用3DS MAX解决立体化学教学难点

运用三维动画制作软件3DS MAX 4．0对有机立体化学中的烷烃构象、环烷烃的构象及转化、各种构象之间的能量变化、构型异构及旋光异构体的空间结构及属性等内容进行了形象化的描述。对一些分子模型、仪器及部分实验予以三维空间模拟及动画处理，使抽象的概念具体化、可视化。     

Maya动画的应用领域和制作流程

Maya作为最为常用的三维动画制作软件,应用领域包括影视动画、广告设计、机械设计、建筑行业等。Maya软件界面简洁,操作简单,涉及范围广,是三维动画制作的首选工具。Maya动画的制作流程则大致分为:实物建模、贴图制作、材质模拟、灯光和摄像机、动画制作。     

三维动画Episode的设计与制作

随着计算机处理图形图像的技术日益完善,CG制作越来越频繁地出现在生活中,其中的三维动画尤为常见。Maya是现在国际最为流行的顶级三维动画制作软件。通过Episode动画短片的制作,介绍运用Maya制作三维动画的步骤和过程。     

论三维动画动作设计创新改革研究

三维动画动作设计在整部三维动画作品制作过程中有着至关重要的作用,因此,如何培养三维动画创新型人才,培养从"制作"到"创作"生产自主动画产业链意识是当下很多高校三维动画教育应该思考的问题。     

浅析三维动画制作流程

三维动画制作是一个复杂但有序的过程,高效、合理的设置三维动画制作流程对于企业降低成本,提升作品质量具有极大的意义。     

结合三维流体模拟合成的定格场景动画生成

定格和三维流体动画都是三维动画的一个重要组成部分。实现三维动画模拟相融合是一般动画项目中遇到的特殊困难和瓶颈,将三维流体动画和定格动画进行合成制作,提出基于流体插件体系解决如何把生成的三维流体动画运用到定格动画中的方法。为三维动画之间的模拟合成探索新的视觉艺术形式寻求了技术的突破。     

电脑三维动画造型设计教学研究

随着科学技术的进步,出现了运用计算机及专门软件设计制作模拟立体影像效果的三维动画形式。在虚拟三维中能够轻松的模拟各种形态及物体的质感,为动画技术开拓了一个全新的动画视觉艺术领域。三维动画主要依赖计算机图像生成技术(简称CG)。因此称计算机动画,1995年第一部完全由制作的动画电影《玩具总动员》诞生以来,电脑三维动画日新月异,三维动画是科学技术与艺术有着密切关系的动画形式,同时对未来的动画创作提出了新的要求。     

浅谈虚拟现实技术在三维动画制作中的应用

随着科学技术的不断发展,动画技术不断发展,为适应市场需求,需要加大研究力度,利用三维动画制作与虚拟现实技术研究动画的设计、制作与发展具有重要的意义.本文从三维动画制作现状、环境、技术入手进行知识讲解,能够促进动画制作的发展,为三维动画制作提供借鉴与指导,指明发展的方向.     

三维双缓存动画模拟软件制作系统设计

为了提高三维双缓存动画模拟和视觉重现能力,利用三维视觉重构和嵌入式VR构架,设计三维双缓存动画模拟软件制作系统.首先构建三维双缓存动画模拟软件的总体结构模型,采用嵌入式BS构架体系进行系统的结构分析,利用物联网组网技术进行动画模拟软件制作系统的网络组网设计,采用VR技术进行三维动画制作过程中的虚拟现实仿真和三维视觉重构,在数据处理模块中处理三维双缓存动画模拟的图像,结合高分辨的视觉重建算法,进行三维双缓存动画模拟控制和视觉重建,实现三维双缓存动画模拟的系统优化设计.仿真结果表明,采用该方法进行三维双缓存动画模拟的视觉表达效果较好,3D动画模拟逼真度较高,系统的稳定性较好,人机交互能力较强.     

三维动画角色动作逼真度的研究

在传统的二维动画制作中,受到我国经济和科技水平的限制,动画制作水平较低,尤其是在画面的质量上,虽然一些动画具有非常好的故事情节,但是角色造型和动作制作的不精良,很大程度上限制了动画的整体效果,在三维动画制作中,制作理念和技术都有了很大的变化,该文通过对三维动画角色动作的概念和特点进行分析,对三维动画角色动作的逼真度做了简单的研究。     

Full immersive virtual environment CAVE in chemistry education

By comparing two-dimensional (2D) chemical animations designed for computer’s desktop with three-dimensional (3D) chemical animations designed for the full immersive virtual reality environment CAVE^TM we studied how virtual reality environments could raise student’s interest and motivation for learning. By using the 3ds max^TM, we can visualize the chemical phenomena easily and quickly without knowing any special computer language and export the application to files which are compatible with the CAVE^TM (Object or OpenGL files). After the participation in 3D animations at the CAVE^TM students comprehended the molecules’ structure and their changes during a chemical reaction better than during the 2D animations on the computer’s desktop, as the limitations of human vision had been overcome. Furthermore, the students were enthusiastic, as they had the feeling that they were inside the chemical reactions and they were facing the 3D molecules as if they were real objects front of them.     

3DS MAX 5在分子离子结构和反应机理教学中的应用

介绍了运用3DS MAX 5制作分子和离子结构模型及其动画，以及用动画演示化学反应机理的方法。     

The effects of conceptual change texts accompanied with animations on overcoming 11th grade students’ alternative conceptions of chemical bonding

This paper aims to determine the effect of conceptual change texts accompanied with computer animations on 11th grade students’ understanding and alternative conceptions related to chemical bonding. One experimental group (EG; N = 28) and one comparison group (CG; N = 30) were used in the study. While the comparison group taught traditional instruction, the experimental group received conceptual change text accompanied with computer animations instruction. Chemical bonding achievement test was applied as pre-test, post-test and delayed test to collect data. The results of the study indicated that while there is no statistically significant difference between groups in pre-test, performance of EG students is greater than the CG ones in post-test and delayed test. And also, the EG students are better in remediating their alternative conceptions related to chemical bonding. Based on the study, it is concluded that conceptual change texts combined with computer animations can be effective instructional tools to improve students’ conceptual understanding of chemical concepts.     

基于3D Widgets三维交互快速拾取算法研究

为解决图形、图像在三维交互及深度[10]信息处理过程中所存在的问题,提出了一种以3D Widgets为核心的三维交互框架,并研究了三维交互拾取的多种算法。基于3D Widget[4]的拾取技术能提供给用户交互旋转和交互拾取的功能。实验结果表明,该算法与已有的算法相比,将这些算法其应用在手术模拟三维交互系统中,可以提高用户使用的直观性,还有益于以后的功能扩展。为后续的交互过程奠定基础。本文的创新之处正是在此理论的基础上,将其应用在三维交互中具有重要的价值和意义。     

Special Issue in Honor of Ben Shneiderman's 60th Birthday: Reflections on Human-Computer Interaction

Abstract

Unlike most Web portals in the world, Chinese Web portals are characterized by a huge amount of information, excessive visual stimuli, and very long Web pages. The objective of this study is to investigate the effect of such rich Web portal designs and floating animations on visual search, emphasizing a comparison between Chinese users and German users. Two experiments were conducted to test 2 proposed hypotheses. Experiment 1 studied the effect of Web portal design (rich and simple) on visual search performance (performance time, errors, and satisfaction) with both Chinese and German participants. Experiment 2 studied the effects of static animations (leaderboards, couplets, and large squares) and floating animations (moving down, moving up/down, and random movement) on visual search performance on Web portals. The dependent variables were the performance time, error, satisfaction, and animation recognition. The results indicated that participants using simple Web portals searched faster, made fewer errors, and were more satisfied than participants using rich Web portals. No significant differences were found between the performance time of Chinese participants and German participants. However, satisfaction of Chinese participants was found to be less influenced by the differences between simple and rich Web portal designs, compared with German participants. No significant differences were found in performance time and animation recognition between static animations and floating animations, which indicated that users are able to detect the pattern of animation movements and were able to avoid floating animations as well as static animations. People searching pages with randomly floating animations were found to use significantly more time compared with those searching pages with no animations. Furthermore, users' satisfaction for pages with randomly floating animations, moving down animations, and moving up/down animations was significantly lower than for pages with no animations. Implications for designers and for future research are discussed.     

A review of learning demands in instructional animations: The educational effectiveness of animations unfolds if the features of change need to be learned

In a systematic review, 194 studies on learning from animation were analysed. The analysis covers the learning domains, the representational characteristics of the animations, the assessed perceptual and cognitive achievements, and the assessment formats. Research on learning from animation focuses on assessing conceptual at the neglect of kinematic mental models. This is in contrast to an important rationale for making use of animations: that it needs to be learned what animations can specifically display, namely, how change in space and time occurs. This might explain why meta-analyses which compared the effectiveness of animations and static pictures found merely small overall effect sizes in favour of animations. To confirm this hypothesis, one meta-analysis was re-analysed with a new moderator. It encodes whether the features of the displayed changes were relevant to learning. Learning from animations was significantly more successful than learning from static pictures, if the features of the displayed changes had to be learned.     

有机化学三维电脑动画的开发

介绍采用3DS MAX软件,制作有代表性的有机化合物分子结构的立体图像和一些演绎典型的有机化学反应机 理的三维动画,并把相关素材编辑成多媒体教学软件。通过动画演示,生动形象地表达有机物分子结构和一些反应过 程。