boneWeights
The semantic for bone weight data, used for skeletal animation of skinned surfaces.
Declaration
static let boneWeights: SCNGeometrySource.SemanticDiscussion
For a geometry source, this semantic identifies data containing skeletal animation data for each vertex in the geometry. SceneKit uses this information to determine how much a vertex’s position is influenced by the positions of bone nodes in the skeleton.
For a custom shader program, you use this semantic to bind SceneKit’s bone weight data to an input attribute of the shader.
For details on skeletal animation, see SCNSkinner.