tailieunhanh - Adobe After Effects 5.0- P9

Adobe After Effects P9: Adobe After Effects provides the core 2D and 3D tools for compositing, animation, and effects that motion-graphics professionals, Web designers, and video professionals need. After Effects is widely used for digital post-production of film, motion graphics, video multimedia, and the Web. | ADOBE AFTER EFFECTS 239 Classroom in a Book Creating a new composition Before you begin building the final 2D composite you need to create a composite of the three circle elements. You ll combine these elements in one composition so that you can treat it as a single layer in the final composite. 1 Choose Composition New Composition. 2 In the Composition Settings dialog box type Ring Mix Comp in Composition Name. 3 Enter the following options In Width type 800. Deselect the Lock Aspect Ratio option. In Height type 800. In Pixel Aspect Ratio select Square Pixels. In Frame Rate type . In Duration type 500 to specify five seconds. Optional In Resolution select Half or lower as needed for your system. 4 Make sure that you have entered all these options correctly and then click OK. 240 LESSON 7 Combining 2D Elements in a Composite Combining the circles layers and applying transfer modes Next you ll add the three circle elements to the composition and apply transfer modes to blend the layers. 1 If the background color of the composition is not set to black choose Composition Background Color and select black. 2 Make sure that the current-time marker is at 0 00. 3 In the mov files folder in the Project window select the the and the and drag them directly to the Timeline window to automatically center them in the Composition window. Note To select all three files and drag them together hold down Ctrl Windows or Command Mac OS as you click. In the Timeline window the file layers will stack in the order in which you select them with the file you click first as Layer 1 and so on. 4 If necessary select the files in the layer stack and drag them so that they are in the following order Layer 1 Layer 2 Layer 3 5 Move the current-time marker to 3 00 so that you can see more images in the Composition window. 6 In the Timeline window click the Switches Modes bar to open the Modes panel if it is