fbxからExportするときにReduce Blendshape sizeをチェックするとvrmファイルが生成されない

[shiena]

バグについて

fbxからExportするときにReduce Blendshape sizeをチェックするとvrmファイルが生成されない。

再現方法

1. Kyleをインポートする
2. Kyleのアニメーションタイプをヒューマノイドに変更する
3. Robot Kyle.fbxをヒエラルキーに追加して選択する
4. メニューのVRM > UniVRM-0.54.0 > Export humanoidを選択する
5. Authorに適当に入力する
6. Reduce Blendshape sizeをチェックする
7. Exportボタンを押す

エラーログ

NullReferenceException: Object reference not set to an instance of an object
VRM.VRMExportSettings.Export (System.String path, System.Collections.Generic.List`1[T] destroy) (at Assets/VRM/UniVRM/Scripts/Format/VRMExportSettings.cs:299)
VRM.VRMExportSettings.Export (System.String path) (at Assets/VRM/UniVRM/Scripts/Format/VRMExportSettings.cs:258)
VRM.VRMExporterWizard.OnWizardCreate () (at Assets/VRM/UniVRM/Editor/Format/VRMExporterMenu.cs:42)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <437ba245d8404784b9fbab9b439ac908>:0)
UnityEditor.ScriptableWizard.OnGUI () (at <83a73882c51c4602b3d34743827d03e7>:0)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <437ba245d8404784b9fbab9b439ac908>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <437ba245d8404784b9fbab9b439ac908>:0)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at <83a73882c51c4602b3d34743827d03e7>:0)
UnityEditor.HostView.Invoke (System.String methodName) (at <83a73882c51c4602b3d34743827d03e7>:0)
UnityEditor.HostView.OldOnGUI () (at <83a73882c51c4602b3d34743827d03e7>:0)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Boolean canAffectFocus) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Boolean canAffectFocus) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.IMGUIContainer.HandleEvent (UnityEngine.UIElements.EventBase evt) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.CallbackEventHandler.HandleEventAtTargetPhase (UnityEngine.UIElements.EventBase evt) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.MouseCaptureDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEventQueue () (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.EventDispatcher.OpenGate () (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.EventDispatcherGate.Dispose () (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.UIElements.UIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <a24e7ce9cb384beb988b124973437b7f>:0)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at <59837000ebf54955a9cb1d31caa86097>:0)

期待する動作

VRMBlendShapeProxyがなくてもVRMファイルが生成されること

スクリーンショット

環境情報

• OS: Windows 10
• UniVRM version: 0.54.0
• Unity2019.3.0f3

追加の状況・背景

特になし

[hiroj]

Reduce Blendshape sizeオプションは、VRMに変換した後のBlendShapeClipを参照するため初回のfbx>VRMの変換でエラーになっていました。
そのためお手数ですが一度VRMに変換してからReduce Blendshape sizeオプションを利用して頂きますようお願いいたします。
エラーが出る件に関しては、fbx>VRMの変換時にはReduce Blendshape sizeオプションを選択出来ないようにするか、事前に警告を出すように次回の更新で修正致します。

[hiroj]

https://github.com/vrm-c/UniVRM/releases/tag/v0.55.0
Reduce Blendshape sizeオプション選択時にVRMBlendShapeProxyが無い場合は警告を出してExport出来ないように修正が入りました。

[shiena]

fbxやVRMBlendShapeProxyがないプレハブを選択してReduce Blendshape sizeをチェックするとVRM Exporterダイアログにエラーメッセージが表示されExportボタンを押せなくなりました。ご対応ありがとうございました。