Is it possible to fit a linerenderer turn in the rotation of the parent object?

Hi~ I'm a developer in Korea.

I draw grid use linerenderer.

But it did not apply to the renderer line rotation during debugging.

Most people rotate positions with the setPosition () function.

Do you have any way to rotate a simple line renderer how to do this with their parents object?

Why not use the setPosition () function is that line too many renderers have become degraded.

Thank you for your help.

Have a nice day.

P.S : I used the google translator. If you do not understand this sentence ask questions.