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Problem with Particle Trail and Short Motion Path
I built a short logo animation last night, just for practice.
I made a particle emitter from a circle with a scale over life behaviour , and attached it to a motion path, that circles around in the middle. The project is 400 frames long, and I left all the elements in that length during the building process.
The moment I shorten the motion path to under 100 frames the motion path starts turning into an octagon, even if I increase birthrate…
My solution to this was simply to make the animation longer and speed it up in Final Cut.
Is there another solution to this? What am I doing wrong?
“Always look on the bright side of life” – Monty Python
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6 Replies
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Yeah, its the per frame steps. hmmm…even when I make the motion path short before putting the shape in the image source well it give me corners.
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It certainly does seem to be a limitation that the Emitter only works in full frame increments rather than subframes.
But to do what you are showing there you’d be better off using an Airbrush outline and animating the last point offset or using a write-on behavior.
You won’t get the steppiness of the Emitter routine if you go that route, no matter how fast you make the animation, and it really is a great tool for creating swooshes, much better than trying to do it with the Emitter.
Simon Ubsdell
http://www.tokyo-uk.com -
Hey Simon, thanks for the advice. That was the next thing I was going to try, I kind of liked the shape I got with the emitter, let’s see what I can figure out.
By the way, I really had fun with your particle collision tutorial last week. Next week I’ll be doing some lens flares 🙂
“Always look on the bright side of life” – Monty Python
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[Nikolas Bäurle] “Hey Simon, thanks for the advice. That was the next thing I was going to try, I kind of liked the shape I got with the emitter, let’s see what I can figure out.”
Try looking at some of the Shape Styles in the library to see how you can use shapes for some pretty amazing effects. There are loads of great ideas buried in there.
Add your own points and edit them and then use write-on or animate the start/endpoint offsets.
I can’t recommend this technique enough – it’s one of Motion’s really strong features.
[Nikolas Bäurle] “By the way, I really had fun with your particle collision tutorial last week. Next week I’ll be doing some lens flares :-)”
Really glad to hear it, thanks 🙂
Simon Ubsdell
http://www.tokyo-uk.com -
If you don’t need 3D animation via a camera or need the particles to float away off the tail, then you’re going to have more flexibility by using a bezier or b-spline shape. Or you could render out the 400 frame animation and speed it up in your NLE.
Andy
https://www.timesavertutorials.com
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Actually, I figured out I simply needed to make a clone layer of my particle trail, and retime it in Motion.
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