chore(release): 4.10.7 [skip ci]

## [4.10.7](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.6...v4.10.7) (2025-01-14)

### Bug Fixes

* editor crashed on exit play mode (editor, windows) ([47ee45c](47ee45cbbe)), closes [#351](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/351)

CHANGELOG.md

@@ -1,42 +1,144 @@
-# [5.0.0-preview.3](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v5.0.0-preview.2...v5.0.0-preview.3) (2024-06-21)
+## [4.10.7](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.6...v4.10.7) (2025-01-14)
 
 
 ### Bug Fixes
 
-* generated baking-camera object remains in the prefab or scene ([fd66928](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/fd66928efe584aeb4f6347b9a9dca97d9512eb88))
+* editor crashed on exit play mode (editor, windows) ([47ee45c](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/47ee45cbbe651a8f87ca2b8a3948f8b88db8211e)), closes [#351](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/351)
 
-# [5.0.0-preview.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v5.0.0-preview.1...v5.0.0-preview.2) (2024-06-20)
+## [4.10.6](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.5...v4.10.6) (2025-01-03)
 
 
 ### Bug Fixes
 
-* 'Resource ID out of range in GetResource' error in overlay rendering mode ([ff78b6f](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/ff78b6fe32ceed8ddad50e63dcb7a202eab95266)), closes [#308](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/308)
+* sub-emitter particles may not render correctly in certain scenarios ([8276684](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/8276684c3b1646f0490ed64557547ba15281664a)), closes [#348](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/348)
-* `UIParticle.transform.localScale` does not scale particles ([491ee7b](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/491ee7b0c3e528e1e577ae5ff2588d7c3bd8ecdb)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
+* sub-emitter's `inherit velocity` module doubles at runtime ([67de3d1](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/67de3d1bd3e16dc9b564625cb990c53d75769506)), closes [#349](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/349)
-* despite not using the size module, particles become smaller based on their z position ([c96ddf2](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/c96ddf293e855f7ebccaaaf3b112092955545e61)), closes [#316](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/316)
+
-* the ParticleSystem's localPosition drifts at certain scales due to floating-point precision issues ([a9c2b19](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/a9c2b19edf00e1c86c928ef23405906952ede852)), closes [#299](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/299) [#312](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/312)
+## [4.10.5](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.4...v4.10.5) (2024-12-23)
-* UIParticle is scaled by canvas size even when `AutoScalingMode.None` and `ScalingMode.Local` ([63b24d8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/63b24d8a8b478b3165733ece3eec524e88b28855)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
+
-* UIParticle is scaled incorrectly with nested canvases ([c95d8c6](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/c95d8c6b1774396ff252d13121ad32a3cab0fe5c)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
+
+### Bug Fixes
+
+* '3D' scale toggle in the inspector does not keep on reload ([934f4b8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/934f4b8f1c61f8ff20228d0ebcea9f636a3758ed)), closes [#346](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/346)
+
+## [4.10.4](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.3...v4.10.4) (2024-12-19)
+
+
+### Bug Fixes
+
+* rendering issues when playing with opening a prefab stage ([95235a9](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/95235a929b82cf681365ed6eba837d857f83e3d2)), closes [#345](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/345)
+
+## [4.10.3](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.2...v4.10.3) (2024-11-20)
+
+
+### Bug Fixes
+
+* if not configured as a preloaded asset, the project settings asset will be regenerated ([abe0948](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/abe09485f65dd4efd18e74675e752e0213bdf3be)), closes [#342](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/342)
+
+## [4.10.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.1...v4.10.2) (2024-11-01)
+
+
+### Bug Fixes
+
+* trail incorrect offset ([afe00a1](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/afe00a1dde80eb1c0a7bb668b75f4c3733d3fa43)), closes [#335](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/335)
+
+## [4.10.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.0...v4.10.1) (2024-09-29)
+
+
+### Bug Fixes
+
+* mainTex will be ignored ([2ee69d0](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/2ee69d04245fabce185f67dc9bd68c870e556564))
+
+# [4.10.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.9.1...v4.10.0) (2024-09-29)
+
+
+### Bug Fixes
+
+* component icon is not set ([5ff6ec8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/5ff6ec815a174de5d3f16d424f1204c60912a8d8))
 
 
 ### Features
 
-* remove overlay window (editor) ([fc3fbdd](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/fc3fbdd230595ad3471875ec6fec384a3dad0d17))
+* add project settings ([1ce4e31](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/1ce4e31a9681bf1a201d2723c8d97e07ecc16592))
-* reset previous position on start play for world space simulation ([e741584](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/e7415845074143abae23e3ae7eedc767a01d020d)), closes [#303](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/303)
-* restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` ([dfb94f4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/dfb94f4badfb3035a4374579c53293460b4fd946))
 
-# [5.0.0-preview.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.6...v5.0.0-preview.1) (2024-05-23)
+## [4.9.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.9.0...v4.9.1) (2024-08-07)
+
+
+### Bug Fixes
+
+* ParticleSystem trails gain offset on parent canvas change ([2a1cd50](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/2a1cd502b452b5b56edf8bcfe91adf99d1bb5147)), closes [#323](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/323)
+
+# [4.9.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.8.1...v4.9.0) (2024-07-18)
 
 
 ### Features
 
-* add project settings for UIParticle ([b6e6185](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/b6e6185c521fef0f118f61cfdfdac07b87555c01))
+* ParticleAttractor supports multiple ParticleSystems ([3834780](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/3834780fdb43443fe6e1ef89df54d26a24d62a91))
-* change the default value of `UIParticle.scale` from `10` to `1` ([1b3c0f9](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/1b3c0f92dcc6a1974d1ea074821e5264200e9711)), closes [#310](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/310)
+
-* UIParticle no longer inherits from MaskableGraphic ([b6d921b](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/b6d921b3e47f749b5028d22b0e89b6eb3a1af7de))
+## [4.8.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.8.0...v4.8.1) (2024-06-27)
 
 
-### BREAKING CHANGES
+### Bug Fixes
 
-* Some members inherited from MaskableGraphic will no longer be available.
+* remove debug code ([669deb4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/669deb41d4ac589d9db93b29bc8e95383e7f28a5))
+
+# [4.8.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.7.2...v4.8.0) (2024-06-27)
+
+
+### Bug Fixes
+
+* generated baking-camera object remains in the prefab or scene (again) ([de35cba](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/de35cba34c6312c1405ed522e9927c620c78e72d))
+* SetParticleSystemInstance/Prefab APIs destroy generated objects ([ae3f3a8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/ae3f3a8e62cc733420354d237ab765ac777127c8))
+
+
+### Features
+
+* add 'custom view' option. ([a703c29](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/a703c2921ca08c2280d0c8fde01e4c0b33b5c69e))
+* remove overlay window (editor) ([8358170](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/835817049f4fcf00dd2bf98dbada14f041ad3544))
+* restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` (again) ([88a970d](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/88a970d93a2b69cf011d86bd1807569e90538e0e))
+* the rendering order list in inspector is now more compact ([be90172](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/be901724e064befacf617f4940b0331e1d31e1ca))
+
+## [4.7.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.7.1...v4.7.2) (2024-06-21)
+
+
+### Bug Fixes
+
+* generated baking-camera object remains in the prefab or scene ([0bb8438](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/0bb843830197d8c1252232928becc211c0ada08d))
+
+## [4.7.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.7.0...v4.7.1) (2024-06-20)
+
+
+### Bug Fixes
+
+* despite not using the size module, particles become smaller based on their z position ([a8ed6e6](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/a8ed6e68584e1d9e45ed852eefcc03979ea7e0e1)), closes [#316](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/316)
+
+# [4.7.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.8...v4.7.0) (2024-06-19)
+
+
+### Bug Fixes
+
+* `UIParticle.transform.localScale` does not scale particles ([1d40e24](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/1d40e24c742741e97f03c55468ccb1e505341133)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
+* UIParticle is scaled by canvas size even when `AutoScalingMode.None` and `ScalingMode.Local` ([54a4b1c](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/54a4b1cdfd06400c7be89c1ee704bb42a659c7c2)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
+* UIParticle is scaled incorrectly with nested canvases ([f26920f](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/f26920f9825547222a4afbb31cc5dc5a002c3e9b)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
+
+
+### Features
+
+* reset previous position on start play for world space simulation ([3880484](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/3880484ce5190c42fc79c81d0b69e3fbeda09dd0)), closes [#303](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/303)
+* restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` ([5505247](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/5505247a94a929ff89635fde512a9b95691e0043))
+
+## [4.6.8](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.7...v4.6.8) (2024-06-14)
+
+
+### Bug Fixes
+
+* 'Resource ID out of range in GetResource' error in overlay rendering mode ([05286ce](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/05286cedfd17b1a0cb90a5e918513644f47cd831)), closes [#308](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/308)
+
+## [4.6.7](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.6...v4.6.7) (2024-05-24)
+
+
+### Bug Fixes
+
+* the ParticleSystem's localPosition drifts at certain scales due to floating-point precision issues ([e924eb4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/e924eb45968a112347471cabaeabc274e4c37ce4)), closes [#299](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/299) [#312](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/312)
 
 ## [4.6.6](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.5...v4.6.6) (2024-05-23)
 

Editor/AnimatablePropertyEditor.cs

@@ -31,35 +31,35 @@ namespace Coffee.UIExtensions
             }
             else
             {
-                result.Aggregate(s_Sb, (a, b) => s_Sb.AppendFormat("{0}, ", b));
+                result.Aggregate(s_Sb, (a, b) =>
+                {
+                    s_Sb.Append(b);
+                    return s_Sb.Append(", ");
+                });
                 s_Sb.Length -= 2;
             }
 
             return s_Sb.ToString();
         }
 
-        public static void Draw(SerializedProperty sp, Material[] mats)
+        public static void Draw(SerializedProperty sp, List<Material> mats)
         {
-            bool isClicked;
+            var pos = EditorGUILayout.GetControlRect(true);
-            using (new EditorGUILayout.HorizontalScope(GUILayout.ExpandWidth(false)))
+            var label = new GUIContent(sp.displayName, sp.tooltip);
-            {
+            var rect = EditorGUI.PrefixLabel(pos, label);
-                var pos = EditorGUILayout.GetControlRect(true);
+            var text = sp.hasMultipleDifferentValues
-                var label = new GUIContent(sp.displayName, sp.tooltip);
+                ? "-"
-                var rect = EditorGUI.PrefixLabel(pos, label);
+                : CollectActiveNames(sp, s_ActiveNames);
-                var text = sp.hasMultipleDifferentValues
-                    ? "-"
-                    : CollectActiveNames(sp, s_ActiveNames);
-                isClicked = GUI.Button(rect, text, EditorStyles.popup);
-            }
 
-            if (!isClicked) return;
+            if (!GUI.Button(rect, text, EditorStyles.popup)) return;
 
             var gm = new GenericMenu();
-            gm.AddItem(s_ContentNothing, s_ActiveNames.Count == 0, () =>
+            gm.AddItem(s_ContentNothing, s_ActiveNames.Count == 0, x =>
             {
-                sp.ClearArray();
+                var current = (SerializedProperty)x;
-                sp.serializedObject.ApplyModifiedProperties();
+                current.ClearArray();
-            });
+                current.serializedObject.ApplyModifiedProperties();
+            }, sp);
 
             if (!sp.hasMultipleDifferentValues)
             {
@@ -73,7 +73,7 @@ namespace Coffee.UIExtensions
             }
 
             s_Names.Clear();
-            for (var j = 0; j < mats.Length; j++)
+            for (var j = 0; j < mats.Count; j++)
             {
                 var mat = mats[j];
                 if (!mat || !mat.shader) continue;
@@ -82,8 +82,7 @@ namespace Coffee.UIExtensions
                 {
                     var name = ShaderUtil.GetPropertyName(mat.shader, i);
                     var type = (AnimatableProperty.ShaderPropertyType)ShaderUtil.GetPropertyType(mat.shader, i);
-                    if (s_Names.Contains(name)) continue;
+                    if (!s_Names.Add(name)) continue;
-                    s_Names.Add(name);
 
                     AddMenu(gm, sp, new ShaderProperty(name, type), true);
 

Editor/Internal.meta

@@ -1,8 +0,0 @@
-fileFormatVersion: 2
-guid: 3e440931f761e4e888510a4e6045287a
-folderAsset: yes
-DefaultImporter:
-  externalObjects: {}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Editor/UIParticleEditor.cs

@@ -2,19 +2,19 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text.RegularExpressions;
 using UnityEditor;
+using UnityEditor.UI;
 using UnityEditorInternal;
 using UnityEngine;
+using UnityEngine.Profiling;
 using UnityEngine.UI;
-
+using Coffee.UIParticleInternal;
 #if UNITY_2021_2_OR_NEWER
 using UnityEditor.Overlays;
 #else
 using System;
 using System.Reflection;
-using Coffee.UIParticleInternal;
 using Object = UnityEngine.Object;
 #endif
-
 #if UNITY_2021_2_OR_NEWER
 using UnityEditor.SceneManagement;
 
@@ -26,20 +26,31 @@ namespace Coffee.UIExtensions
 {
     [CustomEditor(typeof(UIParticle))]
     [CanEditMultipleObjects]
-    internal class UIParticleEditor : Editor
+    internal class UIParticleEditor : GraphicEditor
     {
+        internal class State : ScriptableSingleton<State>
+        {
+            public bool is3DScaleMode;
+        }
+
         //################################
         // Constant or Static Members.
         //################################
+        private static readonly GUIContent[] s_ContentMaterials = new[]
+        {
+            new GUIContent("Material"),
+            new GUIContent("Trail Material")
+        };
+
         private static readonly GUIContent s_ContentRenderingOrder = new GUIContent("Rendering Order");
         private static readonly GUIContent s_ContentRefresh = new GUIContent("Refresh");
         private static readonly GUIContent s_ContentFix = new GUIContent("Fix");
-        private static readonly GUIContent s_ContentMaterial = new GUIContent("Material");
-        private static readonly GUIContent s_ContentTrailMaterial = new GUIContent("Trail Material");
         private static readonly GUIContent s_Content3D = new GUIContent("3D");
         private static readonly GUIContent s_ContentRandom = new GUIContent("Random");
         private static readonly GUIContent s_ContentScale = new GUIContent("Scale");
-        private static bool s_XYZMode;
+        private static readonly GUIContent s_ContentPrimary = new GUIContent("Primary");
+        private static readonly Regex s_RegexBuiltInGuid = new Regex(@"^0{16}.0{15}$", RegexOptions.Compiled);
+        private static readonly List<Material> s_TempMaterials = new List<Material>();
 
         private SerializedProperty _maskable;
         private SerializedProperty _scale3D;
@@ -49,8 +60,11 @@ namespace Coffee.UIExtensions
         private SerializedProperty _groupMaxId;
         private SerializedProperty _positionMode;
         private SerializedProperty _autoScalingMode;
+        private SerializedProperty _useCustomView;
+        private SerializedProperty _customViewSize;
         private ReorderableList _ro;
         private bool _showMax;
+        private bool _is3DScaleMode;
 
         private static readonly HashSet<Shader> s_Shaders = new HashSet<Shader>();
 #if UNITY_2018 || UNITY_2019
@@ -72,8 +86,10 @@ namespace Coffee.UIExtensions
         /// <summary>
         /// This function is called when the object becomes enabled and active.
         /// </summary>
-        private void OnEnable()
+        protected override void OnEnable()
         {
+            base.OnEnable();
+
             _maskable = serializedObject.FindProperty("m_Maskable");
             _scale3D = serializedObject.FindProperty("m_Scale3D");
             _animatableProperties = serializedObject.FindProperty("m_AnimatableProperties");
@@ -82,31 +98,43 @@ namespace Coffee.UIExtensions
             _groupMaxId = serializedObject.FindProperty("m_GroupMaxId");
             _positionMode = serializedObject.FindProperty("m_PositionMode");
             _autoScalingMode = serializedObject.FindProperty("m_AutoScalingMode");
+            _useCustomView = serializedObject.FindProperty("m_UseCustomView");
+            _customViewSize = serializedObject.FindProperty("m_CustomViewSize");
 
             var sp = serializedObject.FindProperty("m_Particles");
             _ro = new ReorderableList(sp.serializedObject, sp, true, true, true, true)
             {
-                elementHeight = EditorGUIUtility.singleLineHeight * 3 + 4,
+                elementHeightCallback = index =>
-                elementHeightCallback = _ => 3 * (EditorGUIUtility.singleLineHeight + 2),
+                {
+                    var ps = sp.GetArrayElementAtIndex(index).objectReferenceValue as ParticleSystem;
+                    var materialCount = 0;
+                    if (ps && ps.TryGetComponent<ParticleSystemRenderer>(out var psr))
+                    {
+                        materialCount = psr.sharedMaterials.Length;
+                    }
+
+                    return (materialCount + 1) * (EditorGUIUtility.singleLineHeight + 2);
+                },
                 drawElementCallback = (rect, index, _, __) =>
                 {
-                    EditorGUI.BeginDisabledGroup(sp.hasMultipleDifferentValues);
+                    rect.y += 2;
-                    rect.y += 1;
                     rect.height = EditorGUIUtility.singleLineHeight;
                     var p = sp.GetArrayElementAtIndex(index);
                     EditorGUI.ObjectField(rect, p, GUIContent.none);
+                    var ps = p.objectReferenceValue as ParticleSystem;
+                    if (!ps || !ps.TryGetComponent<ParticleSystemRenderer>(out var psr)) return;
+
                     rect.x += 15;
                     rect.width -= 15;
-                    var ps = p.objectReferenceValue as ParticleSystem;
+                    var materials = new SerializedObject(psr).FindProperty("m_Materials");
-                    var materials = ps
+                    var count = Mathf.Min(materials.arraySize, 2);
-                        ? new SerializedObject(ps.GetComponent<ParticleSystemRenderer>()).FindProperty("m_Materials")
+                    for (var i = 0; i < count; i++)
-                        : null;
+                    {
-                    rect.y += rect.height + 1;
+                        rect.y += rect.height + 2;
-                    MaterialField(rect, s_ContentMaterial, materials, 0);
+                        EditorGUI.PropertyField(rect, materials.GetArrayElementAtIndex(i), s_ContentMaterials[i]);
-                    rect.y += rect.height + 1;
+                    }
-                    MaterialField(rect, s_ContentTrailMaterial, materials, 1);
+
-                    EditorGUI.EndDisabledGroup();
+                    if (materials.serializedObject.hasModifiedProperties)
-                    if (materials != null && materials.serializedObject.hasModifiedProperties)
                     {
                         materials.serializedObject.ApplyModifiedProperties();
                     }
@@ -140,19 +168,18 @@ namespace Coffee.UIExtensions
                     uip.RefreshParticles(uip.particles);
                 }
             }
-        }
 
-        private static void MaterialField(Rect rect, GUIContent label, SerializedProperty sp, int index)
+            // Initialize 3D scale mode.
-        {
+            _is3DScaleMode = State.instance.is3DScaleMode;
-            if (sp == null || sp.arraySize <= index)
+            if (!_is3DScaleMode)
             {
-                EditorGUI.BeginDisabledGroup(true);
+                var x = _scale3D.FindPropertyRelative("x");
-                EditorGUI.ObjectField(rect, label, null, typeof(Material), true);
+                var y = _scale3D.FindPropertyRelative("y");
-                EditorGUI.EndDisabledGroup();
+                var z = _scale3D.FindPropertyRelative("z");
-            }
+                _is3DScaleMode = !Mathf.Approximately(x.floatValue, y.floatValue) ||
-            else
+                                 !Mathf.Approximately(y.floatValue, z.floatValue) ||
-            {
+                                 y.hasMultipleDifferentValues ||
-                EditorGUI.PropertyField(rect, sp.GetArrayElementAtIndex(index), label);
+                                 z.hasMultipleDifferentValues;
             }
         }
 
@@ -164,6 +191,7 @@ namespace Coffee.UIExtensions
             var current = target as UIParticle;
             if (!current) return;
 
+            Profiler.BeginSample("(UIP:E) OnInspectorGUI");
             serializedObject.Update();
 
             // Maskable
@@ -171,17 +199,16 @@ namespace Coffee.UIExtensions
 
             // Scale
             EditorGUI.BeginDisabledGroup(!_meshSharing.hasMultipleDifferentValues && _meshSharing.intValue == 4);
-            s_XYZMode = DrawFloatOrVector3Field(_scale3D, s_XYZMode);
+            if (DrawFloatOrVector3Field(_scale3D, _is3DScaleMode) != _is3DScaleMode)
+            {
+                State.instance.is3DScaleMode = _is3DScaleMode = !_is3DScaleMode;
+            }
+
             EditorGUI.EndDisabledGroup();
 
             // AnimatableProperties
-            var mats = current.particles
+            current.GetMaterials(s_TempMaterials);
-                .Where(x => x)
+            AnimatablePropertyEditor.Draw(_animatableProperties, s_TempMaterials);
-                .Select(x => x.GetComponent<ParticleSystemRenderer>().sharedMaterial)
-                .Where(x => x)
-                .ToArray();
-
-            AnimatablePropertyEditor.Draw(_animatableProperties, mats);
 
             // Mesh sharing
             EditorGUI.BeginChangeCheck();
@@ -189,9 +216,12 @@ namespace Coffee.UIExtensions
             if (EditorGUI.EndChangeCheck())
             {
                 serializedObject.ApplyModifiedProperties();
-                foreach (var uip in targets.OfType<UIParticle>())
+                foreach (var t in targets)
                 {
-                    uip.ResetGroupId();
+                    if (t is UIParticle uip)
+                    {
+                        uip.ResetGroupId();
+                    }
                 }
             }
 
@@ -199,16 +229,29 @@ namespace Coffee.UIExtensions
             EditorGUILayout.PropertyField(_positionMode);
 
             // Auto Scaling
-            DrawAutoScaling(_autoScalingMode, targets.OfType<UIParticle>());
+            EditorGUILayout.PropertyField(_autoScalingMode);
+
+            // Custom View Size
+            EditorGUILayout.PropertyField(_useCustomView);
+            EditorGUI.BeginChangeCheck();
+            EditorGUI.BeginDisabledGroup(!_useCustomView.boolValue);
+            EditorGUI.indentLevel++;
+            EditorGUILayout.PropertyField(_customViewSize);
+            EditorGUI.indentLevel--;
+            EditorGUI.EndDisabledGroup();
+            if (EditorGUI.EndChangeCheck())
+            {
+                _customViewSize.floatValue = Mathf.Max(0.1f, _customViewSize.floatValue);
+            }
 
             // Target ParticleSystems.
             EditorGUI.BeginChangeCheck();
-            EditorGUI.BeginDisabledGroup(targets.OfType<UIParticle>().Any(x => !x.canvas));
             _ro.DoLayoutList();
-            EditorGUI.EndDisabledGroup();
             serializedObject.ApplyModifiedProperties();
+
             if (EditorGUI.EndChangeCheck())
             {
+                EditorApplication.QueuePlayerLoopUpdate();
                 foreach (var uip in targets.OfType<UIParticle>())
                 {
                     uip.RefreshParticles(uip.particles);
@@ -216,7 +259,8 @@ namespace Coffee.UIExtensions
             }
 
             // Non-UI built-in shader is not supported.
-            foreach (var mat in current.materials)
+            Profiler.BeginSample("(UIP:E) Non-UI built-in shader is not supported.");
+            foreach (var mat in s_TempMaterials)
             {
                 if (!mat || !mat.shader) continue;
                 var shader = mat.shader;
@@ -229,15 +273,18 @@ namespace Coffee.UIExtensions
                 }
             }
 
+            Profiler.EndSample();
+
             // Does the shader support UI masks?
+            Profiler.BeginSample("(UIP:E) Does the shader support UI masks?");
             if (current.maskable && current.GetComponentInParent<Mask>(false))
             {
-                foreach (var mat in current.materials)
+                foreach (var mat in s_TempMaterials)
                 {
                     if (!mat || !mat.shader) continue;
                     var shader = mat.shader;
-                    if (s_Shaders.Contains(shader)) continue;
+                    if (!s_Shaders.Add(shader)) continue;
-                    s_Shaders.Add(shader);
+
                     foreach (var propName in s_MaskablePropertyNames)
                     {
                         if (mat.HasProperty(propName)) continue;
@@ -251,7 +298,9 @@ namespace Coffee.UIExtensions
                 }
             }
 
+            s_TempMaterials.Clear();
             s_Shaders.Clear();
+            Profiler.EndSample();
 
             // UIParticle for trail should be removed.
             var label = "This UIParticle component should be removed. The UIParticle for trails is no longer needed.";
@@ -290,12 +339,14 @@ namespace Coffee.UIExtensions
                 }
             }
 #endif
+            Profiler.EndSample();
         }
 
-        private bool IsBuiltInObject(Object obj)
+        private static bool IsBuiltInObject(Object obj)
         {
-            return AssetDatabase.TryGetGUIDAndLocalFileIdentifier(obj, out var guid, out long _)
+            return AssetDatabase.IsMainAsset(obj)
-                   && Regex.IsMatch(guid, "^0{16}.0{15}$", RegexOptions.Compiled);
+                   && AssetDatabase.TryGetGUIDAndLocalFileIdentifier(obj, out var guid, out long _)
+                   && s_RegexBuiltInGuid.IsMatch(guid);
         }
 
 #if UNITY_2018 || UNITY_2019
@@ -389,7 +440,7 @@ namespace Coffee.UIExtensions
             {
                 EditorGUI.BeginDisabledGroup(true);
                 var obj = UIParticleUpdater.GetPrimary(spGroupId.intValue);
-                EditorGUILayout.ObjectField("Primary", obj, typeof(UIParticle), false);
+                EditorGUILayout.ObjectField(s_ContentPrimary, obj, typeof(UIParticle), false);
                 EditorGUI.EndDisabledGroup();
             }
 
@@ -399,7 +450,7 @@ namespace Coffee.UIExtensions
             return showMax;
         }
 
-        private static void DrawAutoScaling(SerializedProperty prop, IEnumerable<UIParticle> uiParticles)
+        private static void DrawAutoScaling(SerializedProperty prop)
         {
             EditorGUILayout.PropertyField(prop);
         }
@@ -408,7 +459,9 @@ namespace Coffee.UIExtensions
         {
             if (!p || (ignoreCurrent && target == p)) return;
 
+            var cr = p.canvasRenderer;
             DestroyImmediate(p);
+            DestroyImmediate(cr);
 
 #if UNITY_2018_3_OR_NEWER
             var stage = PrefabStageUtility.GetCurrentPrefabStage();

README.md

@@ -1,61 +1,85 @@
-# <img alt="UIParticleIcon" src="https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/d76e105e-a840-4f61-a1f6-8cf311c0812d" width="26"/> Particle Effect For UGUI (UI Particle)
+# <img alt="UIParticleIcon" src="https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/d76e105e-a840-4f61-a1f6-8cf311c0812d" width="26"/> Particle Effect For UGUI (UI Particle) <!-- omit in toc -->
-
-This package provides a component to render particle effects for uGUI in Unity 2018.2 or later.  
-The particle rendering is maskable and sortable, without the need for an extra Camera, RenderTexture, or Canvas.
 
 [![](https://img.shields.io/npm/v/com.coffee.ui-particle?label=openupm&registry_uri=https://package.openupm.com)](https://openupm.com/packages/com.coffee.ui-particle/)
-[![](https://img.shields.io/github/v/release/mob-sakai/ParticleEffectForUGUI?include_prereleases)](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
+[![](https://img.shields.io/github/v/release/mob-sakai/ParticleEffectForUGUI)](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
-[![](https://img.shields.io/github/license/mob-sakai/ParticleEffectForUGUI.svg)](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/LICENSE.txt)  
+[![](https://img.shields.io/github/license/mob-sakai/ParticleEffectForUGUI.svg)](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/LICENSE.md)  
 ![](https://img.shields.io/badge/Unity-2018.2+-57b9d3.svg?style=flat&logo=unity)
+![](https://img.shields.io/badge/uGUI_2.0_Ready-57b9d3.svg?style=flat)
+![](https://img.shields.io/badge/UPR%2FHDPR_Ready-57b9d3.svg?style=flat)  
 ![](https://github.com/mob-sakai/ParticleEffectForUGUI/actions/workflows/test.yml/badge.svg?branch=develop)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-orange.svg)](http://makeapullrequest.com)
+[![](https://img.shields.io/github/watchers/mob-sakai/ParticleEffectForUGUI.svg?style=social&label=Watch)](https://github.com/mob-sakai/ParticleEffectForUGUI/subscription)
 [![](https://img.shields.io/twitter/follow/mob_sakai.svg?label=Follow&style=social)](https://twitter.com/intent/follow?screen_name=mob_sakai)
 
-<< [📝 Description](#-description) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>
+<< [📝 Description](#-description-) | [📌 Key Features](#-key-features) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>
 
-<br><br>
+## 📝 Description <!-- omit in toc -->
-
-## 📝 Description
 
 ![](https://user-images.githubusercontent.com/12690315/41771577-8da4b968-7650-11e8-9524-cd162c422d9d.gif)
 
-This package utilizes the new APIs `MeshBake/MashTrailBake` (introduced with Unity 2018.2) to render particles through
+This package uses the new APIs `MeshBake/MeshTrailBake` (introduced in Unity 2018.2) to render particles through `CanvasRenderer`.  
-CanvasRenderer.  
+You can render, mask, and sort your `ParticleSystems` for UI without the need for an additional `Camera`, `RenderTexture`, or `Canvas`.
-You can render, mask, and sort your ParticleSystems for UI without the necessity of an additional Camera, RenderTexture,
-or Canvas.
 
-### Features
+- [📌 Key Features](#-key-features)
+- [🎮 Demo](#-demo)
+- [⚙ Installation](#-installation)
+    - [Install via OpenUPM](#install-via-openupm)
+    - [Install via UPM (with Package Manager UI)](#install-via-upm-with-package-manager-ui)
+    - [Install via UPM (Manually)](#install-via-upm-manually)
+    - [Install as Embedded Package](#install-as-embedded-package)
+- [🚀 Usage](#-usage)
+  - [Component: UIParticle](#component-uiparticle)
+  - [Basic Usage](#basic-usage)
+  - [Usage with Your Existing ParticleSystem Prefab](#usage-with-your-existing-particlesystem-prefab)
+  - [Usage with `Mask` or `RectMask2D` Component](#usage-with-mask-or-rectmask2d-component)
+  - [Usage with Script](#usage-with-script)
+  - [Component: UIParticleAttractor](#component-uiparticleattractor)
+  - [Project Settings](#project-settings)
+- [🛠 Development Note](#-development-note)
+  - [Compares the Baking mesh approach with the conventional approach](#compares-the-baking-mesh-approach-with-the-conventional-approach)
+    - [Performance test results](#performance-test-results)
+  - [🔍 FAQ: Why Are My UIParticles Not Displayed Correctly?](#-faq-why-are-my-uiparticles-not-displayed-correctly)
+  - [Shader Limitation](#shader-limitation)
+    - [Built-in shaders are not supported](#built-in-shaders-are-not-supported)
+    - [(Unity 2018 or 2019) UV.zw components will be discarded](#unity-2018-or-2019-uvzw-components-will-be-discarded)
+    - [(Unity 2018 or 2019) Custom vertex streams](#unity-2018-or-2019-custom-vertex-streams)
+  - [Overheads](#overheads)
+  - [How to Make a Custom Shader to Support `Mask` and `RectMask2D` Component](#how-to-make-a-custom-shader-to-support-mask-and-rectmask2d-component)
+- [🤝 Contributing](#-contributing)
+  - [Issues](#issues)
+  - [Pull Requests](#pull-requests)
+  - [Support](#support)
+- [License](#license)
+- [Author](#author)
+- [See Also](#see-also)
 
-* Easy to use: The package is ready to use out of the box.
+<br><br>
-* Sort particle effects and other UI by sibling index.
-* No extra Camera, RenderTexture, or Canvas required.
-* Masking options for Mask or RectMask2D.
-* Support for the Trail module.
-* Support for CanvasGroup alpha.
-* No allocations needed to render particles.
-* Compatibility with overlay, camera space, and world space.
-* Support for Universal Render Pipeline (URP) and High Definition Render Pipeline (HDRP).
-* Support for disabling `Enter Play Mode Options > Reload Domain`.
-* Support for changing material property with AnimationClip (AnimatableProperty).  
-  ![AnimatableProperty.gif][AnimatableProperty.gif]
-* [4.0.0+] Support for 8+ materials.
-* [4.0.0+] Correct world space particle position adjustment when changing window size for standalone platforms (Windows,
-  MacOSX, and Linux).
-* [4.0.0+] Adaptive scaling for UI.
-* [4.0.0+] Mesh sharing group to improve performance.  
-  ![MeshSharing.gif][MeshSharing.gif]
-* [4.0.0+] Particle attractor component.  
-  ![ParticleAttractor.gif][ParticleAttractor.gif]
-* [4.1.0+] Relative/Absolute particle position mode.  
-  ![AbsolutePosition.gif][AbsolutePosition.gif]
 
-[AnimatableProperty.gif]: https://user-images.githubusercontent.com/12690315/53286323-2d94a980-37b0-11e9-8afb-c4a207805ff2.gif
+## 📌 Key Features
 
-[MeshSharing.gif]: https://user-images.githubusercontent.com/12690315/174311048-c882df81-6c34-4eba-b0aa-5645457692f1.gif
+* **Easy to use:** The package is ready to use out of the box.
-
+* **Sortable:** Sort particle effects and other UI elements by sibling index.
-[ParticleAttractor.gif]: https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif
+* **Maskable:** Supports `Mask` or `RectMask2D`.
-
+* **No extra components required:** No need for an additional `Camera`, `RenderTexture`, or `Canvas`.
-[AbsolutePosition.gif]: https://user-images.githubusercontent.com/12690315/175751579-5a2357e8-2ecf-4afd-83c8-66e9771bde39.gif
+* **Trail module support:** Fully supports the Trail module.
+* **CanvasGroup alpha support:** Integrates with `CanvasGroup` alpha.
+* **No allocations:** Efficiently renders particles without allocations.
+* **Any canvas render mode support:** Works with overlay, camera space, and world space.
+* **Any Render pipeline support:** Compatible with Universal Render Pipeline (URP) and High Definition Render Pipeline (HDRP).
+* **Disabling domain reload support:** Supports disabling `Enter Play Mode Options > Reload Domain`.
+* **Animatable material properties:** Supports changing material properties with AnimationClip (AnimatableProperty).  
+  ![AnimatableProperty.gif](https://user-images.githubusercontent.com/12690315/53286323-2d94a980-37b0-11e9-8afb-c4a207805ff2.gif)
+* **Multiple materials:** Supports 8+ materials.
+* **Correct positioning:** Adjusts world space particle positions correctly when changing window size for standalone platforms (Windows, MacOSX, and Linux).
+* **Adaptive scaling:** Provides adaptive scaling for UI (AutoScalingMode).
+* **Performance optimization:** Mesh sharing group to improve performance.  
+  <img alt="MeshSharing.gif" src="https://user-images.githubusercontent.com/12690315/174311048-c882df81-6c34-4eba-b0aa-5645457692f1.gif" width="450"/>
+* **Particle attractor:** Includes a particle attractor component.  
+  <img alt="ParticleAttractor.gif" src="https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif" width="450"/>
+* **Emission position mode:** Supports relative/absolute particle emission position modes.  
+  <img alt="AbsolutePosition.gif" src="https://user-images.githubusercontent.com/12690315/175751579-5a2357e8-2ecf-4afd-83c8-66e9771bde39.gif" width="450"/>
+* **Custom view size:** Fixes min/max particle size mismatch.  
+  ![CustomViewSize.gif](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/dd929959-1a37-420b-b13d-e849022b9c9d)
 
 <br><br>
 
@@ -76,76 +100,86 @@ or Canvas.
 
 [JMO]: https://assetstore.unity.com/publishers/1669
 
-
 <br><br>
 
 ## ⚙ Installation
 
-_This package requires Unity 2018.3 or later._
+_This package requires **Unity 2018.3 or later**._
 
 #### Install via OpenUPM
 
-This package is available on [OpenUPM](https://openupm.com) package registry.
+- This package is available on [OpenUPM](https://openupm.com) package registry.
-This is the preferred method of installation, as you can easily receive updates as they're released.
+- This is the preferred method of installation, as you can easily receive updates as they're released.
+- If you have [openupm-cli](https://github.com/openupm/openupm-cli) installed, then run the following command in your project's directory:
+  ```
+  openupm add com.coffee.ui-particle
+  ```
+- To update the package, use Package Manager UI (`Window > Package Manager`) or run the following command with `@{version}`:
+  ```
+  openupm add com.coffee.ui-particle@4.9.0
+  ```
 
-If you have [openupm-cli](https://github.com/openupm/openupm-cli) installed, then run the following command in your
+#### Install via UPM (with Package Manager UI)
-project's directory:
 
-```sh
+- Click `Window > Package Manager` to open Package Manager UI.
-openupm add com.coffee.ui-particle
+- Click `+ > Add package from git URL...` and input the repository URL: `https://github.com/mob-sakai/ParticleEffectForUGUI.git`  
-```
+  ![](https://github.com/user-attachments/assets/f88f47ad-c606-44bd-9e86-ee3f72eac548)
+- To update the package, change suffix `#{version}` to the target version.
+  - e.g. `https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.9.0`
 
-#### Install via UPM (using Git URL)
+#### Install via UPM (Manually)
 
-Navigate to your project's Packages folder and open the `manifest.json` file. Then add this package somewhere in
+- Open the `Packages/manifest.json` file in your project. Then add this package somewhere in the `dependencies` block:
-the `dependencies` block:
+  ```json
-
+  {
-```json
+    "dependencies": {
-{
+      "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git",
-  "dependencies": {
+      ...
-    "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git",
+    }
-    ...
   }
-}
+  ```
-```
 
-To update the package, change suffix `#{version}` to the target version.
+- To update the package, change suffix `#{version}` to the target version.
+  - e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.9.0",`
 
-* e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.6.0",`
+#### Install as Embedded Package
 
-Or, use [UpmGitExtension](https://github.com/mob-sakai/UpmGitExtension) to install and update the package.
+1. Download a source code zip file from [Releases](https://github.com/mob-sakai/ParticleEffectForUGUI.git/releases) and extract it.
-
+2. Place it in your project's `Packages` directory.  
-<br><br>
+   ![](https://github.com/mob-sakai/mob-sakai/assets/12690315/0b7484b4-5fca-43b0-a9ef-e5dbd99bcdb4)
-
+- If you want to fix bugs or add features, install it as an embedded package.
-## ⚙ Upgrading from 3.x/4.x to 5.x
+- To update the package, you need to re-download it and replace the contents.
-
-### Breaking Changes
-
-- The default value of `UIParticle.scale` has been changed from `10` to `1`.
-- `UIParticle` no longer inherits from `MaskableGraphic`.
-- 
 
 <br><br>
 
 ## 🚀 Usage
 
-### UIParticle Component
+### Component: UIParticle
 
 `UIParticle` controls the ParticleSystems that are attached to its own game objects and child game objects.
 
-![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/3559df45-63e7-4c4c-9233-f455779efa29)
+![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/1cf5753b-33fc-4cef-91c3-413c515a954f)
 
-- **Maskable**: Does this graphic allow masking.
+- **Maskable**: Does this graphic allow maskable.
-- **Scale**: Scale the rendering. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.
+- **Scale**: Scale the rendering particles. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.
 - **Animatable Properties**: If you want to update material properties (e.g., `_MainTex_ST`, `_Color`) in AnimationClip,
-  use this to mark the changes.
+  use this to mark as animatable.
 - **Mesh Sharing**: Particle simulation results are shared within the same group. A large number of the same effects can
   be displayed with a small load. When the `Random` toggle is enabled, it will be grouped randomly.
+  - **None:** Disable mesh sharing.
+  - **Auto:** Automatically select Primary/Replica.
+  - **Primary:** Provides particle simulation results to the same group.
+  - **Primary Simulator:** Primary, but do not render the particle (simulation only).
+  - **Replica:** Render simulation results provided by the primary.
 - **Position Mode**: Emission position mode.
-    - **Absolute:** Emit from the world position of the `ParticleSystem`.
+  - **Absolute:** The particles will be emitted from the world position.
-    - **Relative:** Emit from the scaled position of the `ParticleSystem`.
+  - **Relative:** The particles will be emitted from the scaled position.
-- **Auto Scaling**: `Transform.lossyScale` (=world scale) will be set to `(1, 1, 1)` on update. It prevents the
+- **Auto Scaling Mode**: How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.
-  root-Canvas scale from affecting the hierarchy-scaled `ParticleSystem`.
+  - **None:** Do nothing.
+  - **Transform:** Transform.lossyScale (=world scale) will be set to (1, 1, 1).
+  - **UIParticle:** UIParticle.scale will be adjusted.
+- **Use Custom View:** Use this if the particles are not displayed correctly due to min/max particle size.
+  - **Custom view size:** Change the bake view size.
 - **Rendering Order**: The ParticleSystem list to be rendered. You can change the order and the materials.
 
 **NOTE:** Press the `Refresh` button to reconstruct the rendering order based on children ParticleSystem's sorting order
@@ -153,7 +187,7 @@ and z-position.
 
 <br><br>
 
-#### Basic Usage
+### Basic Usage
 
 1. Select `GameObject/UI/ParticleSystem` to create UIParticle with a ParticleSystem.
    ![particle](https://user-images.githubusercontent.com/12690315/95007361-cad0e880-0649-11eb-8835-f145d62c5977.png)
@@ -162,7 +196,7 @@ and z-position.
 
 <br>
 
-#### With Your Existing ParticleSystem Prefab
+### Usage with Your Existing ParticleSystem Prefab
 
 1. Select `GameObject/UI/ParticleSystem (Empty)` to create UIParticle.
    ![empty](https://user-images.githubusercontent.com/12690315/95007362-cb697f00-0649-11eb-8a09-29b0a13791e4.png)
@@ -171,7 +205,7 @@ and z-position.
 
 <br>
 
-#### With `Mask` or `RectMask2D` Component
+### Usage with `Mask` or `RectMask2D` Component
 
 If you want to mask particles, set a stencil-supported shader (such as `UI/UIAdditive`) to the material for
 ParticleSystem.
@@ -183,7 +217,7 @@ section.
 
 <br><br>
 
-### Script usage
+### Usage with Script
 
 ```cs
 // Instantiate ParticleSystem prefab with UIParticle on runtime.
@@ -202,14 +236,14 @@ uiParticle.Stop();
 
 <br><br>
 
-### UIParticleAttractor component
+### Component: UIParticleAttractor
 
 `UIParticleAttractor` attracts particles generated by the specified ParticleSystem.
 
-![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/ea6ae0ed-f9a8-437c-8baa-47526303391e)  
+![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/5c20ad73-4b9a-4f38-9cdc-119df5cce077)
 ![](https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif)
 
-- **Particle System**: Attracts particles generated by the specified particle system.
+- **Particle Systems**: Attracts particles generated by the specified ParticleSystems.
 - **Destination Radius**: Once the particle is within the radius, the particle lifetime will become 0, and `OnAttracted`
   will be called.
 - **Delay Rate**: Delay to start attracting. It is a percentage of the particle's start lifetime.
@@ -223,6 +257,14 @@ uiParticle.Stop();
 
 <br><br>
 
+### Project Settings
+
+![](https://github.com/user-attachments/assets/befc7f34-fb47-4006-831a-eba79fda11ca)
+
+- Click `Edit > Project Settings` to open the Project Settings window and then select `UI > UI Particle` category.
+
+<br><br>
+
 ## 🛠 Development Note
 
 ### Compares the Baking mesh approach with the conventional approach
@@ -354,7 +396,7 @@ When improving performance, keep the following in mind:
     - Consider a single material, atlasing the sprites, and using `Sprite` mode in the `Texture Sheet Animation` module
       in the ParticleSystem.
 
-### How to Make a Custom Shader to Support Mask/RectMask2D Component
+### How to Make a Custom Shader to Support `Mask` and `RectMask2D` Component
 
 <details>
 <summary>Shader tips</summary>

Runtime/Coffee.UIParticle.R.dll.meta

@@ -0,0 +1,33 @@
+fileFormatVersion: 2
+guid: 4d73b3825bf044d418ae21bb331d3902
+PluginImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  iconMap: {}
+  executionOrder: {}
+  defineConstraints: []
+  isPreloaded: 0
+  isOverridable: 1
+  isExplicitlyReferenced: 0
+  validateReferences: 1
+  platformData:
+  - first:
+      Any: 
+    second:
+      enabled: 1
+      settings: {}
+  - first:
+      Editor: Editor
+    second:
+      enabled: 0
+      settings:
+        DefaultValueInitialized: true
+  - first:
+      Windows Store Apps: WindowsStoreApps
+    second:
+      enabled: 0
+      settings:
+        CPU: AnyCPU
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/Internal/Extensions/ComponentExtensions.cs

@@ -18,10 +18,10 @@ namespace Coffee.UIParticleInternal
         public static T[] GetComponentsInChildren<T>(this Component self, int depth)
             where T : Component
         {
-            var results = ListPool<T>.Rent();
+            var results = InternalListPool<T>.Rent();
             self.GetComponentsInChildren_Internal(results, depth);
             var array = results.ToArray();
-            ListPool<T>.Return(ref results);
+            InternalListPool<T>.Return(ref results);
             return array;
         }
 
@@ -50,7 +50,7 @@ namespace Coffee.UIParticleInternal
             var childCount = tr.childCount;
             for (var i = 0; i < childCount; i++)
             {
-                tr.GetChild(i).GetComponentsInChildren(results, depth - 1);
+                tr.GetChild(i).GetComponentsInChildren_Internal(results, depth - 1);
             }
         }
 
@@ -134,6 +134,35 @@ namespace Coffee.UIParticleInternal
             Profiler.EndSample();
         }
 
+        /// <summary>
+        /// Add a component of a specific type to the children of a GameObject.
+        /// </summary>
+        public static void AddComponentOnChildren<T>(this Component self, bool includeSelf)
+            where T : Component
+        {
+            if (self == null) return;
+
+            Profiler.BeginSample("(COF)[ComponentExt] AddComponentOnChildren > Self");
+            if (includeSelf && !self.TryGetComponent<T>(out _))
+            {
+                self.gameObject.AddComponent<T>();
+            }
+
+            Profiler.EndSample();
+
+            Profiler.BeginSample("(COF)[ComponentExt] AddComponentOnChildren > Child");
+            var childCount = self.transform.childCount;
+            for (var i = 0; i < childCount; i++)
+            {
+                var child = self.transform.GetChild(i);
+                if (child.TryGetComponent<T>(out _)) continue;
+
+                child.gameObject.AddComponent<T>();
+            }
+
+            Profiler.EndSample();
+        }
+
 #if !UNITY_2021_2_OR_NEWER && !UNITY_2020_3_45 && !UNITY_2020_3_46 && !UNITY_2020_3_47 && !UNITY_2020_3_48
         public static T GetComponentInParent<T>(this Component self, bool includeInactive) where T : Component
         {

Runtime/Internal/Extensions/ListExtensions.cs

@@ -1,19 +0,0 @@
-using System.Collections.Generic;
-
-namespace Coffee.UIParticleInternal
-{
-    /// <summary>
-    /// Extension methods for Component class.
-    /// </summary>
-    internal static class ListExtensions
-    {
-        public static void RemoveAtFast<T>(this List<T> self, int index)
-        {
-            if (self == null) return;
-
-            var lastIndex = self.Count - 1;
-            self[index] = self[lastIndex];
-            self.RemoveAt(lastIndex);
-        }
-    }
-}

Runtime/Internal/Extensions/ListExtensions.cs.meta

@@ -1,11 +0,0 @@
-fileFormatVersion: 2
-guid: 833553390099d40c9b212823f0852c46
-MonoImporter:
-  externalObjects: {}
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Runtime/Internal/Extensions/SpriteExtensions.cs

@@ -17,11 +17,15 @@ namespace Coffee.UIParticleInternal
             Type.GetType("UnityEditor.Experimental.U2D.SpriteEditorExtension, UnityEditor")
             ?? Type.GetType("UnityEditor.U2D.SpriteEditorExtension, UnityEditor");
 
-        private static readonly MethodInfo s_GetActiveAtlasTextureMethod = s_SpriteEditorExtensionType
+        private static readonly Func<Sprite, Texture2D> s_GetActiveAtlasTextureMethod =
-            .GetMethod("GetActiveAtlasTexture", BindingFlags.Static | BindingFlags.NonPublic);
+            (Func<Sprite, Texture2D>)Delegate.CreateDelegate(typeof(Func<Sprite, Texture2D>),
+                s_SpriteEditorExtensionType
+                    .GetMethod("GetActiveAtlasTexture", BindingFlags.Static | BindingFlags.NonPublic));
 
-        private static readonly MethodInfo s_GetActiveAtlasMethod = s_SpriteEditorExtensionType
+        private static readonly Func<Sprite, SpriteAtlas> s_GetActiveAtlasMethod =
-            .GetMethod("GetActiveAtlas", BindingFlags.Static | BindingFlags.NonPublic);
+            (Func<Sprite, SpriteAtlas>)Delegate.CreateDelegate(typeof(Func<Sprite, SpriteAtlas>),
+                s_SpriteEditorExtensionType
+                    .GetMethod("GetActiveAtlas", BindingFlags.Static | BindingFlags.NonPublic));
 
         /// <summary>
         /// Get the actual texture of a sprite in play mode or edit mode.
@@ -30,9 +34,7 @@ namespace Coffee.UIParticleInternal
         {
             if (!self) return null;
 
-            if (Application.isPlaying) return self.texture;
+            var ret = s_GetActiveAtlasTextureMethod(self);
-
-            var ret = s_GetActiveAtlasTextureMethod.Invoke(null, new object[] { self }) as Texture2D;
             return ret ? ret : self.texture;
         }
 
@@ -43,7 +45,7 @@ namespace Coffee.UIParticleInternal
         {
             if (!self) return null;
 
-            return s_GetActiveAtlasMethod.Invoke(null, new object[] { self }) as SpriteAtlas;
+            return s_GetActiveAtlasMethod(self);
         }
 #else
         /// <summary>

Runtime/Internal/ProjectSettings/PreloadedProjectSettings.cs

@@ -1,9 +1,9 @@
 using System;
 using System.Linq;
-using System.Reflection;
 using UnityEngine;
 using Object = UnityEngine.Object;
 #if UNITY_EDITOR
+using System.IO;
 using UnityEditor;
 using UnityEditor.Build;
 using UnityEditor.Build.Reporting;
@@ -13,41 +13,51 @@ namespace Coffee.UIParticleInternal
 {
     public abstract class PreloadedProjectSettings : ScriptableObject
 #if UNITY_EDITOR
-        , IPreprocessBuildWithReport
     {
-        int IOrderedCallback.callbackOrder => 0;
+        private class Postprocessor : AssetPostprocessor
-
-        void IPreprocessBuildWithReport.OnPreprocessBuild(BuildReport report)
         {
-            Initialize();
+            private static void OnPostprocessAllAssets(string[] _, string[] __, string[] ___, string[] ____)
+            {
+                Initialize();
+            }
+        }
+
+        private class PreprocessBuildWithReport : IPreprocessBuildWithReport
+        {
+            int IOrderedCallback.callbackOrder => 0;
+
+            void IPreprocessBuildWithReport.OnPreprocessBuild(BuildReport report)
+            {
+                Initialize();
+            }
         }
 
-        [InitializeOnLoadMethod]
-        [InitializeOnEnterPlayMode]
         private static void Initialize()
         {
-            const BindingFlags flags = BindingFlags.Public | BindingFlags.Static | BindingFlags.FlattenHierarchy;
             foreach (var t in TypeCache.GetTypesDerivedFrom(typeof(PreloadedProjectSettings<>)))
             {
                 var defaultSettings = GetDefaultSettings(t);
                 if (!defaultSettings)
                 {
-                    defaultSettings = t.GetProperty("instance", flags)
+                    // When create a new instance, automatically set it as default settings.
-                        ?.GetValue(null, null) as PreloadedProjectSettings;
+                    defaultSettings = CreateInstance(t) as PreloadedProjectSettings;
                     SetDefaultSettings(defaultSettings);
                 }
                 else if (GetPreloadedSettings(t).Length != 1)
                 {
                     SetDefaultSettings(defaultSettings);
                 }
-            }
 
-            EditorApplication.QueuePlayerLoopUpdate();
+                if (defaultSettings)
+                {
+                    defaultSettings.OnInitialize();
+                }
+            }
         }
 
         protected static string GetDefaultName(Type type, bool nicify)
         {
-            var typeName = type.Name.Replace("ProjectSettings", "");
+            var typeName = type.Name;
             return nicify
                 ? ObjectNames.NicifyVariableName(typeName)
                 : typeName;
@@ -71,6 +81,8 @@ namespace Coffee.UIParticleInternal
 
         protected static void SetDefaultSettings(PreloadedProjectSettings asset)
         {
+            if (!asset) return;
+
             var type = asset.GetType();
             if (string.IsNullOrEmpty(AssetDatabase.GetAssetPath(asset)))
             {
@@ -81,7 +93,11 @@ namespace Coffee.UIParticleInternal
 
                 var assetPath = $"Assets/ProjectSettings/{GetDefaultName(type, false)}.asset";
                 assetPath = AssetDatabase.GenerateUniqueAssetPath(assetPath);
-                AssetDatabase.CreateAsset(asset, assetPath);
+                if (!File.Exists(assetPath))
+                {
+                    AssetDatabase.CreateAsset(asset, assetPath);
+                    asset.OnCreateAsset();
+                }
             }
 
             var preloadedAssets = PlayerSettings.GetPreloadedAssets();
@@ -95,13 +111,20 @@ namespace Coffee.UIParticleInternal
 
             AssetDatabase.Refresh();
         }
+
+        protected virtual void OnCreateAsset()
+        {
+        }
+
+        protected virtual void OnInitialize()
+        {
+        }
     }
 #else
     {
     }
 #endif
 
-
     public abstract class PreloadedProjectSettings<T> : PreloadedProjectSettings
         where T : PreloadedProjectSettings<T>
     {
@@ -110,6 +133,8 @@ namespace Coffee.UIParticleInternal
 #if UNITY_EDITOR
         private string _jsonText;
 
+        public static bool hasInstance => s_Instance;
+
         public static T instance
         {
             get

Runtime/Internal/Utilities/FastAction.cs

@@ -10,8 +10,9 @@ namespace Coffee.UIParticleInternal
     /// </summary>
     internal class FastActionBase<T>
     {
-        private static readonly ObjectPool<LinkedListNode<T>> s_NodePool =
+        private static readonly InternalObjectPool<LinkedListNode<T>> s_NodePool =
-            new ObjectPool<LinkedListNode<T>>(() => new LinkedListNode<T>(default), _ => true, x => x.Value = default);
+            new InternalObjectPool<LinkedListNode<T>>(() => new LinkedListNode<T>(default), _ => true,
+                x => x.Value = default);
 
         private readonly LinkedList<T> _delegates = new LinkedList<T>();
 
@@ -20,6 +21,7 @@ namespace Coffee.UIParticleInternal
         /// </summary>
         public void Add(T rhs)
         {
+            if (rhs == null) return;
             Profiler.BeginSample("(COF)[FastAction] Add Action");
             var node = s_NodePool.Rent();
             node.Value = rhs;
@@ -32,6 +34,7 @@ namespace Coffee.UIParticleInternal
         /// </summary>
         public void Remove(T rhs)
         {
+            if (rhs == null) return;
             Profiler.BeginSample("(COF)[FastAction] Remove Action");
             var node = _delegates.Find(rhs);
             if (node != null)
@@ -63,6 +66,11 @@ namespace Coffee.UIParticleInternal
                 node = node.Next;
             }
         }
+
+        public void Clear()
+        {
+            _delegates.Clear();
+        }
     }
 
     /// <summary>

Runtime/Internal/Utilities/FrameCache.cs

@@ -46,7 +46,6 @@ namespace Coffee.UIParticleInternal
             GetFrameCache<T>().Set((key1.GetHashCode(), key2.GetHashCode()), result);
         }
 
-
         /// <summary>
         /// Sets a value in the frame cache with a specified key.
         /// </summary>

Runtime/Internal/Utilities/Logging.cs

@@ -5,7 +5,6 @@ using Object = UnityEngine.Object;
 #if ENABLE_COFFEE_LOGGER
 using System.Reflection;
 using System.Collections.Generic;
-
 #else
 using Conditional = System.Diagnostics.ConditionalAttribute;
 #endif
@@ -43,7 +42,6 @@ namespace Coffee.UIParticleInternal
 #endif
         }
 
-
 #if !ENABLE_COFFEE_LOGGER
         [Conditional(k_DisableSymbol)]
 #endif
@@ -53,7 +51,6 @@ namespace Coffee.UIParticleInternal
             Log_Internal(LogType.Log, tag, message, context ? context : tag as Object);
         }
 
-
 #if !ENABLE_COFFEE_LOGGER
         [Conditional(k_DisableSymbol)]
 #endif
@@ -62,7 +59,6 @@ namespace Coffee.UIParticleInternal
             Log_Internal(LogType.Log, tag, message, context ? context : tag as Object);
         }
 
-
 #if !ENABLE_COFFEE_LOGGER
         [Conditional(k_DisableSymbol)]
 #endif
@@ -80,7 +76,6 @@ namespace Coffee.UIParticleInternal
 #endif
         }
 
-
 #if !ENABLE_COFFEE_LOGGER
         [Conditional(k_DisableSymbol)]
 #endif
@@ -124,7 +119,6 @@ namespace Coffee.UIParticleInternal
 #endif
         }
 
-
 #if !ENABLE_COFFEE_LOGGER
         [Conditional(k_DisableSymbol)]
 #endif
@@ -141,6 +135,9 @@ namespace Coffee.UIParticleInternal
 
                 switch (tag)
                 {
+                    case string name:
+                        sb.Append(name);
+                        break;
                     case Type type:
                         AppendType(sb, type);
                         break;
@@ -167,7 +164,6 @@ namespace Coffee.UIParticleInternal
 #endif
         }
 
-
 #if !ENABLE_COFFEE_LOGGER
         [Conditional(k_DisableSymbol)]
 #endif
@@ -206,7 +202,6 @@ namespace Coffee.UIParticleInternal
 #endif
         }
 
-
 #if !ENABLE_COFFEE_LOGGER
         [Conditional(k_DisableSymbol)]
 #endif

Runtime/Internal/Utilities/MaterialRepository.cs

@@ -15,7 +15,7 @@ namespace Coffee.UIParticleInternal
 
 #if UNITY_EDITOR
         [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
-        private static void Clear()
+        public static void Clear()
         {
             s_Repository.Clear();
         }
@@ -55,7 +55,6 @@ namespace Coffee.UIParticleInternal
             Profiler.EndSample();
         }
 
-
         /// <summary>
         /// Adds or retrieves a cached material based on the hash.
         /// </summary>

Runtime/Internal/Utilities/Misc.cs

@@ -1,11 +1,27 @@
+using System;
 using System.Diagnostics;
 using UnityEditor;
 using UnityEngine;
+using Object = UnityEngine.Object;
+#if UNITY_EDITOR && UNITY_2021_2_OR_NEWER
+using UnityEditor.SceneManagement;
+#elif UNITY_EDITOR
+using UnityEditor.Experimental.SceneManagement;
+#endif
 
 namespace Coffee.UIParticleInternal
 {
     internal static class Misc
     {
+        public static T[] FindObjectsOfType<T>() where T : Object
+        {
+#if UNITY_2023_1_OR_NEWER
+            return Object.FindObjectsByType<T>(FindObjectsInactive.Include, FindObjectsSortMode.None);
+#else
+            return Object.FindObjectsOfType<T>();
+#endif
+        }
+
         public static void Destroy(Object obj)
         {
             if (!obj) return;
@@ -44,5 +60,17 @@ namespace Coffee.UIParticleInternal
             EditorUtility.SetDirty(obj);
 #endif
         }
+
+#if UNITY_EDITOR
+        public static T[] GetAllComponentsInPrefabStage<T>() where T : Component
+        {
+            var prefabStage = PrefabStageUtility.GetCurrentPrefabStage();
+            if (prefabStage == null) return Array.Empty<T>();
+
+            return prefabStage.prefabContentsRoot.GetComponentsInChildren<T>(true);
+        }
+
+        public static bool isBatchOrBuilding => Application.isBatchMode || BuildPipeline.isBuildingPlayer;
+#endif
     }
 }

Runtime/Internal/Utilities/Misc.cs.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 39ed6a6b0a72e482488bd298b2ae762e
+guid: 182319ecc315e4858b119764af0fbcb0
 MonoImporter:
   externalObjects: {}
   serializedVersion: 2

Runtime/Internal/Utilities/ObjectPool.cs

@@ -6,15 +6,58 @@ namespace Coffee.UIParticleInternal
     /// <summary>
     /// Object pool.
     /// </summary>
-    internal class ObjectPool<T>
+    internal class InternalObjectPool<T> where T : class
     {
+#if UNITY_2021_1_OR_NEWER
+        private readonly Predicate<T> _onValid; // Delegate for checking if instances are valid
+        private readonly UnityEngine.Pool.ObjectPool<T> _pool;
+
+        public InternalObjectPool(Func<T> onCreate, Predicate<T> onValid, Action<T> onReturn)
+        {
+            _pool = new UnityEngine.Pool.ObjectPool<T>(onCreate, null, onReturn);
+            _onValid = onValid;
+        }
+
+        /// <summary>
+        /// Rent an instance from the pool.
+        /// When you no longer need it, return it with <see cref="Return" />.
+        /// </summary>
+        public T Rent()
+        {
+            while (0 < _pool.CountInactive)
+            {
+                var instance = _pool.Get();
+                if (_onValid(instance))
+                {
+                    return instance;
+                }
+            }
+
+            // If there are no instances in the pool, create a new one.
+            Logging.Log(this, $"A new instance is created (pooled: {_pool.CountInactive}, created: {_pool.CountAll}).");
+            return _pool.Get();
+        }
+
+        /// <summary>
+        /// Return an instance to the pool and assign null.
+        /// Be sure to return the instance obtained with <see cref="Rent" /> with this method.
+        /// </summary>
+        public void Return(ref T instance)
+        {
+            if (instance == null) return; // Ignore if already pooled or null.
+
+            _pool.Release(instance);
+            Logging.Log(this, $"An instance is released (pooled: {_pool.CountInactive}, created: {_pool.CountAll}).");
+            instance = default; // Set the reference to null.
+        }
+#else
         private readonly Func<T> _onCreate; // Delegate for creating instances
         private readonly Action<T> _onReturn; // Delegate for returning instances to the pool
         private readonly Predicate<T> _onValid; // Delegate for checking if instances are valid
         private readonly Stack<T> _pool = new Stack<T>(32); // Object pool
         private int _count; // Total count of created instances
 
-        public ObjectPool(Func<T> onCreate, Predicate<T> onValid, Action<T> onReturn)
+        public InternalObjectPool(Func<T> onCreate, Predicate<T> onValid, Action<T> onReturn)
         {
             _onCreate = onCreate;
             _onValid = onValid;
@@ -54,15 +97,40 @@ namespace Coffee.UIParticleInternal
             Logging.Log(this, $"An instance is released (pooled: {_pool.Count}, created: {_count}).");
             instance = default; // Set the reference to null.
         }
+#endif
     }
 
     /// <summary>
     /// Object pool for <see cref="List{T}" />.
     /// </summary>
-    internal static class ListPool<T>
+    internal static class InternalListPool<T>
     {
-        private static readonly ObjectPool<List<T>> s_ListPool =
+#if UNITY_2021_1_OR_NEWER
-            new ObjectPool<List<T>>(() => new List<T>(), _ => true, x => x.Clear());
+        /// <summary>
+        /// Rent an instance from the pool.
+        /// When you no longer need it, return it with <see cref="Return" />.
+        /// </summary>
+        public static List<T> Rent()
+        {
+            return UnityEngine.Pool.ListPool<T>.Get();
+        }
+
+        /// <summary>
+        /// Return an instance to the pool and assign null.
+        /// Be sure to return the instance obtained with <see cref="Rent" /> with this method.
+        /// </summary>
+        public static void Return(ref List<T> toRelease)
+        {
+            if (toRelease != null)
+            {
+                UnityEngine.Pool.ListPool<T>.Release(toRelease);
+            }
+
+            toRelease = null;
+        }
+#else
+        private static readonly InternalObjectPool<List<T>> s_ListPool =
+            new InternalObjectPool<List<T>>(() => new List<T>(), _ => true, x => x.Clear());
 
         /// <summary>
         /// Rent an instance from the pool.
@@ -81,5 +149,6 @@ namespace Coffee.UIParticleInternal
         {
             s_ListPool.Return(ref toRelease);
         }
+#endif
     }
 }

Runtime/Internal/Utilities/ObjectRepository.cs

@@ -8,10 +8,11 @@ namespace Coffee.UIParticleInternal
 {
     internal class ObjectRepository<T> where T : Object
     {
-        private readonly List<Entry> _cache = new List<Entry>();
+        private readonly Dictionary<Hash128, Entry> _cache = new Dictionary<Hash128, Entry>(8);
+        private readonly Dictionary<int, Hash128> _objectKey = new Dictionary<int, Hash128>(8);
         private readonly string _name;
         private readonly Action<T> _onRelease;
-        private readonly Stack<Entry> _pool = new Stack<Entry>();
+        private readonly Stack<Entry> _pool = new Stack<Entry>(8);
 
         public ObjectRepository(Action<T> onRelease = null)
         {
@@ -36,40 +37,33 @@ namespace Coffee.UIParticleInternal
             {
                 _onRelease = onRelease;
             }
+
+            for (var i = 0; i < 8; i++)
+            {
+                _pool.Push(new Entry());
+            }
         }
 
         public int count => _cache.Count;
 
         public void Clear()
         {
-            for (var i = 0; i < _cache.Count; i++)
+            foreach (var kv in _cache)
             {
-                var entry = _cache[i];
+                var entry = kv.Value;
                 if (entry == null) continue;
 
                 entry.Release(_onRelease);
+                _pool.Push(entry);
             }
 
             _cache.Clear();
+            _objectKey.Clear();
         }
 
         public bool Valid(Hash128 hash, T obj)
         {
-            // Find existing entry.
+            return _cache.TryGetValue(hash, out var entry) && entry.storedObject == obj;
-            Profiler.BeginSample("(COF)[ObjectRepository] Valid > Find existing entry");
-            for (var i = 0; i < _cache.Count; ++i)
-            {
-                var entry = _cache[i];
-                if (entry.hash != hash) continue;
-                Profiler.EndSample();
-
-                // Existing entry found.
-                return entry.storedObject == obj;
-            }
-
-            Profiler.EndSample();
-
-            return false;
         }
 
         /// <summary>
@@ -77,41 +71,8 @@ namespace Coffee.UIParticleInternal
         /// </summary>
         public void Get(Hash128 hash, ref T obj, Func<T> onCreate)
         {
-            // Find existing entry.
+            if (GetFromCache(hash, ref obj)) return;
-            Profiler.BeginSample("(COF)[ObjectRepository] Get > Find existing entry");
+            Add(hash, ref obj, onCreate());
-            for (var i = 0; i < _cache.Count; ++i)
-            {
-                var entry = _cache[i];
-                if (entry.hash != hash) continue;
-
-                // Existing entry found.
-                if (entry.storedObject != obj)
-                {
-                    // if the object is different, release the old one.
-                    Release(ref obj);
-                    ++entry.reference;
-                    obj = entry.storedObject;
-                    Logging.Log(_name, $"Get(#{count}): {entry}");
-                }
-
-                Profiler.EndSample();
-                return;
-            }
-
-            Profiler.EndSample();
-
-            // Create new entry.
-            Profiler.BeginSample("(COF)[ObjectRepository] Get > Create new entry");
-            var newEntry = 0 < _pool.Count ? _pool.Pop() : new Entry();
-            newEntry.storedObject = onCreate();
-            newEntry.hash = hash;
-            newEntry.reference = 1;
-            _cache.Add(newEntry);
-            Logging.Log(_name, $"Get(#{count}): {newEntry}");
-
-            Release(ref obj);
-            obj = newEntry.storedObject;
-            Profiler.EndSample();
         }
 
         /// <summary>
@@ -119,40 +80,60 @@ namespace Coffee.UIParticleInternal
         /// </summary>
         public void Get<TS>(Hash128 hash, ref T obj, Func<TS, T> onCreate, TS source)
         {
-            // Find existing entry.
+            if (GetFromCache(hash, ref obj)) return;
-            Profiler.BeginSample("(COF)[ObjectRepository] Get > Find existing entry");
+            Add(hash, ref obj, onCreate(source));
-            for (var i = 0; i < _cache.Count; ++i)
+        }
-            {
+
-                var entry = _cache[i];
+        private bool GetFromCache(Hash128 hash, ref T obj)
-                if (entry.hash != hash) continue;
+        {
+            // Find existing entry.
+            Profiler.BeginSample("(COF)[ObjectRepository] GetFromCache");
+            if (_cache.TryGetValue(hash, out var entry))
+            {
+                if (!entry.storedObject)
+                {
+                    Release(ref entry.storedObject);
+                    Profiler.EndSample();
+                    return false;
+                }
 
-                // Existing entry found.
                 if (entry.storedObject != obj)
                 {
                     // if the object is different, release the old one.
                     Release(ref obj);
                     ++entry.reference;
                     obj = entry.storedObject;
-                    Logging.Log(_name, $"Get(#{count}): {entry}");
+                    Logging.Log(_name, $"Get(total#{count}): {entry}");
                 }
 
                 Profiler.EndSample();
-                return;
+                return true;
             }
 
             Profiler.EndSample();
+            return false;
+        }
 
-            // Create new entry.
+        private void Add(Hash128 hash, ref T obj, T newObject)
-            Profiler.BeginSample("(COF)[ObjectRepository] Get > Create new entry");
+        {
+            if (!newObject)
+            {
+                Release(ref obj);
+                obj = newObject;
+                return;
+            }
+
+            // Create and add a new entry.
+            Profiler.BeginSample("(COF)[ObjectRepository] Add");
             var newEntry = 0 < _pool.Count ? _pool.Pop() : new Entry();
-            newEntry.storedObject = onCreate(source);
+            newEntry.storedObject = newObject;
             newEntry.hash = hash;
             newEntry.reference = 1;
-            _cache.Add(newEntry);
+            _cache[hash] = newEntry;
-            Logging.Log(_name, $"Get(#{count}): {newEntry}");
+            _objectKey[newObject.GetInstanceID()] = hash;
-
+            Logging.Log(_name, $"<color=#03c700>Add</color>(total#{count}): {newEntry}");
             Release(ref obj);
-            obj = newEntry.storedObject;
+            obj = newObject;
             Profiler.EndSample();
         }
 
@@ -163,35 +144,45 @@ namespace Coffee.UIParticleInternal
         {
             if (ReferenceEquals(obj, null)) return;
 
+            // Find and release the entry.
             Profiler.BeginSample("(COF)[ObjectRepository] Release");
-            for (var i = 0; i < _cache.Count; i++)
+            var id = obj.GetInstanceID();
+            if (_objectKey.TryGetValue(id, out var hash)
+                && _cache.TryGetValue(hash, out var entry))
             {
-                var entry = _cache[i];
+                entry.reference--;
-
+                if (entry.reference <= 0 || !entry.storedObject)
-                if (entry.storedObject != obj)
                 {
-                    continue;
+                    Remove(entry);
                 }
-
+                else
-                if (--entry.reference <= 0)
                 {
-                    Profiler.BeginSample("(COF)[ObjectRepository] Release > RemoveAt");
+                    Logging.Log(_name, $"Release(total#{_cache.Count}): {entry}");
-                    _cache.RemoveAtFast(i);
-                    Logging.Log(_name, $"Release(#{_cache.Count}): {entry}");
-                    entry.Release(_onRelease);
-                    _pool.Push(entry);
-                    Profiler.EndSample();
-                    break;
                 }
-
+            }
-                Logging.Log(_name, $"Release(#{count}): {entry}");
+            else
-                break;
+            {
+                Logging.Log(_name, $"Release(total#{_cache.Count}): <color=red>Already released: {obj}</color>");
             }
 
             obj = null;
             Profiler.EndSample();
         }
 
+        private void Remove(Entry entry)
+        {
+            if (ReferenceEquals(entry, null)) return;
+
+            Profiler.BeginSample("(COF)[ObjectRepository] Remove");
+            _cache.Remove(entry.hash);
+            _objectKey.Remove(entry.storedObject.GetInstanceID());
+            _pool.Push(entry);
+            entry.reference = 0;
+            Logging.Log(_name, $"<color=#f29e03>Remove</color>(total#{_cache.Count}): {entry}");
+            entry.Release(_onRelease);
+            Profiler.EndSample();
+        }
+
         private class Entry
         {
             public Hash128 hash;
@@ -211,7 +202,7 @@ namespace Coffee.UIParticleInternal
 
             public override string ToString()
             {
-                return $"h{(uint)hash.GetHashCode()} (#{reference}), {storedObject}";
+                return $"h{(uint)hash.GetHashCode()} (refs#{reference}), {storedObject}";
             }
         }
     }

Runtime/Internal/Utilities/UIExtraCallbacks.cs

@@ -14,6 +14,8 @@ namespace Coffee.UIParticleInternal
         private static readonly FastAction s_AfterCanvasRebuildAction = new FastAction();
         private static readonly FastAction s_LateAfterCanvasRebuildAction = new FastAction();
         private static readonly FastAction s_BeforeCanvasRebuildAction = new FastAction();
+        private static readonly FastAction s_OnScreenSizeChangedAction = new FastAction();
+        private static Vector2Int s_LastScreenSize;
 
         static UIExtraCallbacks()
         {
@@ -48,6 +50,15 @@ namespace Coffee.UIParticleInternal
             remove => s_AfterCanvasRebuildAction.Remove(value);
         }
 
+        /// <summary>
+        /// Event that occurs when the screen size changes.
+        /// </summary>
+        public static event Action onScreenSizeChanged
+        {
+            add => s_OnScreenSizeChangedAction.Add(value);
+            remove => s_OnScreenSizeChangedAction.Remove(value);
+        }
+
         /// <summary>
         /// Initializes the UIExtraCallbacks to ensure proper event handling.
         /// </summary>
@@ -64,11 +75,12 @@ namespace Coffee.UIParticleInternal
 
 #if UNITY_EDITOR
         [InitializeOnLoadMethod]
-#else
-        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
 #endif
+        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
         private static void InitializeOnLoad()
         {
+            Canvas.willRenderCanvases -= OnAfterCanvasRebuild;
+            s_IsInitializedAfterCanvasRebuild = false;
         }
 
         /// <summary>
@@ -76,6 +88,17 @@ namespace Coffee.UIParticleInternal
         /// </summary>
         private static void OnBeforeCanvasRebuild()
         {
+            var screenSize = new Vector2Int(Screen.width, Screen.height);
+            if (s_LastScreenSize != screenSize)
+            {
+                if (s_LastScreenSize != default)
+                {
+                    s_OnScreenSizeChangedAction.Invoke();
+                }
+
+                s_LastScreenSize = screenSize;
+            }
+
             s_BeforeCanvasRebuildAction.Invoke();
             InitializeAfterCanvasRebuild();
         }

Runtime/UIParticle.cs

@@ -3,12 +3,14 @@ using System.Collections.Generic;
 using System.Runtime.CompilerServices;
 using Coffee.UIParticleInternal;
 using UnityEngine;
-using UnityEngine.EventSystems;
 using UnityEngine.Rendering;
 using UnityEngine.Serialization;
+using UnityEngine.UI;
 using Random = UnityEngine.Random;
 
 [assembly: InternalsVisibleTo("Coffee.UIParticle.Editor")]
+[assembly: InternalsVisibleTo("Coffee.UIParticle.PerformanceDemo")]
+[assembly: InternalsVisibleTo("Coffee.UIParticle.Demo")]
 
 namespace Coffee.UIExtensions
 {
@@ -18,7 +20,7 @@ namespace Coffee.UIExtensions
     [ExecuteAlways]
     [RequireComponent(typeof(RectTransform))]
     [RequireComponent(typeof(CanvasRenderer))]
-    public class UIParticle : UIBehaviour, ISerializationCallbackReceiver
+    public class UIParticle : MaskableGraphic, ISerializationCallbackReceiver
     {
         public enum AutoScalingMode
         {
@@ -58,12 +60,12 @@ namespace Coffee.UIExtensions
         [Obsolete]
         internal bool m_AbsoluteMode;
 
-        [Tooltip("Particle effect scale")]
+        [Tooltip("Scale the rendering particles. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.")]
         [SerializeField]
-        private Vector3 m_Scale3D = new Vector3(1, 1, 1);
+        private Vector3 m_Scale3D = new Vector3(10, 10, 10);
 
-        [Tooltip("Animatable material properties.\n" +
+        [Tooltip("If you want to update material properties (e.g. _MainTex_ST, _Color) in AnimationClip, " +
-                 "If you want to change the material properties of the ParticleSystem in Animation, enable it.")]
+                 "use this to mark as animatable.")]
         [SerializeField]
         internal AnimatableProperty[] m_AnimatableProperties = new AnimatableProperty[0];
 
@@ -71,12 +73,13 @@ namespace Coffee.UIExtensions
         [SerializeField]
         private List<ParticleSystem> m_Particles = new List<ParticleSystem>();
 
-        [Tooltip("Mesh sharing.\n" +
+        [Tooltip("Particle simulation results are shared within the same group. " +
-                 "None: disable mesh sharing.\n" +
+                 "A large number of the same effects can be displayed with a small load.\n" +
-                 "Auto: automatically select Primary/Replica.\n" +
+                 "None: Disable mesh sharing.\n" +
-                 "Primary: provides particle simulation results to the same group.\n" +
+                 "Auto: Automatically select Primary/Replica.\n" +
+                 "Primary: Provides particle simulation results to the same group.\n" +
                  "Primary Simulator: Primary, but do not render the particle (simulation only).\n" +
-                 "Replica: render simulation results provided by the primary.")]
+                 "Replica: Render simulation results provided by the primary.")]
         [SerializeField]
         private MeshSharing m_MeshSharing = MeshSharing.None;
 
@@ -88,67 +91,53 @@ namespace Coffee.UIExtensions
         [SerializeField]
         private int m_GroupMaxId;
 
-        [Tooltip("Relative: The particles will be emitted from the scaled position of ParticleSystem.\n" +
+        [Tooltip("Emission position mode.\n" +
-                 "Absolute: The particles will be emitted from the world position of ParticleSystem.")]
+                 "Relative: The particles will be emitted from the scaled position.\n" +
+                 "Absolute: The particles will be emitted from the world position.")]
         [SerializeField]
         private PositionMode m_PositionMode = PositionMode.Relative;
 
         [SerializeField]
-        [Tooltip("Prevent the root-Canvas scale from affecting the hierarchy-scaled ParticleSystem.")]
         [Obsolete]
         internal bool m_AutoScaling;
 
         [SerializeField]
-        [Tooltip("Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1)." +
+        [Tooltip(
-                 "UIParticle: UIParticle.scale will be adjusted.")]
+            "How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.\n" +
+            "None: Do nothing.\n" +
+            "Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1).\n" +
+            "UIParticle: UIParticle.scale will be adjusted.")]
         private AutoScalingMode m_AutoScalingMode = AutoScalingMode.Transform;
 
         [SerializeField]
-        private bool m_Maskable = true;
+        [Tooltip("Use a custom view.\n" +
+                 "Use this if the particles are not displayed correctly due to min/max particle size.")]
+        private bool m_UseCustomView;
+
+        [SerializeField]
+        [Tooltip("Custom view size.\n" +
+                 "Change the bake view size.")]
+        private float m_CustomViewSize = 10;
 
         private readonly List<UIParticleRenderer> _renderers = new List<UIParticleRenderer>();
-        private Canvas _canvas;
-        private int _groupId;
         private Camera _bakeCamera;
-        private DrivenRectTransformTracker _tracker;
+        private int _groupId;
-        private Vector3 _storedScale;
         private bool _isScaleStored;
-
+        private Vector3 _storedScale;
-        public RectTransform rectTransform => transform as RectTransform;
+        private DrivenRectTransformTracker _tracker;
-
-        public Canvas canvas
-        {
-            get
-            {
-                if (_canvas) return _canvas;
-
-                var tr = transform;
-                while (tr && !_canvas)
-                {
-                    if (tr.TryGetComponent(out _canvas)) return _canvas;
-                    tr = tr.parent;
-                }
-
-                return null;
-            }
-        }
 
         /// <summary>
-        /// Does this graphic allow masking.
+        /// Should this graphic be considered a target for ray-casting?
         /// </summary>
-        public bool maskable
+        public override bool raycastTarget
         {
-            get => m_Maskable;
+            get => false;
-            set
+            set { }
-            {
-                if (value == m_Maskable) return;
-                m_Maskable = value;
-                UpdateRendererMaterial();
-            }
         }
 
         /// <summary>
-        /// Mesh sharing.
+        /// Particle simulation results are shared within the same group.
+        /// A large number of the same effects can be displayed with a small load.
         /// None: disable mesh sharing.
         /// Auto: automatically select Primary/Replica.
         /// Primary: provides particle simulation results to the same group.
@@ -191,9 +180,9 @@ namespace Coffee.UIExtensions
         }
 
         /// <summary>
-        /// Particle position mode.
+        /// Emission position mode.
-        /// Relative: The particles will be emitted from the scaled position of the ParticleSystem.
+        /// Relative: The particles will be emitted from the scaled position.
-        /// Absolute: The particles will be emitted from the world position of the ParticleSystem.
+        /// Absolute: The particles will be emitted from the world position.
         /// </summary>
         public PositionMode positionMode
         {
@@ -206,6 +195,7 @@ namespace Coffee.UIExtensions
         /// Relative: The particles will be emitted from the scaled position of the ParticleSystem.
         /// Absolute: The particles will be emitted from the world position of the ParticleSystem.
         /// </summary>
+        [Obsolete("The absoluteMode is now obsolete. Please use the autoScalingMode instead.", false)]
         public bool absoluteMode
         {
             get => m_PositionMode == PositionMode.Absolute;
@@ -223,8 +213,12 @@ namespace Coffee.UIExtensions
         }
 
         /// <summary>
-        /// Auto scaling mode.
+        /// How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.
+        /// <para/>
+        /// None: Do nothing.
+        /// <para/>
         /// Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1).
+        /// <para/>
         /// UIParticle: UIParticle.scale will be adjusted.
         /// </summary>
         public AutoScalingMode autoScalingMode
@@ -243,6 +237,26 @@ namespace Coffee.UIExtensions
             }
         }
 
+        /// <summary>
+        /// Use a custom view.
+        /// Use this if the particles are not displayed correctly due to min/max particle size.
+        /// </summary>
+        public bool useCustomView
+        {
+            get => m_UseCustomView;
+            set => m_UseCustomView = value;
+        }
+
+        /// <summary>
+        /// Custom view size.
+        /// Change the bake view size.
+        /// </summary>
+        public float customViewSize
+        {
+            get => m_CustomViewSize;
+            set => m_CustomViewSize = Mathf.Max(0.1f, value);
+        }
+
         internal bool useMeshSharing => m_MeshSharing != MeshSharing.None;
 
         internal bool isPrimary =>
@@ -288,22 +302,6 @@ namespace Coffee.UIExtensions
 
         public List<ParticleSystem> particles => m_Particles;
 
-        /// <summary>
-        /// Get all base materials to render.
-        /// </summary>
-        public IEnumerable<Material> materials
-        {
-            get
-            {
-                for (var i = 0; i < _renderers.Count; i++)
-                {
-                    var r = _renderers[i];
-                    if (!r || !r.material) continue;
-                    yield return r.material;
-                }
-            }
-        }
-
         /// <summary>
         /// Paused.
         /// </summary>
@@ -311,15 +309,15 @@ namespace Coffee.UIExtensions
 
         public Vector3 parentScale { get; private set; }
 
-        private Vector3 canvasScale { get; set; }
+        public Vector3 canvasScale { get; private set; }
 
         protected override void OnEnable()
         {
             _isScaleStored = false;
             ResetGroupId();
             UIParticleUpdater.Register(this);
+            RegisterDirtyMaterialCallback(UpdateRendererMaterial);
 
-            //
             if (0 < particles.Count)
             {
                 RefreshParticles(particles);
@@ -329,7 +327,7 @@ namespace Coffee.UIExtensions
                 RefreshParticles();
             }
 
-            UpdateRendererMaterial();
+            base.OnEnable();
         }
 
         /// <summary>
@@ -346,15 +344,9 @@ namespace Coffee.UIExtensions
             _isScaleStored = false;
             UIParticleUpdater.Unregister(this);
             _renderers.ForEach(r => r.Reset());
-            _canvas = null;
+            UnregisterDirtyMaterialCallback(UpdateRendererMaterial);
-        }
 
-        /// <summary>
+            base.OnDisable();
-        /// Called when the state of the parent Canvas is changed.
-        /// </summary>
-        protected override void OnCanvasHierarchyChanged()
-        {
-            _canvas = null;
         }
 
         /// <summary>
@@ -364,14 +356,6 @@ namespace Coffee.UIExtensions
         {
         }
 
-        /// <summary>
-        /// This function is called when a direct or indirect parent of the transform of the GameObject has changed.
-        /// </summary>
-        protected override void OnTransformParentChanged()
-        {
-            _canvas = null;
-        }
-
         void ISerializationCallbackReceiver.OnBeforeSerialize()
         {
         }
@@ -462,6 +446,21 @@ namespace Coffee.UIExtensions
             isPaused = true;
         }
 
+        /// <summary>
+        /// Get all base materials to render.
+        /// </summary>
+        public void GetMaterials(List<Material> result)
+        {
+            if (result == null) return;
+
+            for (var i = 0; i < _renderers.Count; i++)
+            {
+                var r = _renderers[i];
+                if (!r || !r.material) continue;
+                result.Add(r.material);
+            }
+        }
+
         /// <summary>
         /// Refresh UIParticle using the ParticleSystem instance.
         /// </summary>
@@ -481,6 +480,9 @@ namespace Coffee.UIExtensions
             for (var i = 0; i < childCount; i++)
             {
                 var go = transform.GetChild(i).gameObject;
+                if (go.TryGetComponent<Camera>(out var cam) && cam == _bakeCamera) continue;
+                if (go.TryGetComponent<UIParticleRenderer>(out var _)) continue;
+
                 go.SetActive(false);
                 if (destroyOldParticles)
                 {
@@ -575,12 +577,14 @@ namespace Coffee.UIExtensions
             {
                 var ps = particleSystems[i];
                 if (!ps) continue;
-                GetRenderer(j++).Set(this, ps, false);
+
+                var mainEmitter = ps.GetMainEmitter(particleSystems);
+                GetRenderer(j++).Set(this, ps, false, mainEmitter);
 
                 // If the trail is enabled, set it additionally.
                 if (ps.trails.enabled)
                 {
-                    GetRenderer(j++).Set(this, ps, true);
+                    GetRenderer(j++).Set(this, ps, true, mainEmitter);
                 }
             }
         }
@@ -602,8 +606,12 @@ namespace Coffee.UIExtensions
             }
 
             var currentScale = transform.localScale;
-            _storedScale = currentScale;
+            if (!_isScaleStored)
-            _isScaleStored = true;
+            {
+                _storedScale = currentScale.IsVisible() ? currentScale : Vector3.one;
+                _isScaleStored = true;
+            }
+
             _tracker.Add(this, rectTransform, DrivenTransformProperties.Scale);
             var newScale = parentScale.Inverse();
             if (currentScale != newScale)
@@ -642,6 +650,17 @@ namespace Coffee.UIExtensions
                 : Random.Range(m_GroupId, m_GroupMaxId + 1);
         }
 
+        protected override void UpdateMaterial()
+        {
+        }
+
+        /// <summary>
+        /// Call to update the geometry of the Graphic onto the CanvasRenderer.
+        /// </summary>
+        protected override void UpdateGeometry()
+        {
+        }
+
         private void UpdateRendererMaterial()
         {
             for (var i = 0; i < _renderers.Count; i++)
@@ -671,7 +690,16 @@ namespace Coffee.UIExtensions
         private Camera GetBakeCamera()
         {
             if (!canvas) return Camera.main;
-            if (_bakeCamera) return _bakeCamera;
+            if (!useCustomView && canvas.renderMode != RenderMode.ScreenSpaceOverlay && canvas.rootCanvas.worldCamera)
+            {
+                return canvas.rootCanvas.worldCamera;
+            }
+
+            if (_bakeCamera)
+            {
+                _bakeCamera.orthographicSize = useCustomView ? customViewSize : 10;
+                return _bakeCamera;
+            }
 
             // Find existing baking camera.
             var childCount = transform.childCount;
@@ -688,10 +716,7 @@ namespace Coffee.UIExtensions
             // Create baking camera.
             if (!_bakeCamera)
             {
-                var go = new GameObject("[generated] UIParticle BakingCamera")
+                var go = new GameObject("[generated] UIParticle BakingCamera");
-                {
-                    hideFlags = HideFlags.HideAndDontSave
-                };
                 go.SetActive(false);
                 go.transform.SetParent(transform, false);
                 _bakeCamera = go.AddComponent<Camera>();
@@ -699,7 +724,7 @@ namespace Coffee.UIExtensions
 
             // Setup baking camera.
             _bakeCamera.enabled = false;
-            _bakeCamera.orthographicSize = 1000;
+            _bakeCamera.orthographicSize = useCustomView ? customViewSize : 10;
             _bakeCamera.transform.SetPositionAndRotation(new Vector3(0, 0, -1000), Quaternion.identity);
             _bakeCamera.orthographic = true;
             _bakeCamera.farClipPlane = 2000f;
@@ -710,6 +735,9 @@ namespace Coffee.UIExtensions
             _bakeCamera.renderingPath = RenderingPath.Forward;
             _bakeCamera.useOcclusionCulling = false;
 
+            _bakeCamera.gameObject.SetActive(false);
+            _bakeCamera.gameObject.hideFlags = UIParticleProjectSettings.globalHideFlags;
+
             return _bakeCamera;
         }
     }

Runtime/UIParticleAttractor.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using Coffee.UIParticleInternal;
 using UnityEngine;
 using UnityEngine.Events;
@@ -6,7 +7,7 @@ using UnityEngine.Events;
 namespace Coffee.UIExtensions
 {
     [ExecuteAlways]
-    public class UIParticleAttractor : MonoBehaviour
+    public class UIParticleAttractor : MonoBehaviour, ISerializationCallbackReceiver
     {
         public enum Movement
         {
@@ -22,8 +23,12 @@ namespace Coffee.UIExtensions
         }
 
         [SerializeField]
+        [HideInInspector]
         private ParticleSystem m_ParticleSystem;
 
+        [SerializeField]
+        private List<ParticleSystem> m_ParticleSystems = new List<ParticleSystem>();
+
         [Range(0.1f, 10f)]
         [SerializeField]
         private float m_DestinationRadius = 1;
@@ -45,7 +50,7 @@ namespace Coffee.UIExtensions
         [SerializeField]
         private UnityEvent m_OnAttracted;
 
-        private UIParticle _uiParticle;
+        private List<UIParticle> _uiParticles = new List<UIParticle>();
 
         public float destinationRadius
         {
@@ -84,25 +89,46 @@ namespace Coffee.UIExtensions
         }
 
         /// <summary>
-        /// The target ParticleSystem to attract.
+        /// The target ParticleSystems to attract. Use <see cref="AddParticleSystem"/> and
+        /// <see cref="RemoveParticleSystem"/> to modify the list.
         /// </summary>
-#if UNITY_EDITOR
+        public IReadOnlyList<ParticleSystem> particleSystems => m_ParticleSystems;
-        public new ParticleSystem particleSystem
+
-#else
+        public void AddParticleSystem(ParticleSystem ps)
-        public ParticleSystem particleSystem
-#endif
         {
-            get => m_ParticleSystem;
+            if (m_ParticleSystems == null)
-            set
             {
-                m_ParticleSystem = value;
+                m_ParticleSystems = new List<ParticleSystem>();
-                ApplyParticleSystem();
             }
+
+            var i = m_ParticleSystems.IndexOf(ps);
+            if (0 <= i) return; // Already added: skip
+
+            m_ParticleSystems.Add(ps);
+            _uiParticles.Clear();
+        }
+
+        public void RemoveParticleSystem(ParticleSystem ps)
+        {
+            if (m_ParticleSystems == null)
+            {
+                return;
+            }
+
+            var i = m_ParticleSystems.IndexOf(ps);
+            if (i < 0) return; // Not found. skip
+
+            m_ParticleSystems.RemoveAt(i);
+            _uiParticles.Clear();
+        }
+
+        private void Awake()
+        {
+            UpgradeIfNeeded();
         }
 
         private void OnEnable()
         {
-            ApplyParticleSystem();
             UIParticleUpdater.Register(this);
         }
 
@@ -113,85 +139,96 @@ namespace Coffee.UIExtensions
 
         private void OnDestroy()
         {
-            _uiParticle = null;
+            _uiParticles = null;
-            m_ParticleSystem = null;
+            m_ParticleSystems = null;
         }
 
         internal void Attract()
         {
-            if (m_ParticleSystem == null) return;
+            // Collect UIParticle if needed (same size as m_ParticleSystems)
+            CollectUIParticlesIfNeeded();
 
-            var count = m_ParticleSystem.particleCount;
+            for (var particleIndex = 0; particleIndex < m_ParticleSystems.Count; particleIndex++)
-            if (count == 0) return;
-
-            var particles = ParticleSystemExtensions.GetParticleArray(count);
-            m_ParticleSystem.GetParticles(particles, count);
-
-            var dstPos = GetDestinationPosition();
-            for (var i = 0; i < count; i++)
             {
-                // Attracted
+                var particleSystem = m_ParticleSystems[particleIndex];
-                var p = particles[i];
-                if (0f < p.remainingLifetime && Vector3.Distance(p.position, dstPos) < m_DestinationRadius)
-                {
-                    p.remainingLifetime = 0f;
-                    particles[i] = p;
 
-                    if (m_OnAttracted != null)
+                // Skip: The ParticleSystem is not active
+                if (particleSystem == null || !particleSystem.gameObject.activeInHierarchy) continue;
+
+                // Skip: No active particles
+                var count = particleSystem.particleCount;
+                if (count == 0) continue;
+
+                var particles = ParticleSystemExtensions.GetParticleArray(count);
+                particleSystem.GetParticles(particles, count);
+
+                var uiParticle = _uiParticles[particleIndex];
+                var dstPos = GetDestinationPosition(uiParticle, particleSystem);
+                for (var i = 0; i < count; i++)
+                {
+                    // Attracted
+                    var p = particles[i];
+                    if (0f < p.remainingLifetime && Vector3.Distance(p.position, dstPos) < m_DestinationRadius)
                     {
-                        try
+                        p.remainingLifetime = 0f;
+                        particles[i] = p;
+
+                        if (m_OnAttracted != null)
                         {
-                            m_OnAttracted.Invoke();
+                            try
-                        }
+                            {
-                        catch (Exception e)
+                                m_OnAttracted.Invoke();
-                        {
+                            }
-                            Debug.LogException(e);
+                            catch (Exception e)
+                            {
+                                Debug.LogException(e);
+                            }
                         }
+
+                        continue;
                     }
 
-                    continue;
+                    // Calc attracting time
+                    var delayTime = p.startLifetime * m_DelayRate;
+                    var duration = p.startLifetime - delayTime;
+                    var time = Mathf.Max(0, p.startLifetime - p.remainingLifetime - delayTime);
+
+                    // Delay
+                    if (time <= 0) continue;
+
+                    // Attract
+                    p.position = GetAttractedPosition(p.position, dstPos, duration, time);
+                    p.velocity *= 0.5f;
+                    particles[i] = p;
                 }
 
-                // Calc attracting time
+                particleSystem.SetParticles(particles, count);
-                var delayTime = p.startLifetime * m_DelayRate;
-                var duration = p.startLifetime - delayTime;
-                var time = Mathf.Max(0, p.startLifetime - p.remainingLifetime - delayTime);
-
-                // Delay
-                if (time <= 0) continue;
-
-                // Attract
-                p.position = GetAttractedPosition(p.position, dstPos, duration, time);
-                p.velocity *= 0.5f;
-                particles[i] = p;
             }
-
-            m_ParticleSystem.SetParticles(particles, count);
         }
 
-        private Vector3 GetDestinationPosition()
+        private Vector3 GetDestinationPosition(UIParticle uiParticle, ParticleSystem particleSystem)
         {
-            var isUI = _uiParticle && _uiParticle.enabled;
+            var isUI = uiParticle && uiParticle.enabled;
-            var psPos = m_ParticleSystem.transform.position;
+            var psPos = particleSystem.transform.position;
             var attractorPos = transform.position;
             var dstPos = attractorPos;
-            var isLocalSpace = m_ParticleSystem.IsLocalSpace();
+            var isLocalSpace = particleSystem.IsLocalSpace();
 
             if (isLocalSpace)
             {
-                dstPos = m_ParticleSystem.transform.InverseTransformPoint(dstPos);
+                dstPos = particleSystem.transform.InverseTransformPoint(dstPos);
             }
 
             if (isUI)
             {
-                var inverseScale = _uiParticle.parentScale.Inverse();
+                var inverseScale = uiParticle.parentScale.Inverse();
-                var scale3d = _uiParticle.scale3DForCalc;
+                var scale3d = uiParticle.scale3DForCalc;
                 dstPos = dstPos.GetScaled(inverseScale, scale3d.Inverse());
 
                 // Relative mode
-                if (_uiParticle.positionMode == UIParticle.PositionMode.Relative)
+                if (uiParticle.positionMode == UIParticle.PositionMode.Relative)
                 {
-                    var diff = _uiParticle.transform.position - psPos;
+                    var diff = uiParticle.transform.position - psPos;
                     diff.Scale(scale3d - inverseScale);
                     diff.Scale(scale3d.Inverse());
                     dstPos += diff;
@@ -237,25 +274,59 @@ namespace Coffee.UIExtensions
             return Vector3.MoveTowards(current, target, speed);
         }
 
-        private void ApplyParticleSystem()
+        private void CollectUIParticlesIfNeeded()
         {
-            _uiParticle = null;
+            if (m_ParticleSystems.Count == 0 || _uiParticles.Count != 0) return;
-            if (m_ParticleSystem == null)
-            {
-#if UNITY_EDITOR
-                if (Application.isPlaying)
-#endif
-                {
-                    Debug.LogError("No particle system attached to particle attractor script", this);
-                }
 
-                return;
+            // Expand capacity
+            if (_uiParticles.Capacity < m_ParticleSystems.Capacity)
+            {
+                _uiParticles.Capacity = m_ParticleSystems.Capacity;
             }
 
-            _uiParticle = m_ParticleSystem.GetComponentInParent<UIParticle>(true);
+            // Find UIParticle that controls the ParticleSystem
-            if (_uiParticle && !_uiParticle.particles.Contains(m_ParticleSystem))
+            for (var i = 0; i < m_ParticleSystems.Count; i++)
             {
-                _uiParticle = null;
+                var ps = m_ParticleSystems[i];
+                if (ps == null)
+                {
+                    _uiParticles.Add(null);
+                    continue;
+                }
+
+                var uiParticle = ps.GetComponentInParent<UIParticle>(true);
+                _uiParticles.Add(uiParticle.particles.Contains(ps) ? uiParticle : null);
+            }
+        }
+
+#if UNITY_EDITOR
+        private void OnValidate()
+        {
+            _uiParticles.Clear();
+        }
+#endif
+
+        void ISerializationCallbackReceiver.OnBeforeSerialize()
+        {
+            UpgradeIfNeeded();
+        }
+
+        void ISerializationCallbackReceiver.OnAfterDeserialize()
+        {
+        }
+
+        private void UpgradeIfNeeded()
+        {
+            // Multiple ParticleSystems support: from 'm_ParticleSystem' to 'm_ParticleSystems'
+            if (m_ParticleSystem != null)
+            {
+                if (!m_ParticleSystems.Contains(m_ParticleSystem))
+                {
+                    m_ParticleSystems.Add(m_ParticleSystem);
+                }
+
+                m_ParticleSystem = null;
+                Debug.Log($"Upgraded!");
             }
         }
     }

Runtime/UIParticleAttractor.cs.meta

@@ -5,7 +5,7 @@ MonoImporter:
   serializedVersion: 2
   defaultReferences: []
   executionOrder: 0
-  icon: {instanceID: 0}
+  icon: {fileID: 2800000, guid: 5f0675613942149309588d556e33d990, type: 3}
   userData: 
   assetBundleName: 
   assetBundleVariant: 

Runtime/UIParticleProjectSettings.cs

@@ -17,6 +17,18 @@ namespace Coffee.UIExtensions
             set => instance.m_EnableLinearToGamma = value;
         }
 
+
+        [Header("Editor")]
+        [Tooltip("Hide the automatically generated objects.\n" +
+                 "  - UIParticleRenderer\n" +
+                 "  - UIParticle BakingCamera")]
+        [SerializeField]
+        private bool m_HideGeneratedObjects = true;
+
+        public static HideFlags globalHideFlags => instance.m_HideGeneratedObjects
+            ? HideFlags.DontSave | HideFlags.NotEditable | HideFlags.HideInHierarchy | HideFlags.HideInInspector
+            : HideFlags.DontSave | HideFlags.NotEditable;
+
 #if UNITY_EDITOR
         [SettingsProvider]
         private static SettingsProvider CreateSettingsProvider()

Runtime/UIParticleProjectSettings.cs.meta

@@ -5,7 +5,7 @@ MonoImporter:
   serializedVersion: 2
   defaultReferences: []
   executionOrder: 0
-  icon: {instanceID: 0}
+  icon: {fileID: 2800000, guid: 5f0675613942149309588d556e33d990, type: 3}
   userData: 
   assetBundleName: 
   assetBundleVariant: 

Runtime/UIParticleRenderer.cs

@@ -4,7 +4,6 @@
 #elif UNITY_2022_3_OR_NEWER
 #define PS_BAKE_API_V2
 #endif
-
 using System;
 using System.Collections.Generic;
 using Coffee.UIParticleInternal;
@@ -25,10 +24,10 @@ namespace Coffee.UIExtensions
         private static readonly CombineInstance[] s_CombineInstances = { new CombineInstance() };
         private static readonly List<Material> s_Materials = new List<Material>(2);
         private static MaterialPropertyBlock s_Mpb;
-        private static readonly List<UIParticleRenderer> s_Renderers = new List<UIParticleRenderer>(8);
         private static readonly Vector3[] s_Corners = new Vector3[4];
         private bool _delay;
         private int _index;
+        private bool _isPrevStored;
         private bool _isTrail;
         private Bounds _lastBounds;
         private Material _materialForRendering;
@@ -38,10 +37,10 @@ namespace Coffee.UIExtensions
         private float _prevCanvasScale;
         private Vector3 _prevPsPos;
         private Vector3 _prevScale;
-        private bool _isPrevStored;
         private Vector2Int _prevScreenSize;
         private bool _preWarm;
         private ParticleSystemRenderer _renderer;
+        private ParticleSystem _mainEmitter;
 
         public override Texture mainTexture => _isTrail ? null : _particleSystem.GetTextureForSprite();
 
@@ -114,6 +113,7 @@ namespace Coffee.UIExtensions
             _parent = null;
             _particleSystem = null;
             _renderer = null;
+            _mainEmitter = null;
             if (0 <= index)
             {
                 _index = index;
@@ -138,6 +138,7 @@ namespace Coffee.UIExtensions
         {
             base.OnEnable();
 
+            hideFlags = UIParticleProjectSettings.globalHideFlags;
             if (!s_CombineInstances[0].mesh)
             {
                 s_CombineInstances[0].mesh = new Mesh
@@ -162,7 +163,7 @@ namespace Coffee.UIExtensions
             // Create renderer object.
             var go = new GameObject("[generated] UIParticleRenderer", typeof(UIParticleRenderer))
             {
-                hideFlags = HideFlags.HideAndDontSave,
+                hideFlags = UIParticleProjectSettings.globalHideFlags,
                 layer = parent.gameObject.layer
             };
 
@@ -202,7 +203,6 @@ namespace Coffee.UIExtensions
                 return modifiedMaterial;
             }
 
-            //
             var hash = new Hash128(
                 modifiedMaterial ? (uint)modifiedMaterial.GetInstanceID() : 0,
                 texture ? (uint)texture.GetInstanceID() : 0,
@@ -225,7 +225,7 @@ namespace Coffee.UIExtensions
             return _modifiedMaterial;
         }
 
-        public void Set(UIParticle parent, ParticleSystem ps, bool isTrail)
+        public void Set(UIParticle parent, ParticleSystem ps, bool isTrail, ParticleSystem mainEmitter)
         {
             _parent = parent;
             maskable = parent.maskable;
@@ -248,10 +248,7 @@ namespace Coffee.UIExtensions
 
             ps.TryGetComponent(out _renderer);
             _renderer.enabled = false;
-
-            //_emitter = emitter;
             _isTrail = isTrail;
-
             _renderer.GetSharedMaterials(s_Materials);
             material = s_Materials[isTrail ? 1 : 0];
             s_Materials.Clear();
@@ -268,6 +265,7 @@ namespace Coffee.UIExtensions
             _prevScreenSize = new Vector2Int(Screen.width, Screen.height);
             _prevCanvasScale = canvas ? canvas.scaleFactor : 1f;
             _delay = true;
+            _mainEmitter = mainEmitter;
 
             canvasRenderer.SetTexture(null);
 
@@ -305,7 +303,7 @@ namespace Coffee.UIExtensions
 
             // Simulate particles.
             Profiler.BeginSample("[UIParticle] Bake Mesh > Simulate Particles");
-            if (!_isTrail && _parent.canSimulate)
+            if (!_isTrail && _parent.canSimulate && !_mainEmitter)
             {
 #if UNITY_EDITOR
                 if (!Application.isPlaying)
@@ -423,17 +421,16 @@ namespace Coffee.UIExtensions
                     workerMesh.LinearToGamma();
                 }
 
-                var components = ListPool<Component>.Rent();
+                var components = InternalListPool<Component>.Rent();
                 GetComponents(typeof(IMeshModifier), components);
-
-#pragma warning disable CS0618 // Type or member is obsolete
                 for (var i = 0; i < components.Count; i++)
                 {
+#pragma warning disable CS0618 // Type or member is obsolete
                     ((IMeshModifier)components[i]).ModifyMesh(workerMesh);
-                }
 #pragma warning restore CS0618 // Type or member is obsolete
+                }
 
-                ListPool<Component>.Return(ref components);
+                InternalListPool<Component>.Return(ref components);
             }
 
             Profiler.EndSample();
@@ -445,22 +442,25 @@ namespace Coffee.UIExtensions
 
             // Get grouped renderers.
             Profiler.BeginSample("[UIParticleRenderer] Set Mesh");
-            s_Renderers.Clear();
+            var renderers = InternalListPool<UIParticleRenderer>.Rent();
             if (_parent.useMeshSharing)
             {
-                UIParticleUpdater.GetGroupedRenderers(_parent.groupId, _index, s_Renderers);
+                UIParticleUpdater.GetGroupedRenderers(_parent.groupId, _index, renderers);
             }
 
-            for (var i = 0; i < s_Renderers.Count; i++)
+            for (var i = 0; i < renderers.Count; i++)
             {
-                if (s_Renderers[i] == this) continue;
+                var r = renderers[i];
+                if (r == this) continue;
 
-                s_Renderers[i].canvasRenderer.SetMesh(workerMesh);
+                r.canvasRenderer.SetMesh(workerMesh);
-                s_Renderers[i]._lastBounds = _lastBounds;
+                r._lastBounds = _lastBounds;
-                s_Renderers[i].canvasRenderer.materialCount = 1;
+                r.canvasRenderer.materialCount = 1;
-                s_Renderers[i].canvasRenderer.SetMaterial(materialForRendering, 0);
+                r.canvasRenderer.SetMaterial(materialForRendering, 0);
             }
 
+            InternalListPool<UIParticleRenderer>.Return(ref renderers);
+
             if (_parent.canRender)
             {
                 canvasRenderer.SetMesh(workerMesh);
@@ -471,8 +471,6 @@ namespace Coffee.UIExtensions
             }
 
             Profiler.EndSample();
-
-            s_Renderers.Clear();
         }
 
         public override void SetMaterialDirty()
@@ -544,6 +542,30 @@ namespace Coffee.UIExtensions
                     return Matrix4x4.Translate(psPos)
                            * Matrix4x4.Scale(scale);
                 case ParticleSystemSimulationSpace.World:
+                    if (_isTrail)
+                    {
+                        return Matrix4x4.Translate(psPos)
+                               * Matrix4x4.Scale(scale)
+                               * Matrix4x4.Translate(-psPos);
+                    }
+
+                    if (_mainEmitter)
+                    {
+                        if (_mainEmitter.IsLocalSpace())
+                        {
+                            return Matrix4x4.Translate(psPos)
+                                   * Matrix4x4.Scale(scale)
+                                   * Matrix4x4.Translate(-psPos);
+                        }
+                        else
+                        {
+                            psPos = _particleSystem.transform.position - _mainEmitter.transform.position;
+                            return Matrix4x4.Translate(psPos)
+                                   * Matrix4x4.Scale(scale)
+                                   * Matrix4x4.Translate(-psPos);
+                        }
+                    }
+
                     return Matrix4x4.Scale(scale);
                 case ParticleSystemSimulationSpace.Custom:
                     return Matrix4x4.Translate(_particleSystem.main.customSimulationSpace.position.GetScaled(scale))

Runtime/UIParticleRenderer.cs.meta

@@ -5,7 +5,7 @@ MonoImporter:
   serializedVersion: 2
   defaultReferences: []
   executionOrder: 0
-  icon: {instanceID: 0}
+  icon: {fileID: 2800000, guid: 5f0675613942149309588d556e33d990, type: 3}
   userData: 
   assetBundleName: 
   assetBundleVariant: 

Runtime/UIParticleUpdater.cs

@@ -40,13 +40,26 @@ namespace Coffee.UIExtensions
 
 #if UNITY_EDITOR
         [InitializeOnLoadMethod]
+        private static void InitializeOnLoad()
+        {
+            UIExtraCallbacks.onAfterCanvasRebuild += Refresh;
+
+            EditorApplication.playModeStateChanged += state =>
+            {
+                UIExtraCallbacks.onAfterCanvasRebuild -= Refresh;
+                if (state == PlayModeStateChange.EnteredEditMode || state == PlayModeStateChange.EnteredPlayMode)
+                {
+                    UIExtraCallbacks.onAfterCanvasRebuild += Refresh;
+                }
+            };
+        }
 #else
         [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
-#endif
         private static void InitializeOnLoad()
         {
             UIExtraCallbacks.onAfterCanvasRebuild += Refresh;
         }
+#endif
 
         private static void Refresh()
         {

Runtime/Utilities/ParticleSystemExtensions.cs

@@ -171,5 +171,30 @@ namespace Coffee.UIParticleInternal
                 action.Invoke(p);
             }
         }
+
+        public static ParticleSystem GetMainEmitter(this ParticleSystem self, List<ParticleSystem> list)
+        {
+            if (!self || list == null || list.Count == 0) return null;
+
+            for (var i = 0; i < list.Count; i++)
+            {
+                var parent = list[i];
+                if (parent != self && IsSubEmitterOf(self, parent)) return parent;
+            }
+
+            return null;
+        }
+
+        public static bool IsSubEmitterOf(this ParticleSystem self, ParticleSystem parent)
+        {
+            var subEmitters = parent.subEmitters;
+            var count = subEmitters.subEmittersCount;
+            for (var i = 0; i < count; i++)
+            {
+                if (subEmitters.GetSubEmitterSystem(i) == self) return true;
+            }
+
+            return false;
+        }
     }
 }

Samples~/Demo/Scripts/UIParticle_Demo.cs

@@ -1,3 +1,4 @@
+using Coffee.UIParticleInternal;
 using UnityEngine;
 using UnityEngine.Serialization;
 using UnityEngine.UI;
@@ -51,7 +52,7 @@ namespace Coffee.UIExtensions.Demo
 
         public void EnableAnimations(bool flag)
         {
-            foreach (var animator in FindObjectsOfType<Animator>())
+            foreach (var animator in Misc.FindObjectsOfType<Animator>())
             {
                 animator.enabled = flag;
             }
@@ -79,7 +80,7 @@ namespace Coffee.UIExtensions.Demo
 
         public void UIParticle_Scale(float scale)
         {
-            foreach (var uip in FindObjectsOfType<UIParticle>())
+            foreach (var uip in Misc.FindObjectsOfType<UIParticle>())
             {
                 uip.scale = scale;
             }
@@ -87,7 +88,7 @@ namespace Coffee.UIExtensions.Demo
 
         public void ParticleSystem_WorldSpaseSimulation(bool flag)
         {
-            foreach (var p in FindObjectsOfType<ParticleSystem>())
+            foreach (var p in Misc.FindObjectsOfType<ParticleSystem>())
             {
                 var main = p.main;
                 main.simulationSpace = flag
@@ -123,7 +124,7 @@ namespace Coffee.UIExtensions.Demo
 
         public void ParticleSystem_SetScale(float scale)
         {
-            foreach (var ps in FindObjectsOfType<ParticleSystem>())
+            foreach (var ps in Misc.FindObjectsOfType<ParticleSystem>())
             {
                 ps.transform.localScale = new Vector3(scale, scale, scale);
             }

Samples~/Demo/Sprites/UIParticle_Demo_Light_Frame.png.meta

@@ -42,12 +42,12 @@ TextureImporter:
   compressionQuality: 50
   spriteMode: 1
   spriteExtrude: 1
-  spriteMeshType: 1
+  spriteMeshType: 0
   alignment: 0
   spritePivot: {x: 0.5, y: 0.5}
   spritePixelsToUnits: 100
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 1
+  spriteGenerateFallbackPhysicsShape: 0
   alphaUsage: 1
   alphaIsTransparency: 1
   spriteTessellationDetail: -1

Samples~/Demo/Sprites/UIParticle_Demo_Move.png.meta

@@ -27,7 +27,7 @@ TextureImporter:
   generateCubemap: 6
   cubemapConvolution: 0
   seamlessCubemap: 0
-  textureFormat: 1
+  textureFormat: 4
   maxTextureSize: 2048
   textureSettings:
     serializedVersion: 2
@@ -42,12 +42,12 @@ TextureImporter:
   compressionQuality: 50
   spriteMode: 1
   spriteExtrude: 1
-  spriteMeshType: 1
+  spriteMeshType: 0
   alignment: 0
   spritePivot: {x: 0.5, y: 0.5}
   spritePixelsToUnits: 100
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 1
+  spriteGenerateFallbackPhysicsShape: 0
   alphaUsage: 1
   alphaIsTransparency: 1
   spriteTessellationDetail: -1

Samples~/Demo/Sprites/UIParticle_Demo_Star.png.meta

@@ -42,12 +42,12 @@ TextureImporter:
   compressionQuality: 50
   spriteMode: 1
   spriteExtrude: 1
-  spriteMeshType: 1
+  spriteMeshType: 0
   alignment: 0
   spritePivot: {x: 0.5, y: 0.5}
   spritePixelsToUnits: 100
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 1
+  spriteGenerateFallbackPhysicsShape: 0
   alphaUsage: 0
   alphaIsTransparency: 1
   spriteTessellationDetail: -1

Samples~/Demo/Sprites/UIParticle_Demo_Unity-chan.png.meta

@@ -27,7 +27,7 @@ TextureImporter:
   generateCubemap: 6
   cubemapConvolution: 0
   seamlessCubemap: 0
-  textureFormat: -1
+  textureFormat: 4
   maxTextureSize: 2048
   textureSettings:
     serializedVersion: 2
@@ -42,12 +42,12 @@ TextureImporter:
   compressionQuality: 50
   spriteMode: 1
   spriteExtrude: 1
-  spriteMeshType: 1
+  spriteMeshType: 0
   alignment: 0
   spritePivot: {x: 0.5, y: 0.5}
   spritePixelsToUnits: 100
   spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 1
+  spriteGenerateFallbackPhysicsShape: 0
   alphaUsage: 1
   alphaIsTransparency: 1
   spriteTessellationDetail: -1

Shaders/UIAdditive.shader

@@ -40,7 +40,10 @@
         Lighting Off
         ZWrite Off
         ZTest [unity_GUIZTestMode]
-        Fog { Mode Off }
+        Fog
+        {
+            Mode Off
+        }
         Blend One One
 
         ColorMask [_ColorMask]
@@ -61,21 +64,21 @@
 
             struct appdata_t
             {
-                float4 vertex   : POSITION;
+                float4 vertex : POSITION;
-                float4 color    : COLOR;
+                float4 color : COLOR;
                 float2 texcoord : TEXCOORD0;
                 UNITY_VERTEX_INPUT_INSTANCE_ID
             };
 
             struct v2f
             {
-                float4 vertex           : SV_POSITION;
+                float4 vertex : SV_POSITION;
-                fixed4 color            : COLOR;
+                fixed4 color : COLOR;
-                float2 texcoord         : TEXCOORD0;
+                float2 texcoord : TEXCOORD0;
-                float4 worldPosition    : TEXCOORD1;
+                float4 worldPosition : TEXCOORD1;
                 UNITY_VERTEX_OUTPUT_STEREO
             };
-            
+
             fixed4 _Color;
             sampler2D _MainTex;
             float4 _MainTex_ST;
@@ -114,4 +117,4 @@
             ENDCG
         }
     }
-}
+}

package.json

@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This package provides a component to render particle effects for uGUI.\nThe particle rendering is maskable and sortable, without the need for an extra Camera, RenderTexture, or Canvas.",
-  "version": "5.0.0-preview.3",
+  "version": "4.10.7",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {