はじめに
VRMモデルを作っていて、FBXから作り直しが発生したとき
VRM Spring Boneのつけ直しって大変じゃありませんか？
1発でコピーできるツールを作りました
とりあえずツールだけほしい方
VRMモデルのSpringBoneをコピーするツール
こちらからダウンロードできます
使い方
1.メニューのVRM→Spring Bone Copyでメニューを開きます
2. 元GameObjectにSpringBoneの設定されているオブジェクトを
コピー先GameObjectにSpringBoneの設定されていないオブジェクトを指定します
3.コピーボタンを押すことでコピーが完了します
ソースコード
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using System.Linq;
using System.Reflection;
namespace VRM
{
public class VRMSpringBoneCopy : EditorWindow
{
[MenuItem("VRM/Spring Bone Copy")]
static void Open()
{
GetWindow<VRMSpringBoneCopy> ();
}
GameObject srcGo;
GameObject dstGo;
/// <summary>
/// OnGUI is called for rendering and handling GUI events.
/// This function can be called multiple times per frame (one call per event).
/// </summary>
void OnGUI()
{
EditorGUILayout.LabelField("元GameObject");
this.srcGo = EditorGUILayout.ObjectField(this.srcGo, typeof(GameObject), true) as GameObject;
EditorGUILayout.LabelField("コピー先GameObject");
this.dstGo = EditorGUILayout.ObjectField(this.dstGo, typeof(GameObject), true) as GameObject;
if(GUILayout.Button("コピー"))
{
copyComponents();
showResult();
}
}
Transform[] transformList;
List<string> colliderTargetError = new List<string>();
List<string> springTargetBone = new List<string>();
List<string> springBoneError = new List<string>();
void copyComponents()
{
this.colliderTargetError.Clear();
this.springTargetBone.Clear();
this.springBoneError.Clear();
deleteComponents();
this.transformList = this.dstGo.GetComponentsInChildren<Transform>();
var colliders = this.srcGo.GetComponentsInChildren<VRMSpringBoneColliderGroup>();
foreach(var c in colliders)
{
var targetTransform = this.transformList.FirstOrDefault(x => x.name == c.transform.name);
if(targetTransform != null)
{
var col = targetTransform.gameObject.AddComponent<VRMSpringBoneColliderGroup>();
col.Colliders = new VRMSpringBoneColliderGroup.SphereCollider[c.Colliders.Length];
copyField(c, col, "m_gizmoColor");
for(int i=0;i<col.Colliders.Length;i++)
{
col.Colliders[i] = new VRMSpringBoneColliderGroup.SphereCollider();
col.Colliders[i].Offset = c.Colliders[i].Offset;
col.Colliders[i].Radius = c.Colliders[i].Radius;
}
}
else
{
Debug.LogWarning("Not found VRMSpringBoneColliderGroup bone->"+c.gameObject.name);
this.colliderTargetError.Add(c.gameObject.name);
}
}
var springbone = this.srcGo.GetComponentsInChildren<VRMSpringBone>();
foreach(var c in springbone)
{
var targetTransform = this.transformList.FirstOrDefault(x => x.name == c.transform.name);
if(targetTransform != null)
{
var spring = targetTransform.gameObject.AddComponent<VRMSpringBone>();
spring.m_comment = c.m_comment;
copyField(c, spring, "m_drawGizmo");
copyField(c, spring, "m_gizmoColor");
spring.m_stiffnessForce = c.m_stiffnessForce;
spring.m_gravityPower = c.m_gravityPower;
spring.m_gravityDir = c.m_gravityDir;
spring.m_dragForce = c.m_dragForce;
spring.m_center = searchTranform(c.m_center);
foreach(var b in c.RootBones)
{
var bb = searchTranform(b);
if(bb != null)
{
spring.RootBones.Add(bb);
}
else
{
this.springTargetBone.Add(b.name);
}
}
spring.m_hitRadius = c.m_hitRadius;
if(c.ColliderGroups.Length > 0)
{
spring.ColliderGroups = new VRMSpringBoneColliderGroup[c.ColliderGroups.Length];
for(int i=0;i<spring.ColliderGroups.Length;i++)
{
var t = searchTranform(c.ColliderGroups[i].transform);
if(t != null)
{
spring.ColliderGroups[i] = t.GetComponent<VRMSpringBoneColliderGroup>();
}
else
{
Debug.LogWarning("Not found VRMSpringBoneColliderGroup ->"+c.ColliderGroups[i].transform.name);
this.springTargetBone.Add(c.ColliderGroups[i].transform.name);
}
}
}
}
else
{
Debug.LogWarning("Not found VRMSpringBone ->"+c.gameObject.name);
this.springBoneError.Add(c.gameObject.name);
}
}
}
void showResult()
{
if(this.colliderTargetError.Count == 0 &&
this.springTargetBone.Count == 0 &&
this.springBoneError.Count == 0)
{
EditorUtility.DisplayDialog("コピー完了", "正常にコピーが完了しました", "OK");
}
else
{
string message = "一部のコンポーネントのコピーができませんでした\n";
if(this.colliderTargetError.Count > 0)
{
message += "VRMSpringBoneColliderGroup のボーンが見つかりませんでした\n";
foreach(var e in this.colliderTargetError)
{
message += e+"\n";
}
}
if(this.springBoneError.Count > 0)
{
message += "VRMSpringBoneのアタッチ先が見つかりませんでした\n";
foreach(var e in this.springBoneError)
{
message += e+"\n";
}
}
if(this.springTargetBone.Count > 0)
{
message += "揺れ骨が見つかりませんでした\n";
foreach(var e in this.springTargetBone)
{
message += e+"\n";
}
}
EditorUtility.DisplayDialog("コピー完了", message, "OK");
}
}
Transform searchTranform(Transform t)
{
if(t == null)
{
return null;
}
var value = this.transformList.FirstOrDefault(x => x.name == t.name);
return value;
}
void deleteComponents()
{
var cols = this.dstGo.GetComponentsInChildren<VRMSpringBoneColliderGroup>();
foreach(var c in cols)
{
DestroyImmediate(c);
}
var springs = this.dstGo.GetComponentsInChildren<VRMSpringBone>();
foreach(var s in springs)
{
DestroyImmediate(s);
}
}
// private変数のコピー
void copyField(object src, object dst, string fieldName)
{
var srcField = src.GetType().GetField(fieldName,BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Instance | BindingFlags.Static |
BindingFlags.DeclaredOnly);
if(srcField == null)
{
Debug.LogWarning("srcField is null");
return;
}
var dstField = dst.GetType().GetField(fieldName,BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Instance | BindingFlags.Static |
BindingFlags.DeclaredOnly);
if(dstField == null)
{
Debug.LogWarning("dstField is null");
return;
}
dstField.SetValue(dst, srcField.GetValue(src));
}
}
}
解説
- やっていることは本当に簡単で、コピー元のVRM Spring BoneがアタッチされているTransform名を取得し、コピー先の一致するTransformにAddComponentしてパラメータをコピーしているだけです
this.transformList = this.dstGo.GetComponentsInChildren<Transform>();
これでコピー先のTransform一覧を取得
var springbone = this.srcGo.GetComponentsInChildren<VRMSpringBone>();
foreach(var c in springbone)
{
var targetTransform = this.transformList.FirstOrDefault(x => x.name == c.transform.name);
これでコピー元とTransform名が一致するコピー先のTransformを取得します
VRM Spring Boneは基本的にパラメータがpublicなのでそのままコピーできるのですが
SerializeFieldで表示しているパラメータはprivateになっているためコピーできません
そこで、リフレクションを使ってパラメータの取得と設定を行っています
// private変数のコピー
void copyField(object src, object dst, string fieldName)
{
var srcField = src.GetType().GetField(fieldName,BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Instance | BindingFlags.Static |
BindingFlags.DeclaredOnly);
if(srcField == null)
{
Debug.LogWarning("srcField is null");
return;
}
var dstField = dst.GetType().GetField(fieldName,BindingFlags.Public | BindingFlags.NonPublic |
BindingFlags.Instance | BindingFlags.Static |
BindingFlags.DeclaredOnly);
if(dstField == null)
{
Debug.LogWarning("dstField is null");
return;
}
dstField.SetValue(dst, srcField.GetValue(src));
}