Trapcode Particular, urgent help needed


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Trapcode Particular, urgent help needed
by dina saleem on Feb 29, 2008 at 3:17:48 pm

Hi there,

I have a setup with a layer defined as emitter. My particles are a random seed of letters in a subcomp.

The Layer which is used as an emitter has a scale animation from 0 y-scale to 100 y-scale, holds the scale for 3 seconds and goes back to zero. At the state of 100 % y-scale for some reason there's always the same particle emitted at the same spot.

It looks really weird, because for instance letter 'A' is always seen at the same coordinates. I looks like an echo effect.

I turned Random Seed to 100 % in the options menu, but that didn't help at all...

Did anyone have that problem before? Is there a solution?

Thanks for help :)

Greets

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Re: Trapcode Particular, urgent help needed
by Jeremy Allen on Feb 29, 2008 at 4:30:48 pm

I'm not sure I fully understand the problem. Could you include a screen shot of your comp? There are a couple ways you could affect how the particles come out. One way is to go into the options and set the pre-roll to different numbers and see what that produces. The pre-roll just gets particular started a little earlier than the first frame so it may distribute the particles differently.

If you could include a screenshot, I bet we might could help you a little quicker.

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Re: Trapcode Particular, urgent help needed
by dina saleem on Feb 29, 2008 at 5:14:04 pm

Hi Jeremy,

here's a still... http://www.dina-saleem.com/p.jpg
and a movie at ... http://www.dina-saleem.com/p.mov

You can see several particles repeating ... it doesn't look that wrong in a still but get's really weired once it's moving!

(I'm in a diffrent time zone so please excuse me if I'm not replying right away... )

Thanks, Dina

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Re: Trapcode Particular, urgent help needed
by Matthew McCarter on Feb 29, 2008 at 5:21:31 pm

Maybe if you change the option, under particle, to select instead of current frame, click random still frame.

unless I'm misunderstanding, which is mostly the case a lot of times.

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Re: Trapcode Particular, urgent help needed
by Jeremy Allen on Feb 29, 2008 at 5:36:21 pm

ok, i can see the issue now, but I'm not really sure why it's happening like that. How are you generating your text? Are you wanting the whole alphabet in there or just a few select letters? It seems like there are only a handful of letters being generated. The fewer letters you have, the harder it is for it to look "random"... Did you try different amounts for the random seed, or just 0 and 100?

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Re: Trapcode Particular, urgent help needed
by dina saleem on Feb 29, 2008 at 6:03:12 pm

Hi Jeremy and Matthew,

the parameter for time sampling is already set to random-still-frame and i also tried various values for the random seed.
I use a layer as an emitter and a composition that plays through the entire alphabet as a particle.

thanks and greetings, Dina

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Re: Trapcode Particular, urgent help needed
by Jeremy Allen on Feb 29, 2008 at 6:57:32 pm

hmmmm... do you have each letter taking up exactly one frame in the composition? You may need to zoom into the timeline and make sure.

Frame 1 = A
Frame 2 = B
Frame 3 = C
etc..

That's the only other thing I can think of at the moment.. Anybody else?

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Re: Trapcode Particular, urgent help needed
by dina saleem on Mar 3, 2008 at 9:09:54 am

Hi Jeremy,

yes, I tried all that. First through character offset and then through an expression that let's the layer take a new value for every frame...

Greets Dina

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