nó. Bạn có thể tạm dừng phát lại bằng cách nhấn vào nút Pause giữa. Nhấp vào nút thứ ba trong tập này, có một lạc hậu phải đối mặt với biểu tượng chơi, một thực tế ngược thời gian phát lại của chuỗi video của bạn. | Part IV Exploring Filters and Effects it. You can pause playback by clicking the middle Pause button. Clicking the third button in this set featuring a backward-facing play icon does a reverse real-time playback of your video sequence. Tip . M If you click the Play or Reverse Play buttons you can still change the options and settings in the playback window. This feature is really quite helpful because it allows you to interactively make changes and adjustments while the sequence is still playing. The only exception to this is the Button Array and Position Scale. If you run your mouse over the button array or click the position scale s shuttle playback stops and you get the more fine-grained control of these interfaces. FIGURE 20-3 The playback control buttons along the bottom of the Videoframe Playback window Along the right side of the Video Options tab is a series of settings that you can use to get more control over your playback. These settings are described in the following list Current Frame Number This is the frame of your sequence that is currently on display in the playback preview on the left of this window. When you re scrubbing or allowing GAP to continually play this field continually updates its value. You can also manually type in a number here and the playback window takes you directly to that frame when you press Enter. To the right of this number field are two additional buttons which can help you define your playback range Set Start Frame Click this button to take the current frame number and define it as the start frame for your preview. This is helpful if you have a long video sequence and you re interested in previewing only a section of it. Set End Frame Clicking this button performs a similar operation except it sets the end frame of your preview sequence. Start Frame This numeric value defines the frame number at which your playback preview starts. You can set it by clicking the Set Start Frame button mentioned previously or by explicitly .
