hollowing params renamed, filtering generalized

src/libslic3r/OpenVDBUtils.hpp

@@ -18,13 +18,15 @@ TriangleMesh volumeToMesh(const openvdb::FloatGrid &grid,
                           double                    adaptivity = 0.0,
                           bool relaxDisorientedTriangles       = true);
 
+using HollowingFilter = std::function<void(openvdb::FloatGrid& grid, double thickness, double scale)>;
+
 // Generate an interior for any solid geometry maintaining a given minimum
 // wall thickness. The returned mesh has triangles with normals facing inside
 // the mesh so the result can be directly merged with the input to finish the
 // hollowing.
-// TODO: The thicknes is not strictly maintained due to the used gaussian filter
 TriangleMesh hollowed_interior(const TriangleMesh &mesh, double min_thickness,
-                               double accuracy = 0.5, double smoothing = 0.5);
+                               double quality = 0.5,
+                               HollowingFilter filt = nullptr);
 
 } // namespace Slic3r