Subdivide Node

Functionality

This node applies Blender’s Subvidide operation to the input mesh. Please note that of options available differs from usual editing operator.

Inputs

This node has the following inputs:

• Vertrices
• Edges. For this node to produce interesting result, this input must be provided.
• Faces
• EdgeMask. Selected edges to be subdivided. Faces surrounded by subdivided edges can optionally be subdivided too.
• Number of Cuts
• Smooth
• Fractal
• Along normal
• Seed

Parameters

This node has the following parameters:

• Show Old. If checked, then outputs with “old” geometry will be shown. By default not checked.
• Show New. If checked, then outputs with newly created geometry will be shown. By default not checked.
• Show Options. If checked, then following parameters will be shown on the node itself. Otherwise, they will be available only in the N panel. By default not checked.
• Falloff. Smooth falloff type. Please refer to examples below for demonstration.
• Corner cut type. This controls the way quads with only two adjacent selected edges are subdivided. Available values are:
  • Inner vertices
  • Path
  • Fan
  • Straight Cut
• Grid fill. If checked, then fully-selected faces will be filled with a grid (subdivided). Otherwise, only edges will be subdiveded, not faces. Checked by default.
• Only Quads. If checked, then only quad faces will be subdivided, other will not. By default not checked.
• Single edge. If checked, tessellate the case of one edge selected in a quad or triangle. By default not checked.
• Even smooth. Maintain even offset when smoothing. By default not checked.
• Number of Cuts. Specifies the number of cuts per edge to make. By default this is 1, cutting edges in half. A value of 2 will cut it into thirds, and so on. This parameter can be also provided as input.
• Smooth. Displaces subdivisions to maintain approximate curvature, The effect is similar to the way the Subdivision Surface Modifier might deform the mesh. This parameter can be also provided as input.
• Fractal. Displaces the vertices in random directions after the mesh is subdivided. This parameter can be also provided as input.
• Along normal. If set to 1, causes the vertices to move along the their normals, instead of random directions. Values between 0 and 1 lead to intermediate results. This parameter can be also provided as input.
• Seed. Random seed. This parameter can be also provided as input.

Outputs

This node has the following outputs:

• Vertices. All vertices of resulting mesh.
• Edges. All edges of resulting mesh.
• Faces. All faces of resulting mesh.
• NewVertices. All vertices that were created by subdivision. This output is only visible when Show New parameter is checked.
• NewEdges. Edges that were created by subdividing faces. This output is only visible when Show New parameter is checked.
• NewFaces. Faces that were created by subdividing faces. This output is only visible when Show New parameter is checked.
• OldVertices. Only vertices that were created on previously existing edges. This output is only visible when Show Old parameter is checked.
• OldEdges. Only edges that were created by subdividing existing edges. This output is only visible when Show Old parameter is checked.
• OldFaces. Only faces that were created by subdividing existing faces. This output is only visible when Show Old parameter is checked.

Note: Indicies in NewEdges, NewFaces, OldEdges, OldFaces outputs relate to vertices in Vertices output.

Examples of usage

The simplest example, subdivide a cube:

Subdivide one face of a cube, with smoothing:

Subdivide a cube, with smooth falloff type = Smooth:

Subdivide a torus, with smooth falloff type = Sphere: