trunksdavid Posted October 13, 2018 Share Posted October 13, 2018 Hi, I've been trying to make particles slide down a vertical surface but I want them to stop for a second while in motion, and then continue sliding again. I guess, I badly need help with this. Can anyone help me out ? I've tried animating the response feature in POP Behavior Detect but didn't work out. Each particle should have its own movement. Regards, David Quote Link to comment Share on other sites More sharing options...
StepbyStepVFX Posted October 14, 2018 Share Posted October 14, 2018 (edited) Hi, You can either use a POP Wrangle or a POP VOP, and play with the speed directly within your sim (and even group the particles you want to slow and Wrangle only this group), and keyframe a factor you would apply of the speed (or a ramp). Or you can also tweak your sim afterward, using CHOPS, which also gives you lots of control. Edited October 14, 2018 by StepbyStepVFX Quote Link to comment Share on other sites More sharing options...
TheDude Posted October 17, 2018 Share Posted October 17, 2018 Put down a pop drag, and keyframe animate the drag as needed. You can also use vex expressions in this if you need to control specific groups / areas / procedural approach based on other data Quote Link to comment Share on other sites More sharing options...
DonRomano Posted October 17, 2018 Share Posted October 17, 2018 I'm not an expert, but you can pop wrangle something like : float time = @Frame; if ( time > 24 && time < 36){ @P = @P - @TimeInc * @v; } And it should stop the motion for the time you type (here it's 12 frames). I give you the file I made to test it out. Particles_motion_stop.hipnc Quote Link to comment Share on other sites More sharing options...
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