Matrix4x4.SetColumn 设置列

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	public Matrix4x4 matrix = new Matrix4x4();
	void Start() {
		matrix.SetColumn(0, transform.right);
		matrix.SetColumn(1, transform.up);
		matrix.SetColumn(2, transform.forward);
		Vector3 p = transform.position;
		matrix.SetColumn(3, new Vector4(p.x, p.y, p.z, 1));
	}
}

// build a matrix from a transform.
//从一个变换构建一个矩阵
var matrix = Matrix4x4();

// Build a matrix from a transform.
//从一个变换构建一个矩阵
function Start () {
	matrix.SetColumn (0, transform.right);
	matrix.SetColumn (1, transform.up);
	matrix.SetColumn (2, transform.forward);
	var p = transform.position;
	matrix.SetColumn (3, Vector4 (p.x, p.y, p.z, 1));
}