Make Effect Into Group Video

1. Make Effect Into Group Video By Hui Zhang

2. Mask 1.Mask in After Effects is used as a parameter to modify the path layer effects and properties. Masks, the most common use is to modify the level of Alpha channel, which determines the layer in the transparency of each pixel. Another common masks as animated text along the path to use. Vertices of the path segment and shielding. Segment connecting the vertex line or curve. Vertices, each path segment at the beginning and end. Layer Mask, you can create a transparent area closed path. Open path can not create a layer of transparent regions, but the parameters of the effect is very useful. Some effects can be turned on or off the mask path to be used as input, including stroke, path text, audio waveform, audio spectrum, and Las Vegas. Others can only use closed masks, including filling, painting, remodeling, particle playground, internal / external key.2.A mask belonging to a particular layer. Each layer can contain multiple masks.3.Common geometric shapes, including polygons, ellipses, and stars in the shape of the tool can draw a mask, or you can use the pen tool to draw an arbitrary path.4.In most cases, the path is the same as drawing the shape of the mask layer to draw the shape path, the path of the editing and interpolation mask although there are some additional features. You can link a mask the shape of the path using the path expression, which allows you to mask the benefits of the shape layer, and vice versa.5.In the Timeline panel, position the mask in the stacking order of impact, how it interacts with other masks. You can drag a mask mask attribute different positions within the group, in the Timeline panel.6.Opacity property of a mask to decide on a layer mask's alpha channel masking effects within the region, a closed mask. 100% opacity mask value corresponds to an indoor area is completely opaque. Outside the mask area is always completely transparent. Reverse what is considered to be within what is considered outside of a specific mask, select the reverse of the mask in the Timeline panel next to the name.

3. Keying • Keying is a specific color values ​​(color key or chroma key), or image brightness values ​​(luminance key) definition of transparency. When you are out of the key value, all have similar color or brightness value of the pixel becomes transparent. • Keyed to another image, a particularly useful method, can easily be replaced with a consistent color or brightness of the background, when you work too complicated, it is easy to cover up the object. A consistent background color keying technique is often called blue screening or green screening, although you do not use blue or green, you can use any solid color background. • Define specific benchmarks difference keying background image transparency. Instead, type a monochrome screen, you can enter any background.

4. Work with motion paths • When you space properties, including position and anchor point attributes, and attribute the effect control point motion animation is shown as a motion path. Occurrence of the movement path of the composition of the panel; anchor and effect control point motion path appears in the Layers panel. Motion path appears as a point of the sequence in which each point indicates the layer position in each frame. In the Path box, marking the location of a key frame. • Simple motion path, view, and work space properties and their key frames in the Timeline panel properties work, you in addition, another way of visual space. You can modify an existing key frame by changing or adding a new key frame of the motion path. Key frame by changing its spatial interpolation method, you can modify the motion path shape. • Right-click (Windows) or Command key (Mac OS) a key frame to open its context menu

5. Motion Path Controls • To form a "motion path shown in the control panel, select the component> View Options, then select the effect of control, the key frame, motion path and motion processing. To see the location of a panel composed of motion path, you must select the Position property. • In the Layers panel to show motion path control, the bottom of the Layers palette select the View "menu on the property or effect. • To specify a motion path indicates the number of key frames, select "Edit"> "Preferences"> "Display" (Windows) or the effect of the> "Preferences"> "display button (Mac OS), and in the motion path" section Select an option.

6. Move Motion Path Key frames • In the Timeline panel, select "Modify motion path layer. • If you can not see you want to modify the composition of the panel or the Layers panel, key frame, key frame move the current time indicator. • In small groups or the Layers panel, use the selection tool to drag a key frame or processing