This paper introduces a new method to stylize 3D geometry. The key observation is that the surface normal is an effective instrument to capture different geometric styles. Centered around this observation, we cast stylization as a shape analogy problem, where the analogy relationship is defined on the surface normal. This formulation can deform a 3D shape into different styles within a single framework. One can plug-and-play different target styles by providing an exemplar shape or an energy-based style description (e.g., developable surfaces). Our surface stylization methodology enables Normal Captures as a geometric counterpart to material captures (MatCaps) used in rendering, and the prototypical concept of Spherical Shape Analogies as a geometric counterpart to image analogies in image processing.

翻译：本文介绍了一种新的3D几何方法。 关键观察是, 表面常态是捕捉不同几何风格的有效工具。 围绕此观察, 我们将石化作为形状类比问题, 类比关系在表面正常度上定义。 这种配方可以在单一框架内将3D形状变形成不同的样式。 可以通过提供示例形状或基于能源的样式描述( 如可开发表面) 来插插插不同的目标样式。 我们的表层定型方法可以使正常捕捉成为用于制作的材料捕捉( MatCaps)的几何对应物, 以及将球形形状分析作为图像处理中图像模拟的几何对应物的原形概念 。