Example #1
0
        public static void OnInspectorGUI(UnityEngine.Object[] targets)
        {
            InitReflection();
            if (!localStyles)
            {
                popupStyle = new GUIStyle(EditorStyles.popup);
                //popupStyle.padding.top += 2;
                popupStyle.margin.top += 2;
                localStyles            = true;
            }


            bool updateMeshes = false;

            var models = new CSGModel[targets.Length];

            for (int i = targets.Length - 1; i >= 0; i--)
            {
                models[i] = targets[i] as CSGModel;
                if (!models[i])
                {
                    ArrayUtility.RemoveAt(ref models, i);
                }
            }

            if (models.Length == 0)
            {
                return;
            }


            var               settings                    = models[0].Settings;
            var               vertexChannels              = models[0].VertexChannels;
            ExportType?       exportType                  = models[0].exportType;
            bool?             VertexChannelColor          = (vertexChannels & VertexChannelFlags.Color) == VertexChannelFlags.Color;
            bool?             VertexChannelTangent        = (vertexChannels & VertexChannelFlags.Tangent) == VertexChannelFlags.Tangent;
            bool?             VertexChannelNormal         = (vertexChannels & VertexChannelFlags.Normal) == VertexChannelFlags.Normal;
            bool?             VertexChannelUV0            = (vertexChannels & VertexChannelFlags.UV0) == VertexChannelFlags.UV0;
            bool?             InvertedWorld               = (settings & ModelSettingsFlags.InvertedWorld) == ModelSettingsFlags.InvertedWorld;
            bool?             NoCollider                  = (settings & ModelSettingsFlags.NoCollider) == ModelSettingsFlags.NoCollider;
            bool?             IsTrigger                   = (settings & ModelSettingsFlags.IsTrigger) == ModelSettingsFlags.IsTrigger;
            bool?             SetToConvex                 = (settings & ModelSettingsFlags.SetColliderConvex) == ModelSettingsFlags.SetColliderConvex;
            bool?             AutoGenerateRigidBody       = (settings & ModelSettingsFlags.AutoUpdateRigidBody) == ModelSettingsFlags.AutoUpdateRigidBody;
            bool?             DoNotRender                 = (settings & ModelSettingsFlags.DoNotRender) == ModelSettingsFlags.DoNotRender;
            bool?             ReceiveShadows              = !((settings & ModelSettingsFlags.DoNotReceiveShadows) == ModelSettingsFlags.DoNotReceiveShadows);
            bool?             AutoRebuildUVs              = (settings & ModelSettingsFlags.AutoRebuildUVs) == ModelSettingsFlags.AutoRebuildUVs;
            bool?             PreserveUVs                 = (settings & ModelSettingsFlags.PreserveUVs) == ModelSettingsFlags.PreserveUVs;
            bool?             ShowGeneratedMeshes         = models[0].ShowGeneratedMeshes;
            ShadowCastingMode?ShadowCastingMode           = (ShadowCastingMode)(settings & ModelSettingsFlags.ShadowCastingModeFlags);
            var               defaultPhysicsMaterial      = models[0].DefaultPhysicsMaterial;
            var               defaultPhysicsMaterialMixed = false;

            for (int i = 1; i < models.Length; i++)
            {
                settings       = models[i].Settings;
                vertexChannels = models[i].VertexChannels;
                ExportType        currExportType             = models[i].exportType;
                bool              currVertexChannelColor     = (vertexChannels & VertexChannelFlags.Color) == VertexChannelFlags.Color;
                bool              currVertexChannelTangent   = (vertexChannels & VertexChannelFlags.Tangent) == VertexChannelFlags.Tangent;
                bool              currVertexChannelNormal    = (vertexChannels & VertexChannelFlags.Normal) == VertexChannelFlags.Normal;
                bool              currVertexChannelUV0       = (vertexChannels & VertexChannelFlags.UV0) == VertexChannelFlags.UV0;
                bool              currInvertedWorld          = (settings & ModelSettingsFlags.InvertedWorld) == ModelSettingsFlags.InvertedWorld;
                bool              currNoCollider             = (settings & ModelSettingsFlags.NoCollider) == ModelSettingsFlags.NoCollider;
                bool              currIsTrigger              = (settings & ModelSettingsFlags.IsTrigger) == ModelSettingsFlags.IsTrigger;
                bool              currSetToConvex            = (settings & ModelSettingsFlags.SetColliderConvex) == ModelSettingsFlags.SetColliderConvex;
                bool              currAutoGenerateRigidBody  = (settings & ModelSettingsFlags.AutoUpdateRigidBody) == ModelSettingsFlags.AutoUpdateRigidBody;
                bool              currDoNotRender            = (settings & ModelSettingsFlags.DoNotRender) == ModelSettingsFlags.DoNotRender;
                bool              currReceiveShadows         = !((settings & ModelSettingsFlags.DoNotReceiveShadows) == ModelSettingsFlags.DoNotReceiveShadows);
                bool              currAutoRebuildUVs         = (settings & ModelSettingsFlags.AutoRebuildUVs) == ModelSettingsFlags.AutoRebuildUVs;
                bool              currPreserveUVs            = (settings & ModelSettingsFlags.PreserveUVs) == ModelSettingsFlags.PreserveUVs;
                bool              currShowGeneratedMeshes    = models[i].ShowGeneratedMeshes;
                var               currdefaultPhysicsMaterial = models[i].DefaultPhysicsMaterial;
                ShadowCastingMode currShadowCastingMode      = (ShadowCastingMode)(settings & ModelSettingsFlags.ShadowCastingModeFlags);

                if (VertexChannelColor.HasValue && VertexChannelColor.Value != currVertexChannelColor)
                {
                    VertexChannelColor = null;
                }
                if (VertexChannelTangent.HasValue && VertexChannelTangent.Value != currVertexChannelTangent)
                {
                    VertexChannelTangent = null;
                }
                if (VertexChannelNormal.HasValue && VertexChannelNormal.Value != currVertexChannelNormal)
                {
                    VertexChannelNormal = null;
                }
                if (VertexChannelUV0.HasValue && VertexChannelUV0.Value != currVertexChannelUV0)
                {
                    VertexChannelUV0 = null;
                }

                if (exportType.HasValue && exportType.Value != currExportType)
                {
                    exportType = null;
                }

                if (InvertedWorld.HasValue && InvertedWorld.Value != currInvertedWorld)
                {
                    InvertedWorld = null;
                }
                if (NoCollider.HasValue && NoCollider.Value != currNoCollider)
                {
                    NoCollider = null;
                }
                if (IsTrigger.HasValue && IsTrigger.Value != currIsTrigger)
                {
                    IsTrigger = null;
                }
                if (SetToConvex.HasValue && SetToConvex.Value != currSetToConvex)
                {
                    SetToConvex = null;
                }
                if (AutoGenerateRigidBody.HasValue && AutoGenerateRigidBody.Value != currAutoGenerateRigidBody)
                {
                    AutoGenerateRigidBody = null;
                }
                if (DoNotRender.HasValue && DoNotRender.Value != currDoNotRender)
                {
                    DoNotRender = null;
                }
                if (ReceiveShadows.HasValue && ReceiveShadows.Value != currReceiveShadows)
                {
                    ReceiveShadows = null;
                }
                if (ShadowCastingMode.HasValue && ShadowCastingMode.Value != currShadowCastingMode)
                {
                    ShadowCastingMode = null;
                }
                if (AutoRebuildUVs.HasValue && AutoRebuildUVs.Value != currAutoRebuildUVs)
                {
                    AutoRebuildUVs = null;
                }
                if (PreserveUVs.HasValue && PreserveUVs.Value != currPreserveUVs)
                {
                    PreserveUVs = null;
                }
                if (ShowGeneratedMeshes.HasValue && ShowGeneratedMeshes.Value != currShowGeneratedMeshes)
                {
                    ShowGeneratedMeshes = null;
                }

                if (defaultPhysicsMaterial != currdefaultPhysicsMaterial)
                {
                    defaultPhysicsMaterialMixed = true;
                }
            }

            GUILayout.BeginVertical(GUI.skin.box);
            {
                EditorGUILayout.LabelField("Behaviour");
                EditorGUI.indentLevel++;
                {
                    bool inverted_world = InvertedWorld.HasValue ? InvertedWorld.Value : false;
                    EditorGUI.BeginChangeCheck();
                    {
                        EditorGUI.showMixedValue = !InvertedWorld.HasValue;
                        inverted_world           = EditorGUILayout.Toggle(InvertedWorldContent, inverted_world);
                    }
                    if (EditorGUI.EndChangeCheck())
                    {
                        for (int i = 0; i < models.Length; i++)
                        {
                            if (inverted_world)
                            {
                                models[i].Settings |= ModelSettingsFlags.InvertedWorld;
                            }
                            else
                            {
                                models[i].Settings &= ~ModelSettingsFlags.InvertedWorld;
                            }
                        }
                        GUI.changed   = true;
                        InvertedWorld = inverted_world;
                    }
                }
                EditorGUI.indentLevel--;
            }
            GUILayout.EndVertical();
            if (models != null && models.Length == 1)
            {
                GUILayout.Space(10);
                GUILayout.BeginVertical(GUI.skin.box);
                {
                    EditorGUILayout.LabelField("Export");
                    GUILayout.BeginHorizontal();
                    {
                        EditorGUI.BeginDisabledGroup(!exportType.HasValue);
                        {
                            if (GUILayout.Button("Export to ...") && exportType.HasValue)
                            {
#if !DEMO
                                MeshInstanceManager.Export(models[0], exportType.Value);
#else
                                Debug.LogWarning("Export is disabled in demo version");
#endif
                            }
                        }
                        EditorGUI.EndDisabledGroup();
                        EditorGUI.BeginChangeCheck();
                        {
                            EditorGUI.showMixedValue = !exportType.HasValue;
                            exportType = (ExportType)EditorGUILayout.EnumPopup(exportType ?? ExportType.FBX, popupStyle);
                            EditorGUI.showMixedValue = false;
                        }
                        if (EditorGUI.EndChangeCheck() && exportType.HasValue)
                        {
                            for (int i = 0; i < models.Length; i++)
                            {
                                models[i].exportType = exportType.Value;
                            }
                        }
                    }
                    GUILayout.EndHorizontal();
                }
                GUILayout.EndVertical();
            }
            GUILayout.Space(10);
            GUILayout.BeginVertical(GUI.skin.box);
            {
                EditorGUILayout.LabelField("Physics");
                EditorGUI.indentLevel++;
                {
                    bool collider_value = NoCollider.HasValue ? NoCollider.Value : false;
                    EditorGUI.BeginChangeCheck();
                    {
                        EditorGUI.showMixedValue = !NoCollider.HasValue;
                        collider_value           = !EditorGUILayout.Toggle(GenerateColliderContent, !collider_value);
                    }
                    if (EditorGUI.EndChangeCheck())
                    {
                        for (int i = 0; i < models.Length; i++)
                        {
                            if (collider_value)
                            {
                                models[i].Settings |= ModelSettingsFlags.NoCollider;
                            }
                            else
                            {
                                models[i].Settings &= ~ModelSettingsFlags.NoCollider;
                            }
                        }
                        GUI.changed  = true;
                        NoCollider   = collider_value;
                        updateMeshes = true;
                    }
                }
                var have_no_collider = NoCollider.HasValue && NoCollider.Value;
                EditorGUI.BeginDisabledGroup(have_no_collider);
                {
                    bool trigger_value_mixed = have_no_collider ? true : !IsTrigger.HasValue;
                    bool trigger_value       = IsTrigger.HasValue ? IsTrigger.Value : false;
                    {
                        EditorGUI.BeginChangeCheck();
                        {
                            EditorGUI.showMixedValue = trigger_value_mixed;
                            trigger_value            = EditorGUILayout.Toggle(ModelIsTriggerContent, trigger_value);
                        }
                        if (EditorGUI.EndChangeCheck())
                        {
                            for (int i = 0; i < models.Length; i++)
                            {
                                if (trigger_value)
                                {
                                    models[i].Settings |= ModelSettingsFlags.IsTrigger;
                                }
                                else
                                {
                                    models[i].Settings &= ~ModelSettingsFlags.IsTrigger;
                                }
                            }
                            GUI.changed  = true;
                            IsTrigger    = trigger_value;
                            updateMeshes = true;
                        }
                    }
                    bool set_convex_value_mixed = have_no_collider ? true : !SetToConvex.HasValue;
                    bool set_convex_value       = have_no_collider ? false : (SetToConvex.HasValue ? SetToConvex.Value : false);
                    {
                        EditorGUI.BeginChangeCheck();
                        {
                            EditorGUI.showMixedValue = set_convex_value_mixed;
                            var prevColor = GUI.color;
                            if (!set_convex_value && trigger_value)
                            {
                                var color = new Color(1, 0.25f, 0.25f);
                                GUI.color = color;
                            }
                            set_convex_value = EditorGUILayout.Toggle(ColliderSetToConvexContent, set_convex_value);
                            GUI.color        = prevColor;
                        }
                        if (EditorGUI.EndChangeCheck())
                        {
                            for (int i = 0; i < models.Length; i++)
                            {
                                if (set_convex_value)
                                {
                                    models[i].Settings |= ModelSettingsFlags.SetColliderConvex;
                                }
                                else
                                {
                                    models[i].Settings &= ~ModelSettingsFlags.SetColliderConvex;
                                }
                            }
                            GUI.changed  = true;
                            SetToConvex  = set_convex_value;
                            updateMeshes = true;
                        }
                    }
                    {
                        EditorGUI.BeginChangeCheck();
                        {
                            EditorGUI.showMixedValue = defaultPhysicsMaterialMixed;
                            GUILayout.BeginHorizontal();
                            EditorGUILayout.PrefixLabel(DefaultPhysicsMaterialContent);
                            defaultPhysicsMaterial = EditorGUILayout.ObjectField(defaultPhysicsMaterial, typeof(PhysicMaterial), true) as PhysicMaterial;
                            GUILayout.EndHorizontal();
                        }
                        if (EditorGUI.EndChangeCheck())
                        {
                            for (int i = 0; i < models.Length; i++)
                            {
                                models[i].DefaultPhysicsMaterial = defaultPhysicsMaterial;
                            }
                            GUI.changed = true;
                            //MeshInstanceManager.Clear();
                            updateMeshes = true;
                        }
                    }
                    if (!have_no_collider && !set_convex_value && trigger_value)
                    {
                        var prevColor = GUI.color;
                        var color     = new Color(1, 0.25f, 0.25f);
                        GUI.color = color;
                        GUILayout.Label("Warning:\r\nFor performance reasons colliders need to\r\nbe convex!");

                        GUI.color = prevColor;
                    }
                }
                EditorGUI.EndDisabledGroup();
                {
                    bool autoRigidbody = (AutoGenerateRigidBody.HasValue ? AutoGenerateRigidBody.Value : false);
                    EditorGUI.BeginChangeCheck();
                    {
                        EditorGUI.showMixedValue = !AutoGenerateRigidBody.HasValue;
                        autoRigidbody            = !EditorGUILayout.Toggle(ColliderAutoRigidBodyContent, !autoRigidbody);
                    }
                    if (EditorGUI.EndChangeCheck())
                    {
                        for (int i = 0; i < models.Length; i++)
                        {
                            if (autoRigidbody)
                            {
                                models[i].Settings |= ModelSettingsFlags.AutoUpdateRigidBody;
                            }
                            else
                            {
                                models[i].Settings &= ~ModelSettingsFlags.AutoUpdateRigidBody;
                            }
                        }
                        GUI.changed           = true;
                        AutoGenerateRigidBody = autoRigidbody;
                    }
                }
                EditorGUI.indentLevel--;
            }
            GUILayout.EndVertical();
            GUILayout.Space(10);
            GUILayout.BeginVertical(GUI.skin.box);
            {
                ShadowCastingMode shadowcastingValue = ShadowCastingMode.HasValue ? ShadowCastingMode.Value : UnityEngine.Rendering.ShadowCastingMode.On;
                var castOnlyShadow = (shadowcastingValue == UnityEngine.Rendering.ShadowCastingMode.ShadowsOnly);
                EditorGUILayout.LabelField("Rendering");
                EditorGUI.indentLevel++;
                EditorGUI.BeginDisabledGroup(castOnlyShadow);
                {
                    bool donotrender_value = castOnlyShadow ? true : (DoNotRender.HasValue ? DoNotRender.Value : false);
                    EditorGUI.BeginChangeCheck();
                    {
                        EditorGUI.showMixedValue = castOnlyShadow ? true : !DoNotRender.HasValue;
                        donotrender_value        = EditorGUILayout.Toggle(DoNotRenderContent, donotrender_value);
                    }
                    if (EditorGUI.EndChangeCheck())
                    {
                        for (int i = 0; i < models.Length; i++)
                        {
                            if (donotrender_value)
                            {
                                models[i].Settings |= ModelSettingsFlags.DoNotRender;
                            }
                            else
                            {
                                models[i].Settings &= ~ModelSettingsFlags.DoNotRender;
                            }
                        }
                        GUI.changed  = true;
                        DoNotRender  = donotrender_value;
                        updateMeshes = true;
                    }
                }
                EditorGUI.EndDisabledGroup();
                GUILayout.Space(10);
                EditorGUI.BeginDisabledGroup(DoNotRender.HasValue && DoNotRender.Value);
                {
                    EditorGUI.BeginChangeCheck();
                    {
                        EditorGUI.showMixedValue = !ShadowCastingMode.HasValue;
                        shadowcastingValue       = (ShadowCastingMode)EditorGUILayout.EnumPopup(CastShadows, shadowcastingValue);
                    }
                    if (EditorGUI.EndChangeCheck())
                    {
                        for (int i = 0; i < models.Length; i++)
                        {
                            settings           = models[i].Settings;
                            settings          &= ~ModelSettingsFlags.ShadowCastingModeFlags;
                            settings          |= (ModelSettingsFlags)(((int)shadowcastingValue) & (int)ModelSettingsFlags.ShadowCastingModeFlags);
                            models[i].Settings = settings;
                        }
                        GUI.changed       = true;
                        ShadowCastingMode = shadowcastingValue;
                        updateMeshes      = true;
                    }

                    var isUsingDeferredRenderingPath = false;                    //IsUsingDeferredRenderingPath();
                    EditorGUI.BeginDisabledGroup(castOnlyShadow || isUsingDeferredRenderingPath);
                    {
                        var receiveshadowsValue = !castOnlyShadow && (isUsingDeferredRenderingPath || (ReceiveShadows ?? false));
                        EditorGUI.BeginChangeCheck();
                        {
                            EditorGUI.showMixedValue = (castOnlyShadow || !ReceiveShadows.HasValue) && !isUsingDeferredRenderingPath;
                            receiveshadowsValue      = EditorGUILayout.Toggle(ModelInspectorGUI.ReceiveShadowsContent, receiveshadowsValue || isUsingDeferredRenderingPath);
                        }
                        if (EditorGUI.EndChangeCheck())
                        {
                            for (int i = 0; i < models.Length; i++)
                            {
                                if (receiveshadowsValue)
                                {
                                    models[i].Settings &= ~ModelSettingsFlags.DoNotReceiveShadows;
                                }
                                else
                                {
                                    models[i].Settings |= ModelSettingsFlags.DoNotReceiveShadows;
                                }
                            }
                            GUI.changed    = true;
                            ReceiveShadows = receiveshadowsValue;
                        }
                    }
                    EditorGUI.EndDisabledGroup();
                }
                EditorGUI.EndDisabledGroup();

                EditorGUI.BeginDisabledGroup(castOnlyShadow);
                EditorGUI.showMixedValue = false;
                UpdateTargets(models);
                if (_probesInstance != null &&
                    _probesOnGUIMethod != null &&
                    _probesTargets != null &&
                    _probesInitialized)
                {
                    GUILayout.Space(10);
                    try
                    {
#if UNITY_5_6_OR_NEWER
                        _probesSerializedObject.UpdateIfRequiredOrScript();
#else
                        _probesSerializedObject.UpdateIfDirtyOrScript();
#endif
                        _probesOnGUIMethod.Invoke(_probesInstance, new System.Object[] { _probesTargets, (Renderer)_probesTargets[0], false });
                        _probesSerializedObject.ApplyModifiedProperties();
                    }
                    catch { }
                }
                EditorGUI.EndDisabledGroup();
                EditorGUI.indentLevel--;
            }
            GUILayout.EndVertical();
            GUILayout.Space(10);
            GUILayout.BeginVertical(GUI.skin.box);
            {
                EditorGUILayout.LabelField("Lighting");
                EditorGUI.indentLevel++;
                {
                    EditorGUI.indentLevel++;
                    CommonGUI.GenerateLightmapUVButton(models);
                    EditorGUI.indentLevel--;

                    EditorGUILayout.LabelField("UV Settings");
                    EditorGUI.indentLevel++;
                    {
                        var autoRebuildUvs = AutoRebuildUVs ?? false;
                        EditorGUI.BeginChangeCheck();
                        {
                            EditorGUI.showMixedValue = !AutoRebuildUVs.HasValue;
                            autoRebuildUvs           = EditorGUILayout.Toggle(AutoRebuildUVsContent, autoRebuildUvs);
                        }
                        if (EditorGUI.EndChangeCheck())
                        {
                            for (int i = 0; i < models.Length; i++)
                            {
                                if (autoRebuildUvs)
                                {
                                    models[i].Settings |= ModelSettingsFlags.AutoRebuildUVs;
                                }
                                else
                                {
                                    models[i].Settings &= ~ModelSettingsFlags.AutoRebuildUVs;
                                }
                            }
                            GUI.changed    = true;
                            AutoRebuildUVs = autoRebuildUvs;
                            updateMeshes   = true;
                        }
                    }
                    {
                        var preserveUVs = PreserveUVs ?? false;
                        EditorGUI.BeginChangeCheck();
                        {
                            EditorGUI.showMixedValue = !PreserveUVs.HasValue;
                            preserveUVs = EditorGUILayout.Toggle(PreserveUVsContent, preserveUVs);
                        }
                        if (EditorGUI.EndChangeCheck())
                        {
                            for (int i = 0; i < models.Length; i++)
                            {
                                if (preserveUVs)
                                {
                                    models[i].Settings |= ModelSettingsFlags.PreserveUVs;
                                }
                                else
                                {
                                    models[i].Settings &= ~ModelSettingsFlags.PreserveUVs;
                                }
                            }
                            GUI.changed  = true;
                            PreserveUVs  = preserveUVs;
                            updateMeshes = true;
                        }
                    }
                    EditorGUI.indentLevel--;
                }
                EditorGUI.indentLevel--;
            }
            GUILayout.EndVertical();
            GUILayout.Space(10);
            GUILayout.BeginVertical(GUI.skin.box);
            {
                EditorGUILayout.LabelField("Mesh (advanced)");
                EditorGUI.indentLevel++;
                {
                    var showGeneratedMeshes = ShowGeneratedMeshes ?? false;
                    EditorGUI.BeginChangeCheck();
                    {
                        EditorGUI.showMixedValue = !ShowGeneratedMeshes.HasValue;
                        showGeneratedMeshes      = EditorGUILayout.Toggle(ShowGeneratedMeshesContent, showGeneratedMeshes);
                    }
                    if (EditorGUI.EndChangeCheck())
                    {
                        for (int i = 0; i < models.Length; i++)
                        {
                            models[i].ShowGeneratedMeshes = showGeneratedMeshes;
                            MeshInstanceManager.UpdateGeneratedMeshesVisibility(models[i]);
                        }
                    }
                    GUILayout.Space(10);

                    EditorGUILayout.LabelField("Used Vertex Channels");
                    EditorGUI.indentLevel++;
                    {
                        var vertex_channel_color   = VertexChannelColor ?? false;
                        var vertex_channel_tangent = VertexChannelTangent ?? false;
                        var vertex_channel_normal  = VertexChannelNormal ?? false;
                        var vertex_channel_UV0     = VertexChannelUV0 ?? false;
                        EditorGUI.BeginChangeCheck();
                        {
                            EditorGUI.showMixedValue = !VertexChannelColor.HasValue;
                            vertex_channel_color     = EditorGUILayout.Toggle(VertexChannelColorContent, vertex_channel_color);

                            EditorGUI.showMixedValue = !VertexChannelTangent.HasValue;
                            vertex_channel_tangent   = EditorGUILayout.Toggle(VertexChannelTangentContent, vertex_channel_tangent);

                            EditorGUI.showMixedValue = !VertexChannelNormal.HasValue;
                            vertex_channel_normal    = EditorGUILayout.Toggle(VertexChannelNormalContent, vertex_channel_normal);

                            EditorGUI.showMixedValue = !VertexChannelUV0.HasValue;
                            vertex_channel_UV0       = EditorGUILayout.Toggle(VertexChannelUV1Content, vertex_channel_UV0);
                        }
                        if (EditorGUI.EndChangeCheck())
                        {
                            for (int i = 0; i < models.Length; i++)
                            {
                                var vertexChannel = models[i].VertexChannels;
                                vertexChannel &= ~(VertexChannelFlags.Color |
                                                   VertexChannelFlags.Tangent |
                                                   VertexChannelFlags.Normal |
                                                   VertexChannelFlags.UV0);

                                if (vertex_channel_color)
                                {
                                    vertexChannel |= VertexChannelFlags.Color;
                                }
                                if (vertex_channel_tangent)
                                {
                                    vertexChannel |= VertexChannelFlags.Tangent;
                                }
                                if (vertex_channel_normal)
                                {
                                    vertexChannel |= VertexChannelFlags.Normal;
                                }
                                if (vertex_channel_UV0)
                                {
                                    vertexChannel |= VertexChannelFlags.UV0;
                                }
                                models[i].VertexChannels = vertexChannel;
                            }
                            GUI.changed = true;
                        }
                    }
                    EditorGUI.indentLevel--;
                }
                EditorGUI.indentLevel--;
            }
            GUILayout.EndVertical();
            if (models != null && models.Length == 1)
            {
                GUILayout.Space(10);

                GUILayout.BeginVertical(GUI.skin.box);
                _showDetails = EditorGUILayout.BeginToggleGroup("Statistics", _showDetails);
                if (_showDetails)
                {
                    var model_cache = InternalCSGModelManager.GetModelCache(models[0]);
                    if (model_cache == null ||
                        model_cache.GeneratedMeshes == null ||
                        !model_cache.GeneratedMeshes)
                    {
                        GUILayout.Label("Could not find model cache for this model.");
                    }
                    else
                    {
                        var meshContainer = model_cache.GeneratedMeshes;


                        var totalTriangles = 0;
                        var totalVertices  = 0;
                        var totalMeshes    = 0;

                        var materialMeshes = new Dictionary <Material, List <MeshData> >();
                        foreach (var instance in meshContainer.meshInstances.Values)
                        {
                            var mesh = instance.SharedMesh;
                            if (!MeshInstanceManager.HasVisibleMeshRenderer(instance))
                            {
                                continue;
                            }

                            List <MeshData> meshes;
                            if (!materialMeshes.TryGetValue(instance.RenderMaterial, out meshes))
                            {
                                meshes = new List <MeshData>();
                                materialMeshes[instance.RenderMaterial] = meshes;
                            }

                            var meshData = new MeshData();
                            meshData.Mesh          = mesh;
                            meshData.VertexCount   = mesh.vertexCount;
                            meshData.TriangleCount = mesh.triangles.Length / 3;
                            meshes.Add(meshData);

                            totalVertices += meshData.VertexCount;
                            totalTriangles = meshData.TriangleCount;
                            totalMeshes++;
                        }
                        EditorGUI.indentLevel++;
                        EditorGUILayout.Space();
                        EditorGUILayout.LabelField("total:");
                        EditorGUILayout.LabelField("vertices: " + totalVertices + "  triangles: " + totalTriangles + "  materials: " + materialMeshes.Count + "  meshes: " + totalMeshes);
                        GUILayout.Space(10);
                        EditorGUILayout.LabelField("meshes:");
                        foreach (var item in materialMeshes)
                        {
                            var material = item.Key;
                            var meshes   = item.Value;

                            GUILayout.BeginHorizontal();
                            {
                                EditorGUI.BeginDisabledGroup(true);
                                {
                                    EditorGUILayout.ObjectField(material, typeof(Material), true);
                                }
                                GUILayout.BeginVertical();
                                {
                                    if (meshes.Count == 1)
                                    {
                                        EditorGUILayout.ObjectField(meshes[0].Mesh, typeof(Mesh), true);
                                        EditorGUILayout.LabelField("vertices " + meshes[0].VertexCount + "  triangles " + meshes[0].TriangleCount);
                                    }
                                    else
                                    {
                                        for (int i = 0; i < meshes.Count; i++)
                                        {
                                            EditorGUILayout.ObjectField(meshes[i].Mesh, typeof(Mesh), true);
                                            EditorGUILayout.LabelField("vertices " + meshes[i].VertexCount + "  triangles " + meshes[i].TriangleCount);
                                        }
                                    }
                                }
                                GUILayout.EndVertical();
                                EditorGUI.EndDisabledGroup();
                            }
                            GUILayout.EndHorizontal();
                            EditorGUILayout.Space();
                        }
                        EditorGUI.indentLevel--;
                    }
                }
                EditorGUILayout.EndToggleGroup();
                GUILayout.EndVertical();
            }
            EditorGUI.showMixedValue = false;
            if (updateMeshes)
            {
                InternalCSGModelManager.DoForcedMeshUpdate();
                SceneViewEventHandler.ResetUpdateRoutine();
            }
        }