Celtic Bunny

Upon subdividing a directly produced quad mesh ( http://www.grasshopper3d.com/photo/mesh-to-nurbs-polysurface-conver... ) from a uniform Kangaroo 1 MeshMachine remesh, I noticed that little weave-ready ribbons appeared:

Though the Mesh+ plug-in has a few "weave" components, they only make local loops between adjacent mesh faces.

So I did the bookeeping required to create little construction ellipses and little stubby start and end lines offset in and out from each mesh edge to allow a curve blend and then rail sweep of locally rescaled ellipses along those curves, with lots of control.

There are occasional tube self overlaps due to kinks that would require fixing in other software to 3D print the output.

Interestingly, the result is sometimes a single knot curve, more often a mere handful.

Replies to This Discussion

Permalink Reply by David Lemberski on April 26, 2016 at 6:30am

Hey Nik,

did you try instant-meshes (https://github.com/wjakob/instant-meshes)? It's a free and open source quad remesher.

Cheers,

David

Permalink Reply by Nik Willmore on April 26, 2016 at 5:34pm

Great of them to include binaries, but having seen ZBrush suddenly dominate the quad remeshing field, I recall in horror the bizarre spirals that formed through holes in a bulk slab, and how things skewed in simply odd fashion. It was required to place guide curves but so many of them. Now guide curves just help crystallize a near perfect result. So much about quad remeshing is a black box. Here I compare $30K Geomagic Freeform to ZBrush ZRemesher combined with T-Splines and found that manual guide curves still helped immensely:

The overall chess game must include how well T-Splines converts to NURBS. Quad meshing is merely a means to a NURBS end and the more regular it is the better the T-Splines black box can merge quads into big surfaces that are quadrangular but not "quads."

Permalink Reply by Marcin Nowak on August 11, 2017 at 5:06am