Final answer:
CGI animators can use the keyframing technique to produce only the keyframes and the elapsed time, while the CGI software generates the in-between frames.
Step-by-step explanation:
In computer-generated imagery (CGI), the keyframing technique is used by human animators to create motion sequences. In this technique, the animator only needs to produce keyframes, which are frames that define the important positions or poses in the sequence. The CGI software then automatically generates the in-between frames based on these keyframes and the elapsed time.
For example, let's say an animator is creating a jumping animation. They would create keyframes for the takeoff position, the apex of the jump, and the landing position. The CGI software will then generate the frames in between these keyframes to create a smooth animation.