Vertex welding is a crucial feature to fix broken or messy geometry such as overlapping vertices and superfluous UV splits. It can be an important preprocessing step that improves the topology of a mesh prior to optimization, enabling InstaLOD's optimizer to produce even better results.
InstaLOD Studio provides multiple ways to access vertex welding:
Mesh menu after selecting the target meshes.
Mesh Toolkit (MTK) operation.
Welding Threshold welds vertices that are below the specified distance. The
Welding Normal Angle prevents welding of normals if the angle between the welded normal and the wedge normal is above the specified angle in degrees.
As vertex welding works on a per-part level, individual parts need to be combined first before they can be welded with one another.
Individual parts of car hood need to be combined before welding vertices.