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Motion paths for particle collision

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Jonathan Baldwin
Motion paths for particle collision
on Aug 27, 2010 at 4:52:32 pm

I am trying to create an effect to replicate proton collisions seen in particle accelerators:




Basically, I am trying to have objects moving across the screen that keep a solid path behind them (tracks). The only ways I have found to create this effect are with "CC Force Motion Blur," but it's fading out the object instead of keeping it at a consistent, solid value.

I am thinking there might be a way with Echo, but that hasn't worked out for me...

Some objects will be curving slightly, or branching off into other objects, so I need to create an effect that displays a solid path of motion, in the same way you would hold down "bulb" on a camera to expose a path of light...


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Chris Wright
Re: Motion paths for particle collision
on Aug 28, 2010 at 6:15:07 am

This might work. You make duplicates of the layer. The website also has some good inelastic equations for particles too.

http://www.motionscript.com/mastering-expressions/follow-the-leader.html

also, if you want cascading opacity with whole images, then read this post
http://forums.creativecow.net/readpost/227/16306

http://technicolorsoftware.hostzi.com/


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Todd Kopriva
Re: Motion paths for particle collision
on Aug 28, 2010 at 6:29:51 am

I recommend using paths on one or more shape layers and then using the Trim Paths operation to trim and extend the path as needed.

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