The geometry source that defines the influence of each bone on the positions the geometry’s vertices.
- iOS 8.0+
- macOS 10.10+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
This geometry source’s
semantic property must be
bone. Its data is an array of floating-point vectors, whose
components count is the number of bones influencing each vertex. Each vector corresponds to a vertex in the geometry’s
vertex geometry source, and each component in a vector specifies the influence of a bone on that vertex’s position. The
bone source determines which nodes in the bones array correspond to each component in the vector. A component value of
0 means that the bone has no influence on that vertex; positive or negative values scale the transformation of a bone node before SceneKit applies that transformation to the vertex.