Join Luisa Winters for an in-depth discussion in this video Using the exercise files, part of After Effects Guru: Expressions.
- If your membership includes it, you have access to the exercise files that I used in this title. Please go ahead and download these files, and after you do so, if needed, unzip them. You will have then a folder named After Effects Expressions. You can put this folder wherever you need to in your system, but I will place mine on the desktop. If you open the folder, you will notice that in there we have an After Effects project file and then a folder that contains assets.
You will use this After Effects project and these files throughout this title. The After Effects project references this media. Go ahead and open the After Effects project. All you have to do is double-click it from within the After Effects Expressions folder. When you open the project, you're going see two main bins. One for assets, and this is going to have all of the assets that we are using. You also have sub-bins for graphics, solids.
And you have here a .wav file. You also have a bin for compositions. This bin for compositions is going to have sub-bins that are going to be divided in chapters. So Chapter 1, Chapter 2, et cetera, et cetera. So, if I expand Chapter 2, and I look at any of these compositions, you will see that they not only have names, but they have numbers instead. So, composition 2.2, Changing the value of an Expression, means that this is the composition that you must use when you go to Chapter 2, movie two.
Please keep in mind that your compositions may look different than mine. The interface may also look different. This is because I had to record these movies at a specific resolution, and your screen resolution might not match the one I had to use. Of course, if you don't have access to these files, you can still follow along using your own media. Okay, let's get started.
- Adding expressions
- Editing expressions manually
- Changing expression dimensions: rate, value, music amplitude, etc.
- Working with expression variables
- Using the Expression Language menu
- Using random values