SubDMatch

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New in V9

SubD Tools

The SubDMatch command modifies the shape of a SubD by mapping its edge chain to a target chain of curves or edges from SubD, mesh, or surface objects.

Steps

  1. Select a chain of SubD edges and press Enter.

  2. Select the target boundary, which can be a chain of curves or edges from SubD, mesh, or surface objects.

  • For optimal results, the target boundary must be SubD-friendly and share the same structure as the SubD edge chain. Otherwise, the match can only be approximate.

  • The SubD edge chain can be open or closed. When it is open, the first and last vertices are tagged as creased vertices.

Command-line options

MatchLocations

Determines how the vertices of the SubD edge chain are mapped along the target boundary.

UniformParameters

Matches the edges by equal distances in the parameter space.

ClosestPoints

Matches the edges by closest points in the geometry space.

EditPoints

Matches the edges by edit points.

Knots

Matches edges by knot spans.

This option is available when both edge chains are SubD-friendly and have the same spans.

SeamLocation

Controls how the start point (seam) on the closed boundary is chosen.

This option is available when the target boundary is closed.

ClosestPoint

Places the seam at the location nearest to the first vertex of the SubD edge chain.

ClosestKnot

Places the seam at the knot closest to the first vertex of the SubD edge chain.

MatchTangents

Specifies whether the SubD edge are adjusted to match the tangents of the target boundary.

Bulge

Controls the smoothness of the tangent transition by moving the second row of control points closer (smaller value) or farther away (larger value).

This option is available when MatchTangents=Yes.

FlipTangents

Reverses the tangent direction.

This option is available when MatchTangents=Yes.