So you hold option and you click rotation.
#AE EXPRESSIONS MACTRACKER MAC#
And by the way, I'm on a Mac on I'm on a PC, I would imagine that's the alt key. So the way I add expressions is I hold the option key. And you can work almost as fast as you can think. Um, I'm a big fan of hockey's and whenever possible, I'm going to try and teach you guys some really useful hotkeys, because if you're trying to freelance or impress your employer, or just get a job, one of the best things that you can do as a motion graphics artist is get quicker and be able to work faster and build things faster.Īnd hotkeys are probably the number one way to do that because when you get the hang of them, you'll find that you start doing them without even thinking about it.
So the, uh, one way you can apply an expression is to click on the property that you want to add the expression to go to the animation menu and hit, add expression. All right, and expressions are applied to key frameable properties like position, scale, rotation, transparency, or if you had an effect on this layer, you could apply expressions to the properties of the effect. So the first thing we want to do is actually enable an expression on this layer. So let's get rid of this key frame and let's zero this back out.
#AE EXPRESSIONS MACTRACKER HOW TO#
Um, so I'm just going to use this as an example of how to apply an expression and sort of how you can work with expressions in and effects.
Um, but when you're doing things like this, where you need a constant motion throughout the length of your comp expressions are a much better way to do it. If you're doing short little bursts of animation. So, uh, when you're using key frames, it's good. If I'm having one rotation every two and a half seconds, then what does this value need to be? And you have to do math and no one likes to do math. Well, now it gets a little bit trickier because now you have to say, okay, well, how long is my comp? Well, this comp is two minutes long. Um, however let's say that, uh, you want a very exact speed for, for the, you know, for the amount of rotation of the minute hand, let's say that you want, you know, one rotation every two and a half seconds or something like that. So let's do that and then to go forward in the comp and change the value. So obviously the easiest way would be to set a key frame on the rotation property at the beginning. Um, but there's some pitfalls with that easy way, and I'm gonna show you that right now. So, uh, if you were asked to animate a scene that had a clock in it, um, there's an easy way to do it. Um, so if I rotate them in at hand, you'll see that it rotates exactly as it should. Um, and I've also set the anchor point appropriately, um, to the center of rotation of the two hands. So if you look at this comp here, uh, you'll see that I've set up a really, really simple scene, um, with a background in a clock and I've, uh, already done the Photoshop work of separating out the hour and minute hands of the clock.
#AE EXPRESSIONS MACTRACKER FREE#
Don't forget to sign up for a free student account so you can grab the project files and expressions from this lesson, as well as assets from any other lesson on the site. We'll check out what expressions are, how to use them and why as a MoGraph artist, you need to know about them. If you've never used expressions before, or even if you have, but maybe need a little refresher, this lesson will get you going in the right direction. And in this lesson, we'll be taking a look at the basics of expressions in after effects. Hey there, Joey here for school of motion. Here are some amazing sites to check out that will help you get the hang of expressions.
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