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Vector3.Angle

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public static function Angle(from: Vector3, to: Vector3): float;
public static float Angle(Vector3 from, Vector3 to);

Parameters

from The vector from which the angular difference is measured.
to The vector to which the angular difference is measured.

Description

Returns the angle in degrees between from and to.

The angle returned is the unsigned acute angle between the two vectors. This means the smaller of the two possible angles between the two vectors is used. The result is never greater than 180 degrees.

#pragma strict
public class AngleExample extends MonoBehaviour {
	public var target: Transform;
	// almost towards the target
	function Update() {
		var targetDir: Vector3 = target.position - transform.position;
		var angle: float = Vector3.Angle(targetDir, transform.forward);
		if (angle < 5.0f)
			print("close");
	}
}
using UnityEngine;

public class AngleExample : MonoBehaviour { public Transform target;

// prints "close" if the z-axis of this transform looks // almost towards the target

void Update() { Vector3 targetDir = target.position - transform.position; float angle = Vector3.Angle(targetDir, transform.forward);

if (angle < 5.0f) print("close"); } }

See Also: SignedAngle function.