From the course: After Effects CS5 Essential Training

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Previewing your work

Previewing your work

Once you start doing a little bit of work in After Effects, you'll want to preview it, like really preview, not just kind of like drag this little thing around. That's not giving you an accurate representation of what's going on. But there is two ways to preview stuff in After Effects. One is with the Spacebar Preview and if I hit the Spacebar, we will wait and you'll notice this little flecks of green and gray here. And basically, what that's telling you is that After Effects needs to load these frames into RAM before it can give you an accurate preview. So, the green frames, or the green little bars over the frames in your video that have been loaded into RAM and will preview in real time. The Spacebar Preview, which you can actually use Spacebar to both play and pause your video, kind of it just gives you the gist, the overall basic idea of your project. You might have too much going on in your After Effects composition, or you might not have enough RAM to be able preview…

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