AI RESEARCH
S2MDF: A Plug-And-Play Layer for Intersection-Free Multi-Object Signed Distance Fields
arXiv CS.CV
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ArXi:2605.29761v1 Announce Type: new Compositional implicit surface representations model scenes as collections of objects, each encoded by a Signed Distance Field (SDF). A fundamental limitation of this approach is that multiple SDFs can produce geometries that interpenetrate, violating physical plausibility. Existing mitigation strategies rely on soft penalty terms that reduce but do not eliminate intersections, and require careful loss weighting. To truly prevent interpenetration, we propose a hard constraint on vector-valued SDFs and.