Levelset values on vertices of volOctree

[gitg0n]

Good evening

Is it somehow possible to calculate accurate levelset values on the vertices of a volOctree instead of the cell centers?

I'm currently calculating cell values for the levelset (based on a STL geometry) and then interpolating the cell values onto the vertices by hand. However, this can lead to strange results on vertices close to sharp corners of the source geometry.

Cheers