• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • 1
  • 1
  • Tagged with
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Procedūrinė humanoidų animacija / Procedural humanoid animation

Tamulionis, Andrius 01 July 2014 (has links)
Šokis ir aerobika yra judesių programų pavyzdžiai - jos susideda iš tam tikra tvarka surikiuotų, pakartotinai naudojamų komponenčių. Norint efektyviai modeliuoti tokias programas, reikalinga formali žmogaus judesių notacija. Pasinaudoję esamomis priemonėmis (3D modeliavimo įrankiai, OGRE grafikos variklis, H-Anim) ir sukūrę savas, realizavome procedūrinių humanoido animacijų veikimo schemą. Ji leidžia sudaryti žmogaus judesių programą ir yra nesunkiai suprantama net ir tiems, kurie neturi animacijos ar trimačio modeliavimo patirties. Procedūrinės animacijos užrašomos XML formatu. Jas pavaizduoja mūsų peržiūros programa. Formatas leidžia abstrahuoti judesius į "procedūras", juos apjungti į sekas ir kaupti judesių bibliotekas. Turint pavienių judesių komponentes, procedūrinės animacijos kūrimas, pildymas ar keitimas yra žymiai paprastesnis ir lankstesnis, be to, tokia animacija yra nepriklausoma nuo humanoido modelio geometrijos. / Dance and aerobics are examples of movement programs – they consist of reusable components laid out in particular order. Efficient modeling of such programs requires the usage of some formal movement notation. With the help of existing tools and standards (3D modeling packages, OGRE graphics engine, H-Anim), as well as utilizing the ones we designed ourselves, we have implemented procedural humanoid animation schema. It allows for creating human movement programs and is easy to grasp even for those with no experience in animation or 3D modeling. Procedural animations are written in XML and visualized by our viewer software. Using our format, one can abstract movements into "procedures", combine them into sequences and store them in movement libraries. With all the individual movements at hand, creating, extending and modifying a procedural animation is much more simple and flexible. Moreover, this kind of animation is independent of model's geometry.
2

虛擬環境中智慧型化身之控制

許書瑋, Shu-Wei Hsu Unknown Date (has links)
在3D虛擬環境中,使用者透過對化身的控制進行場景瀏覽等各種活動。所謂智慧型化身之控制,是指在化身控制系統中,融入一些人工智慧的方法,協助使用者更有效率的控制化身的運動。本論文對此議題的研究範疇包含兩部分:改進第一人稱控制化身的智慧型介面及將智慧型控制的概念延伸到第三人稱的控制方式上。在以第一人稱控制化身的部分,我們在一個具備虛擬力場輔助的控制系統上,加入適性化的機制,以產生能適應使用者操控習慣的虛擬力場。另外,在一個使用街圖運動計畫法輔助控制的智慧型介面上,我們以虛擬鏈結的觀念改善該方法可能造成使用者繞路的不自然現象。在第三人稱的化身控制上,我們以「組態-時間」街圖的新觀念設計運動計畫演算法,並加上讓運動計畫與控制播放兩個程序協調並行的機制,使系統能在符合即時性的效能下,自動為化身搭配能夠適時閃避障礙物的上半身肢體運動。我們相信此類智慧型控制介面,可增加化身在虛擬環境中控制的便利性,並提高化身在動作呈現上的擬真度。 / In a 3D virtual environment, a user takes part in various activities such as walk-through a scene by controlling the avatar representing the user. Intelligent avatar control means a control mechanism using AI techniques to improve user naviga-tion efficiency. This thesis reports research on two aspects of intelligent avatar control: we attempt to improve the efficiency of the first-person intelligent ava-tar control interfaces and extend the intelligent interface concept to a third-person control mechanism. First, we improve a force-field based intelligent interface by adopting an adaptive mechanism that can generate a tailored force field according to user control behavior. In addition, in a motion-planning based assisting mechanism, we have introduced the concept of virtual link to improve the quality of the generated avatar path. Second, we use the concept of C-T space roadmap to design a new motion planning algorithm to generate collision-free motion for a third-person-controlled avatar. We have designed a mechanism to allow motion generation and execution to happen in parallel and collision-free motions for the upper body of the avatar can be generated in real time. We be-lieve that this type of intelligent control interface can enhance the efficiency of avatar interface control and improve the realism of the generated avatar motions.

Page generated in 0.704 seconds