SpeedTree | SpeedTree 8.2: Extending a Photogrammetry or Custom Trunk Using Vertex Blending @SpeedTreeMiddleware | Uploaded 5 years ago | Updated 2 hours ago
SpeedTree artist Sonia Piasecki gives you a quick overview of the Stitch feature in SpeedTree v8.2.

The Stitch is used to connect two nodes together. The most common use is to blend a photogrammetry based mesh into a procedural branch from which the remainder of the model is constructed.

Vertex Blending Stitch documentation:
http://docs8.speedtree.com/modeler/doku.php?id=pg_extend_trunk_vertex

http://docs8.speedtree.com/modeler/doku.php?id=stitch_generator

More info at http://www.speedtree.com