Waverbird differentiated smoothing

Replies to This Discussion

Permalink Reply by martyn hogg on January 11, 2014 at 1:56pm

Not that I'm aware of but you can change the way naked edges are smoothed so by having naked edges fixed and having naked edges in places you do not want to be smoothed then you have some sort of control.

If you make your mesh in parts, then you can smooth different parts then weld them together after smoothing the sections you want.

I've just downloaded the Evolute Tools plugin for Rhino and that seems to allow you to manually fix vertices so that they don't move during smoothing so maybe there is a similar approach somewhere deep within GH??

Permalink Reply by Christian Schmidts on January 11, 2014 at 8:50pm

its quite easy to achieve. subdivide the mesh once with the a component that smooths it and once with the corresponding one that doesn't. afterwards you can use the vector between the vertices of the two meshes to differentiate the smoothing. and finally reconstruct with the mesh with the same faces and the new vertices.. 

Permalink Reply by martyn hogg on January 12, 2014 at 2:58am

won't the smoothed mesh have slightly different numbers of faces? Does this matter?

Permalink Reply by Daniel Piker on January 12, 2014 at 4:20am

If you use Laplacian smoothing instead of subdivision, it just moves the vertices without altering the topology (so doesn't alter the number of faces) and Christian's method should work.

Permalink Reply by Christian Schmidts on January 12, 2014 at 6:44am

yes the number of faces should be the same for the two meshes. if that is true you can use also subdivision. at least the the 'red' pair.

at attached you an example in dependence to the distance of the vertices to a point.

Attachments:

• local_smoothing_subd.gh, 12 KB

Permalink Reply by James Park on January 12, 2014 at 6:36am

Thanks Christian,

Great solution!