Houdini 20.0 Nodes Geometry nodes

PolyStitch geometry node

Stitches polygonal surfaces together, attempting to remove cracks.

This node type is deprecated. It is scheduled to be deleted in an upcoming revision of Houdini.

Use Fuse instead

(Since version 18.0.)

First, the boundaries of all the polygons to be stitched are found. An edge is a boundary edge if it is shared by no other polygon. The uniqueness of edges is determined by point numbers, and not by spatial positioning. Each boundary is then split at each “corner” into a number of pieces. A list of corner points can be manually specified, or any point at which the boundary changes direction by a certain amount can be flagged as a corner.

Finally, any two boundary pieces that are within the tolerance of each other are stitched together. This is performed by snapping the points of the high detail edge to those of the low detail edge.


Polygons to Stitch

The polygons to consider for stitching.

Corner Points

A list of point numbers that are to be considered breaks in the boundary edges.

Max Dist to Stitch

The maximum distance which two edges can be from each other and still be stitched together

Consolidate Points

When several points along ONE edge are snapped to the same position, consolidate them into a single point.

Automatically Find Corners

Whenever an edge changes direction at a point more than the specified angle, mark that point as a corner.

Corner Angle

The maximum angle a boundary can change at a point before it becomes a corner.

See also

Geometry nodes