Exploratory Research in Creative Sketching for 3D Design

提出的研究有可能改变计算机辅助设计（CAD）系统的本质，特别是通过建立一个允许草图和3D建模在CAD系统中共存的系统，放弃了系统必须始终保持有效3D模型的假设。在探索素描和对象之间的中间地带，提出的工作解决了交互式图形中的圣杯问题之一：如何在2D和3D之间无缝移动。这种理解不仅包括计算机图形学的视角（算法和表示），还包括建筑设计的视角，其中实践者对形式创作有深入的工作知识，但可能缺乏计算或数学背景。为了支持在3D模型上绘制草图，设计师需要发明和指定用于创建设计元素、合并源材料和在3D空间中组织它们的有用操作，并定义和实现那些在自由流动的交互环境中计算可行的操作。迭代设计和开发的研究方法使该项目能够关注计算机科学家背景下创意设计师的需求及其对计算可行性的理解。更广泛的影响：该项目通过提供创建和编辑3D形式的新方法，对创意设计过程产生了更广泛的影响，也影响了2D表示占主导地位的思想交流。

The proposed research has the potential to transform the nature of computer aided design (CAD) systems, specifically by building a system that allows sketching and 3D modeling to co-exist in a CAD system that abandons the assumption that a system must maintain a valid 3D model at all times. In exploring the middle ground between sketch and object, the proposed work addresses one of the holy grail problems in interactive graphics: how to move seamlessly between 2D and 3D. This understanding includes not only a computer graphics perspective (algorithms and representations) but also an architectural design perspective, where practitioners have a deep working knowledge of form creation but may lack a computational or mathematical background. To support sketching on 3D models, useful operations for creating design elements, incorporating source material and organizing them in 3D space need to be invented and specified by designers and those that are computationally feasible in a free flowing interactive environment are defined and implemented. The research method of iterative design and development allows this project to focus on the needs of creative designers in the context of computer scientists and their understanding of computational feasibility. Broader Impact: The project has a broader impact on the creative design process by offering a novel approach for creating and editing 3D form, and also impacts the communication of ideas where 2D representation has dominated.