Split

Split an edge, split a face, or add an edge loop.

Split Edge

Insert a new vertex along an edge, splitting the edge into two new edges.

This tool is useful when you need to refine the geometry of a PolyNURBS object. Note that this tool permanently modifies the selected object rather than creating a new one, so it does not have construction history.

  1. On the ribbon, click the PolyNURBS tab.
  2. In the Split group, click the Split Edge icon.
  3. Click the PolyNURBS object.
    Edges will be indicated in yellow upon hovering.
  4. In the guide bar, choose from the following options:
    • To create equally spaced snap points along the selected edge, enter a Subdivision Snap value.

      For example, if you want to add a vertex one-quarter of the way along a selected edge, set the Subdivision Snap value to 3; doing so places 3 control points along the edge to create four evenly spaced subdivisions.

    • To add one vertex at each Subdivision Snap point in one click, select Multiple Split.
    Note: By default the subdivision snap is set to 1. This will allow you to snap the vertex to the midpoint on the edge. You can turn the subdivision snap to 0 to disable the midpoint snap.
  5. Click the edge to split, and then (if Multiple Split is not enabled), you can drag the division point to reposition it.
  6. Right-click and mouse through the check mark to exit, or double-right-click.

Split Faces

Split a PolyNURBS face by inserting edges between two points. You can do this to a chain of faces at a time.

  1. On the ribbon, click the PolyNURBS tab.
  2. In the Split group, click the Split Faces icon.
  3. Type a Subdivision Snap.
  4. Split a chain of faces:
    1. To add a division point, click an edge.
    2. To reposition the division point, drag it.
    3. Repeat the previous steps as many times as desired.
  5. To split a new chain of faces, in the guide bar, click New Chain, and then repeat Step 4.
  6. Right-click and mouse through the check mark to exit, or double-right-click.

Edge Loop

Create an edge loop around the surface of a PolyNURBS.

This tool can only be applied to quad (four-sided) faces. The edge loop is created perpendicular to the selected edge and continues through all quad polygons until it reaches either an open edge or a non–quad polygon.

  1. On the ribbon, click the PolyNURBS tab.
  2. In the Split group, click the Edge Loop icon.
  3. Click the PolyNURBS object.
    Edges will be indicated in yellow upon hovering.
  4. Choose from the following options:
    • To create equally spaced snap points along the selected edge, enter a Subdivision Snap value.

      For example, if you want to add a vertex one-quarter of the way along a selected edge, set the Subdivision Snap value to 3; doing so places 3 control points along the edge to create four evenly spaced subdivisions.

    • To add one vertex at each Subdivision Snap point in one click, select Multiple Split.
  5. Click the edge to split, and then (if Multiple Split is not enabled), without releasing mouse button, you can drag the division point to reposition it.
  6. Right-click and mouse through the check mark to exit, or double-right-click.