Display of The Earth Taking into Account Atmospheric Scattering Tomoyuki Nishita Takao Sirai (2009)
Katsumi Tadamura, Eihachiro Nakamae
Abstract A method to display the earth as viewed from outer space
ON THE EXTRACTION OF VARIOUS REGIONS IN VECTOR MAPS (2009)
Guofang Jiao, Eihachiro Nakamae, Katsumi Tadamura, Hiroyuki Inuyama
On a topographical map of civil engineering, there are various enclosed areas, for instance, rice fields, wild fields, buildings, roads, walls, regional boundaries and so on. Before a software system...
Anti-Aliasing of Reflection Effects of Water Surface (2008)
Xueying Qin, Eihachiro Nakamae, Wei Hua, Yasuo Nagai, Qunsheng Peng
Water surface is one of the most important components for rendering landscapes. The rendered spacious water surface with periodic wavelets such as on the lakes and reservoirs is very easy to make...
Eihachiro Nakamae, Takao Ishizaki, Tomoyuki Nishita, Shinichi Takita
A dvances in 3D rendering techniques have given rise to a variety of geometric models and shading models: polygonal objects, curved surfaces, and fractal faces, reflection, refraction, transparency,...
A Modeling and Rendering Method for Snow by Using (2007)
Tomoyuki Nishita, Hiroshi Iwasaki, Yoshinori Dobashi, Eihachiro Nakamae
The display of natural scenes such as mountains, trees, the earth as viewed from space, the sea, and waves have been attempted. Here a method to realistically display snow is proposed. In order to...
E.(1991) Scanline algorithm for displaying trimmed surfaces by using Bezier clipping (2007)
Tomoyuki Nishita, Kazufumi Kaneda, Eihachiro Nakamae
Displaying objects with high accuracy is necessary for CAGD (Computer Aided Geometric Design) and for the synthesis of photo-realistic images. Traditionally, polygonal approximation methods have been...
A Method for Displaying Metaballs by Using Bezier Clipping (1994)
Tomoyuki Nishita, Eihachiro Nakamae
For rendering curved surfaces, one of the most popular techniques is metaballs, an implicit model based on isosurfaces of potential elds. This technique is suitable for deformable objects and CSG...
A Method for Displaying Metaballs by using Bézier Clipping (1994)
Tomoyuki Nishita, Eihachiro Nakamae
For rendering curved surfaces, one of the most popular techniques is metaballs, an implicit model based on isosurfaces of potential elds. This technique is suitable for deformable objects and CSG...
A new radiosity approach using area sampling for parametric patches (1993)
Tomoyuki Nishita, Eihachiro Nakamae
A high precision illumination model is indispensable for lighting simulation and realistic image synthesis. For the purpose of improving realism, research on global illumination has been done, and...
A New Radiosity Approach Using Area Sampling for Parametric Patches (1993)
Tomoyuki Nishita, Eihachiro Nakamae
A high precision illumination model is indispensable for lighting simulation and realistic image synthesis. For the purpose of improving realism, research on global illumination has been done, and...
A Shading Model of Parallel Cylindrical Light Sources (1992)
Tomoyuki Nishita, Shinichi Takita, Eihachiro Nakamae
In many industrial designs, such as automobiles and electrical products, evaluating the quality of curved surfaces in the design is very important. If the designer can conrm shapes of curved surfaces...
Hidden curve elimination of trimmed surfaces using bezier clipping (1992)
Tomoyuki Nishita, Shinichi Takita, Eihachiro Nakamae
Shaded display is popular for displaying curved surfaces because of the realistic appearance of the images produced. In the eld of computer aided geometric design, however, line drawings are more...
Shading Models for Point and Linear Sources (1985)
Tomoyuki Nishita, Isa Okamura, Eihachiro Nakamae
The degree of realism of the shaded image of a three-dimensional scene depends on the successful simulation of shading effects. The shading model has two main ingredients, properties of the surface...
Tomoyuki Nishita, Higashimura Fukuyama, Eihachiro Nakamae
Natural lighting models to date have been limited to calculation of direct sunlight. However, this paper proposes an improved model for natural lighting calculations that adequately