Browsing by Subject "Physically-based"

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    Physically-based simulation of hair strips in real-time
    (UNION Agency - Science Press, 2005) Taşkıran, Hasan Dogu; Güdükbay, Uğur
    In this paper, we present our implementation of physically-based simulation of hair strips. We used a mass-spring model followed by a hybrid approach where particle systems and the method of clustering of hair strands are employed. All the forces related to springs are implemented: gravity, repulsions from collisions (head and ground), absorption (ground only), frictions (ground and air), internal spring frictions. Real-time performance is achieved for physically-based simulation of hair strips and promising results in terms of the realistic hair behavior and hair rendering are obtained. Copyright UNION Agency - Science Press.
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    ItemOpen Access
    Practical and realistic animation of cloth
    (IEEE, 2007-05) Bayraktar, Serkan; Güdükbay, Uğur; Özgüç, Bülent
    In this paper, we propose a system for the practical animation of cloth materials. A mass spring based cloth model is used. Explicit time integration methods are used to solve the equations of motion. We update the spring constants dynamically according to the net force acting on them. In this way, spring constants do not grow arbitrarily to introduce numerical instability and realistic cloth appearance without over elongation is obtained. © 2007 IEEE.