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Earlier in this lesson when we had you build this RoboTV composition we gave you a couple of movies to use as your background. We gave you this movie which had a nice generic soft curtain of light sort of feel and we used this as a lighting effect, and we used this movie which had a very blocky sort of pattern meant to mimic some of the square blocky pattern that we saw in the other elements in RoboTV. Well, these were actually created using a plug-in in After Effects known as Fractal Noise. And Fractal Noise is a good utilitarian plug-in to use.
Therefore, I am going to show you how we created these two backgrounds using the Fractal Noise effect. You don't need any source files to do this, because you are just going to use solids and plug-ins already inside After Effects. The first thing I'm going to do is create a new composition and you have a few choices as to what size you make this composition. You could make it the same size as your final overall composition. In this case, we are creating an NTSC DV size Comp. But another approach is just to make some of these textured movies, render them, and have them around as your own stock footage.
In that case, you might want to create them at a larger size such as an HDTV size and have those files around that you can pan, zoom, rotate, and otherwise use as necessary for different projects. But just to make renders faster, we're going to use this smaller DV size for now. I'm going to name this fractal noise - soft because the first example I'm going to show you is this nice generic soft background. I'm going to make it 6 seconds long, again so it will render fast and because that was the length of our final composition. I tend to like to make looping backgrounds at least say 16- 20 seconds long, but we'll do this now just for expediency.
Inside your comp, either create a new shape layer or a new solid layer as the size of your composition and I'll name this after the plug-in I'm about to apply. By the way, the color is not important. Next, I'm going to apply Effect > Noise & Grain > Fractal Noise. Fractal Noise and Turbulent Noise are very similar to each other. Turbulent Noise is actually GPU- accelerated, so in some cases it maybe faster.
It also is set to create a more realistic form of Fractal Noise for those trying to create natural phenomenon such as smoke and fire. However, Fractal Noise has the advantage that you can actually force it to make seamless loops and since we're creating background textures, that's what we're going to take advantage of here. So here is Fractal Noise at its default settings. In the next two movies, we're going to change these settings to create a soft amorphous lighting type background, plus a stylized geometric blocky background. We'll also animate them both.
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