feat: prune empty layers (#579)

Closes: #554

.github/ProjectRoot/vpm-manifest-2019.json

@@ -4,7 +4,7 @@
       "version": "3.4.2"
     },
     "nadena.dev.ndmf": {
-      "version": "1.3.0-alpha.1"
+      "version": "1.3.0-alpha.2"
     }
   },
   "locked": {
@@ -19,7 +19,7 @@
       "dependencies": {}
     },
     "nadena.dev.ndmf": {
-      "version": "1.3.0-alpha.1"
+      "version": "1.3.0-alpha.2"
     }
   }
 }

.github/ProjectRoot/vpm-manifest-2022.json

@@ -4,7 +4,7 @@
       "version": "3.5.0"
     },
     "nadena.dev.ndmf": {
-      "version": "1.3.0-alpha.1"
+      "version": "1.3.0-alpha.2"
     }
   },
   "locked": {
@@ -19,7 +19,7 @@
       "dependencies": {}
     },
     "nadena.dev.ndmf": {
-      "version": "1.3.0-alpha.1"
+      "version": "1.3.0-alpha.2"
     }
   }
 }

Editor/AnimatorMerger.cs

@@ -27,9 +27,11 @@ using System.Collections.Generic;
 using System.Linq;
 using nadena.dev.modular_avatar.animation;
 using nadena.dev.modular_avatar.editor.ErrorReporting;
+using nadena.dev.ndmf.util;
 using UnityEditor;
 using UnityEditor.Animations;
 using UnityEngine;
+using VRC.SDKBase;
 
 #if MA_VRCSDK3_AVATARS
 using VRC.SDK3.Avatars.Components;
@@ -63,6 +65,8 @@ namespace nadena.dev.modular_avatar.core.editor
 
         private int controllerBaseLayer = 0;
 
+        public VRC_AnimatorLayerControl.BlendableLayer? BlendableLayer;
+
         public AnimatorCombiner(BuildContext context, String assetName)
         {
             _combined = context.CreateAnimator();
@@ -74,12 +78,94 @@ namespace nadena.dev.modular_avatar.core.editor
 
         public AnimatorController Finish()
         {
+            PruneEmptyLayers();
+
             _combined.parameters = _parameters.Values.ToArray();
             _combined.layers = _layers.ToArray();
             return _combined;
         }
 
-        public void AddController(string basePath, AnimatorController controller, bool? writeDefaults, bool forceFirstLayerWeight = false)
+        private void PruneEmptyLayers()
+        {
+            var originalLayers = _layers;
+            int[] layerIndexMappings = new int[originalLayers.Count];
+
+            List<AnimatorControllerLayer> newLayers = new List<AnimatorControllerLayer>();
+
+            for (int i = 0; i < originalLayers.Count; i++)
+            {
+                if (i > 0 && IsEmptyLayer(originalLayers[i]))
+                {
+                    layerIndexMappings[i] = -1;
+                }
+                else
+                {
+                    layerIndexMappings[i] = newLayers.Count;
+                    newLayers.Add(originalLayers[i]);
+                }
+            }
+
+            foreach (var layer in newLayers)
+            {
+                if (layer.stateMachine == null) continue;
+
+                foreach (var asset in layer.stateMachine.ReferencedAssets(includeScene: false))
+                {
+                    if (asset is AnimatorState alc)
+                    {
+                        alc.behaviours = AdjustStateBehaviors(alc.behaviours);
+                    }
+                    else if (asset is AnimatorStateMachine asm)
+                    {
+                        asm.behaviours = AdjustStateBehaviors(asm.behaviours);
+                    }
+                }
+            }
+
+            _layers = newLayers;
+
+            StateMachineBehaviour[] AdjustStateBehaviors(StateMachineBehaviour[] behaviours)
+            {
+                if (behaviours.Length == 0) return behaviours;
+
+                var newBehaviors = new List<StateMachineBehaviour>();
+                foreach (var b in behaviours)
+                {
+                    if (b is VRCAnimatorLayerControl alc && alc.playable == BlendableLayer)
+                    {
+                        int newLayer = -1;
+                        if (alc.layer >= 0 && alc.layer < layerIndexMappings.Length)
+                        {
+                            newLayer = layerIndexMappings[alc.layer];
+                        }
+
+                        if (newLayer != -1)
+                        {
+                            alc.layer = newLayer;
+                            newBehaviors.Add(alc);
+                        }
+                    }
+                    else
+                    {
+                        newBehaviors.Add(b);
+                    }
+                }
+
+                return newBehaviors.ToArray();
+            }
+        }
+
+        private bool IsEmptyLayer(AnimatorControllerLayer layer)
+        {
+            if (layer.syncedLayerIndex >= 0) return false;
+            if (layer.avatarMask != null) return false;
+
+            return layer.stateMachine == null
+                   || (layer.stateMachine.states.Length == 0 && layer.stateMachine.stateMachines.Length == 0);
+        }
+
+        public void AddController(string basePath, AnimatorController controller, bool? writeDefaults,
+            bool forceFirstLayerWeight = false)
         {
             controllerBaseLayer = _layers.Count;
             _cloneMap = new Dictionary<Object, Object>();

Editor/MergeAnimatorProcessor.cs

@@ -24,6 +24,7 @@
 
 #if MA_VRCSDK3_AVATARS
 
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using nadena.dev.modular_avatar.editor.ErrorReporting;
@@ -31,6 +32,7 @@ using UnityEditor;
 using UnityEditor.Animations;
 using UnityEngine;
 using VRC.SDK3.Avatars.Components;
+using VRC.SDKBase;
 using Object = UnityEngine.Object;
 
 namespace nadena.dev.modular_avatar.core.editor
@@ -108,13 +110,15 @@ namespace nadena.dev.modular_avatar.core.editor
 
             var session = new AnimatorCombiner(context, layerType.ToString() + " (merged)");
             mergeSessions[layerType] = session;
+            mergeSessions[layerType].BlendableLayer = BlendableLayerFor(layerType);
 
             foreach (var component in beforeOriginal)
             {
                 MergeSingle(context, session, component);
             }
 
-            if (defaultControllers_.TryGetValue(layerType, out var defaultController) && defaultController.layers.Length > 0)
+            if (defaultControllers_.TryGetValue(layerType, out var defaultController) &&
+                defaultController.layers.Length > 0)
             {
                 session.AddController("", defaultController, null, forceFirstLayerWeight: true);
             }
@@ -191,11 +195,24 @@ namespace nadena.dev.modular_avatar.core.editor
                     // For non-default layers, ensure we always clone the controller for the benefit of subsequent
                     // processing phases
                     mergeSessions[layer.type] = new AnimatorCombiner(_context, layer.type.ToString());
+                    mergeSessions[layer.type].BlendableLayer = BlendableLayerFor(layer.type);
                     mergeSessions[layer.type].AddController("", controller, null);
                 }
             }
         }
 
+        private VRC_AnimatorLayerControl.BlendableLayer? BlendableLayerFor(VRCAvatarDescriptor.AnimLayerType layerType)
+        {
+            if (Enum.TryParse(layerType.ToString(), out VRC_AnimatorLayerControl.BlendableLayer result))
+            {
+                return result;
+            }
+            else
+            {
+                return null;
+            }
+        }
+
         private bool? ProbeWriteDefaults(AnimatorController controller)
         {
             bool hasWDOn = false;

UnitTests~/Animation/LayerPruningTest.cs

@@ -0,0 +1,40 @@
+using System.Collections;
+using System.Collections.Generic;
+using modular_avatar_tests;
+using nadena.dev.modular_avatar.core.editor;
+using NUnit.Framework;
+using UnityEditor.Animations;
+using UnityEngine;
+using VRC.SDK3.Avatars.Components;
+
+namespace modular_avatar_tests
+{
+    public class LayerPruningTest : TestBase
+    {
+        [Test]
+        public void Test()
+        {
+            var prefab = CreatePrefab("LayerPruningTest.prefab");
+            AvatarProcessor.ProcessAvatar(prefab);
+            
+            var fxController = (AnimatorController) FindFxController(prefab).animatorController;
+            var l0 = fxController.layers[0];
+            var l1 = fxController.layers[1];
+            var l2 = fxController.layers[2];
+            var l3 = fxController.layers[3];
+            var l3a = fxController.layers[4];
+
+            Assert.AreEqual("Base Layer", l0.name);
+            Assert.AreEqual("L1", l1.name);
+            Assert.AreEqual("L2", l2.name);
+            Assert.AreEqual("L3", l3.name);
+            Assert.AreEqual("L3.a", l3a.name);
+
+            Assert.AreEqual(2, l3.stateMachine.defaultState.behaviours.Length);
+            Assert.AreEqual(4, ((VRCAnimatorLayerControl)l3.stateMachine.defaultState.behaviours[0]).layer);
+            
+            Assert.AreEqual(1, l3a.stateMachine.defaultState.behaviours.Length);
+            Assert.AreEqual(3, ((VRCAnimatorLayerControl)l3a.stateMachine.defaultState.behaviours[0]).layer);
+        }
+    }
+}

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@@ -0,0 +1,11 @@
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+  trackingMouth: 0
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+  m_Name: 
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+  blendDuration: 0
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+--- !u!1107 &5672149797109502553
+AnimatorStateMachine:
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+  m_ObjectHideFlags: 1
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+  m_PrefabInstance: {fileID: 0}
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+  m_Name: Base Layer
+  m_ChildStates: []
+  m_ChildStateMachines: []
+  m_AnyStateTransitions: []
+  m_EntryTransitions: []
+  m_StateMachineTransitions: {}
+  m_StateMachineBehaviours: []
+  m_AnyStatePosition: {x: 50, y: 20, z: 0}
+  m_EntryPosition: {x: 50, y: 120, z: 0}
+  m_ExitPosition: {x: 800, y: 120, z: 0}
+  m_ParentStateMachinePosition: {x: 800, y: 20, z: 0}
+  m_DefaultState: {fileID: 0}
+--- !u!1102 &7630388764650502246
+AnimatorState:
+  serializedVersion: 6
+  m_ObjectHideFlags: 1
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: A3
+  m_Speed: 1
+  m_CycleOffset: 0
+  m_Transitions: []
+  m_StateMachineBehaviours:
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+  m_Position: {x: 50, y: 50, z: 0}
+  m_IKOnFeet: 0
+  m_WriteDefaultValues: 1
+  m_Mirror: 0
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+  m_Tag: 
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UnitTests~/Animation/LayerPruningTest/AC3.controller.meta

@@ -0,0 +1,8 @@
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+guid: 53e7e11e88a37e74da7e4f976e83e3bc
+NativeFormatImporter:
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+  userData: 
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UnitTests~/BlendshapeSyncTests/BlendshapeSyncIntegrationTest.prefab

@@ -26,19 +26,18 @@ Transform:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 3825275463613500755}
-  serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0.023681391, y: 1.0559628, z: -0.6872994}
   m_LocalScale: {x: 1, y: 1, z: 1}
-  m_ConstrainProportionsScale: 0
   m_Children:
   - {fileID: 3646968714803193661}
   - {fileID: 3646968713996568948}
   m_Father: {fileID: 0}
+  m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!95 &3825275463613500750
 Animator:
-  serializedVersion: 5
+  serializedVersion: 3
   m_ObjectHideFlags: 0
   m_CorrespondingSourceObject: {fileID: 0}
   m_PrefabInstance: {fileID: 0}
@@ -51,12 +50,10 @@ Animator:
   m_UpdateMode: 0
   m_ApplyRootMotion: 0
   m_LinearVelocityBlending: 0
-  m_StabilizeFeet: 0
   m_WarningMessage: 
   m_HasTransformHierarchy: 1
   m_AllowConstantClipSamplingOptimization: 1
-  m_KeepAnimatorStateOnDisable: 0
+  m_KeepAnimatorControllerStateOnDisable: 0
-  m_WriteDefaultValuesOnDisable: 0
 --- !u!114 &3825275463613500753
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -325,12 +322,40 @@ MonoBehaviour:
   contentType: 0
   assetBundleUnityVersion: 
   fallbackStatus: 0
+--- !u!114 &3825275463971368602
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 4167925416990528462}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 6fd7cab7d93b403280f2f9da978d8a4f, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  Bindings:
+  - ReferenceMesh:
+      referencePath: BaseMesh
+    Blendshape: shape_0
+    LocalBlendshape: shape_0_local
+  - ReferenceMesh:
+      referencePath: BaseMesh
+    Blendshape: shape_1
+    LocalBlendshape: shape_1
+  - ReferenceMesh:
+      referencePath: MissingMesh
+    Blendshape: missing_mesh_shape
+    LocalBlendshape: missing_mesh_shape
+  - ReferenceMesh:
+      referencePath: 
+    Blendshape: missing_mesh_shape_2
+    LocalBlendshape: missing_mesh_shape_2
 --- !u!1001 &3825275463173128406
 PrefabInstance:
   m_ObjectHideFlags: 0
   serializedVersion: 2
   m_Modification:
-    serializedVersion: 3
     m_TransformParent: {fileID: 3825275463613500751}
     m_Modifications:
     - target: {fileID: -8679921383154817045, guid: 14ac2ad30c5d3444ca37f76cea5a7047,
@@ -429,9 +454,6 @@ PrefabInstance:
       value: BaseMesh
       objectReference: {fileID: 0}
     m_RemovedComponents: []
-    m_RemovedGameObjects: []
-    m_AddedGameObjects: []
-    m_AddedComponents: []
   m_SourcePrefab: {fileID: 100100000, guid: 14ac2ad30c5d3444ca37f76cea5a7047, type: 3}
 --- !u!4 &3646968714803193661 stripped
 Transform:
@@ -444,7 +466,6 @@ PrefabInstance:
   m_ObjectHideFlags: 0
   serializedVersion: 2
   m_Modification:
-    serializedVersion: 3
     m_TransformParent: {fileID: 3825275463613500751}
     m_Modifications:
     - target: {fileID: -8679921383154817045, guid: 14ac2ad30c5d3444ca37f76cea5a7047,
@@ -548,52 +569,16 @@ PrefabInstance:
       value: SyncedMesh
       objectReference: {fileID: 0}
     m_RemovedComponents: []
-    m_RemovedGameObjects: []
-    m_AddedGameObjects: []
-    m_AddedComponents:
-    - targetCorrespondingSourceObject: {fileID: 919132149155446097, guid: 14ac2ad30c5d3444ca37f76cea5a7047,
-        type: 3}
-      insertIndex: -1
-      addedObject: {fileID: 3825275463971368602}
   m_SourcePrefab: {fileID: 100100000, guid: 14ac2ad30c5d3444ca37f76cea5a7047, type: 3}
---- !u!4 &3646968713996568948 stripped
-Transform:
-  m_CorrespondingSourceObject: {fileID: -8679921383154817045, guid: 14ac2ad30c5d3444ca37f76cea5a7047,
-    type: 3}
-  m_PrefabInstance: {fileID: 3825275463971368607}
-  m_PrefabAsset: {fileID: 0}
 --- !u!1 &4167925416990528462 stripped
 GameObject:
   m_CorrespondingSourceObject: {fileID: 919132149155446097, guid: 14ac2ad30c5d3444ca37f76cea5a7047,
     type: 3}
   m_PrefabInstance: {fileID: 3825275463971368607}
   m_PrefabAsset: {fileID: 0}
---- !u!114 &3825275463971368602
+--- !u!4 &3646968713996568948 stripped
-MonoBehaviour:
+Transform:
-  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: -8679921383154817045, guid: 14ac2ad30c5d3444ca37f76cea5a7047,
-  m_CorrespondingSourceObject: {fileID: 0}
+    type: 3}
-  m_PrefabInstance: {fileID: 0}
+  m_PrefabInstance: {fileID: 3825275463971368607}
   m_PrefabAsset: {fileID: 0}
-  m_GameObject: {fileID: 4167925416990528462}
-  m_Enabled: 1
-  m_EditorHideFlags: 0
-  m_Script: {fileID: 11500000, guid: 6fd7cab7d93b403280f2f9da978d8a4f, type: 3}
-  m_Name: 
-  m_EditorClassIdentifier: 
-  Bindings:
-  - ReferenceMesh:
-      referencePath: BaseMesh
-    Blendshape: shape_0
-    LocalBlendshape: shape_0_local
-  - ReferenceMesh:
-      referencePath: BaseMesh
-    Blendshape: shape_1
-    LocalBlendshape: shape_1
-  - ReferenceMesh:
-      referencePath: MissingMesh
-    Blendshape: missing_mesh_shape
-    LocalBlendshape: missing_mesh_shape
-  - ReferenceMesh:
-      referencePath: 
-    Blendshape: missing_mesh_shape_2
-    LocalBlendshape: missing_mesh_shape_2

UnitTests~/SyncedLayerHandling/AC1.controller

@@ -82,7 +82,10 @@ AnimatorStateMachine:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_Name: Base Layer
-  m_ChildStates: []
+  m_ChildStates:
+  - serializedVersion: 1
+    m_State: {fileID: 7429053045055472530}
+    m_Position: {x: 310.35324, y: 17.679626, z: 0}
   m_ChildStateMachines: []
   m_AnyStateTransitions: []
   m_EntryTransitions: []
@@ -92,7 +95,7 @@ AnimatorStateMachine:
   m_EntryPosition: {x: 50, y: 120, z: 0}
   m_ExitPosition: {x: 800, y: 120, z: 0}
   m_ParentStateMachinePosition: {x: 800, y: 20, z: 0}
-  m_DefaultState: {fileID: 0}
+  m_DefaultState: {fileID: 7429053045055472530}
 --- !u!1102 &592244106348618204
 AnimatorState:
   serializedVersion: 6
@@ -187,3 +190,29 @@ AnimatorStateMachine:
   m_ExitPosition: {x: 800, y: 120, z: 0}
   m_ParentStateMachinePosition: {x: 800, y: 20, z: 0}
   m_DefaultState: {fileID: 3457079820388324162}
+--- !u!1102 &7429053045055472530
+AnimatorState:
+  serializedVersion: 6
+  m_ObjectHideFlags: 1
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: New State
+  m_Speed: 1
+  m_CycleOffset: 0
+  m_Transitions: []
+  m_StateMachineBehaviours: []
+  m_Position: {x: 50, y: 50, z: 0}
+  m_IKOnFeet: 0
+  m_WriteDefaultValues: 1
+  m_Mirror: 0
+  m_SpeedParameterActive: 0
+  m_MirrorParameterActive: 0
+  m_CycleOffsetParameterActive: 0
+  m_TimeParameterActive: 0
+  m_Motion: {fileID: 0}
+  m_Tag: 
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UnitTests~/TestBase.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using nadena.dev.modular_avatar.core.editor;
 using nadena.dev.modular_avatar.editor.ErrorReporting;
 using nadena.dev.ndmf;
+using nadena.dev.ndmf.ui;
 using NUnit.Framework;
 using UnityEditor;
 using UnityEditor.Animations;
@@ -41,6 +42,7 @@ namespace modular_avatar_tests
             }
 
             ErrorReport.Clear();
+            ErrorReportWindow.DISABLE_WINDOW = true;
             objects = new List<GameObject>();
         }
 
@@ -54,6 +56,7 @@ namespace modular_avatar_tests
 
             AssetDatabase.DeleteAsset(TEMP_ASSET_PATH);
             FileUtil.DeleteFileOrDirectory(TEMP_ASSET_PATH);
+            ErrorReportWindow.DISABLE_WINDOW = false;
         }
 
         protected nadena.dev.ndmf.BuildContext CreateContext(GameObject root)

package.json

@@ -16,6 +16,6 @@
   },
   "vpmDependencies": {
     "com.vrchat.avatars": ">=3.2.0",
-    "nadena.dev.ndmf": ">=1.3.0-alpha.1 <2.0.0-a"
+    "nadena.dev.ndmf": ">=1.3.0-alpha.2 <2.0.0-a"
   }
 }