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Separating fields

From: After Effects Apprentice 06: Type and Music

Video: Separating fields

As you can see in this animation, the characters are changing color, they are also bouncing up and down, and they have a little rotation added-- and this is all thanks to the Wiggly selector, which I'll be covering in this chapter. I'll also be showing you how to work with interlaced footage, as well as how to render just the type animation with an alpha channel. So if you have the exercise files, I am previewing final comp 08-Wiggly. In the next chapter, Chris will be adding audio, as well as showing you how to add layer markers.

Separating fields

As you can see in this animation, the characters are changing color, they are also bouncing up and down, and they have a little rotation added-- and this is all thanks to the Wiggly selector, which I'll be covering in this chapter. I'll also be showing you how to work with interlaced footage, as well as how to render just the type animation with an alpha channel. So if you have the exercise files, I am previewing final comp 08-Wiggly. In the next chapter, Chris will be adding audio, as well as showing you how to add layer markers.

(music playing) And yes, that penguin really is that cute. So let's get started! If you have the exercise files, open comp 08-Wiggly*starter. If you don't have the exercise files, just create some type that you like to work with. Here I have a nice chunky font. The font is Poplar, black, and I've added a small stroke and a drop shadow. All of those are optional; however, I would add some color to your text.

I am using blue, but any color will do, except for white or black. That's because in the next movie we'll be changing the hue, so you want to have some color to play with. Before I start adding the Wiggly selector, I'd like to show you how to separate the fields. I am viewing my composition at 100%, so I can see all of the pixels. I can clearly see that I have interlacing in this frame. You're seeing alternating pairs of horizontal lines drawn offset from each other.

If I zoom in, you can see that in some areas you don't see that artifacting, and in other cases, it's very obvious. What this is telling me is that the penguins in the foreground are moving from left to right, or right to left, and each set of alternating lines were captured at two different points in time. And because of that, it's important that I tell After Effects that this footage is interlaced. So I'll return to 100%, and I'll tell After Effects to separate the fields.

To do that, I must select this particular piece of footage in the Project panel. The easiest way to do that is to first select it in the timeline, right-click, and select Reveal Layer Source in Project. Now that it's selected in the Project panel, I can click on the Interpret Footage button, and under Fields and Pulldown, I'll Separate Fields, Lower Field First. Now how did I know it wasn't Upper Field First? It's because I know this is a D1 clip.

I can tell that by the fact that in the Project panel, I can see it's 720 pixels wide x 486 high. In almost all cases, video of this size should be separated Lower Field First. I'll select OK to close the Interpret Footage, and now when I scrub the composition, I don't see any of those ugly artifacts. That's because After Effects has separated the fields into two points in time. It's showing me only the first field, and it's filling in the missing line by interpolating pixels.

Of course, one thing to keep in mind, that if you separate the fields, when you go to render this animation, you should turn on field rendering Lower Field First in the Render Settings. That way you can be sure that both fields are being saved in the final movie.

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Image for After Effects Apprentice 06: Type and Music
After Effects Apprentice 06: Type and Music

49 video lessons · 17761 viewers

Chris Meyer and Trish Meyer
Author

 
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  1. 3m 35s
    1. Overview
      1m 35s
    2. Using the exercise files
      2m 0s
  2. 14m 51s
    1. Setting up
      2m 20s
    2. Entering, editing, and styling type
      5m 49s
    3. Using strokes
      3m 6s
    4. Working with paragraph text
      3m 36s
  3. 23m 21s
    1. Setting a title
      2m 31s
    2. Creating a text animator
      6m 54s
    3. Selecting by character vs. percent
      3m 0s
    4. Animating position
      2m 4s
    5. Animating more properties
      3m 31s
    6. Exploring text transitions
      2m 47s
    7. Randomizing order
      2m 34s
  4. 22m 49s
    1. The Cascade recipe
      2m 15s
    2. Exploring offset plus selection shapes
      4m 16s
    3. Working with ramp selection shapes
      4m 26s
    4. Using character anchor points
      4m 40s
    5. Further refinements
      7m 12s
  5. 9m 0s
    1. Working with selections based on words
      4m 16s
    2. Anchor point grouping
      4m 44s
  6. 15m 46s
    1. Using a vertical blur treatment
      3m 58s
    2. Animated tracking
      5m 46s
    3. Working with text on a path
      6m 2s
  7. 14m 56s
    1. Per-character 3D overview
      5m 45s
    2. Enabling per-character 3D
      4m 4s
    3. Exploring per-character 3D rotation
      5m 7s
  8. 18m 37s
    1. Separating fields
      3m 48s
    2. Exploring wiggly options
      4m 28s
    3. Animating wiggles
      3m 18s
    4. Rendering with alpha channels
      7m 3s
  9. 45m 29s
    1. Adding audio
      4m 8s
    2. Audio levels
      4m 27s
    3. Spotting hit points
      5m 33s
    4. Timing to audio
      5m 25s
    5. Spotting dialogue
      7m 32s
    6. Timing dialogue to music
      6m 45s
    7. Mixing audio
      7m 53s
    8. Exploring audio refinements
      3m 46s
  10. 23m 9s
    1. Applying text presets
      5m 50s
    2. Browsing presets in Bridge
      4m 35s
    3. Editing presets
      6m 49s
    4. Saving presets
      5m 55s
  11. 16m 27s
    1. Working with Photoshop text
      4m 58s
    2. Keyframing source text
      4m 21s
    3. The Buzz Words preset
      7m 8s
  12. 20m 43s
    1. Exploring faux styling options
      7m 42s
    2. Tracking and kerning
      4m 56s
    3. Using smart quotes
      4m 8s
    4. Using hyphens and dashes
      3m 57s

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