Body2Particles is an interactive design system that allows users to create complex particle systems using body gestures. Even for skilled animators, adjusting the various parameters for the animation of complex physics systems is a boring task. Common users may feel frustrated in attempting to understand these parameters and their proper usages. To solve these issues, Body2Particles provides an embodied design interface for the animation of complex particle systems. This work focuses especially on the animation of fireworks as it requires the hierarchical construction of multiple particle systems. The proposed user interface takes the user's body movements as input from depth sensor and outputs firework animation. In our preliminary study, we identified the relationships among the animation parameters and skeleton joints. The system proposed in this study adapts these relationships using predefined parameter constraints and estimates the simulation parameters based on the captured skeleton from a depth sensor. User studies are also conducted to verify the effectiveness and potential uses of this system such as exercise promotion.
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