Browsing by Subject "3-D video"
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Item Open Access Animation of boiling phenomena(IEEE, 2008-05) Bülbül, Abdullah; Küçüktunç, Onur; Özgüç, BülentPhenomenon of boiling is a challenging topic for computer graphics due to its complex hydrodynamics and formulation. Realistic fluid animations require very heavy three-dimensional fluid flow calculations, and surface estimations as well. However, realism and performance are the two important objectives of the boiling animation for a real-time application. We present an efficient method for the simulation of boiling water in this paper. The method is based on modeling the bubbles and waves as particles. Grid-based approach is used both for the heating and the fluid surface. Our technique makes it possible to produce the animation of boiling phenomena nearly in real-time. ©2008 IEEE.Item Open Access Design and implementation of a DMD based volumetric 3D display(IEEE, 2008-05) Yücesoy, Veysel; Tunaoǧlu, Doruk; Kovachev, Metodi; Ilieva, Rossitza; Onural, LeventA real image swept-volume volumetric display is developed. A piston type moving screen is used to obtain the desired volume. A commercially available DMD device is used to project 2D slices of a 3D frame. There is a varying magnification effect during the projection because of the optical design of the system; raw 3D video frames are processed by a software to generate the appropriate 2D slices by also correcting the magnification. Synchronization between the hardware and the software is achieved via a microcontroller. The overall system is capable of printing 12 3D frames per second where a 3D frame consists of 90 2D slices with a resolution varying from 512x512 to 450x450 (approx. 20M voxels per one 3D frame). Although some flickering effect is observed due to rather low 3D frame rate, results are visually satisfactory. ©2008 IEEE.Item Open Access Simulation of water drops on a surface(IEEE, 2008-05) Algan, Eren; Kabak, Mustafa; Özgüç, Bülent; Çapin, TolgaWe have designed and implemented a model for rendering and animating water drops moving on a surface under physical effects such as gravity, surface affinity and wind. For improved rendering, the output of the simulation (i.e. the animation sequence of the drops) is recorded for later offline image generation. ©2008 IEEE.