Merge branch '4.1' into 4.2-beta

# Conflicts:
#	spine-godot/spine_godot/SpineEditorPlugin.cpp

CHANGELOG.md

@@ -86,6 +86,8 @@
   * Added `UnscaledTime` property at `SkeletonAnimation` as well, behaving like `SkeletonGraphic.UnscaledTime`. If enabled, AnimationState uses unscaled game time (`Time.unscaledDeltaTime`), running animations independent of e.g. game pause (`Time.timeScale`).
   * `SkeletonAnimation`, `SkeletonMecanim` and `SkeletonGraphic` now provide an additional `OnAnimationRebuild` callback delegate which is issued after both the skeleton and the animation state have been initialized.
   * Timeline `SkeletonAnimation Track` and `SkeletonGraphic Track` now provide an `Unscaled Time` property. Whenever starting a new animation clip of this track, `SkeletonAnimation.UnscaledTime` or `SkeletonGraphic.UnscaledTime` will be set to this value. This allows you to play back Timeline clips either in normal game time or unscaled game time. Note that `PlayableDirector.UpdateMethod` is ignored and replaced by this property, which allows more fine-granular control per Timeline track.
+  * Added `SkeletonRootMotion` callback delegates `ProcessRootMotionOverride` and `PhysicsUpdateRootMotionOverride` to customize how root motion is applied. The new property `disableOnOverride` determines whether the callback will be issued in addition or instead of normally applying root motion. Added property `rootMotionScaleRotation` to allow scaling rotational root-motion to match e.g. a 90 degree rotation to a custom target angle.
+  * Added outline shader parameter `Advanced - Opaque Alpha` which can be used to exclude problematic semi-transparent areas, which may receive an undesired large outline color overlay otherwise.
  
 * **Breaking changes**
   * Made `SkeletonGraphic.unscaledTime` parameter protected, use the new property `UnscaledTime` instead.

spine-godot/spine_godot/SpineEditorPlugin.cpp

@@ -78,7 +78,7 @@ Error SpineJsonResourceImportPlugin::import(const String &source_file, const Str
 #if VERSION_MAJOR > 3
 	error = ResourceSaver::save(skeleton_file_res, file_name);
 #else
-	auto error = ResourceSaver::save(file_name, skeleton_file_res);
+	error = ResourceSaver::save(file_name, skeleton_file_res);
 #endif
 	return error;
 }
@@ -96,7 +96,7 @@ Error SpineBinaryResourceImportPlugin::import(const String &source_file, const S
 #if VERSION_MAJOR > 3
 	error = ResourceSaver::save(skeleton_file_res, file_name);
 #else
-	auto error = ResourceSaver::save(file_name, skeleton_file_res);
+	error = ResourceSaver::save(file_name, skeleton_file_res);
 #endif
 	return error;
 }

spine-unity/Assets/Spine/Editor/spine-unity/Editor/Components/SkeletonRootMotionBaseInspector.cs

@@ -40,6 +40,7 @@ namespace Spine.Unity.Editor {
 		protected SerializedProperty transformRotation;
 		protected SerializedProperty rootMotionScaleX;
 		protected SerializedProperty rootMotionScaleY;
+		protected SerializedProperty rootMotionScaleRotation;
 		protected SerializedProperty rootMotionTranslateXPerY;
 		protected SerializedProperty rootMotionTranslateYPerX;
 		protected SerializedProperty rigidBody2D;
@@ -52,6 +53,7 @@ namespace Spine.Unity.Editor {
 		protected GUIContent transformRotationLabel;
 		protected GUIContent rootMotionScaleXLabel;
 		protected GUIContent rootMotionScaleYLabel;
+		protected GUIContent rootMotionScaleRotationLabel;
 		protected GUIContent rootMotionTranslateXPerYLabel;
 		protected GUIContent rootMotionTranslateYPerXLabel;
 		protected GUIContent rigidBody2DLabel;
@@ -66,6 +68,7 @@ namespace Spine.Unity.Editor {
 			transformRotation = serializedObject.FindProperty("transformRotation");
 			rootMotionScaleX = serializedObject.FindProperty("rootMotionScaleX");
 			rootMotionScaleY = serializedObject.FindProperty("rootMotionScaleY");
+			rootMotionScaleRotation = serializedObject.FindProperty("rootMotionScaleRotation");
 			rootMotionTranslateXPerY = serializedObject.FindProperty("rootMotionTranslateXPerY");
 			rootMotionTranslateYPerX = serializedObject.FindProperty("rootMotionTranslateYPerX");
 			rigidBody2D = serializedObject.FindProperty("rigidBody2D");
@@ -78,6 +81,7 @@ namespace Spine.Unity.Editor {
 			transformRotationLabel = new UnityEngine.GUIContent("Rotation", "Use the rotation of the bone.");
 			rootMotionScaleXLabel = new UnityEngine.GUIContent("Root Motion Scale (X)", "Scale applied to the horizontal root motion delta. Can be used for delta compensation to e.g. stretch a jump to the desired distance.");
 			rootMotionScaleYLabel = new UnityEngine.GUIContent("Root Motion Scale (Y)", "Scale applied to the vertical root motion delta. Can be used for delta compensation to e.g. stretch a jump to the desired distance.");
+			rootMotionScaleRotationLabel = new UnityEngine.GUIContent("Root Motion Scale (Rotation)", "Scale applied to the rotational root motion delta. Can be used for delta compensation to e.g. adjust an angled jump landing to the desired platform angle.");
 			rootMotionTranslateXPerYLabel = new UnityEngine.GUIContent("Root Motion Translate (X)", "Added X translation per root motion Y delta. Can be used for delta compensation when scaling is not enough, to e.g. offset a horizontal jump to a vertically different goal.");
 			rootMotionTranslateYPerXLabel = new UnityEngine.GUIContent("Root Motion Translate (Y)", "Added Y translation per root motion X delta. Can be used for delta compensation when scaling is not enough, to e.g. offset a horizontal jump to a vertically different goal.");
 			rigidBody2DLabel = new UnityEngine.GUIContent("Rigidbody2D",
@@ -110,6 +114,7 @@ namespace Spine.Unity.Editor {
 
 			EditorGUILayout.PropertyField(rootMotionScaleX, rootMotionScaleXLabel);
 			EditorGUILayout.PropertyField(rootMotionScaleY, rootMotionScaleYLabel);
+			EditorGUILayout.PropertyField(rootMotionScaleRotation, rootMotionScaleRotationLabel);
 
 			EditorGUILayout.PropertyField(rootMotionTranslateXPerY, rootMotionTranslateXPerYLabel);
 			EditorGUILayout.PropertyField(rootMotionTranslateYPerX, rootMotionTranslateYPerXLabel);

spine-unity/Assets/Spine/Editor/spine-unity/Editor/Components/SkeletonUtilityInspector.cs

@@ -31,6 +31,10 @@
 #define NEW_PREFAB_SYSTEM
 #endif
 
+#if UNITY_2021_2_OR_NEWER
+#define PUBLIC_SET_ICON_FOR_OBJECT
+#endif
+
 using System.Reflection;
 using UnityEditor;
 using UnityEngine;
@@ -145,11 +149,14 @@ namespace Spine.Unity.Editor {
 					icon = Icons.constraintNib;
 					break;
 				}
-
+#if PUBLIC_SET_ICON_FOR_OBJECT
+			EditorGUIUtility.SetIconForObject(boneComponent.gameObject, icon);
+#else
 			typeof(EditorGUIUtility).InvokeMember("SetIconForObject", BindingFlags.InvokeMethod | BindingFlags.Static | BindingFlags.NonPublic, null, null, new object[2] {
 				boneComponent.gameObject,
 				icon
 			});
+#endif
 		}
 
 		static void AttachIconsToChildren (Transform root) {

spine-unity/Assets/Spine/Editor/spine-unity/Editor/Shaders/SpineShaderWithOutlineGUI.cs

@@ -44,6 +44,7 @@ public class SpineShaderWithOutlineGUI : ShaderGUI {
 	MaterialProperty _ThresholdEnd = null;
 	MaterialProperty _OutlineSmoothness = null;
 	MaterialProperty _Use8Neighbourhood = null;
+	MaterialProperty _OutlineOpaqueAlpha = null;
 	MaterialProperty _OutlineMipLevel = null;
 	MaterialProperty _StencilComp = null;
 	MaterialProperty _StencilRef = null;
@@ -55,6 +56,7 @@ public class SpineShaderWithOutlineGUI : ShaderGUI {
 	static GUIContent _ThresholdEndText = new GUIContent("Outline Threshold", "");
 	static GUIContent _OutlineSmoothnessText = new GUIContent("Outline Smoothness", "");
 	static GUIContent _Use8NeighbourhoodText = new GUIContent("Sample 8 Neighbours", "");
+	static GUIContent _OutlineOpaqueAlphaText = new GUIContent("Opaque Alpha", "If a pixel's alpha value is above this threshold it will not receive any outline color overlay. Use to exclude problematic semi-transparent areas.");
 	static GUIContent _OutlineMipLevelText = new GUIContent("Outline Mip Level", "");
 	static GUIContent _StencilCompText = new GUIContent("Stencil Comparison", "");
 	static GUIContent _StencilRefText = new GUIContent("Stencil Reference", "");
@@ -91,6 +93,7 @@ public class SpineShaderWithOutlineGUI : ShaderGUI {
 		_ThresholdEnd = FindProperty("_ThresholdEnd", props, false);
 		_OutlineSmoothness = FindProperty("_OutlineSmoothness", props, false);
 		_Use8Neighbourhood = FindProperty("_Use8Neighbourhood", props, false);
+		_OutlineOpaqueAlpha = FindProperty("_OutlineOpaqueAlpha", props, false);
 		_OutlineMipLevel = FindProperty("_OutlineMipLevel", props, false);
 
 		_StencilComp = FindProperty("_StencilComp", props, false);
@@ -158,6 +161,7 @@ public class SpineShaderWithOutlineGUI : ShaderGUI {
 					_materialEditor.ShaderProperty(_ThresholdEnd, _ThresholdEndText);
 					_materialEditor.ShaderProperty(_OutlineSmoothness, _OutlineSmoothnessText);
 					_materialEditor.ShaderProperty(_Use8Neighbourhood, _Use8NeighbourhoodText);
+					_materialEditor.ShaderProperty(_OutlineOpaqueAlpha, _OutlineOpaqueAlphaText);
 					_materialEditor.ShaderProperty(_OutlineMipLevel, _OutlineMipLevelText);
 				}
 			}

spine-unity/Assets/Spine/Editor/spine-unity/Editor/Utility/AssetUtility.cs

@@ -338,6 +338,11 @@ namespace Spine.Unity.Editor {
 						Debug.LogWarningFormat("`{0}` : If this file is a Spine atlas, please change its extension to `.atlas.txt`. This is to allow Unity to recognize it and avoid filename collisions. You can also set this file extension when exporting from the Spine editor.", str);
 					}
 					break;
+				case ".skel":
+					if (SpineEditorUtilities.Preferences.atlasTxtImportWarning) {
+						Debug.LogWarningFormat("`{0}` : If this file is a Spine skeleton, please change its extension to `.skel.bytes`. This is to allow Unity to recognize it and avoid filename collisions. You can also set this file extension when exporting from the Spine editor.", str);
+					}
+					break;
 				case ".txt":
 					if (str.EndsWith(".atlas.txt", System.StringComparison.Ordinal))
 						atlasPaths.Add(str);

spine-unity/Assets/Spine/Editor/spine-unity/Editor/Windows/SpinePreferences.cs

@@ -288,7 +288,7 @@ namespace Spine.Unity.Editor {
 				EditorGUILayout.Space();
 				EditorGUILayout.LabelField("Warnings", EditorStyles.boldLabel);
 				{
-					EditorGUILayout.PropertyField(settings.FindProperty("atlasTxtImportWarning"), new GUIContent("Atlas Extension Warning", "Log a warning and recommendation whenever a `.atlas` file is found."));
+					EditorGUILayout.PropertyField(settings.FindProperty("atlasTxtImportWarning"), new GUIContent("Atlas & Skel Extension Warning", "Log a warning and recommendation whenever a `.atlas` or `.skel` file is found."));
 					EditorGUILayout.PropertyField(settings.FindProperty("textureImporterWarning"), new GUIContent("Texture Settings Warning", "Log a warning and recommendation whenever Texture Import Settings are detected that could lead to undesired effects, e.g. white border artifacts."));
 					EditorGUILayout.PropertyField(settings.FindProperty("componentMaterialWarning"), new GUIContent("Component & Material Warning", "Log a warning and recommendation whenever Component and Material settings are not compatible."));
 				}

spine-unity/Assets/Spine/Runtime/spine-unity/Components/RootMotion/SkeletonRootMotionBase.cs

@@ -50,6 +50,7 @@ namespace Spine.Unity {
 
 		public float rootMotionScaleX = 1;
 		public float rootMotionScaleY = 1;
+		public float rootMotionScaleRotation = 1;
 		/// <summary>Skeleton space X translation per skeleton space Y translation root motion.</summary>
 		public float rootMotionTranslateXPerY = 0;
 		/// <summary>Skeleton space Y translation per skeleton space X translation root motion.</summary>
@@ -60,6 +61,36 @@ namespace Spine.Unity {
 		public bool applyRigidbody2DGravity = false;
 		public Rigidbody rigidBody;
 
+		/// <summary>Delegate type for customizing application of rootmotion.
+		public delegate void RootMotionDelegate (SkeletonRootMotionBase component, Vector2 translation, float rotation);
+		/// <summary>This callback can be used to apply root-motion in a custom way. It is raised after evaluating
+		/// this animation frame's root-motion, before it is potentially applied (see <see cref="disableOnOverride"/>)
+		/// to either Transform or Rigidbody.
+		/// When <see cref="SkeletonAnimation.UpdateTiming"/> is set to <see cref="UpdateTiming.InUpdate"/>, multiple
+		/// animation frames might take place before <c>FixedUpdate</c> is called once.
+		/// The callback parameters <c>translation</c> and <c>rotation</c> are filled out with
+		/// this animation frame's skeleton-space root-motion (not cumulated). You can use
+		/// e.g. <c>transform.TransformVector()</c> to transform skeleton-space root-motion to world space.
+		/// </summary>
+		/// <seealso cref="PhysicsUpdateRootMotionOverride"/>
+		public event RootMotionDelegate ProcessRootMotionOverride;
+		/// <summary>This callback can be used to apply root-motion in a custom way. It is raised in FixedUpdate
+		/// after (when <see cref="disableOnOverride"/> is set to false) or instead of when root-motion
+		/// would be applied at the Rigidbody.
+		/// When <see cref="SkeletonAnimation.UpdateTiming"/> is set to <see cref="UpdateTiming.InUpdate"/>, multiple
+		/// animation frames might take place before before <c>FixedUpdate</c> is called once.
+		/// The callback parameters <c>translation</c> and <c>rotation</c> are filled out with the
+		/// (cumulated) skeleton-space root-motion since the the last <c>FixedUpdate</c> call. You can use
+		/// e.g. <c>transform.TransformVector()</c> to transform skeleton-space root-motion to world space.
+		/// </summary>
+		/// <seealso cref="ProcessRootMotionOverride"/>
+		public event RootMotionDelegate PhysicsUpdateRootMotionOverride;
+		/// <summary>When true, root-motion is not applied to the Transform or Rigidbody.
+		/// Otherwise the delegate callbacks are issued additionally.</summary>
+		public bool disableOnOverride = true;
+
+		public Bone RootMotionBone { get { return rootMotionBone; } }
+
 		public bool UsesRigidbody {
 			get { return rigidBody != null || rigidBody2D != null; }
 		}
@@ -108,12 +139,13 @@ namespace Spine.Unity {
 		protected List<float> transformConstraintLastRotation = new List<float>();
 		protected List<Bone> topLevelBones = new List<Bone>();
 		protected Vector2 initialOffset = Vector2.zero;
+		protected bool accumulatedUntilFixedUpdate = false;
 		protected Vector2 tempSkeletonDisplacement;
 		protected Vector3 rigidbodyDisplacement;
 		protected Vector3 previousRigidbodyRootMotion = Vector2.zero;
 		protected Vector2 additionalRigidbody2DMovement = Vector2.zero;
 
-		protected Quaternion rigidbodyRotation = Quaternion.identity;
+		protected Quaternion rigidbodyLocalRotation = Quaternion.identity;
 		protected float rigidbody2DRotation;
 		protected float initialOffsetRotation;
 		protected float tempSkeletonRotation;
@@ -149,35 +181,44 @@ namespace Spine.Unity {
 		}
 
 		protected virtual void PhysicsUpdate (bool skeletonAnimationUsesFixedUpdate) {
-			if (rigidBody2D != null) {
+			Vector2 callbackDisplacement = tempSkeletonDisplacement;
-				Vector2 gravityAndVelocityMovement = Vector2.zero;
+			float callbackRotation = tempSkeletonRotation;
-				if (applyRigidbody2DGravity) {
-					float deltaTime = Time.fixedDeltaTime;
-					float deltaTimeSquared = (deltaTime * deltaTime);
 
-					rigidBody2D.velocity += rigidBody2D.gravityScale * Physics2D.gravity * deltaTime;
+			bool isApplyAtRigidbodyAllowed = PhysicsUpdateRootMotionOverride == null || !disableOnOverride;
-					gravityAndVelocityMovement = 0.5f * rigidBody2D.gravityScale * Physics2D.gravity * deltaTimeSquared +
+			if (isApplyAtRigidbodyAllowed) {
-						rigidBody2D.velocity * deltaTime;
+				if (rigidBody2D != null) {
+					Vector2 gravityAndVelocityMovement = Vector2.zero;
+					if (applyRigidbody2DGravity) {
+						float deltaTime = Time.fixedDeltaTime;
+						float deltaTimeSquared = (deltaTime * deltaTime);
+
+						rigidBody2D.velocity += rigidBody2D.gravityScale * Physics2D.gravity * deltaTime;
+						gravityAndVelocityMovement = 0.5f * rigidBody2D.gravityScale * Physics2D.gravity * deltaTimeSquared +
+							rigidBody2D.velocity * deltaTime;
+					}
+
+					Vector2 rigidbodyDisplacement2D = new Vector2(rigidbodyDisplacement.x, rigidbodyDisplacement.y);
+					rigidBody2D.MovePosition(gravityAndVelocityMovement + new Vector2(transform.position.x, transform.position.y)
+						+ rigidbodyDisplacement2D + additionalRigidbody2DMovement);
+					rigidBody2D.MoveRotation(rigidbody2DRotation + rigidBody2D.rotation);
+				} else if (rigidBody != null) {
+					rigidBody.MovePosition(transform.position
+						+ new Vector3(rigidbodyDisplacement.x, rigidbodyDisplacement.y, rigidbodyDisplacement.z));
+					rigidBody.MoveRotation(rigidBody.rotation * rigidbodyLocalRotation);
 				}
+			}
 
-				Vector2 rigidbodyDisplacement2D = new Vector2(rigidbodyDisplacement.x, rigidbodyDisplacement.y);
+			previousRigidbodyRootMotion = rigidbodyDisplacement;
-				rigidBody2D.MovePosition(gravityAndVelocityMovement + new Vector2(transform.position.x, transform.position.y)
+			if (accumulatedUntilFixedUpdate) {
-					+ rigidbodyDisplacement2D + additionalRigidbody2DMovement);
+				Vector2 parentBoneScale;
-				rigidBody2D.MoveRotation(rigidbody2DRotation + rigidBody2D.rotation);
+				GetScaleAffectingRootMotion(out parentBoneScale);
-			} else if (rigidBody != null) {
-				rigidBody.MovePosition(transform.position
-					+ new Vector3(rigidbodyDisplacement.x, rigidbodyDisplacement.y, 0));
-				rigidBody.MoveRotation(rigidBody.rotation * rigidbodyRotation);
-			} else return;
-
-			Vector2 parentBoneScale;
-			GetScaleAffectingRootMotion(out parentBoneScale);
-			if (!skeletonAnimationUsesFixedUpdate) {
 				ClearEffectiveBoneOffsets(parentBoneScale);
 				skeletonComponent.Skeleton.UpdateWorldTransform();
 			}
-			previousRigidbodyRootMotion = rigidbodyDisplacement;
 			ClearRigidbodyTempMovement();
+
+			if (PhysicsUpdateRootMotionOverride != null)
+				PhysicsUpdateRootMotionOverride(this, callbackDisplacement, callbackRotation);
 		}
 
 		protected virtual void OnDisable () {
@@ -499,6 +540,7 @@ namespace Spine.Unity {
 			float skeletonRotationDelta = 0;
 			if (transformRotation) {
 				float boneLocalDeltaRotation = CalculateAnimationsRotationDelta();
+				boneLocalDeltaRotation *= rootMotionScaleRotation;
 				skeletonRotationDelta = GetSkeletonSpaceRotationDelta(boneLocalDeltaRotation, totalScale);
 			}
 
@@ -511,40 +553,45 @@ namespace Spine.Unity {
 
 		void ApplyRootMotion (Vector2 skeletonTranslationDelta, float skeletonRotationDelta, Vector2 parentBoneScale,
 			bool skeletonAnimationUsesFixedUpdate) {
-			// Apply root motion to Transform or RigidBody;
+
-			if (UsesRigidbody) {
+			// Accumulated displacement is applied on the next Physics update in FixedUpdate.
+			// Until the next Physics update, tempSkeletonDisplacement and tempSkeletonRotation
+			// are offsetting bone locations to prevent stutter which would otherwise occur if
+			// we don't move every Update.
+			bool usesRigidbody = this.UsesRigidbody;
+			bool applyToTransform = !usesRigidbody && (ProcessRootMotionOverride == null || !disableOnOverride);
+			accumulatedUntilFixedUpdate = !applyToTransform && !skeletonAnimationUsesFixedUpdate;
+
+			if (ProcessRootMotionOverride != null)
+				ProcessRootMotionOverride(this, skeletonTranslationDelta, skeletonRotationDelta);
+
+			// Apply root motion to Transform or update values applied to RigidBody later (must happen in FixedUpdate).
+			if (usesRigidbody) {
 				rigidbodyDisplacement += transform.TransformVector(skeletonTranslationDelta);
-
-				// Accumulated displacement is applied on the next Physics update in FixedUpdate.
-				// Until the next Physics update, tempBoneDisplacement is offsetting bone locations
-				// to prevent stutter which would otherwise occur if we don't move every Update.
-				if (!skeletonAnimationUsesFixedUpdate)
-					tempSkeletonDisplacement += skeletonTranslationDelta;
-
 				if (skeletonRotationDelta != 0.0f) {
 					if (rigidBody != null) {
-						Quaternion addedWorldRotation = Quaternion.AngleAxis(skeletonRotationDelta, transform.forward);
+						Quaternion addedWorldRotation = Quaternion.Euler(0, 0, skeletonRotationDelta);
-						rigidbodyRotation = rigidbodyRotation * addedWorldRotation;
+						rigidbodyLocalRotation = rigidbodyLocalRotation * addedWorldRotation;
 					} else if (rigidBody2D != null) {
 						Vector3 lossyScale = transform.lossyScale;
 						float rotationSign = lossyScale.x * lossyScale.y > 0 ? 1 : -1;
 						rigidbody2DRotation += rotationSign * skeletonRotationDelta;
 					}
-					if (!skeletonAnimationUsesFixedUpdate)
-						tempSkeletonRotation += skeletonRotationDelta;
 				}
-
+			} else if (applyToTransform) {
-				if (skeletonAnimationUsesFixedUpdate)
-					ClearEffectiveBoneOffsets(parentBoneScale);
-				else
-					SetEffectiveBoneOffsetsTo(tempSkeletonDisplacement, tempSkeletonRotation, parentBoneScale);
-			} else {
 				transform.position += transform.TransformVector(skeletonTranslationDelta);
 				if (skeletonRotationDelta != 0.0f) {
 					Vector3 lossyScale = transform.lossyScale;
 					float rotationSign = lossyScale.x * lossyScale.y > 0 ? 1 : -1;
 					transform.Rotate(0, 0, rotationSign * skeletonRotationDelta);
 				}
+			}
+
+			tempSkeletonDisplacement += skeletonTranslationDelta;
+			tempSkeletonRotation += skeletonRotationDelta;
+			if (accumulatedUntilFixedUpdate) {
+				SetEffectiveBoneOffsetsTo(tempSkeletonDisplacement, tempSkeletonRotation, parentBoneScale);
+			} else {
 				ClearEffectiveBoneOffsets(parentBoneScale);
 			}
 		}
@@ -654,7 +701,7 @@ namespace Spine.Unity {
 		void ClearRigidbodyTempMovement () {
 			rigidbodyDisplacement = Vector2.zero;
 			tempSkeletonDisplacement = Vector2.zero;
-			rigidbodyRotation = Quaternion.identity;
+			rigidbodyLocalRotation = Quaternion.identity;
 			rigidbody2DRotation = 0;
 			tempSkeletonRotation = 0;
 		}

spine-unity/Assets/Spine/Runtime/spine-unity/Components/SkeletonGraphic.cs

@@ -114,6 +114,11 @@ namespace Spine.Unity {
 				} else {
 					if (freeze) return;
 
+					if (!Application.isPlaying) {
+						Initialize(true);
+						return;
+					}
+
 					if (!string.IsNullOrEmpty(initialSkinName)) {
 						var skin = skeleton.Data.FindSkin(initialSkinName);
 						if (skin != null) {
@@ -124,19 +129,6 @@ namespace Spine.Unity {
 						}
 
 					}
-
-					// Only provide visual feedback to inspector changes in Unity Editor Edit mode.
-					if (!Application.isPlaying) {
-						skeleton.ScaleX = this.initialFlipX ? -1 : 1;
-						skeleton.ScaleY = this.initialFlipY ? -1 : 1;
-
-						state.ClearTrack(0);
-						skeleton.SetToSetupPose();
-						if (!string.IsNullOrEmpty(startingAnimation)) {
-							state.SetAnimation(0, startingAnimation, startingLoop);
-							Update(0f);
-						}
-					}
 				}
 			} else {
 				// Under some circumstances (e.g. sometimes on the first import) OnValidate is called
@@ -727,12 +719,6 @@ namespace Spine.Unity {
 			meshGenerator.Begin();
 
 			bool useAddSubmesh = currentInstructions.hasActiveClipping && currentInstructions.submeshInstructions.Count > 0;
-#if UNITY_EDITOR
-			// Editor triggers Graphic.Rebuild without prior LateUpdate call, which
-			// can lead to filling unprepared vertex buffer and out-of-bounds write access.
-			if (!Application.isPlaying)
-				useAddSubmesh = true;
-#endif
 			if (useAddSubmesh) {
 				meshGenerator.AddSubmesh(currentInstructions.submeshInstructions.Items[0], updateTriangles);
 			} else {

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Additive.shader

@@ -21,6 +21,7 @@ Shader "Spine/Blend Modes/Skeleton PMA Additive" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Multiply.shader

@@ -21,6 +21,7 @@ Shader "Spine/Blend Modes/Skeleton PMA Multiply" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/BlendModes/Spine-Skeleton-PMA-Screen.shader

@@ -21,6 +21,7 @@ Shader "Spine/Blend Modes/Skeleton PMA Screen" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/CGIncludes/Spine-Outline-Common.cginc

@@ -4,7 +4,7 @@
 float4 computeOutlinePixel(sampler2D mainTexture, float2 mainTextureTexelSize,
 	float2 uv, float vertexColorAlpha,
 	float OutlineWidth, float OutlineReferenceTexWidth, float OutlineMipLevel,
-	float OutlineSmoothness, float ThresholdEnd, float4 OutlineColor) {
+	float OutlineSmoothness, float ThresholdEnd, float OutlineOpaqueAlpha, float4 OutlineColor) {
 
 	float4 texColor = fixed4(0, 0, 0, 0);
 
@@ -36,7 +36,18 @@ float4 computeOutlinePixel(sampler2D mainTexture, float2 mainTextureTexelSize,
 #endif
 	float thresholdStart = ThresholdEnd * (1.0 - OutlineSmoothness);
 	float outlineAlpha = saturate(saturate((average - thresholdStart) / (ThresholdEnd - thresholdStart)) - pixelCenter);
+	outlineAlpha = pixelCenter > OutlineOpaqueAlpha ? 0 : outlineAlpha;
 	return lerp(texColor, OutlineColor, outlineAlpha);
 }
 
+float4 computeOutlinePixel(sampler2D mainTexture, float2 mainTextureTexelSize,
+	float2 uv, float vertexColorAlpha,
+	float OutlineWidth, float OutlineReferenceTexWidth, float OutlineMipLevel,
+	float OutlineSmoothness, float ThresholdEnd, float4 OutlineColor) {
+
+	return computeOutlinePixel(mainTexture, mainTextureTexelSize,
+		uv, vertexColorAlpha, OutlineWidth, OutlineReferenceTexWidth, OutlineMipLevel,
+		OutlineSmoothness, ThresholdEnd, 1.0, OutlineColor);
+}
+
 #endif

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/BlendModes/Spine-Skeleton-PMA-Additive-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Blend Modes/Skeleton PMA Additive" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/BlendModes/Spine-Skeleton-PMA-Multiply-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Blend Modes/Skeleton PMA Multiply" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/BlendModes/Spine-Skeleton-PMA-Screen-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Blend Modes/Skeleton PMA Screen" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/CGIncludes/Spine-Outline-Pass.cginc

@@ -16,6 +16,7 @@ float4 _OutlineColor;
 float4 _MainTex_TexelSize;
 float _ThresholdEnd;
 float _OutlineSmoothness;
+float _OutlineOpaqueAlpha;
 float _OutlineMipLevel;
 int _OutlineReferenceTexWidth;
 
@@ -80,7 +81,7 @@ float4 fragOutline(VertexOutput i) : SV_Target {
 
 	float4 texColor = computeOutlinePixel(_MainTex, _MainTex_TexelSize.xy, i.uv, i.vertexColorAlpha,
 		_OutlineWidth, _OutlineReferenceTexWidth, _OutlineMipLevel,
-		_OutlineSmoothness, _ThresholdEnd, _OutlineColor);
+		_OutlineSmoothness, _ThresholdEnd, _OutlineOpaqueAlpha, _OutlineColor);
 
 #ifdef SKELETON_GRAPHIC
 	texColor *= UnityGet2DClipping(i.worldPosition.xy, _ClipRect);

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/SkeletonGraphic/Spine-SkeletonGraphic-Outline.shader

@@ -26,6 +26,7 @@ Shader "Spine/Outline/SkeletonGraphic"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/SkeletonGraphic/Spine-SkeletonGraphic-TintBlack-Outline.shader

@@ -28,6 +28,7 @@ Shader "Spine/Outline/SkeletonGraphic Tint Black"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Fill-Outline.shader

@@ -17,6 +17,7 @@ Shader "Spine/Outline/Skeleton Fill" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 	SubShader {

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Lit-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Skeleton Lit" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Lit-ZWrite-Outline.shader

@@ -17,6 +17,7 @@ Shader "Spine/Outline/Skeleton Lit ZWrite" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Outline.shader

@@ -15,6 +15,7 @@ Shader "Spine/Outline/Skeleton" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-OutlineOnly-ZWrite.shader

@@ -14,6 +14,7 @@ Shader "Spine/Outline/OutlineOnly-ZWrite" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-Tint-Outline.shader

@@ -17,6 +17,7 @@ Shader "Spine/Outline/Skeleton Tint" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Skeleton-TintBlack-Outline.shader

@@ -17,6 +17,7 @@ Shader "Spine/Outline/Skeleton Tint Black" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Spine-Special-Skeleton-Grayscale-Outline.shader

@@ -16,6 +16,7 @@ Shader "Spine/Outline/Special/Skeleton Grayscale" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Sprite/SpritesPixelLit-Outline.shader

@@ -53,6 +53,7 @@ Shader "Spine/Outline/Sprite/Pixel Lit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Sprite/SpritesUnlit-Outline.shader

@@ -36,6 +36,7 @@ Shader "Spine/Outline/Sprite/Unlit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Outline/Sprite/SpritesVertexLit-Outline.shader

@@ -54,6 +54,7 @@ Shader "Spine/Outline/Sprite/Vertex Lit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic-Additive.shader

@@ -26,6 +26,7 @@ Shader "Spine/SkeletonGraphic Additive"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic-Multiply.shader

@@ -26,6 +26,7 @@ Shader "Spine/SkeletonGraphic Multiply"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic-Screen.shader

@@ -26,6 +26,7 @@ Shader "Spine/SkeletonGraphic Screen"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic-TintBlack.shader

@@ -29,6 +29,7 @@ Shader "Spine/SkeletonGraphic Tint Black"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/SkeletonGraphic/Spine-SkeletonGraphic.shader

@@ -26,6 +26,7 @@ Shader "Spine/SkeletonGraphic"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-Fill.shader

@@ -19,6 +19,7 @@ Shader "Spine/Skeleton Fill" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 	SubShader {

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-Lit-ZWrite.shader

@@ -20,6 +20,7 @@ Shader "Spine/Skeleton Lit ZWrite" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-Lit.shader

@@ -19,6 +19,7 @@ Shader "Spine/Skeleton Lit" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-Tint.shader

@@ -22,6 +22,7 @@ Shader "Spine/Skeleton Tint" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton-TintBlack.shader

@@ -24,6 +24,7 @@ Shader "Spine/Skeleton Tint Black" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Skeleton.shader

@@ -13,6 +13,7 @@ Shader "Spine/Skeleton" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Spine-Special-Skeleton-Grayscale.shader

@@ -18,6 +18,7 @@ Shader "Spine/Special/Skeleton Grayscale" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Sprite/SpritesPixelLit.shader

@@ -53,6 +53,7 @@ Shader "Spine/Sprite/Pixel Lit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Assets/Spine/Runtime/spine-unity/Shaders/Sprite/SpritesUnlit.shader

@@ -34,6 +34,7 @@ Shader "Spine/Sprite/Unlit"
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
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spine-unity/Modules/com.esotericsoftware.spine.spine-unity-tests/Tests/playmode-tests/src/RootMotionTests.cs

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+/******************************************************************************
+ * Spine Runtimes License Agreement
+ * Last updated September 24, 2021. Replaces all prior versions.
+ *
+ * Copyright (c) 2013-2022, Esoteric Software LLC
+ *
+ * Integration of the Spine Runtimes into software or otherwise creating
+ * derivative works of the Spine Runtimes is permitted under the terms and
+ * conditions of Section 2 of the Spine Editor License Agreement:
+ * http://esotericsoftware.com/spine-editor-license
+ *
+ * Otherwise, it is permitted to integrate the Spine Runtimes into software
+ * or otherwise create derivative works of the Spine Runtimes (collectively,
+ * "Products"), provided that each user of the Products must obtain their own
+ * Spine Editor license and redistribution of the Products in any form must
+ * include this license and copyright notice.
+ *
+ * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
+ * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using NUnit.Framework;
+using Spine;
+using Spine.Unity;
+using System.Collections;
+using UnityEngine;
+using UnityEngine.TestTools;
+
+public class RootMotionTests {
+
+	const float WalkRootMotionVelocity = 9.656f; // value specific to this test animation
+	const float PositionEpsilon = 0.01f;
+
+	GameObject rootGameObject;
+	SkeletonRootMotion skeletonRootMotion;
+	SkeletonAnimation skeletonAnimation;
+	Transform skeletonTransform;
+
+	float savedFixedTimeStep;
+	Vector2 translationDeltaSum = Vector2.zero;
+	float rotationDeltaSum = 0f;
+	int loopsComplete = 0;
+
+	[UnityTest]
+	public IEnumerator Test01BasicFunctionality () {
+		SetupLoadingPrefab("RootMotionTestPrefabRoot", "straight-walk");
+		float lastPositionX = skeletonTransform.position.x;
+
+		// root motion shall lead to increasing transform position
+		for (int i = 0; i < 30; ++i) {
+			yield return null;
+			lastPositionX = ExpectIncreasingPositionX(lastPositionX, Time.deltaTime * WalkRootMotionVelocity);
+		}
+
+		// disabling the root motion component shall no longer change the transform
+		skeletonRootMotion.enabled = false;
+		for (int i = 0; i < 3; ++i) {
+			yield return null;
+			lastPositionX = ExpectUnchangedPositionX(lastPositionX);
+		}
+	}
+
+	[UnityTest]
+	public IEnumerator Test02BoneOffsetNoRigidbody () {
+		SetupLoadingPrefab("RootMotionTestPrefabRoot", "straight-walk");
+		yield return null;
+		Bone topLevelBone = skeletonAnimation.skeleton.Bones.Items[0];
+		Bone rootMotionBone = skeletonRootMotion.RootMotionBone;
+		bool rootMotionIsTopLevelBone = rootMotionBone == topLevelBone;
+
+		float lastPositionX = topLevelBone.GetLocalPosition().x;
+		float lastRootMotionBoneX = rootMotionBone.GetLocalPosition().x;
+		// with enabled root motion component the top level bone shall no longer change position.
+		for (int i = 0; i < 15; ++i) {
+			yield return null;
+			if (rootMotionIsTopLevelBone)
+				lastPositionX = ExpectUnchangedLocalBonePositionX(topLevelBone, lastPositionX);
+			else {
+				lastPositionX = ExpectDecreasingLocalBonePositionX(topLevelBone, lastPositionX);
+				lastRootMotionBoneX = ExpectUnchangedLocalBonePositionX(rootMotionBone, lastRootMotionBoneX);
+			}
+		}
+
+		// disabling the root motion component shall no longer reset the root motion bone
+		skeletonRootMotion.enabled = false;
+		for (int i = 0; i < 3; ++i) {
+			yield return null;
+			lastPositionX = ExpectIncreasingLocalBonePositionX(rootMotionBone, lastPositionX);
+		}
+	}
+
+	[UnityTest]
+	public IEnumerator Test03UpdateCallbacks () {
+		SetupLoadingPrefab("RootMotionTestPrefabRoot", "straight-walk");
+		float lastPositionX = skeletonTransform.position.x;
+
+		skeletonRootMotion.ProcessRootMotionOverride -= ProcessRootMotionNoOp;
+		skeletonRootMotion.ProcessRootMotionOverride += ProcessRootMotionNoOp;
+		skeletonRootMotion.disableOnOverride = true;
+		// with disableOnOverride it shall no longer change the transform
+		for (int i = 0; i < 3; ++i) {
+			yield return null;
+			lastPositionX = ExpectUnchangedPositionX(lastPositionX);
+		}
+
+		skeletonRootMotion.disableOnOverride = false;
+		// with disableOnOverride = false it shall again apply root motion to the transform
+		for (int i = 0; i < 3; ++i) {
+			yield return null;
+			lastPositionX = ExpectIncreasingPositionX(lastPositionX, Time.deltaTime * WalkRootMotionVelocity);
+		}
+	}
+
+	[UnityTest]
+	public IEnumerator Test04PhysicsUpdateCallbacks2D () {
+		return TestPhysicsUpdateCallbacks("straight-walk-rigidbody2d");
+	}
+
+	[UnityTest]
+	public IEnumerator Test05PhysicsUpdateCallbacks3D () {
+		return TestPhysicsUpdateCallbacks("straight-walk-rigidbody3d");
+	}
+
+	public IEnumerator TestPhysicsUpdateCallbacks (string gameObjectName) {
+		SetupLoadingPrefab("RootMotionTestPrefabRoot", gameObjectName);
+		float lastPositionX = skeletonTransform.position.x;
+
+		skeletonRootMotion.ProcessRootMotionOverride -= ProcessRootMotionNoOp;
+		skeletonRootMotion.ProcessRootMotionOverride += ProcessRootMotionNoOp;
+
+		skeletonRootMotion.PhysicsUpdateRootMotionOverride -= ProcessRootMotionNoOp;
+		skeletonRootMotion.PhysicsUpdateRootMotionOverride += ProcessRootMotionNoOp;
+		skeletonRootMotion.disableOnOverride = true;
+
+		Debug.Log("Testing physics update with animation timing InUpdate.");
+		skeletonAnimation.UpdateTiming = UpdateTiming.InUpdate;
+		yield return new WaitForFixedUpdate();
+		yield return null;
+		lastPositionX = skeletonTransform.position.x;
+		// a rigidbody is assigned, disableOnOverride shall disable applying root motion when PhysicsUpdateRootMotionOverride is set
+		for (int i = 0; i < 3; ++i) {
+			yield return new WaitForFixedUpdate();
+			yield return null;
+			lastPositionX = ExpectUnchangedPositionX(lastPositionX);
+		}
+
+		// same when using InFixedUpdate
+		Debug.Log("Testing physics update with animation timing InFixedUpdate.");
+		skeletonAnimation.UpdateTiming = UpdateTiming.InFixedUpdate;
+		yield return new WaitForFixedUpdate();
+		lastPositionX = skeletonTransform.position.x;
+		for (int i = 0; i < 3; ++i) {
+			yield return new WaitForFixedUpdate();
+			lastPositionX = ExpectUnchangedPositionX(lastPositionX);
+		}
+
+		Debug.Log("Testing physics update InFixedUpdate with disableOnOverride = false.");
+		Time.fixedDeltaTime = 0.5f;
+
+		skeletonRootMotion.disableOnOverride = false;
+		skeletonAnimation.UpdateTiming = UpdateTiming.InFixedUpdate;
+		yield return new WaitForFixedUpdate();
+		lastPositionX = skeletonTransform.position.x;
+		for (int i = 0; i < 3; ++i) {
+			yield return null;
+			lastPositionX = ExpectUnchangedPositionX(lastPositionX);
+			yield return new WaitForFixedUpdate();
+			lastPositionX = ExpectIncreasingPositionX(lastPositionX, Time.deltaTime * WalkRootMotionVelocity);
+		}
+	}
+
+	[UnityTest]
+	public IEnumerator Test06CallbackDistancesInUpdate2D () {
+		return TestCallbackDistancesInUpdate("straight-walk-rigidbody2d");
+	}
+
+	[UnityTest]
+	public IEnumerator Test07CallbackDistancesInUpdate3D () {
+		return TestCallbackDistancesInUpdate("straight-walk-rigidbody3d");
+	}
+
+	public IEnumerator TestCallbackDistancesInUpdate (string gameObjectName) {
+		SetupLoadingPrefab("RootMotionTestPrefabRoot", gameObjectName);
+		float lastPositionX = skeletonTransform.position.x;
+
+		Debug.Log("Testing physics update with animation timing InUpdate.");
+		skeletonAnimation.UpdateTiming = UpdateTiming.InUpdate;
+		skeletonRootMotion.disableOnOverride = true;
+
+		skeletonRootMotion.ProcessRootMotionOverride -= CumulateDelta;
+		skeletonRootMotion.ProcessRootMotionOverride += CumulateDelta;
+		skeletonRootMotion.PhysicsUpdateRootMotionOverride -= EndAndCompareCumulatedDelta;
+		skeletonRootMotion.PhysicsUpdateRootMotionOverride += EndAndCompareCumulatedDelta;
+
+		for (int i = 0; i < 30; ++i) {
+			yield return new WaitForFixedUpdate();
+			yield return null;
+		}
+
+		Debug.Log("Testing physics update animating InUpdate with very long fixedDeltaTime (physics timestep).");
+		Time.fixedDeltaTime = 0.5f;
+
+		skeletonRootMotion.disableOnOverride = false;
+		lastPositionX = skeletonTransform.position.x;
+		for (int i = 0; i < 6; ++i) { // only few iterations since WaitForFixedUpdate takes 0.5 seconds now!
+			yield return new WaitForFixedUpdate();
+			yield return null;
+		}
+	}
+
+	[UnityTest]
+	public IEnumerator Test08CallbackDistancesInFixedUpdate2D () {
+		return TestCallbackDistancesInFixedUpdate("straight-walk-rigidbody2d");
+	}
+
+	[UnityTest]
+	public IEnumerator Test09CallbackDistancesInFixedUpdate3D () {
+		return TestCallbackDistancesInFixedUpdate("straight-walk-rigidbody3d");
+	}
+
+	public IEnumerator TestCallbackDistancesInFixedUpdate (string gameObjectName) {
+		SetupLoadingPrefab("RootMotionTestPrefabRoot", gameObjectName);
+		float lastPositionX = skeletonTransform.position.x;
+
+		Debug.Log("Testing physics update with animation timing InFixedUpdate.");
+		skeletonAnimation.UpdateTiming = UpdateTiming.InFixedUpdate;
+		skeletonRootMotion.disableOnOverride = true;
+
+		skeletonRootMotion.ProcessRootMotionOverride -= CumulateDelta;
+		skeletonRootMotion.ProcessRootMotionOverride += CumulateDelta;
+		skeletonRootMotion.PhysicsUpdateRootMotionOverride -= EndAndCompareCumulatedDelta;
+		skeletonRootMotion.PhysicsUpdateRootMotionOverride += EndAndCompareCumulatedDelta;
+
+		// a rigidbody is assigned, disableOnOverride shall disable applying root motion when PhysicsUpdateRootMotionOverride is set
+		for (int i = 0; i < 30; ++i) {
+			yield return new WaitForFixedUpdate();
+			yield return null;
+		}
+
+		Debug.Log("Testing physics update animating InFixedUpdate with very long fixedDeltaTime (physics timestep).");
+		Time.fixedDeltaTime = 0.5f;
+
+		skeletonRootMotion.disableOnOverride = false;
+		lastPositionX = skeletonTransform.position.x;
+		for (int i = 0; i < 6; ++i) { // only few iterations since WaitForFixedUpdate takes 0.5 seconds now!
+			yield return new WaitForFixedUpdate();
+			yield return null;
+		}
+	}
+
+	[UnityTest]
+	public IEnumerator Test10DeltaCompensation () {
+		SetupLoadingPrefab("RootMotionTestPrefabRoot", "jump-rootmotion");
+		Transform jumpTarget = GameObject.Find("jump-target").transform;
+		Time.timeScale = 3;
+		skeletonAnimation.AnimationState.Complete += OnLoopComplete;
+		yield return null;
+
+		for (int i = 0; i < 600 && loopsComplete == 0; ++i) {
+			// note: done via existing example component now.
+			// Vector3 toTarget = jumpTarget.position - skeletonTransform.position;
+			// skeletonRootMotion.AdjustRootMotionToDistance(toTarget);
+			yield return null;
+		}
+		Assert.AreEqual(1, loopsComplete);
+		Assert.AreEqual(jumpTarget.transform.position.x, skeletonTransform.position.x, PositionEpsilon);
+	}
+
+	public void OnLoopComplete (TrackEntry trackEntry) {
+		++loopsComplete;
+	}
+
+	GameObject SetupLoadingPrefab (string prefabAssetName, string skeletonObjectName) {
+		GameObject prefab = Resources.Load<GameObject>(prefabAssetName);
+		rootGameObject = MonoBehaviour.Instantiate(prefab);
+		Assert.IsNotNull(rootGameObject);
+
+		GameObject straightWalkObject = GameObject.Find(skeletonObjectName);
+		Assert.IsNotNull(straightWalkObject);
+
+		skeletonTransform = straightWalkObject.transform;
+		skeletonAnimation = straightWalkObject.GetComponent<SkeletonAnimation>();
+		skeletonRootMotion = skeletonAnimation.GetComponent<SkeletonRootMotion>();
+		Assert.IsNotNull(skeletonAnimation);
+		Assert.IsNotNull(skeletonRootMotion);
+		return rootGameObject;
+	}
+
+	[UnitySetUp]
+	public IEnumerator SetUp () {
+		savedFixedTimeStep = Time.fixedDeltaTime;
+		translationDeltaSum = Vector2.zero;
+		rotationDeltaSum = 0f;
+		yield return null;
+	}
+
+	[UnityTearDown]
+	public IEnumerator TearDown () {
+		Time.timeScale = 1;
+		Time.fixedDeltaTime = savedFixedTimeStep;
+		GameObject.Destroy(rootGameObject);
+		yield return null;
+	}
+
+	void ProcessRootMotionNoOp (SkeletonRootMotionBase component, Vector2 translation, float rotation) {
+	}
+
+	void CumulateDelta (SkeletonRootMotionBase component, Vector2 translationDelta, float rotationDelta) {
+		translationDeltaSum += translationDelta;
+		rotationDeltaSum += rotationDelta;
+		Debug.Log("  Accumulating movement delta for later comparison. Single delta: " + translationDelta);
+	}
+
+	void EndAndCompareCumulatedDelta (SkeletonRootMotionBase component, Vector2 cumulatedTranslation, float cumulatedRotation) {
+		Debug.Log("  Cumulated movement delta from callback: " + cumulatedTranslation);
+		Assert.AreEqual(translationDeltaSum.x, cumulatedTranslation.x);
+		Assert.AreEqual(translationDeltaSum.y, cumulatedTranslation.y);
+		Assert.AreEqual(rotationDeltaSum, cumulatedRotation);
+
+		translationDeltaSum = Vector2.zero;
+		rotationDeltaSum = 0f;
+		Debug.Log("  Successfully compared cumulated delta.");
+	}
+
+	float ExpectUnchangedPositionX (float lastPositionX) {
+		float positionX = skeletonTransform.position.x;
+		Assert.AreEqual(positionX, lastPositionX);
+		return positionX;
+	}
+
+	float ExpectIncreasingPositionX (float lastPositionX, float difference) {
+		float positionX = skeletonTransform.position.x;
+		Assert.Greater(positionX, lastPositionX);
+		//Debug.Log(string.Format("positionX {0}, lastPositionX {1}, deltatime {2}.", positionX, lastPositionX, Time.deltaTime));
+		Assert.AreEqual(lastPositionX + difference, positionX, PositionEpsilon);
+		return positionX;
+	}
+
+	float ExpectUnchangedLocalBonePositionX (Bone bone, float lastPositionX) {
+		float positionX = bone.GetLocalPosition().x;
+		Assert.AreEqual(positionX, lastPositionX);
+		return positionX;
+	}
+
+	float ExpectIncreasingLocalBonePositionX (Bone bone, float lastPositionX) {
+		float positionX = bone.GetLocalPosition().x;
+		Assert.Greater(positionX, lastPositionX);
+		return positionX;
+	}
+
+	float ExpectDecreasingLocalBonePositionX (Bone bone, float lastPositionX) {
+		float positionX = bone.GetLocalPosition().x;
+		Assert.Less(positionX, lastPositionX);
+		return positionX;
+	}
+}

spine-unity/Modules/com.esotericsoftware.spine.spine-unity-tests/Tests/playmode-tests/src/RootMotionTests.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e047bb9d2c2a66b4392a0589cb3a7aa8
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

spine-unity/Modules/com.esotericsoftware.spine.timeline/Runtime/SpineAnimationState/SpineAnimationStateMixerBehaviour.cs

@@ -51,6 +51,7 @@ namespace Spine.Unity.Playables {
 		bool isPaused = false;
 		TrackEntry pausedTrackEntry;
 		float previousTimeScale = 1;
+		float rootPlayableSpeed = 1;
 
 		TrackEntry timelineStartedTrackEntry;
 
@@ -109,6 +110,18 @@ namespace Spine.Unity.Playables {
 			}
 		}
 
+		private void AdjustTrackEntryTimeScale (Playable playable, int input, TrackEntry currentTrackEntry) {
+			if (currentTrackEntry == null)
+				return;
+			ScriptPlayable<SpineAnimationStateBehaviour> clipPlayable = (ScriptPlayable<SpineAnimationStateBehaviour>)playable.GetInput(input);
+			float clipSpeed = (float)clipPlayable.GetSpeed();
+			SpineAnimationStateBehaviour clipData = clipPlayable.GetBehaviour();
+			if (clipData != null && clipData.animationReference != null
+				&& currentTrackEntry.Animation == clipData.animationReference.Animation) {
+				currentTrackEntry.TimeScale = clipSpeed * rootPlayableSpeed;
+			}
+		}
+
 		// NOTE: This function is called at runtime and edit time. Keep that in mind when setting the values of properties.
 		public override void ProcessFrame (Playable playable, FrameData info, object playerData) {
 			var skeletonAnimation = playerData as SkeletonAnimation;
@@ -129,7 +142,9 @@ namespace Spine.Unity.Playables {
 			}
 
 			int inputCount = playable.GetInputCount();
-			float rootSpeed = GetRootPlayableSpeed(playable);
+			float previousRootSpeed = rootPlayableSpeed;
+			rootPlayableSpeed = GetRootPlayableSpeed(playable);
+			bool rootSpeedChanged = previousRootSpeed != rootPlayableSpeed;
 
 			// Ensure correct buffer size.
 			if (this.lastInputWeights == null || this.lastInputWeights.Length < inputCount) {
@@ -151,9 +166,14 @@ namespace Spine.Unity.Playables {
 					anyClipPlaying = true;
 				lastInputWeights[i] = inputWeight;
 
-				if (clipStarted && numStartingClips < 2) {
+				if (clipStarted) {
-					ScriptPlayable<SpineAnimationStateBehaviour> clipPlayable = (ScriptPlayable<SpineAnimationStateBehaviour>)playable.GetInput(i);
+					if (numStartingClips < 2) {
-					startingClips[numStartingClips++] = clipPlayable;
+						ScriptPlayable<SpineAnimationStateBehaviour> clipPlayable = (ScriptPlayable<SpineAnimationStateBehaviour>)playable.GetInput(i);
+						startingClips[numStartingClips++] = clipPlayable;
+					}
+				} else if (rootSpeedChanged) {
+					TrackEntry currentEntry = state.GetCurrent(trackIndex);
+					AdjustTrackEntryTimeScale(playable, i, currentEntry);
 				}
 			}
 			// unfortunately order of clips can be wrong when two start at the same time, we have to sort clips
@@ -192,14 +212,14 @@ namespace Spine.Unity.Playables {
 						float clipSpeed = (float)clipPlayable.GetSpeed();
 						trackEntry.EventThreshold = clipData.eventThreshold;
 						trackEntry.DrawOrderThreshold = clipData.drawOrderThreshold;
-						trackEntry.TrackTime = (float)clipPlayable.GetTime() * clipSpeed * rootSpeed;
+						trackEntry.TrackTime = (float)clipPlayable.GetTime() * clipSpeed * rootPlayableSpeed;
-						trackEntry.TimeScale = clipSpeed * rootSpeed;
+						trackEntry.TimeScale = clipSpeed * rootPlayableSpeed;
 						trackEntry.AttachmentThreshold = clipData.attachmentThreshold;
 						trackEntry.HoldPrevious = clipData.holdPrevious;
 						trackEntry.Alpha = clipData.alpha;
 
 						if (clipData.customDuration)
-							trackEntry.MixDuration = customMixDuration / rootSpeed;
+							trackEntry.MixDuration = customMixDuration / rootPlayableSpeed;
 
 						timelineStartedTrackEntry = trackEntry;
 					}

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/Shaders/Include/Spine-Input-Outline-URP.hlsl

@@ -17,6 +17,7 @@ float4 _OutlineColor;
 float4 _MainTex_TexelSize;
 float _ThresholdEnd;
 float _OutlineSmoothness;
+float _OutlineOpaqueAlpha;
 float _OutlineMipLevel;
 int _OutlineReferenceTexWidth;
 CBUFFER_END

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/Shaders/Include/Spine-Outline-Pass-URP.hlsl

@@ -32,11 +32,11 @@ VertexOutput vertOutline(VertexInput v) {
 	return o;
 }
 
-float4 fragOutline(VertexOutput i) : SV_Target{
+float4 fragOutline(VertexOutput i) : SV_Target {
 
 	float4 texColor = computeOutlinePixel(_MainTex, _MainTex_TexelSize.xy, i.uv, i.vertexColorAlpha,
 		_OutlineWidth, _OutlineReferenceTexWidth, _OutlineMipLevel,
-		_OutlineSmoothness, _ThresholdEnd, _OutlineColor);
+		_OutlineSmoothness, _ThresholdEnd, _OutlineOpaqueAlpha, _OutlineColor);
 	return texColor;
 }
 

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/Shaders/Outline/Spine-Skeleton-OutlineOnly-URP.shader

@@ -11,6 +11,7 @@ Shader "Universal Render Pipeline/Spine/Outline/Skeleton-OutlineOnly" {
 		[HideInInspector] _ThresholdEnd("Outline Threshold", Range(0,1)) = 0.25
 		[HideInInspector] _OutlineSmoothness("Outline Smoothness", Range(0,1)) = 1.0
 		[HideInInspector][MaterialToggle(_USE8NEIGHBOURHOOD_ON)] _Use8Neighbourhood("Sample 8 Neighbours", Float) = 1
+		[HideInInspector] _OutlineOpaqueAlpha("Opaque Alpha", Range(0,1)) = 1.0
 		[HideInInspector] _OutlineMipLevel("Outline Mip Level", Range(0,3)) = 0
 	}
 

spine-unity/Modules/com.esotericsoftware.spine.urp-shaders/package.json

@@ -2,7 +2,7 @@
   "name": "com.esotericsoftware.spine.urp-shaders",
   "displayName": "Spine Universal RP Shaders",
   "description": "This plugin provides universal render pipeline (URP) shaders for the spine-unity runtime.\n\nPrerequisites:\nIt requires a working installation of the spine-unity runtime, version 4.1.\n(See http://esotericsoftware.com/git/spine-runtimes/spine-unity)",
-  "version": "4.1.3",
+  "version": "4.1.4",
   "unity": "2019.3",
   "author": {
     "name": "Esoteric Software",