chore(release): 4.1.3 [skip ci]

## [4.1.3](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.2...4.1.3) (2022-06-28)

### Bug Fixes

* error on drag prefab to scene ([fa2f867](fa2f867bca)), closes [#211](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/211)

CHANGELOG.md

@@ -1,3 +1,39 @@
+## [4.1.3](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.2...4.1.3) (2022-06-28)
+
+
+### Bug Fixes
+
+* error on drag prefab to scene ([fa2f867](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/fa2f867bcaff437bb9420da1abcef970cdb09ade)), closes [#211](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/211)
+
+## [4.1.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.1...4.1.2) (2022-06-27)
+
+
+### Bug Fixes
+
+* error on editor ([8034228](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/80342287137c07d58a7492875a401d80cb134073)), closes [#210](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/210)
+* incorrect position of world space trail particles ([fb7f308](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/fb7f308f092db8a1512383857b80110cd626ecf9)), closes [#209](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/209)
+
+## [4.1.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.0...4.1.1) (2022-06-25)
+
+
+### Bug Fixes
+
+* add absolute mode toggle to overlay window ([48d1994](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/48d1994f5f8751b707b6ef7695b552df731bece9))
+
+# [4.1.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.0.1...4.1.0) (2022-06-25)
+
+
+### Features
+
+* add relative/absolute particle position mode ([1879ac8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/1879ac8c538778e386e68cfc989a6f4f974043ca)), closes [#205](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/205)
+
+## [4.0.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.0.0...4.0.1) (2022-06-24)
+
+
+### Bug Fixes
+
+* overlays do not exist in Unity 2019.2-2021.1 ([cd8e037](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/cd8e0372b63bb6feaaf053518013a641bc7e65ac)), closes [#207](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/207) [#208](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/208)
+
 # [4.0.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/3.3.12...4.0.0) (2022-06-21)
 
 

LICENSE.md

@@ -1,4 +1,4 @@
-Copyright 2018 mob-sakai
+Copyright 2018-2022 mob-sakai
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

README.md

@@ -65,8 +65,10 @@ Compares this "Baking mesh" approach with the conventional approach:
 * [4.0.0+] Adaptive scaling for UI
 * [4.0.0+] Mesh sharing group to improve performance  
 ![](https://user-images.githubusercontent.com/12690315/174311048-c882df81-6c34-4eba-b0aa-5645457692f1.gif)
-* [4.0.0+] particle attractor component  
+* [4.0.0+] Particle attractor component  
 ![](https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif)
+* [4.1.0+] Relative/Absolute particle position mode  
+![](https://user-images.githubusercontent.com/12690315/175751579-5a2357e8-2ecf-4afd-83c8-66e9771bde39.gif)
 
 
 <br><br><br><br>
@@ -168,6 +170,7 @@ Unity 2018.2 supports embedded packages.
 | Scale | Scale the rendering.<br>When the `3D` toggle is enabled, 3D scale (x,y,z) is supported. |
 | Animatable Properties | If you want update material properties (e.g. `_MainTex_ST`, `_Color`) in AnimationClip, use this to mark the changes. |
 | Mesh Sharing | Particle simulation results are shared within the same group.<br>A large number of the same effects can be displayed with a small load.<br>When the `Random` toggle is enabled, it will be grouped randomaly. |
+| Absolute Mode | The particles will be emitted at the ParticleSystem position.<br>Move the UIParticle/ParticleSystem to move the particle. |
 | Rendering Order | The ParticleSystems to be rendered.<br>You can change the rendering order and the materials. |
 
 NOTE: Press `Refresh` button to reconstruct rendering order based on children ParticleSystem's sorting order and z position.

Samples~/Demo/Materials/UIParticle_Demo_Dot.mat

@@ -0,0 +1,84 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!21 &2100000
+Material:
+  serializedVersion: 6
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: UIParticle_Demo_Dot
+  m_Shader: {fileID: 10770, guid: 0000000000000000f000000000000000, type: 0}
+  m_ShaderKeywords: 
+  m_LightmapFlags: 4
+  m_EnableInstancingVariants: 0
+  m_DoubleSidedGI: 0
+  m_CustomRenderQueue: 3001
+  stringTagMap: {}
+  disabledShaderPasses: []
+  m_SavedProperties:
+    serializedVersion: 3
+    m_TexEnvs:
+    - _BumpMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _DetailAlbedoMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _DetailMask:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _DetailNormalMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _EmissionMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _MainTex:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _MetallicGlossMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _OcclusionMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    - _ParallaxMap:
+        m_Texture: {fileID: 0}
+        m_Scale: {x: 1, y: 1}
+        m_Offset: {x: 0, y: 0}
+    m_Floats:
+    - _BumpScale: 1
+    - _ColorMask: 15
+    - _Cutoff: 0.5
+    - _DetailNormalMapScale: 1
+    - _DstBlend: 0
+    - _GlossMapScale: 1
+    - _Glossiness: 0.5
+    - _GlossyReflections: 1
+    - _Metallic: 0
+    - _Mode: 0
+    - _OcclusionStrength: 1
+    - _Parallax: 0.02
+    - _SmoothnessTextureChannel: 0
+    - _SpecularHighlights: 1
+    - _SrcBlend: 1
+    - _Stencil: 0
+    - _StencilComp: 8
+    - _StencilOp: 0
+    - _StencilReadMask: 255
+    - _StencilWriteMask: 255
+    - _UVSec: 0
+    - _UseUIAlphaClip: 0
+    - _ZWrite: 1
+    m_Colors:
+    - _Color: {r: 1, g: 1, b: 1, a: 1}
+    - _EmissionColor: {r: 0, g: 0, b: 0, a: 1}

Samples~/Demo/Materials/UIParticle_Demo_Dot.mat.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: b35a584a784274746b87deef91c15c5c
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 2100000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Samples~/Demo/Scripts/UIElementDragger.cs

@@ -14,6 +14,7 @@ public class UIElementDragger : MonoBehaviour, IBeginDragHandler, IDragHandler,
     private Canvas canvas;
     public Target m_Target;
     public Transform m_CustomTarget;
+    public bool ex2;
 
     private void OnEnable()
     {
@@ -37,6 +38,8 @@ public class UIElementDragger : MonoBehaviour, IBeginDragHandler, IDragHandler,
                 rectTransform.localPosition += delta;
                 if (m_CustomTarget)
                 {
+                    if (ex2)
+                        delta.Scale(canvas.rootCanvas.transform.localScale);
                     m_CustomTarget.localPosition += delta;
                 }
                 break;

Scripts/Editor/UIParticleEditor.cs

@@ -62,6 +62,7 @@ namespace Coffee.UIExtensions
         private SerializedProperty m_MeshSharing;
         private SerializedProperty m_GroupId;
         private SerializedProperty m_GroupMaxId;
+        private SerializedProperty m_AbsoluteMode;
 
 
         private ReorderableList _ro;
@@ -85,15 +86,21 @@ namespace Coffee.UIExtensions
         static void Init()
         {
 #if !UNITY_2021_2_OR_NEWER
-            // static void Window(GUIContent title, WindowFunction sceneViewFunc, int order, UnityEngine.Object target, WindowDisplayOption option)
             var miSceneViewOverlayWindow = Type.GetType("UnityEditor.SceneViewOverlay, UnityEditor")
                 .GetMethods(BindingFlags.Public | BindingFlags.Static)
-                .First(x => x.Name == "Window" && x.GetParameters().Length == 5);
+                .First(x => x.Name == "Window" && 5 <= x.GetParameters().Length);
             var windowFunction = (Action<UnityEngine.Object, SceneView>)WindowFunction;
             var windowFunctionType = Type.GetType("UnityEditor.SceneViewOverlay+WindowFunction, UnityEditor");
             var windowFunctionDelegate = Delegate.CreateDelegate(windowFunctionType, windowFunction.Method);
             var windowTitle = new GUIContent(ObjectNames.NicifyVariableName(typeof(UIParticle).Name));
+#if UNITY_2019_2_OR_NEWER
+            //public static void Window(GUIContent title, WindowFunction sceneViewFunc, int order, Object target, WindowDisplayOption option, EditorWindow window = null)
+            var sceneViewArgs = new object[] { windowTitle, windowFunctionDelegate, 599, null, 2, null };
+#else
+            //public static void Window(GUIContent title, WindowFunction sceneViewFunc, int order, Object target, WindowDisplayOption option)
             var sceneViewArgs = new object[] { windowTitle, windowFunctionDelegate, 599, null, 2 };
+#endif
+
 #if UNITY_2019_1_OR_NEWER
             SceneView.duringSceneGui += _ => miSceneViewOverlayWindow.Invoke(null, sceneViewArgs);
 #else
@@ -144,6 +151,7 @@ namespace Coffee.UIExtensions
             m_MeshSharing = serializedObject.FindProperty("m_MeshSharing");
             m_GroupId = serializedObject.FindProperty("m_GroupId");
             m_GroupMaxId = serializedObject.FindProperty("m_GroupMaxId");
+            m_AbsoluteMode = serializedObject.FindProperty("m_AbsoluteMode");
 
             var sp = serializedObject.FindProperty("m_Particles");
             _ro = new ReorderableList(sp.serializedObject, sp, true, true, true, true);
@@ -196,12 +204,10 @@ namespace Coffee.UIExtensions
             };
 
             // On select UIParticle, refresh particles.
-            if (!Application.isPlaying)
+            foreach (UIParticle t in targets)
             {
-                foreach (UIParticle t in targets)
-                {
-                    t.RefreshParticles(t.particles);
-                }
+                if (Application.isPlaying || PrefabUtility.GetPrefabAssetType(t) != PrefabAssetType.NotAPrefab) continue;
+                t.RefreshParticles(t.particles);
             }
         }
 
@@ -259,6 +265,9 @@ namespace Coffee.UIExtensions
                 }
             }
 
+            // Absolute Mode
+            EditorGUILayout.PropertyField(m_AbsoluteMode);
+
             // Target ParticleSystems.
             _ro.DoLayoutList();
 
@@ -421,12 +430,14 @@ namespace Coffee.UIExtensions
                 if (s_SerializedObject.targetObjects.Any(x => !x)) return;
 
                 s_SerializedObject.Update();
-                GUILayout.BeginHorizontal(GUILayout.Width(220f));
-                var labelWidth = EditorGUIUtility.labelWidth;
-                EditorGUIUtility.labelWidth = 60;
-                _xyzMode = DrawFloatOrVector3Field(s_SerializedObject.FindProperty("m_Scale3D"), _xyzMode);
-                EditorGUIUtility.labelWidth = labelWidth;
-                GUILayout.EndHorizontal();
+                using (new EditorGUILayout.VerticalScope(GUILayout.Width(220f)))
+                {
+                    var labelWidth = EditorGUIUtility.labelWidth;
+                    EditorGUIUtility.labelWidth = 100;
+                    _xyzMode = DrawFloatOrVector3Field(s_SerializedObject.FindProperty("m_Scale3D"), _xyzMode);
+                    EditorGUILayout.PropertyField(s_SerializedObject.FindProperty("m_AbsoluteMode"));
+                    EditorGUIUtility.labelWidth = labelWidth;
+                }
                 s_SerializedObject.ApplyModifiedProperties();
             }
             catch

Scripts/UIParticle.cs

@@ -54,6 +54,10 @@ namespace Coffee.UIExtensions
         [SerializeField]
         private int m_GroupMaxId = 0;
 
+        [SerializeField]
+        [Tooltip("The particles will be emitted at the ParticleSystem position.\nMove the UIParticle/ParticleSystem to move the particle.")]
+        private bool m_AbsoluteMode = false;
+
         private List<UIParticleRenderer> m_Renderers = new List<UIParticleRenderer>();
 
 #if !SERIALIZE_FIELD_MASKABLE
@@ -112,6 +116,17 @@ namespace Coffee.UIExtensions
             }
         }
 
+        /// <summary>
+        /// Absolute particle position mode.
+        /// The particles will be emitted at the ParticleSystem position.
+        /// Move the UIParticle/ParticleSystem to move the particle.
+        /// </summary>
+        public bool absoluteMode
+        {
+            get { return m_AbsoluteMode; }
+            set { m_AbsoluteMode = value; }
+        }
+
         internal bool useMeshSharing
         {
             get { return m_MeshSharing != MeshSharing.None; }

Scripts/UIParticleRenderer.cs

@@ -249,7 +249,15 @@ namespace Coffee.UIExtensions
             Profiler.BeginSample("[UIParticleRenderer] Combine Mesh");
             if (_parent.canSimulate)
             {
-                s_CombineInstances[0].transform = canvasRenderer.transform.worldToLocalMatrix * GetWorldMatrix(psPos, scale);
+                if (_parent.absoluteMode)
+                {
+                    s_CombineInstances[0].transform = canvasRenderer.transform.worldToLocalMatrix * GetWorldMatrix(psPos, scale);
+                }
+                else
+                {
+                    var diff = _particleSystem.transform.position - _parent.transform.position;
+                    s_CombineInstances[0].transform = canvasRenderer.transform.worldToLocalMatrix * Matrix4x4.Translate(diff.GetScaled(scale - Vector3.one)) * GetWorldMatrix(psPos, scale);
+                }
                 workerMesh.CombineMeshes(s_CombineInstances, true, true);
 
                 workerMesh.RecalculateBounds();
@@ -453,14 +461,6 @@ namespace Coffee.UIExtensions
                 _prewarm = false;
             }
 
-            // Normal simulation for non-scaling or local spacing.
-            var isScaling = scale != Vector3.one;
-            if (!isScaling || _particleSystem.GetActualSimulationSpace() == ParticleSystemSimulationSpace.Local)
-            {
-                _particleSystem.Simulate(deltaTime, false, false, false);
-                return;
-            }
-
             // Emitted particles found. 
             if (_prevParticleCount != _particleSystem.particleCount)
             {

Scripts/UIParticleUpdater.cs

@@ -62,7 +62,7 @@ namespace Coffee.UIExtensions
             for (var i = 0; i < s_ActiveParticles.Count; i++)
             {
                 var uip = s_ActiveParticles[i];
-                if (!uip.isPrimary || s_UpdatedGroupIds.Contains(uip.groupId)) continue;
+                if (!uip || !uip.canvas || !uip.isPrimary || s_UpdatedGroupIds.Contains(uip.groupId)) continue;
 
                 s_UpdatedGroupIds.Add(uip.groupId);
                 uip.UpdateTransformScale();
@@ -73,6 +73,8 @@ namespace Coffee.UIExtensions
             for (var i = 0; i < s_ActiveParticles.Count; i++)
             {
                 var uip = s_ActiveParticles[i];
+                if (!uip || !uip.canvas) continue;
+
                 uip.UpdateTransformScale();
 
                 if (!uip.useMeshSharing)
@@ -97,7 +99,10 @@ namespace Coffee.UIExtensions
             // UpdateParticleCount.
             for (var i = 0; i < s_ActiveParticles.Count; i++)
             {
-                s_ActiveParticles[i].UpdateParticleCount();
+                var uip = s_ActiveParticles[i];
+                if (!uip || !uip.canvas) continue;
+
+                uip.UpdateParticleCount();
             }
         }
 

package.json

@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This plugin provide a component to render particle effect for uGUI.\nThe particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.",
-  "version": "4.0.0",
+  "version": "4.1.3",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {