Constructive Solid Geometry on Neural Signed Distance Fields

Semantic Shape Editing with Parametric Implicit Templates

“…For instance, common operations on SDFs like union (min) and substraction/intersection (max) do not generally produce SDFs (see Fig. 2) and xing the resulting eld is an open problem [Marschner et al 2023]. Further, even if our implicits are mostly built as compositions and blending of simple parametric primitives -like most ones found in the demoscene community or typically used by modelers, we do not rely on per-primitive elds (e.g., like [Vaillant et al 2013]), nor are we enriching our programs to track point deformations (e.g., like [Michel and Boubekeur 2021]).…”