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