Mesh clustering

Dependencies

This node requires pyacvd library to work. One can install it in addon settings:

Functionality

This node takes a surface mesh and returns a uniformly meshed surface using voronoi clustering.

Inputs

This node has the following inputs:

• Vertices, Edges, Faces - Source mesh

• Subdivide - if source mesh is not dense enough for uniform remeshing then subdivide source mesh. A linear subdivision of the mesh. If model has high dense one can low Subdivide param to zero. For low dense mesh a value 3 is good. (min=0)

  

• Max itereation - Max iteration of clusterization. (min=0)

• Clusters - Cluster counts. (min=4)

  

• Matrixes. Spread you source meshes by matrixes. You can use vertices of another meshes as matrixes:

  

Parameters

Triangulation.

Before clusterisation your source meshes has to be triangulated. Here are parameters for process of triangulation.

If source mesh has ngons woth different count of vertices then source mesh has to be triangulated with the next methods [Quads mode and Polygons mode]. If ngons of source mesh are equals (they can has 3,4,5 verts but for all faces) the mesh will be triangulated with pyvista method triangulate authomatically.

• Quads mode:

  • Beauty. Split the quads in nice triangles, slower method

  • Fixed. Split the quads on the 1st and 3rd vertices

  • Fixed Alternate. Split the quads on the 2nd and 4th vertices

  • Shortest Diagonal. Split the quads based on the distance between the vertices

• Polygons mode:

  • Beauty. Arrange the new triangles nicely, slower method

  • Clip. Split the ngons using a scanfill algorithm

If your mesh is low poly and you want to smooth it then you can use subdivide mode:

• Subdiv mode:

  • Butterfly.

  • Loop. Butterfly and loop subdivision perform smoothing when dividing, and may introduce artifacts into the mesh when dividing

  • Linear. Linear subdivision results in the fastest mesh subdivision, but it does not smooth mesh edges, but rather splits each triangle into 4 smaller triangles

  

Outputs

Clusterized mesh:

• Vertices

• Edges

• Polygons

  

• Centers of Polygons

• Normals of Polygons

  

Example of Usage

High poly clusterizing

Subdivide is zero.

High poly clusterizing with dual mesh

example_001