Designing 3D objects from scratch is difficult, especially when the user intent is fuzzy without a clear target form. In the spirit of modeling-by-example, we facilitate design by providing reference and inspiration from existing model contexts. We rethink model design as navigating through different possible combinations of part assemblies based on a large collection of pre-segmented 3D models. We propose an interactive sketch-to-design system, where the user sketches prominent features of parts to combine. The sketched strokes are analyzed individually and in context with the other parts to generate relevant shape suggestions via a design gallery interface. As the session progresses and more parts get selected, contextual cues becomes increasingly dominant and the system quickly converges to a final design. As a key enabler, we use pre-learned part-based contextual information to allow the user to quickly explore different combinations of parts. Our experiments demonstrate the effectiveness of our approach for efficiently designing new variations from existing shapes.

通过借鉴现有模型的背景和启示，我们提出了一种交互式的草图设计系统，其中用户可以通过预制的3D模型部件组成来探索不同的设计组合。运用预先学习的基于零件的上下文信息，使用户能够快速探索不同的组合方式，从而高效地设计新的变体。

基于上下文的零部件装配的素描设计