)? I know that I should apply the velocity force inside the DOP, but I don't know how Thanks for helping. Add_Velocity_to_particles_01.hip Share this post Link to post Share on other sites
DonRomano 75 Posted February 21, 2020 Well, juste wrangle this : if(i@my_group_name == 1) v@v = set(0,10,0); else v@v = set(0,0,0); Share this post Link to post Share on other sites