CAREER: Computer Graphics Techniques for Modeling and Rendering Weathered Materials

研究内容真实感图像合成是建筑、照明和工业设计、科学可视化、仿真系统、娱乐和广告等多个领域的重要问题。图像合成中缺失的一个重要组成部分是气候变化的影响。计算机图形学中现有的材料模型假定材料处于原始状态。这项研究计划将专注于开发用于模拟和绘制风化材料的计算机图形技术。研究将沿着四条主线进行。该计划的第一部分涉及开发全面的材料模型；重点将放在能够捕捉给定材料随时间变化的外观的模型上。该计划的第二部分将需要开发用于复杂曲面的新的高级表示法。该计划的第三个方面包括创造以批处理和交互模式模拟环境效果的技术。最后一个阶段涉及开发渲染风化材料的技术。教育组成部分追求教育举措的综合集合是一个重要目标。教育计划建议开发交互式教学辅助工具，以加强传统的课堂教学，开发适应性超文本环境，用于在线学生援助，以及开发用于学生评估和认证的交互式挑战-回应工具。正在使用这些工具开发计算机图形学的高级课程。对新研究人员的指导和培训将把研究和教育活动结合起来。首席调查员的跨学科工作记录，结合了建筑学和计算机科学方面的专业知识，将有助于这项工作。***

Research Component Photorealistic image synthesis is an important problem for such diverse fields as architecture, lighting and industrial design, scientific visualization, simulation systems, entertainment, and advertising. An important component that has been missing from image synthesis is the effect of weathering. Existing models of materials in computer graphics assume that the materials are in pristine condition. This research program will focus on the development of computer graphics techniques for modeling and rendering weathered materials. The research will proceed along four lines. The first part of the program involves the development of comprehensive material models; and emphasis will be placed on models that can capture the changing appearance of a given material over time. The second part of the program will entail the development of new high-level representations for complex surfaces. The third aspect of the program includes creation of techniques simulating the effects of the environment in both batch and interactive modes. The final stage involves developing techniques to render weathered materials. Educational Component The pursuit of an integrated collection of educational initiatives is an important goal. The education plan proposes the development of interactive pedagogical aids to augment traditional classroom teaching, adaptive hypertext environments for on-line student assistance, and interactive challenge- response tools for student evaluation and certification. Advanced courses in computer graphics are being developed using these tools. Mentoring and training of new researchers will integrate the research and educational activities. The principal investigator's track record of interdisciplinary work, combining expertise in architecture and computer science, will facilitate the work. ***