We present a new framework for sketch-based modeling and animation of 3D organic shapes that can work entirely in an intuitive 2D domain, enabling a playful, casual experience. Unlike previous sketch-based tools, our approach does not require a tedious part-based multi-view workflow with the explicit specification of an animation rig. Instead, we combine 3D inflation with a novel rigidity-preserving, layered deformation model, ARAP-L, to produce a smooth 3D mesh that is immediately ready for animation. Moreover, the resulting model can be animated from a single viewpoint --- and without the need to handle unwanted inter-penetrations, as required by previous approaches. We demonstrate the benefit of our approach on a variety of examples produced by inexperienced users as well as professional animators. For less experienced users, our single-view approach offers a simpler modeling and animating experience than working in a 3D environment, while for professionals, it offers a quick and casual workspace for ideation.

中文翻译：

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怪物捣碎

我们提出了一个基于草图的建模和 3D 有机形状动画的新框架，它可以完全在直观的 2D 域中工作，从而实现有趣、随意的体验。与以前基于草图的工具不同，我们的方法不需要繁琐的基于零件的多视图工作流程以及动画装备的明确规范。相反，我们将 3D 膨胀与新颖的保持刚度的分层变形模型 ARAP-L 相结合，以生成可立即用于动画的平滑 3D 网格。此外，生成的模型可以从单个视点进行动画处理，而无需像以前的方法所要求的那样处理不需要的相互渗透。我们展示了我们的方法对经验不足的用户和专业动画师制作的各种示例的好处。对于经验不足的用户，