| inTangents | 頂点ごとの接線 | 
メッシュの接線を設定します。
See Also: tangents property.
| inTangents | 頂点ごとの接線 | 
| start | Index of the first element to take from the input array. | 
| length | Number of elements to take from the input array. | 
Sets the tangents of the Mesh, using a part of the input array.
This method behaves as if you called SetTangents with an array that is a slice of the whole array, starting at start index and being of a given length. The resulting Mesh has length amount of vertices.