Voxels are a popular choice to encode complex geometry. Their regularity makes updates easy and enables random retrieval of values. The main limitation lies in the poor scaling with respect to resolution. Sparse voxel DAGs (Directed Acyclic Graphs) overcome this hurdle and offer high‐resolution representations for real‐time rendering but only handle static data. We introduce a novel data structure to enable interactive modifications of such compressed voxel geometry without requiring de‐ and recompression. Besides binary data to encode geometry, it also supports compressed attributes (e.g., color). We illustrate the usefulness of our representation via an interactive large‐scale voxel editor (supporting carving, filling, copying, and painting).

中文翻译：

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交互式修改压缩稀疏体素表示

体素是编码复杂几何体的流行选择。它们的规律性使更新变得容易并能够随机检索值。主要限制在于分辨率方面的缩放比例不佳。稀疏体素 DAG（有向无环图）克服了这一障碍，并为实时渲染提供高分辨率表示，但仅处理静态数据。我们引入了一种新颖的数据结构，可以在不需要解压缩和重新压缩的情况下对这种压缩的体素几何进行交互式修改。除了用于编码几何的二进制数据外，它还支持压缩属性（例如，颜色）。我们通过交互式大型体素编辑器（支持雕刻、填充、复制和绘画）来说明我们的表示的有用性。