For now, we’re going to focus on just the Cannon, which is on by default. The first four are really separate particle systems in themselves, and they give you an incredible amount of control over how you create and generate your particles. The effects panel should now be open, displaying the ten main Particle Playground parameters. Click on this layer and go to Effect>Simulation>Particle Playground. It should now be the top layer in your timeline panel. We’ll use a photograph taken from a ridge that has plenty of open sky for our flock of birds, and we’ll drag it into our timeline panel.Ĭreate a new solid layer and name it Bird Particles. Import a still image you’d like to use for your background. Let’s start by creating a new 10-second composition using the NTSC DV preset that we’ll call Flock of Birds. If this vocabulary sounds familiar, don’t worry, this won’t turn into your college physics class. These properties may be termed differently by various programs and plug-ins, but they all attempt to mimic how real-world particles behave. The properties you can control generally include generator type, particle size, velocity, weight or mass and other real-world forces such as wind and gravity. But the power of particles is precisely that you don’t have to control each one. This will be a big change if you are used to controlling every last detail of your scene with keyframes. With particles, you control the forces that govern their generation and motion, rather than the precise positions of the particles themselves. There are a few concepts you’ll need to become familiar with if you have not used particles software or After Effects particles before. In this tutorial, we’ll show you how to use After Effects to corral a crowd, or rather a flock, of birds that fly across your scene without the hassle of animating each one. But you can also use particles as controllers for individual elements in crowd scenes. You can use them to blow things up make fire, smoke, rain and snow and generally make a controlled mess of things. Particles can do more than just add sparkle to an effect. If we changed the paramters to 3 and 90 for the Direction of the Cannon that was shooting out smoke effectįrom the chimney, it would be pretty funny to see.Interactive Tutorial Content Rain, fire, even a flock of birds can be easily controlled using particle software features without animating each element. The 35 means to wiggle as much as -35 away from the DIRECTION to as much as 35 away, which meant the smoke wouldīe blowing in the wind as much as 35 degrees to the left to as much as 35 degrees to the right. Wiggle(.2, 35) was all we used and all we needed. Just think of wiggle as wiggle(freq, amp). In addition to the main wiggle, two more levels of detailed wiggles occur withĪ frequency of 10 and 20 wiggles per second, and sizes of 10 and 5 pixels, respectively.įEEL FREE TO TOTALLY IGNORE the 3rd, 4th and 5th parameters. Produces about 5 wiggles per second with an average size of about 20 pixels. *** Just think of wiggle as wiggle(freq, amp). *** FEEL FREE TO TOTALLY IGNORE the 3rd, 4th and 5th parameters. Wiggle( freq, amp, octaves=1, amp_mult=.5, t=time) Here is some information about wiggle from the Adobe After Effects CS4 help.The smoke wiggled around due to the wiggle(0.2, 35) AE expression.The DIRECTION property for the Particle Playground effect was then controlled by the AE Expression.Recall that we held down the ALT key and clicked on the stopwatch to tell After Effects that we wanted to add an EXPRESSION to that property.Watch the smoke coming out of the chimney.We used the WIGGLE expression to make the smoke particle playground effect simulate being effected by wind or perhaps by gentle breezes.Here is the snow falling and chimney smoke rising application we did on Wednesday, February 10th, 2010.I signed my pineapple assignment, after the cartoon pineapple show was concluded. Here is an example that shows signing your name using the WRITE-ON and the BEAM effects in combination.Here is an example of the Write-on and the Beam effect as part of the Snorg Tee shirts COMP.Pages 29-36 of the PDF cover the Write-on and the Beam effect that we did to start off the 5th week of class, the day after soup or sundae.AE Expressions: Chapter 1 - Creating Simple Expressions - we will read and study this entire chapter before spring break gets here.Read pages 11 through 19 - pages xi through xix of the Introduction from the Marcus Geduld After Effects Expressions textbook.
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