Unity - Scripting API: Matrix4x4.SetColumn

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Declaration

public void SetColumn(int index, Vector4 column);

Description

Sets a column of the matrix.

You use this to build transformation matrices using right, up and forward vectors:

using UnityEngine;public class ExampleScript : MonoBehaviour
{
    // build a matrix from a transform.
    Matrix4x4 matrix = new Matrix4x4();
    /// Build a matrix from a transform.
    void Start()
    {
        matrix.SetColumn(0, transform.right);
        matrix.SetColumn(1, transform.up);
        matrix.SetColumn(2, transform.forward);
        var p = transform.position;
        matrix.SetColumn(3, new Vector4(p.x, p.y, p.z, 1));
    }
}

The i-th column is set from v. i must be from 0 to 3 inclusive.