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A Study on web-based realistic and non-realistic rendering

基于Web的写实与非写实渲染研究

基本信息

批准号：
13680393
负责人：
NISHITA Tomoyuki
金额：
$ 2.69万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2003
项目状态：
已结题

项目摘要

The research topic of this project is to display realistic rendering or non-realistic by using web technology. We focus on natural phenomena such as smoke, desert scenes and atmospheric effects, such as shafts of lights. These phenomena have the common feature that they are consist of the effects of small particles. This research includes the following elements (1) modeling of optical property of natural phenomena, (2) dynamics of natural phenomena, (3) interactive displayy system of natural phenomena, and (4) evaluation of system performance by using interactive system.For (1), some of material in real world consists of particles such as sands air molecules, and waterer vapor. To create realistic images, physical based simulation and rendering are required In particular, the color greatly depends on the properties of light scattering due to particles. For (2), the modeling process includes the creation of shapes of objects, their dynamics and their physical properties such as surface reflectance. Therefore, a lot of modeling methods have been developed to address this problem Using these methods, however, obtaining realistic-looking shapes and motion is very time consuming. For the simulation of fluid dynamics for smoke, cellular automata for cloud motion and sand dunes. For (3), the processing speed of graphics hardware has become faster and faster recently. In addition, high performance graphics hardware is available even on low-end PCs. These facts have encouraged us to develop hardware-accelerated methods for rendering realistic images. For (4), we have developed the interactive animation systems.As a result, we have written nine symposium papers, 3 international conference papers, and one journal paper related to this project.

本项目的研究课题是利用Web技术实现真实感渲染或非真实感渲染的显示。我们专注于自然现象，如烟雾，沙漠场景和大气效果，如光柱。这些现象有一个共同的特点，即它们都是由小粒子的效应组成的。本研究主要包括以下几个方面：（1）自然现象的光学性质建模;（2）自然现象的动力学;（3）自然现象的交互式显示系统;（4）利用交互式系统评价系统性能。为了创建逼真的图像，需要基于物理的模拟和渲染。特别是，颜色在很大程度上取决于粒子引起的光散射的性质。对于（2），建模过程包括创建对象的形状、它们的动力学和它们的物理属性，例如表面反射率。因此，已经开发了许多建模方法来解决这个问题，然而，使用这些方法，获得逼真的形状和运动是非常耗时的。对于烟雾的流体动力学模拟，云运动和沙丘的元胞自动机。对于（3），最近图形硬件的处理速度变得越来越快。此外，高性能图形硬件甚至可以在低端PC上使用。这些事实鼓励我们开发硬件加速的方法来渲染逼真的图像。对于（4），我们已经开发了交互式动画系统，因此，我们已经写了九篇研讨会论文，三篇国际会议论文，和一篇与此项目相关的期刊论文。