| stream | The AnimationStream that holds the animated values. |
| position | The position of the transform relative to the parent. |
| rotation | The rotation of the transform relative to the parent. |
| scale | 親の Transform オブジェクトから見た相対的なスケール |
| useMask | Set to true to write the specified parameters if the matching stream parameters have not already been modified. |
Sets the position, rotation and scale of the transform relative to the parent.