Join Chad Perkins for an in-depth discussion in this video Adjusting particle life span, part of Trapcode Particular Essential Training.
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In this tutorial we are going to be looking at the life span of the particles, what difference that makes, and also, how to adjust that. First let me introduce you to this little project here, I am just going to play this back. Very cool! So we are going to make these sparks, later, I'll show you how to go through that step by step, we'll get to that later in this training series. But I want to adjust it here in this movie. See these particles, there are just too many of them.
So by the time that one word comes on, there are still particles left over from the last word, it just kind of gets a little messy. So I want to reduce the particles on screen. Now there are a couple of ways that we can do that actually. First and the most obvious is that we reduce the particle count in the Emitter section here, the Particles per Second, the actual number of particles. But if I look at the number of particles here, I am actually happy with that, it's actually good number of particles. So the other thing that we can do is adjust the Size of the particle in the particle section and reducing the Size of the particle will create the illusion that there are less particles, because they take up less screen, because there are less of them.
Now the other option might not be so obvious and that is the lifespan of the particle. So what's actually going on here is we have the right number of particles, they are the right size, but they stay on too long, and so it makes things messy. So in the Particle section we could adjust the life of the particle. The default is 3 seconds long, which for many particles is way too long and actually for others, it's also way too quick. So I am actually going to take this down and set it 3 seconds long, I am going to click in here and I am going to type in .6.
And now by the time that these OF particles start, the MADE ones are completely gone. So they fade out much more quickly, making this appear much cleaner. Now another thing we could do to get this a little bit more life is actually to increase the Life Random. Right now they are all fading out the same time, which can make things look not so great and realistic. So I kind of want to stagger their life, maybe like I want some particles dying out now and maybe a few stragglers did not quite die out right at .6 of a second mark.
So what I am going to do is I am going to click in here and I am going to type 50 and that's going to increase the Life Randomness by 50%. So some of these are dying out already and some of them are just kind of getting warmed up. So the final result here looks like this. (music playing) So it's much more of a believable spark hit, the way that those sparks kind of hit and then fade out more quickly. So that is Life Span, again it controls the life of the particle, how long the particles are on the screen from the time that they are born, until the time that they go away.
- Understanding the Particular paradigm
- Working with different emitter types
- Understanding the curve-drawing interface
- Animating the emitter's position
- Adjusting the particles' life span
- Using custom particles
- Using Particular's auxiliary particles
- Integrating the After Effects lights and cameras
- Using a motion path
- Working with gravity and wind
- Using movies as particles