Harold: a world made of drawings
Harold: a world made of drawings
复制标题
哈罗德：一个由图画组成的世界
DOI：
10.1145/340916.340927
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
R. Zeleznik
中科院分区：
文献类型：
--
作者：
Jonathan M. Cohen;J. Hughes;R. Zeleznik
从2D输入交互地创建3D场景的问题是一个引人注目的问题，最近的进展令人兴奋。我们介绍了我们的系统Harold，它结合了现有技术的想法并引入了新的概念来创建一个用于创建3D世界的交互系统。哈罗德的界面范型是绘图：只需用2D输入设备绘制它们，就可以创建一个整体对象。Harold中的大多数3D对象都是平面笔划的集合，当摄影机在世界中移动时，这些笔划会以依赖于视图的方式重定向。在Harold中创建的虚拟世界是使用基于笔划的系统渲染的，因此当用户在世界中导航时，世界将保持手绘外观。Harold不适合表示某些类别的3D对象，尤其是几何规则或极不对称的对象。然而，Harold支持足够大的对象类别，用户可以快速创建富有表现力和视觉丰富的3D世界。
The problem of interactively creating 3D scenes from 2D input is a compelling one, and recent progress has been exciting. We present our system, Harold, which combines ideas from existing techniques and introduces new concepts to make an interactive system for creating 3D worlds. The interface paradigm in Harold is drawing :a ll objects are created simply by drawing them with a 2D input device. Most of the 3D objects in Harold are collections of planar strokes that are reoriented in a view-dependent way as the camera moves through the world. Virtual worlds created in Harold are rendered with a stroke-based system so that a world will maintain a hand-drawn appearance as the user navigates through it. Harold is not suitable for representing certain classes of 3D objects, especially geometrically regular or extremely asymmetric objects. However, Harold supports a large enough class of objects that a user can rapidly create expressive and visually rich 3D worlds.