Module clearance

Closest approach between two meshes.

Clearance is the clash-detection question: not “do these collide” but “if not, by how much do they miss”. A boolean answers the first and discards the second.

The BVH supplies candidate triangle pairs within the search length; the exact distance for each surviving pair is computed directly. Distance is a measurement, not a predicate, so f64 is the right currency here and ADR 0045’s reasoning applies: the value is reported, not used to decide topology.

Functions

min_gap

Smallest distance between the surfaces of a and b.