apply method
Implementation
@override
void apply(ActorComponent? component, double mix) {
  ActorPath path = component as ActorPath;
  int l = _vertices.length;
  Float32List? wr = path.vertexDeform;
  if (mix == 1.0) {
    for (int i = 0; i < l; i++) {
      wr![i] = _vertices[i];
    }
  } else {
    double mixi = 1.0 - mix;
    for (int i = 0; i < l; i++) {
      wr![i] = wr[i] * mixi + _vertices[i] * mix;
    }
  }
  path.markVertexDeformDirty();
}