Robust Constrained Tetrahedralization with Steiner-point-free Boundaries

Robust constrained tetrahedralization is a core building block for volumetric simulation, collision, and mesh processing, but it gets tricky when boundary fidelity matters. This new TOG paper focuses on producing tetrahedral meshes while preserving boundaries without introducing Steiner points on the boundary itself, a constraint that can simplify downstream asset and simulation workflows.

For game developers, that kind of guarantee is useful anywhere a mesh has to stay watertight and predictable: FEM-style deformation, destruction, physics preprocessing, and tools that convert artist-authored surfaces into simulation-ready volumes. Boundary Steiner points often complicate correspondence, UV-adjacent workflows, and any pipeline that expects the original surface topology to remain intact.

The paper appears in ACM Transactions on Graphics, Volume 46, Issue 1, spanning pages 1-15, with a February 2027 publication date. The exact implementation details and performance characteristics are not provided here, but the headline contribution is clear: robust tetrahedralization with a stricter boundary constraint than many practical pipelines can tolerate today.