Figure 1: Basic interface of Vegas
1. Vegas preview window
When working with video editing software , the "Preview Window" is a window that is used all the time, and the frequency of use is second only to the "Timeline Window". The preview window mainly integrates functions similar to the player.
Figure 2: Vegas' preview window
At the top of the window are the usual buttons, followed by Project Properties, Video Preview on External Monitor, Video Output FX, Split Screen View, Preview Quality, Safe Frame, Copy Snapshot to Clipboard, and Save Snapshot. Users who want to know about multi-cam editing can refer to: How to use Vegas multi-cam editing .
Figure 3: Toolbar of Vegas Preview Window
Preview window buttons:
Record: This button will start recording on all prep tracks, if no tracks are prep a new track will be created automatically.
Loop Play: Play the events in the loop area in continuous loop mode.
Play from the beginning: Play will start from the beginning of the project timeline regardless of the current cursor position, and the cursor will return to its original position when playback is stopped.
Play: Start playback from the cursor position.
Pause: Pause playback and keep the cursor at its current position.
Stop: Stop playback or recording and return the cursor to its starting position
Go to Start: Move the cursor to the beginning of the item.
Go to end: Move the cursor to the end of the item.
Previous Frame: Move the cursor one frame to the left.
Next Frame: Move the cursor one frame to the right.
By enabling "Enable Multi-Camera Editing" in the "Multi-Camera" submenu under the "Tools" menu, then this preview window will also become the lens switching window for multi-camera editing.
Figure 4: Multicam editing view
2. Timeline window
"Timeline" is the most used of all windows, and all operations need to be done here. For example, cutting, special effects, audio, subtitles, etc. need to be added to the timeline window and then edited. The content presented by the timeline is the "content" displayed in the "previewer window", that is, we finally see the video content of the film. as the picture shows.
Figure 5: Vegas timeline track
The timeline is divided horizontally into regions, with each row representing a "track". as the picture shows. There are 4 kinds of tracks in Vegas, they are:
Video track: Video or image sections can be placed
Audio Track: Audio or effect sections can be placed
Video bus track: Video output FX can be placed, this track cannot place video.
Audio bus track: Audio output FX can be placed, this track cannot place audio.
Video track display rules: In 2D normal mode, the topmost material will be displayed; in 3D composite mode, it will be displayed with deep depth.
Audio tracks are not ordered, but you can specify the bus and position of the output, and you can use external devices such as mixers for technical processing. Reference for the introduction of the trimmer: Introduction to the use of the Vegas trimmer .
3. Track list
The track list is located on the left side of the timeline window, and the tracks are divided into video tracks and audio tracks. Both tracks are shown, and the functions covered by the track list are noted. But the Vegas 15 version incorporates some of the track functionality into the 
logo button on the left.
Figure 6: Track List
Regarding the track, in addition to the common layer rules, the main difference from the same type of software is "parent, child and composition"
1. Compositing refers to the process of mixing video tracks to create a single layered output.
Combine tracks with masks to cover parts of the video or limit the effects of filters. Masks are mainly based on dark and light areas, specific colors or alpha channels. It can also be drawn manually.
Click the Composition Mode button in the track and choose a mode from the menu to determine the composition mode between video tracks. Since the content of the lower track will be displayed through the upper track, the composition mode of the upper track determines the display state of the next track.
Click the Make Synth Child button on the parent track to make the Child Track. Click the Generate Composite Parent button on the child track to generate the Parent Track.
We can also generate complex compositions by nesting "parent/child track groups". When we need to create multiple layers as sub-tracks at the same time, we can hold down the ctrl keyboard to select multiple track layers, and then click "Generate Composition" child".
2. Create a mask (a track-level mask)
Set the two adjacent tracks as parent and child tracks (the same method as above)
To create a video mask, select "Multiply (Mask)" in "Composition Mode" above the parent track
3. Track extension
After expanding the track layer, it is found that the two pieces of material in the same track are arranged in two different layers of the same track, and there will be an additional track with a cross symbol in the middle. The track with the cross symbol is to add a "transition". FX place. When the two pieces of material do not intersect, the materials will be arranged in the order of one up and one down, as shown in the figure.
Figure 7: Track expansion
4. Mute and Solo switch
Click the Mute button to turn off the selected track playback mix, and click the Mute button on other tracks to add them to the mute group. To unmute the track, click the Mute button again.
Select the Solo button to solo all unselected tracks, and click the Solo button on other tracks to add them to a Solo group. To cancel the Solo effect, click the Solo button here.
In composition mode, clicking the mute or solo button on the parent track will mute or solo the entire track group. For more Vegas usage and skills, please download Vegas and explore slowly. If you have any questions, you can consult customer service 400-8765-888 or join the official QQ group 345917631 for consultation and discussion.
Reprinted from: http://www.vegaschina.cn/rumen/vv15-jcjm.html .