updatePath method
Re-sweeps the profile along path, reusing the GPU buffers.
The profile, station count, and caps are unchanged, so the topology is stable. Requires GeometryStorage.updatable.
Implementation
void updatePath(ScenePath path) {
final arrays = buildExtrudeArrays(
path,
profile: _profile,
stations: _stations,
caps: _caps,
);
updatePositions(arrays.positions);
updateNormals(arrays.normals);
updateTexCoords(arrays.texCoords);
}