Customizing filters
Corel VideoStudio allows you to customize video filters in a variety of ways, such as by adding key frames to your clips. Key frames let you specify a different attribute or behavior for your video filter. This gives you the flexibility to determine how your video filter will look at any point in a clip and to vary the intensity of an effect over time.
To set key frames for your clips
1 Drag and drop a video filter from the Library onto a clip on the Timeline.
2 In the Options panel, click Customize Filter on the Effect tab.
The dialog box for the video filter appears.
Note: The available settings are different for each video filter.
3 In the Key frame controls, drag the Scrubber or use the arrows to go to the frame where you'd like to change the attributes of your video filter.
Note: You can use the mouse wheel to zoom in or out of the Timeline Control bar for precise placement of key frames.
4 Click
Add key frame ![](../videostudio-2018/images/filter-add-key-frame-button_2.jpg)
to set that frame as a key frame in the clip. You can adjust the video filter settings for that particular frame.
Note: A diamond-shaped mark
![](../videostudio-2018/images/filter-key-frame-icon.jpg)
on the
Timeline Control bar appears and indicates that the frame is a key frame in the clip.
5 Repeat steps 3 and 4 to add more key frames to your clip.
6 Use the Timeline controls to edit or to go to a key frame in the clip.
• To delete a key frame, click
Remove key frame ![](../videostudio-2018/images/filter-remove-key-frame-button.jpg)
.
• Click
Reverse key frames ![](../videostudio-2018/images/filter-reverse-key-frames-button.jpg)
to reverse the sequence of key frames on the Timeline such that the sequence starts with the last key frame and ends with the first key frame.
• To move to the succeeding key frame, click
Go to next key frame ![](../videostudio-2018/images/filter-go-to-next-key-frame-button.jpg)
.
• To move to the key frame prior to the one selected, click
Go to previous key frame ![](../videostudio-2018/images/filter-go-to-previous-key-frame-button.jpg)
.
7 Click
Fade In ![](../videostudio-2018/images/filter-fade-in-button.jpg)
and
Fade Out ![](../videostudio-2018/images/filter-fade-out-button.jpg)
to establish fade points in your filter.
8 Adjust the video filter settings according to your preferences.
9 Preview the changes you've made by clicking
Play ![](../videostudio-2018/images/play-button_4.jpg)
in the Preview Window of the dialog box.
10 Click OK when finished.
Note: To preview the clip with the video filter applied, use the Preview Window or an external device such as a TV monitor or DV camcorder.
To choose the display medium, click
![](../videostudio-2018/images/filter-remove-key-frame-button_2.jpg)
, then click
![](../videostudio-2018/images/filter-playback-options-button.jpg)
to open the
Preview Playback Options dialog box.