ZMWSLI0-SL2021-GR11/cw1/unity_artifitial_world-st/Assets/Scripts/Misc/MatrixExtensions.cs

36 lines
1.1 KiB
C#
Raw Normal View History

2021-04-10 17:27:42 +02:00
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public static class MatrixExtensions {
public static Quaternion ExtractRotation(this Matrix4x4 matrix) {
Vector3 forward;
forward.x = matrix.m02;
forward.y = matrix.m12;
forward.z = matrix.m22;
Vector3 upwards;
upwards.x = matrix.m01;
upwards.y = matrix.m11;
upwards.z = matrix.m21;
return Quaternion.LookRotation(forward, upwards);
}
public static Vector3 ExtractPosition(this Matrix4x4 matrix) {
Vector3 position;
position.x = matrix.m03;
position.y = matrix.m13;
position.z = matrix.m23;
return position;
}
public static Vector3 ExtractScale(this Matrix4x4 matrix) {
Vector3 scale;
scale.x = new Vector4(matrix.m00, matrix.m10, matrix.m20, matrix.m30).magnitude;
scale.y = new Vector4(matrix.m01, matrix.m11, matrix.m21, matrix.m31).magnitude;
scale.z = new Vector4(matrix.m02, matrix.m12, matrix.m22, matrix.m32).magnitude;
return scale;
}
}