Adaptive Subdivide SOP (Patreon)

Adaptively subdivides geometry using proximity look ups to another geometry.

Subdivision depth: 14

6.5M vs 26.8B polygons (about 4K less)

To avoid having holes in the geometry, use the Houdini-Catmull Clark algorithm. However this will be significantly slower, and prohibitively expensive at these subdivision levels.

Adaptive Subdivide SOP

Scene

EDIT: Improved the curve look up to be resolution independent.