How do time-based animations achieve realistic movements?

Time-based animations create realistic movements by adjusting properties over time to imitate the dynamics of natural motion. This involves manipulating elements such as position, rotation, and scaling at varying rates, allowing for fluid and believable actions. For example, the way an object accelerates or decelerates during movement can be modeled to resemble how physical objects in the real world behave, leading to more engaging and lifelike animations.

The other choices do not effectively contribute to achieving realistic movements. A fixed number of frames per second provides a consistent playback speed but does not inherently translate to realism. Relying solely on user inputs can create interactive experiences, yet it may not account for the nuances of natural motion unless programmed to do so. Finally, applying graphical filters can enhance the visual aesthetics of animation but does not address the fundamental mechanics of movement necessary for realism.