![]() 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. speed = 0.Interactive Tutorial Content Rain, fire, even a flock of birds can be easily controlled using particle software features without animating each element. Shape, color, and position let’s start by representing these in code. IMessage uses blurred images for background confetti to help give the impression Shape and color, but also if the confetti is in the foreground or background. To best match iMessage’s confetti effect, we’ll want to account for not only Of confetti will have different shapes, colors, and more. ![]() There’s a lot of variety in a good confetti implementation different pieces (Note that this section mostly exists for the sake of including all necessary code feel free to skip to Step 2 to jump to the emitter layer setup) (Update: this post is now available as an Xcode Playground!) Up with very nice confetti if you did I would still not recommend it though!). You could maybe get all the way through Step 3 without any trouble, and you’d end Previous post (an introduction to the wonderful CAEmitterBehavior class),īut that’s not the only piece of undocumented functionality we’ll look at today.Īs before, note that it is likely a bad idea to ship this in a production app (although Using a few undocumented parts of CAEmitterLayer. Let’s go through how to recreate iMessage’s confetti implementation, step by step, (The short answer: undocumented functionality, and undocumented functionality). IMessage has easily one of the best-looking confetti implementations to be found on iOS,īut how does it work? And why haven’t we seen any accurate clones of its design?
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3/14/2023 12:42:23 am
Over the years, we’ve honed our process to help schools create brilliant playscapes that engage, amaze and develop the skills of children.
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