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    Introduction

    vvvv offers different approaches to animate objects in interactiveenvironments.

    In many cases, it's not enough to just place static keyframes on a timeline and let the playhead do the job. The animation may need to react to actions or events coming from sensors, networks, input devices or beat-detectors. So in these cases the direction of movement needs to change spontaneously and you often want the transition to the new movement to occur as smoothly as possible. Time- and frame-based approaches can do this trick.

    Still, often you also want to timeline some behavior and even combine the different techniques.

    So here are the three basic approaches:

    • Time-based Animation
    • Frame-based Animation
    • Timeline

    Time-based vs. frame-based approaches:

    Time-based:

    • most time-based filters are parameterized in a way that they animate towards a target point within a specified certain time. The target can be changed at any point in time.
    • the animation's speed is independent of the framerate.

    Frame-based:

    • typically you think about events and reaction to those events at the current moment, not so much about reaching a target in the future.
    • the main idea is to change the value each frame just a bit
    • the animation's speed depends on the framerate and extra care should be taken to avoid it.

    Interested in particle systems?

    • Particles
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