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    This study introduces a new real-time method for posing and animating botanical trees. It achieves high stiffness and detail without artifacts, enabling interactive simulations even on basic hardware.

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    Area of Science:

    • Computer Graphics
    • Scientific Simulation
    • Botanical Modeling

    Background:

    • Current methods for animating trees often result in unrealistic flexibility.
    • Real-time performance and high detail in tree animation remain challenging.

    Purpose of the Study:

    • To develop a novel method for interactive, real-time posing and animation of botanical tree models.
    • To achieve high stiffness and detail in tree animations without performance degradation or artifacts.

    Main Methods:

    • Utilizes an articulated rigid body model with adjustable rotational springs.
    • Employs a new simulation technique inspired by position-based dynamics and articulated rigid body algorithms.
    • Optimized for efficiency, allowing simulation of millions of branches or multiple detailed trees.

    Main Results:

    • Enables real-time animation of trees with over ten thousand branches on a single CPU core.
    • Maintains high stiffness and avoids spurious artifacts, unlike previous methods.
    • Achieves crisp user interactivity and allows integration into game engines for real-time performance on commodity hardware.

    Conclusions:

    • The proposed method offers a significant advancement in realistic and efficient real-time tree animation.
    • Its efficiency and flexibility allow for complex simulations, including wind, leaves, and collisions.
    • The framework is suitable for applications in gaming and interactive visualization requiring detailed botanical models.