Rendering with Coherent Layers
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چکیده
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منابع مشابه
Unsupervised Extraction of Coherent Regions for Image Based Rendering
Image based rendering using undersampled light fields suffers from aliasing effects. These effects can be drastically reduced by using some geometric information. In pop-up light field rendering [18], the scene is segmented into coherent layers, usually corresponding to approximately planar regions, that can be rendered free of aliasing. As opposed to the supervised method in the pop-up light f...
متن کاملمحاسبه ضرایب انباشت پرتودهی تابشهای گاما برای چشمههای صفحهای و تیغههای دولایه آب و سرب و بررسی تاثیرات پراکندگی همدوس بر این ضرایب
In this work, gamma exposure buildup factors (E.B.F.) for plane sources and two-layer shields of water and lead were calculated. Also, coherent scattering effect usually left unattended in this type of geometry and application was considered. First, gamma EBFs were calculated by using MCNP, without considering coherent scattering effect for a normal and anisotropic plane source and double strat...
متن کاملA STUDY OF GAMMA RAY EXPOSURE BUILDUP FACTORS IN STRATIFIED SHIELDS FOR POINT ISOTROPIC SOURCES, INCLUDING THE EFFECTS OF INCOHERENT AND COHERENT SCATTERING
The effects of including incoherent (bound-electron) and coherent (Rayleigh) scattering in exposure buildup factor calculations for point isotropic gamma ray sources, penetrating a two-layer water-lead shield have been investigated in the gamma ray energy (E?) range of 40 keV to 3 MeV. Incoherent scattering decreases the values of these factors in both layers up to E? ~ 200 keV and the effect i...
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As the processing power of modern CPUs increases, coherent ray tracing becomes more and more popular, as it allows significantly accelerating ray tracing using SIMD instructions. It turns out, however, that as ray tracing is accelerated, other parts of physically accurate rendering algorithms tend to become bottlenecks. In this paper, we introduce a coherent physically accurate rendering approa...
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Soft shadow with respect to the sun’s position in virtual environments is a fascinating topic in outdoor rendering. A coherent mathematic formula to create shadow with respect to the sun’s position in specific location, date and time can make outdoor rendering as easy as indoor rendering. A target of this study is to propose a new coherent formula to do this. Outdoor rendering using a coherent ...
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We present a system for rendering 3D animations in the style of line drawings. We use a highly parameterized line model in order to determine the appearance of a line. This model allows us to render characteristic line deviations that remain—in contrast to existing non-photorealistic rendering systems—frame coherent. Other inconsistencies which result from intersection and visibility changes du...
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