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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

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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 by StepbyStepVFX

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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

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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

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