Loop Subdivision (LoopSubdivisionFilter)
This filter iteratively divides each triangle into four triangles. New points are placed so the output surface is smooth.
The Loop Subdivision filter increases the granularity of a polygonal mesh. It works by dividing each triangle in the input into four new triangles. It is named for Charles Loop, the person who devised this subdivision scheme. This filter only operates on triangles, so a data set that contains other types of polygons should be passed through the Triangulate filter before applying this filter to it. This filter only operates on polygonal data (specifically triangle meshes), and it produces polygonal output.

PropertyDescriptionDefault Value(s)Restrictions
Input
(Input)		 This property specifies the input to the Loop Subdivision filter.  

The selected object must be the result of the following: sources (includes readers), filters.

The selected dataset must be one of the following types (or a subclass of one of them): vtkPolyData.

 
Number of Subdivisions
(NumberOfSubdivisions)		 Set the number of subdivision iterations to perform. Each subdivision divides single triangles into four new triangles. 1

The value must be greater than or equal to 1 and less than or equal to 4.