void SetLookAtWeight	(	float	weight,
		float	bodyWeight = `0f`,
		float	headWeight = `1f`,
		float	eyesWeight = `0.5f`,
		float	clampWeight = `0.5f`,
		float	clampWeightHead = `0.5f`,
		float	clampWeightEyes = `0.3f`
	)

Sets the look at weight. NOTE: You are welcome to edit the weights directly, this method is here only to match the Unity's built in IK API.