Shape generation is the practice of producing 3D shapes as various representations for 3D content creation. Previous studies on 3D shape generation have focused on shape quality and structure, without or less considering the importance of semantic information. Consequently, such generative models often fail to preserve the semantic consistency of shape structure or enable manipulation of the semantic attributes of shapes during generation. In this paper, we proposed a novel semantic generative model named 3D Semantic Subspace Traverser that utilizes semantic attributes for category-specific 3D shape generation and editing. Our method utilizes implicit functions as the 3D shape representation and combines a novel latent-space GAN with a linear subspace model to discover semantic dimensions in the local latent space of 3D shapes. Each dimension of the subspace corresponds to a particular semantic attribute, and we can edit the attributes of generated shapes by traversing the coefficients of those dimensions. Experimental results demonstrate that our method can produce plausible shapes with complex structures and enable the editing of semantic attributes. The code and trained models are available at https://github.com/TrepangCat/3D_Semantic_Subspace_Traverser

我们提出了一种新颖的语义生成模型，名为3D语义子空间穿越器，用于特定类别3D形状的生成和编辑。我们的方法利用隐函数作为3D形状表示，并将新颖的潜在空间生成对抗网络与线性子空间模型相结合，以发现3D形状的本地潜在空间中的语义维度。子空间的每个维度对应于特定的语义属性，我们可以通过遍历这些维度的系数来编辑生成形状的属性。实验结果表明，我们的方法能够生成具有复杂结构的合理形状，并实现语义属性的编辑。代码和训练好的模型可以在此https URL中获得。

3D语义子空间遍历器：赋予 3D 生成模型形状编辑能力