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119 行
3.8 KiB
119 行
3.8 KiB
using System;
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using System.Linq;
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using System.Collections.Generic;
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using UnityEditor;
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using UnityEngine;
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public class MirrorTransformWindow : EditorWindow
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{
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private bool m_FlipX = true;
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private bool m_FlipY = false;
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private bool m_FlipZ = false;
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private float m_Distance = 0f;
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private Vector4 m_Plane = new Vector4(1f, 0f, 0f, 0f);
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[MenuItem("Animation Rigging/Mirror Transforms", false, 0)]
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static void ShowWindow()
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{
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MirrorTransformWindow window = EditorWindow.GetWindow<MirrorTransformWindow>();
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window.position = new Rect(Screen.width / 2, Screen.height / 2, 250, 150);
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window.ShowUtility();
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}
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public void OnGUI()
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{
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EditorGUIUtility.labelWidth = 75;
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EditorGUILayout.LabelField("Plane");
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if (EditorGUILayout.Toggle("X", m_FlipX, EditorStyles.radioButton))
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{
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m_FlipX = true;
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m_FlipY = m_FlipZ = false;
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}
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if (EditorGUILayout.Toggle("Y", m_FlipY, EditorStyles.radioButton))
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{
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m_FlipY = true;
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m_FlipX = m_FlipZ = false;
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}
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if (EditorGUILayout.Toggle("Z", m_FlipZ, EditorStyles.radioButton))
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{
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m_FlipZ = true;
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m_FlipX = m_FlipY = false;
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}
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m_Distance = EditorGUILayout.FloatField("Distance", m_Distance);
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GUILayout.Space(30);
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GUILayout.BeginHorizontal();
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if (GUILayout.Button("Apply"))
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Apply();
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if (GUILayout.Button("Close"))
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Close();
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GUILayout.EndHorizontal();
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}
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public void Apply()
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{
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Transform[] transforms = Selection.transforms;
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List<Transform> allTransforms = new List<Transform>(transforms.Length);
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foreach(var transform in transforms)
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{
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allTransforms.Add(transform);
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allTransforms.AddRange(transform.GetComponentsInChildren<Transform>(true));
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}
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Vector4 plane = new Vector4(m_FlipX ? 1f : 0f, m_FlipY ? 1f : 0f, m_FlipZ ? 1f : 0f, -m_Distance);
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float xMult = m_FlipX ? 1f : -1f;
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float yMult = m_FlipY ? 1f : -1f;
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float zMult = m_FlipZ ? 1f : -1f;
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Matrix4x4 matrix = CalculateReflectionMatrix(plane);
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List<Vector3> positions = new List<Vector3>(allTransforms.Select((transform) => transform.position));
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List<Vector3> eulerAngles = new List<Vector3>(allTransforms.Select((transform) => transform.eulerAngles));
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for (int i = 0; i < allTransforms.Count; ++i)
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{
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Transform transform = allTransforms[i];
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Vector3 position = positions[i];
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Vector3 angles = eulerAngles[i];
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Undo.RecordObject(transform, "Mirror transforms");
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transform.position = (matrix.MultiplyPoint(positions[i]));
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transform.eulerAngles = new Vector3(xMult * angles.x, yMult * angles.y, zMult * angles.z);
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}
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}
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// Calculates reflection matrix around the given plane
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private static Matrix4x4 CalculateReflectionMatrix (Vector4 plane)
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{
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var reflectionMat = Matrix4x4.zero;
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reflectionMat.m00 = (1F - 2F*plane[0]*plane[0]);
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reflectionMat.m01 = ( - 2F*plane[0]*plane[1]);
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reflectionMat.m02 = ( - 2F*plane[0]*plane[2]);
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reflectionMat.m03 = ( - 2F*plane[3]*plane[0]);
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reflectionMat.m10 = ( - 2F*plane[1]*plane[0]);
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reflectionMat.m11 = (1F - 2F*plane[1]*plane[1]);
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reflectionMat.m12 = ( - 2F*plane[1]*plane[2]);
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reflectionMat.m13 = ( - 2F*plane[3]*plane[1]);
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reflectionMat.m20 = ( - 2F*plane[2]*plane[0]);
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reflectionMat.m21 = ( - 2F*plane[2]*plane[1]);
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reflectionMat.m22 = (1F - 2F*plane[2]*plane[2]);
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reflectionMat.m23 = ( - 2F*plane[3]*plane[2]);
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reflectionMat.m30 = 0F;
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reflectionMat.m31 = 0F;
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reflectionMat.m32 = 0F;
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reflectionMat.m33 = 1F;
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return reflectionMat;
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}
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}
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