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- W2129963997 abstract "High-quality, detailed animated characters are often represented as texturedpolygonal meshes. The problem with this technique is the high costthat involves rendering and animating each one of these characters. Thisproblem has become a major limiting factor in crowd simulation. Since wewant to render a huge number of characters in real-time, the purpose ofthis thesis is therefore to study the current existing approaches in crowdrendering to derive a novel approach.The main limitations we have found when using impostors are (1) thebig amount of memory needed to store them, which also has to be sentto the graphics card, (2) the lack of visual quality in close-up views, and(3) some visibility problems. As we wanted to overcome these limitations,and improve performance results, the found conclusions lead us to presenta new representation for 3D animated characters using relief mapping, thussupporting an output-sensitive rendering.The basic idea of our approach is to encode each character through asmall collection of textured boxes storing color and depth values. At runtime,each box is animated according to the rigid transformation of its associatedbone in the animated skeleton. A fragment shader is used to recoverthe original geometry using an adapted version of relief mapping. Unlikecompeting output-sensitive approaches, our compact representation is ableto recover high-frequency surface details and reproduces view-motion parallaxe ects. Furthermore, the proposed approach ensures correct visibilityamong di erent animated parts, and it does not require us to prede ne theanimation sequences nor to select a subset of discrete views. Finally, a userstudy demonstrates that our approach allows for a large number of simulatedagents with negligible visual artifacts." @default.
- W2129963997 created "2016-06-24" @default.
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- W2129963997 date "2010-06-01" @default.
- W2129963997 modified "2023-09-27" @default.
- W2129963997 title "Output-Sensitive Rendering of Detailed Animated Characters for Crowd Simulation" @default.
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