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Unity Engine

LookAt

Create a "look at" matrix.
Read time 1 minuteLast updated 4 days ago

Definition

  • Type: Method
  • Namespace: UnityEngine
  • Assembly: UnityEngine.CoreModule

LookAt(Vector3, Vector3, Vector3)

Create a "look at" matrix.
public static Matrix4x4 LookAt(Vector3 from, Vector3 to, Vector3 up)

Parameters

from

Vector3
The source point.

to

Vector3
The target point.

up

Vector3
The vector describing the up direction (typically Vector3.up).

Returns

Type

Description

Matrix4x4The resulting transformation matrix.

Remarks

Given a source point, a target point, and an up vector, computes a transformation matrix that corresponds to a camera viewing the target from the source, such that the right-hand vector is perpendicular to the up vector.
The resulting matrix corresponds to 
Matrix4x4.TRS(from, Quaternion.LookRotation(to-from, up), Vector3.one)
.
Additional Resources: Matrix4x4.TRS, Quaternion.LookRotation, Camera.worldToCameraMatrix, CommandBuffer.SetViewMatrix.

LookAt(Vector3, Vector3, Vector3)

Create a "look at" matrix.
public static Matrix4x4 LookAt(in Vector3 from, in Vector3 to, in Vector3 up)

Parameters

from

Vector3
The source point.

to

Vector3
The target point.

up

Vector3
The vector describing the up direction (typically Vector3.up).

Returns

Type

Description

Matrix4x4The resulting transformation matrix.

Remarks

Given a source point, a target point, and an up vector, computes a transformation matrix that corresponds to a camera viewing the target from the source, such that the right-hand vector is perpendicular to the up vector.
The resulting matrix corresponds to 
Matrix4x4.TRS(from, Quaternion.LookRotation(to-from, up), Vector3.one)
.
Additional Resources: Matrix4x4.TRS, Quaternion.LookRotation, Camera.worldToCameraMatrix, CommandBuffer.SetViewMatrix.