Tootfinder

Adaptive Tetrahedral Grids for Volumetric Path-Tracing
Anis Benyoub, Jonathan Dupuy
https://arxiv.org/abs/2506.11510 https://arxiv.or…

Adaptive Tetrahedral Grids for Volumetric Path-Tracing
We advertise the use of tetrahedral grids constructed via the longest edge bisection algorithm for rendering volumetric data with path tracing. The key benefits of such grids is two-fold. First, they provide a highly adaptive space-partitioning representation that limits the memory footprint of volumetric assets. Second, each (tetrahedral) cell has exactly 4 neighbors within the volume (one per face of each tetrahedron) or less at boundaries. We leverage these properties to devise optimized alg…