What is the use of PR keyframes?

pr key frame is a tool to control the relationship between effect and time. Its function is: by setting key frames, different video special effect parameter values ​​can be set at different times to change the video special effects, thereby changing the video program. The purpose of effect changes during playback.

Free recommendation: Premiere basic tutorial

Key frames are to control the effect Tools related to time

pr keyframes can be used for animation. Hit two keyframes at different times and modify the properties of the keyframes to different values ​​to form an animation.

The main function of key frames in Premiere pro is: by setting key frames, different video special effects parameter values ​​can be set at different times to change the video special effects, thereby changing the effect of the video program during the playback process. the goal of.

Types and functions of PR keyframes:

Temporary difference: affects the distribution of objects in time. You can see that the movement trajectory of the object on the right is smooth, moving smoothly from left to right or from right to left.

Spatial difference: affects the path of the object in motion. You can see that the movement trajectory of the object on the right is from high to low, that is, the video will also move from high to low while moving from left to right.

In addition, there are several motion trajectory options.

Linear: Uniform motion between key frames.

Bezier Curve: The change rate can be manually adjusted.

Auto Bezier curve: achieves smooth change rate through key frames and cannot be adjusted manually.

Continuous Bezier curve: achieves smooth change rate through key frames, which can be adjusted manually.

Freeze frame: transition animation cannot be generated.

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