Modeling the wear of digital object

虽然我们可能没有意识到这一点，但穿着是我们日常生活中一个真正重要的信息来源。通过磨损，我们可以感知到我们使用物品的历史，从而为我们正在做的任务提供信息和支持。在这项研究中，我们开发了一种使用物理磨损效应来可视化桌面对象历史的技术。在现实世界中，文档和文件夹在反复使用后通常会被弄脏或被撕毁，而现有GUI系统中的文档和文件夹图标不会随着使用相应的数字对象而改变其外观。在真实的办公环境中，穿戴始终是支撑上班族日常工作的重要信息来源。例如，为了找到一份经常被提及的文件，他/她可能会自然而然地先拿起一个相对破旧的文件夹，因为这个文件夹经常被使用，容易弄脏。另外，为了寻找最近使用过的文件，职员们不会检查堆积着厚厚的灰尘的文件，而为了寻找最近创建的文件，他们会跳过那些已经变质的文件。因此，通过使文件和文件夹图标根据其历史改变其外观，用户可以在GUI上感知和使用磨损的功能，并直接导入他们在现实世界中使用磨损的先验知识，从而有效地与文件和文件夹进行交互。为了获得更真实的磨损图像，我们还开发了几种技术来模拟纸张的风化。

Although we may not be aware of it, wear is a real important source of information in our everyday life. Through wear, histories of our use of items are perceptually available to us in ways that inform and support the task we are doing. In this research, we developed a technique for visualizing the history of desktop objects using physical wear effect. While in the real world, documents and file folders usually getting smudged or torn out after being repeatedly used, the document and folder icons in an existing GUI system never change their appearance with the use of the corresponding digital objects. In the real office environment, wear is always an important source of information supporting the daily tasks of office workers. For examples, to find a frequently referred document, he/she may naturally lead his/her hand to pick up a relatively worn file folder first, as the frequent use of the folder tend to make it smudged and soiled. Also, to find a recently used document, a worker will not check the stack of documents covered with heavy dust, and to search for a recently created document he/she will skip those documents whose papers are already deteriorated. Therefore by making the file and folder icons change their appearance according to their history, the user is able to perceive and use the affordance of wear on the GUI and directly import their prior knowledge of using wear in the real world for effectively interacting with files and folders. To achieve more realist images of wear, we also developed several techniques for modeling the weathering of paper.