chore(release): 5.0.0-preview.3 [skip ci]

# [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) ### Bug Fixes * generated baking-camera object remains in the prefab or scene ([fd66928](fd66928efe))
fix: generated baking-camera object remains in the prefab or scene
2026-05-15 12:40:08 +00:00 · 2024-06-21 05:23:11 +00:00 · 2024-06-21 14:22:34 +09:00 · 2024-06-20 15:27:14 +00:00 · 2024-06-20 12:52:21 +09:00 · 2024-06-20 12:52:21 +09:00
37 changed files with 644 additions and 1271 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,158 +1,42 @@
-## [4.11.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.11.0...v4.11.1) (2025-02-21)
+# [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)


 ### Bug Fixes

-* component icons will no longer be displayed in the scene view ([6dfbdae](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/6dfbdae38d3822ab9c2c6f0e4ca1ca32ee98a239))
+* generated baking-camera object remains in the prefab or scene ([fd66928](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/fd66928efe584aeb4f6347b9a9dca97d9512eb88))

-# [4.11.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.7...v4.11.0) (2025-02-21)
+# [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)
+
+
+### 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)
+* `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)
+* 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)
+* 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)


 ### Features

-* add 'TimeScaleMultiplier' option ([925af0b](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/925af0b6046f65f23a778f67cefa8ff9cbedb513))
+* remove overlay window (editor) ([fc3fbdd](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/fc3fbdd230595ad3471875ec6fec384a3dad0d17))
+* 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))

-## [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](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/47ee45cbbe651a8f87ca2b8a3948f8b88db8211e)), closes [#351](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/351)
-
-## [4.10.6](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.5...v4.10.6) (2025-01-03)
-
-
-### Bug Fixes
-
-* 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)
-* 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)
-
-## [4.10.5](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.4...v4.10.5) (2024-12-23)
-
-
-### 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))
+# [5.0.0-preview.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.6...v5.0.0-preview.1) (2024-05-23)


 ### Features

-* add project settings ([1ce4e31](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/1ce4e31a9681bf1a201d2723c8d97e07ecc16592))
-
-## [4.9.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.9.0...v4.9.1) (2024-08-07)
+* add project settings for UIParticle ([b6e6185](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/b6e6185c521fef0f118f61cfdfdac07b87555c01))
+* 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))


-### Bug Fixes
+### BREAKING CHANGES

-* 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
-
-* ParticleAttractor supports multiple ParticleSystems ([3834780](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/3834780fdb43443fe6e1ef89df54d26a24d62a91))
-
-## [4.8.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.8.0...v4.8.1) (2024-06-27)
-
-
-### Bug Fixes
-
-* 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)
+* Some members inherited from MaskableGraphic will no longer be available.

 ## [4.6.6](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.5...v4.6.6) (2024-05-23)

--- a/Editor/AnimatablePropertyEditor.cs
+++ b/Editor/AnimatablePropertyEditor.cs
@@ -31,35 +31,35 @@ namespace Coffee.UIExtensions
            }
            else
            {
-                result.Aggregate(s_Sb, (a, b) =>
-                {
-                    s_Sb.Append(b);
-                    return s_Sb.Append(", ");
-                });
+                result.Aggregate(s_Sb, (a, b) => s_Sb.AppendFormat("{0}, ", b));
                s_Sb.Length -= 2;
            }

            return s_Sb.ToString();
        }

-        public static void Draw(SerializedProperty sp, List<Material> mats)
+        public static void Draw(SerializedProperty sp, Material[] mats)
        {
-            var pos = EditorGUILayout.GetControlRect(true);
-            var label = new GUIContent(sp.displayName, sp.tooltip);
-            var rect = EditorGUI.PrefixLabel(pos, label);
-            var text = sp.hasMultipleDifferentValues
-                ? "-"
-                : CollectActiveNames(sp, s_ActiveNames);
+            bool isClicked;
+            using (new EditorGUILayout.HorizontalScope(GUILayout.ExpandWidth(false)))
+            {
+                var pos = EditorGUILayout.GetControlRect(true);
+                var label = new GUIContent(sp.displayName, sp.tooltip);
+                var rect = EditorGUI.PrefixLabel(pos, label);
+                var text = sp.hasMultipleDifferentValues
+                    ? "-"
+                    : CollectActiveNames(sp, s_ActiveNames);
+                isClicked = GUI.Button(rect, text, EditorStyles.popup);
+            }

-            if (!GUI.Button(rect, text, EditorStyles.popup)) return;
+            if (!isClicked) return;

            var gm = new GenericMenu();
-            gm.AddItem(s_ContentNothing, s_ActiveNames.Count == 0, x =>
+            gm.AddItem(s_ContentNothing, s_ActiveNames.Count == 0, () =>
            {
-                var current = (SerializedProperty)x;
-                current.ClearArray();
-                current.serializedObject.ApplyModifiedProperties();
-            }, sp);
+                sp.ClearArray();
+                sp.serializedObject.ApplyModifiedProperties();
+            });

            if (!sp.hasMultipleDifferentValues)
            {
@@ -73,7 +73,7 @@ namespace Coffee.UIExtensions
            }

            s_Names.Clear();
-            for (var j = 0; j < mats.Count; j++)
+            for (var j = 0; j < mats.Length; j++)
            {
                var mat = mats[j];
                if (!mat || !mat.shader) continue;
@@ -82,7 +82,8 @@ namespace Coffee.UIExtensions
                {
                    var name = ShaderUtil.GetPropertyName(mat.shader, i);
                    var type = (AnimatableProperty.ShaderPropertyType)ShaderUtil.GetPropertyType(mat.shader, i);
-                    if (!s_Names.Add(name)) continue;
+                    if (s_Names.Contains(name)) continue;
+                    s_Names.Add(name);

                    AddMenu(gm, sp, new ShaderProperty(name, type), true);

--- a/Editor/Internal.meta
+++ b/Editor/Internal.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 3e440931f761e4e888510a4e6045287a
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Editor/UIParticleEditor.cs
+++ b/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;

@@ -26,31 +26,20 @@ namespace Coffee.UIExtensions
 {
    [CustomEditor(typeof(UIParticle))]
    [CanEditMultipleObjects]
-    internal class UIParticleEditor : GraphicEditor
+    internal class UIParticleEditor : Editor
    {
-        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 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 static bool s_XYZMode;

        private SerializedProperty _maskable;
        private SerializedProperty _scale3D;
@@ -60,12 +49,8 @@ namespace Coffee.UIExtensions
        private SerializedProperty _groupMaxId;
        private SerializedProperty _positionMode;
        private SerializedProperty _autoScalingMode;
-        private SerializedProperty _useCustomView;
-        private SerializedProperty _customViewSize;
-        private SerializedProperty _timeScaleMultiplier;
        private ReorderableList _ro;
        private bool _showMax;
-        private bool _is3DScaleMode;

        private static readonly HashSet<Shader> s_Shaders = new HashSet<Shader>();
 #if UNITY_2018 || UNITY_2019
@@ -87,10 +72,8 @@ namespace Coffee.UIExtensions
        /// <summary>
        /// This function is called when the object becomes enabled and active.
        /// </summary>
-        protected override void OnEnable()
+        private void OnEnable()
        {
-            base.OnEnable();
-
            _maskable = serializedObject.FindProperty("m_Maskable");
            _scale3D = serializedObject.FindProperty("m_Scale3D");
            _animatableProperties = serializedObject.FindProperty("m_AnimatableProperties");
@@ -99,44 +82,31 @@ 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");
-            _timeScaleMultiplier = serializedObject.FindProperty("m_TimeScaleMultiplier");

            var sp = serializedObject.FindProperty("m_Particles");
            _ro = new ReorderableList(sp.serializedObject, sp, true, true, true, true)
            {
-                elementHeightCallback = index =>
-                {
-                    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);
-                },
+                elementHeight = EditorGUIUtility.singleLineHeight * 3 + 4,
+                elementHeightCallback = _ => 3 * (EditorGUIUtility.singleLineHeight + 2),
                drawElementCallback = (rect, index, _, __) =>
                {
-                    rect.y += 2;
+                    EditorGUI.BeginDisabledGroup(sp.hasMultipleDifferentValues);
+                    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 materials = new SerializedObject(psr).FindProperty("m_Materials");
-                    var count = Mathf.Min(materials.arraySize, 2);
-                    for (var i = 0; i < count; i++)
-                    {
-                        rect.y += rect.height + 2;
-                        EditorGUI.PropertyField(rect, materials.GetArrayElementAtIndex(i), s_ContentMaterials[i]);
-                    }
-
-                    if (materials.serializedObject.hasModifiedProperties)
+                    var ps = p.objectReferenceValue as ParticleSystem;
+                    var materials = ps
+                        ? new SerializedObject(ps.GetComponent<ParticleSystemRenderer>()).FindProperty("m_Materials")
+                        : null;
+                    rect.y += rect.height + 1;
+                    MaterialField(rect, s_ContentMaterial, materials, 0);
+                    rect.y += rect.height + 1;
+                    MaterialField(rect, s_ContentTrailMaterial, materials, 1);
+                    EditorGUI.EndDisabledGroup();
+                    if (materials != null && materials.serializedObject.hasModifiedProperties)
                    {
                        materials.serializedObject.ApplyModifiedProperties();
                    }
@@ -170,18 +140,19 @@ namespace Coffee.UIExtensions
                    uip.RefreshParticles(uip.particles);
                }
            }
+        }

-            // Initialize 3D scale mode.
-            _is3DScaleMode = State.instance.is3DScaleMode;
-            if (!_is3DScaleMode)
+        private static void MaterialField(Rect rect, GUIContent label, SerializedProperty sp, int index)
+        {
+            if (sp == null || sp.arraySize <= index)
            {
-                var x = _scale3D.FindPropertyRelative("x");
-                var y = _scale3D.FindPropertyRelative("y");
-                var z = _scale3D.FindPropertyRelative("z");
-                _is3DScaleMode = !Mathf.Approximately(x.floatValue, y.floatValue) ||
-                                 !Mathf.Approximately(y.floatValue, z.floatValue) ||
-                                 y.hasMultipleDifferentValues ||
-                                 z.hasMultipleDifferentValues;
+                EditorGUI.BeginDisabledGroup(true);
+                EditorGUI.ObjectField(rect, label, null, typeof(Material), true);
+                EditorGUI.EndDisabledGroup();
+            }
+            else
+            {
+                EditorGUI.PropertyField(rect, sp.GetArrayElementAtIndex(index), label);
            }
        }

@@ -193,7 +164,6 @@ namespace Coffee.UIExtensions
            var current = target as UIParticle;
            if (!current) return;

-            Profiler.BeginSample("(UIP:E) OnInspectorGUI");
            serializedObject.Update();

            // Maskable
@@ -201,16 +171,17 @@ namespace Coffee.UIExtensions

            // Scale
            EditorGUI.BeginDisabledGroup(!_meshSharing.hasMultipleDifferentValues && _meshSharing.intValue == 4);
-            if (DrawFloatOrVector3Field(_scale3D, _is3DScaleMode) != _is3DScaleMode)
-            {
-                State.instance.is3DScaleMode = _is3DScaleMode = !_is3DScaleMode;
-            }
-
+            s_XYZMode = DrawFloatOrVector3Field(_scale3D, s_XYZMode);
            EditorGUI.EndDisabledGroup();

            // AnimatableProperties
-            current.GetMaterials(s_TempMaterials);
-            AnimatablePropertyEditor.Draw(_animatableProperties, s_TempMaterials);
+            var mats = current.particles
+                .Where(x => x)
+                .Select(x => x.GetComponent<ParticleSystemRenderer>().sharedMaterial)
+                .Where(x => x)
+                .ToArray();
+
+            AnimatablePropertyEditor.Draw(_animatableProperties, mats);

            // Mesh sharing
            EditorGUI.BeginChangeCheck();
@@ -218,12 +189,9 @@ namespace Coffee.UIExtensions
            if (EditorGUI.EndChangeCheck())
            {
                serializedObject.ApplyModifiedProperties();
-                foreach (var t in targets)
+                foreach (var uip in targets.OfType<UIParticle>())
                {
-                    if (t is UIParticle uip)
-                    {
-                        uip.ResetGroupId();
-                    }
+                    uip.ResetGroupId();
                }
            }

@@ -231,32 +199,16 @@ namespace Coffee.UIExtensions
            EditorGUILayout.PropertyField(_positionMode);

            // Auto Scaling
-            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);
-            }
-
-            // Time Scale Multiplier
-            EditorGUILayout.PropertyField(_timeScaleMultiplier);
+            DrawAutoScaling(_autoScalingMode, targets.OfType<UIParticle>());

            // 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);
@@ -264,8 +216,7 @@ namespace Coffee.UIExtensions
            }

            // Non-UI built-in shader is not supported.
-            Profiler.BeginSample("(UIP:E) Non-UI built-in shader is not supported.");
-            foreach (var mat in s_TempMaterials)
+            foreach (var mat in current.materials)
            {
                if (!mat || !mat.shader) continue;
                var shader = mat.shader;
@@ -278,18 +229,15 @@ 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 s_TempMaterials)
+                foreach (var mat in current.materials)
                {
                    if (!mat || !mat.shader) continue;
                    var shader = mat.shader;
-                    if (!s_Shaders.Add(shader)) continue;
-
+                    if (s_Shaders.Contains(shader)) continue;
+                    s_Shaders.Add(shader);
                    foreach (var propName in s_MaskablePropertyNames)
                    {
                        if (mat.HasProperty(propName)) continue;
@@ -303,9 +251,7 @@ 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.";
@@ -344,14 +290,12 @@ namespace Coffee.UIExtensions
                }
            }
 #endif
-            Profiler.EndSample();
        }

-        private static bool IsBuiltInObject(Object obj)
+        private bool IsBuiltInObject(Object obj)
        {
-            return AssetDatabase.IsMainAsset(obj)
-                   && AssetDatabase.TryGetGUIDAndLocalFileIdentifier(obj, out var guid, out long _)
-                   && s_RegexBuiltInGuid.IsMatch(guid);
+            return AssetDatabase.TryGetGUIDAndLocalFileIdentifier(obj, out var guid, out long _)
+                   && Regex.IsMatch(guid, "^0{16}.0{15}$", RegexOptions.Compiled);
        }

 #if UNITY_2018 || UNITY_2019
@@ -445,7 +389,7 @@ namespace Coffee.UIExtensions
            {
                EditorGUI.BeginDisabledGroup(true);
                var obj = UIParticleUpdater.GetPrimary(spGroupId.intValue);
-                EditorGUILayout.ObjectField(s_ContentPrimary, obj, typeof(UIParticle), false);
+                EditorGUILayout.ObjectField("Primary", obj, typeof(UIParticle), false);
                EditorGUI.EndDisabledGroup();
            }

@@ -455,7 +399,7 @@ namespace Coffee.UIExtensions
            return showMax;
        }

-        private static void DrawAutoScaling(SerializedProperty prop)
+        private static void DrawAutoScaling(SerializedProperty prop, IEnumerable<UIParticle> uiParticles)
        {
            EditorGUILayout.PropertyField(prop);
        }
@@ -464,9 +408,7 @@ 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();
--- a/README.md
+++ b/README.md
@@ -1,85 +1,61 @@
-# <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 -->
+# <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)
+
+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)](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.md)  
+[![](https://img.shields.io/github/v/release/mob-sakai/ParticleEffectForUGUI?include_prereleases)](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/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-) | [📌 Key Features](#-key-features) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>
-
-## 📝 Description <!-- omit in toc -->
-
-![](https://user-images.githubusercontent.com/12690315/41771577-8da4b968-7650-11e8-9524-cd162c422d9d.gif)
-
-This package uses the new APIs `MeshBake/MeshTrailBake` (introduced in Unity 2018.2) to render particles through `CanvasRenderer`.  
-You can render, mask, and sort your `ParticleSystems` for UI without the need for an additional `Camera`, `RenderTexture`, or `Canvas`.
-
- [📌 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)
+<< [📝 Description](#-description) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>

 <br><br>

-## 📌 Key Features
+## 📝 Description

-* **Easy to use:** The package is ready to use out of the box.
-* **Sortable:** Sort particle effects and other UI elements by sibling index.
-* **Maskable:** Supports `Mask` or `RectMask2D`.
-* **No extra components required:** No need for an additional `Camera`, `RenderTexture`, or `Canvas`.
-* **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)
+![](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
+CanvasRenderer.  
+You can render, mask, and sort your ParticleSystems for UI without the necessity of an additional Camera, RenderTexture,
+or Canvas.
+
+### Features
+
+* Easy to use: The package is ready to use out of the box.
+* 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
+
+[MeshSharing.gif]: https://user-images.githubusercontent.com/12690315/174311048-c882df81-6c34-4eba-b0aa-5645457692f1.gif
+
+[ParticleAttractor.gif]: https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif
+
+[AbsolutePosition.gif]: https://user-images.githubusercontent.com/12690315/175751579-5a2357e8-2ecf-4afd-83c8-66e9771bde39.gif

 <br><br>

@@ -100,87 +76,76 @@ You can render, mask, and sort your `ParticleSystems` for UI without the need fo

 [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 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
-  ```
+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.

-#### Install via UPM (with Package Manager UI)
+If you have [openupm-cli](https://github.com/openupm/openupm-cli) installed, then run the following command in your
+project's directory:

- Click `Window > Package Manager` to open Package Manager UI.
- 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`
+```sh
+openupm add com.coffee.ui-particle
+```

-#### Install via UPM (Manually)
+#### Install via UPM (using Git URL)

- Open the `Packages/manifest.json` file in your project. Then add this package somewhere in the `dependencies` block:
-  ```json
-  {
-    "dependencies": {
-      "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git",
-      ...
-    }
+Navigate to your project's Packages folder and open the `manifest.json` file. Then add this package somewhere in
+the `dependencies` block:
+
+```json
+{
+  "dependencies": {
+    "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git",
+    ...
  }
-  ```
+}
+```

- 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",`
+To update the package, change suffix `#{version}` to the target version.

-#### Install as Embedded Package
+* e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.6.0",`

-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.  
-   ![](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.
- To update the package, you need to re-download it and replace the contents.
+Or, use [UpmGitExtension](https://github.com/mob-sakai/UpmGitExtension) to install and update the package.
+
+<br><br>
+
+## ⚙ Upgrading from 3.x/4.x to 5.x
+
+### Breaking Changes
+
+- The default value of `UIParticle.scale` has been changed from `10` to `1`.
+- `UIParticle` no longer inherits from `MaskableGraphic`.
+- 

 <br><br>

 ## 🚀 Usage

-### Component: UIParticle
+### UIParticle Component

 `UIParticle` controls the ParticleSystems that are attached to its own game objects and child game objects.

-![](https://github.com/user-attachments/assets/bc9eb783-afce-4102-ac61-aee9ea8d6f2f)
+![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/3559df45-63e7-4c4c-9233-f455779efa29)

- **Maskable**: Does this graphic allow maskable.
- **Scale**: Scale the rendering particles. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.
+- **Maskable**: Does this graphic allow masking.
+- **Scale**: Scale the rendering. 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 as animatable.
+  use this to mark the changes.
 - **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:** The particles will be emitted from the world position.
-  - **Relative:** The particles will be emitted from the scaled position.
- **Auto Scaling Mode**: How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.
-  - **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.
- **Time Scale Multiplier:** Time scale multiplier.
+    - **Absolute:** Emit from the world position of the `ParticleSystem`.
+    - **Relative:** Emit from the scaled position of the `ParticleSystem`.
+- **Auto Scaling**: `Transform.lossyScale` (=world scale) will be set to `(1, 1, 1)` on update. It prevents the
+  root-Canvas scale from affecting the hierarchy-scaled `ParticleSystem`.
 - **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
@@ -188,7 +153,7 @@ 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)
@@ -197,7 +162,7 @@ and z-position.

 <br>

-### Usage with Your Existing ParticleSystem Prefab
+#### 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)
@@ -206,19 +171,19 @@ and z-position.

 <br>

-### Usage with `Mask` or `RectMask2D` Component
+#### 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.
 If you use some custom shaders, see
-the [How to Make a Custom Shader to Support Mask/RectMask2D Component](#how-to-make-a-custom-shader-to-support-mask-and-rectmask2d-component)
+the [How to Make a Custom Shader to Support Mask/RectMask2D Component](#how-to-make-a-custom-shader-to-support-maskrectmask2d-component)
 section.

 ![](https://user-images.githubusercontent.com/12690315/95017591-3b512700-0695-11eb-864e-04166ea1809a.png)

 <br><br>

-### Usage with Script
+### Script usage

 ```cs
 // Instantiate ParticleSystem prefab with UIParticle on runtime.
@@ -237,14 +202,14 @@ uiParticle.Stop();

 <br><br>

-### Component: UIParticleAttractor
+### UIParticleAttractor component

 `UIParticleAttractor` attracts particles generated by the specified ParticleSystem.

-![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/5c20ad73-4b9a-4f38-9cdc-119df5cce077)
+![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/ea6ae0ed-f9a8-437c-8baa-47526303391e)  
 ![](https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif)

- **Particle Systems**: Attracts particles generated by the specified ParticleSystems.
+- **Particle System**: Attracts particles generated by the specified particle system.
 - **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.
@@ -258,14 +223,6 @@ 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
@@ -397,7 +354,7 @@ 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` and `RectMask2D` Component
+### How to Make a Custom Shader to Support Mask/RectMask2D Component

 <details>
 <summary>Shader tips</summary>
--- a/Runtime/Coffee.UIParticle.R.dll
+++ b/Runtime/Coffee.UIParticle.R.dll
--- a/Runtime/Coffee.UIParticle.R.dll.meta
+++ b/Runtime/Coffee.UIParticle.R.dll.meta
@@ -1,33 +0,0 @@
-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: 
--- a/Runtime/Internal/Extensions/ComponentExtensions.cs
+++ b/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 = InternalListPool<T>.Rent();
+            var results = ListPool<T>.Rent();
            self.GetComponentsInChildren_Internal(results, depth);
            var array = results.ToArray();
-            InternalListPool<T>.Return(ref results);
+            ListPool<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_Internal(results, depth - 1);
+                tr.GetChild(i).GetComponentsInChildren(results, depth - 1);
            }
        }

@@ -134,35 +134,6 @@ 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
        {
@@ -204,7 +175,7 @@ namespace Coffee.UIParticleInternal
            target.enabled = false;

            // Find MonoScript of the specified component.
-            foreach (var script in MonoImporter.GetAllRuntimeMonoScripts())
+            foreach (var script in Resources.FindObjectsOfTypeAll<MonoScript>())
            {
                if (script.GetClass() != typeof(T))
                {
--- a/Runtime/Internal/Extensions/ListExtensions.cs
+++ b/Runtime/Internal/Extensions/ListExtensions.cs
@@ -0,0 +1,19 @@
+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);
+        }
+    }
+}
--- a/Runtime/Internal/Extensions/ListExtensions.cs.meta
+++ b/Runtime/Internal/Extensions/ListExtensions.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 833553390099d40c9b212823f0852c46
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
--- a/Runtime/Internal/Extensions/Misc.cs
+++ b/Runtime/Internal/Extensions/Misc.cs
@@ -0,0 +1,48 @@
+using System.Diagnostics;
+using UnityEditor;
+using UnityEngine;
+
+namespace Coffee.UIParticleInternal
+{
+    internal static class Misc
+    {
+        public static void Destroy(Object obj)
+        {
+            if (!obj) return;
+#if UNITY_EDITOR
+            if (!Application.isPlaying)
+            {
+                Object.DestroyImmediate(obj);
+            }
+            else
+#endif
+            {
+                Object.Destroy(obj);
+            }
+        }
+
+        public static void DestroyImmediate(Object obj)
+        {
+            if (!obj) return;
+#if UNITY_EDITOR
+            if (Application.isEditor)
+            {
+                Object.DestroyImmediate(obj);
+            }
+            else
+#endif
+            {
+                Object.Destroy(obj);
+            }
+        }
+
+        [Conditional("UNITY_EDITOR")]
+        public static void SetDirty(Object obj)
+        {
+#if UNITY_EDITOR
+            if (!obj) return;
+            EditorUtility.SetDirty(obj);
+#endif
+        }
+    }
+}
--- a/Runtime/Internal/Extensions/Misc.cs.meta
+++ b/Runtime/Internal/Extensions/Misc.cs.meta
@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 182319ecc315e4858b119764af0fbcb0
+guid: 39ed6a6b0a72e482488bd298b2ae762e
 MonoImporter:
  externalObjects: {}
  serializedVersion: 2
--- a/Runtime/Internal/Extensions/SpriteExtensions.cs
+++ b/Runtime/Internal/Extensions/SpriteExtensions.cs
@@ -17,15 +17,11 @@ namespace Coffee.UIParticleInternal
            Type.GetType("UnityEditor.Experimental.U2D.SpriteEditorExtension, UnityEditor")
            ?? Type.GetType("UnityEditor.U2D.SpriteEditorExtension, UnityEditor");

-        private static readonly Func<Sprite, Texture2D> s_GetActiveAtlasTextureMethod =
-            (Func<Sprite, Texture2D>)Delegate.CreateDelegate(typeof(Func<Sprite, Texture2D>),
-                s_SpriteEditorExtensionType
-                    .GetMethod("GetActiveAtlasTexture", BindingFlags.Static | BindingFlags.NonPublic));
+        private static readonly MethodInfo s_GetActiveAtlasTextureMethod = s_SpriteEditorExtensionType
+            .GetMethod("GetActiveAtlasTexture", BindingFlags.Static | BindingFlags.NonPublic);

-        private static readonly Func<Sprite, SpriteAtlas> s_GetActiveAtlasMethod =
-            (Func<Sprite, SpriteAtlas>)Delegate.CreateDelegate(typeof(Func<Sprite, SpriteAtlas>),
-                s_SpriteEditorExtensionType
-                    .GetMethod("GetActiveAtlas", BindingFlags.Static | BindingFlags.NonPublic));
+        private static readonly MethodInfo s_GetActiveAtlasMethod = s_SpriteEditorExtensionType
+            .GetMethod("GetActiveAtlas", BindingFlags.Static | BindingFlags.NonPublic);

        /// <summary>
        /// Get the actual texture of a sprite in play mode or edit mode.
@@ -34,7 +30,9 @@ namespace Coffee.UIParticleInternal
        {
            if (!self) return null;

-            var ret = s_GetActiveAtlasTextureMethod(self);
+            if (Application.isPlaying) return self.texture;
+
+            var ret = s_GetActiveAtlasTextureMethod.Invoke(null, new object[] { self }) as Texture2D;
            return ret ? ret : self.texture;
        }

@@ -45,7 +43,7 @@ namespace Coffee.UIParticleInternal
        {
            if (!self) return null;

-            return s_GetActiveAtlasMethod(self);
+            return s_GetActiveAtlasMethod.Invoke(null, new object[] { self }) as SpriteAtlas;
        }
 #else
        /// <summary>
--- a/Runtime/Internal/ProjectSettings/PreloadedProjectSettings.cs
+++ b/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;
@@ -13,51 +13,41 @@ namespace Coffee.UIParticleInternal
 {
    public abstract class PreloadedProjectSettings : ScriptableObject
 #if UNITY_EDITOR
+        , IPreprocessBuildWithReport
    {
-        private class Postprocessor : AssetPostprocessor
+        int IOrderedCallback.callbackOrder => 0;
+
+        void IPreprocessBuildWithReport.OnPreprocessBuild(BuildReport report)
        {
-            private static void OnPostprocessAllAssets(string[] _, string[] __, string[] ___, string[] ____)
-            {
-                Initialize();
-            }
-        }
-
-        private class PreprocessBuildWithReport : IPreprocessBuildWithReport
-        {
-            int IOrderedCallback.callbackOrder => 0;
-
-            void IPreprocessBuildWithReport.OnPreprocessBuild(BuildReport report)
-            {
-                Initialize();
-            }
+            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)
                {
-                    // When create a new instance, automatically set it as default settings.
-                    defaultSettings = CreateInstance(t) as PreloadedProjectSettings;
+                    defaultSettings = t.GetProperty("instance", flags)
+                        ?.GetValue(null, null) as PreloadedProjectSettings;
                    SetDefaultSettings(defaultSettings);
                }
                else if (GetPreloadedSettings(t).Length != 1)
                {
                    SetDefaultSettings(defaultSettings);
                }
-
-                if (defaultSettings)
-                {
-                    defaultSettings.OnInitialize();
-                }
            }
+
+            EditorApplication.QueuePlayerLoopUpdate();
        }

        protected static string GetDefaultName(Type type, bool nicify)
        {
-            var typeName = type.Name;
+            var typeName = type.Name.Replace("ProjectSettings", "");
            return nicify
                ? ObjectNames.NicifyVariableName(typeName)
                : typeName;
@@ -81,8 +71,6 @@ namespace Coffee.UIParticleInternal

        protected static void SetDefaultSettings(PreloadedProjectSettings asset)
        {
-            if (!asset) return;
-
            var type = asset.GetType();
            if (string.IsNullOrEmpty(AssetDatabase.GetAssetPath(asset)))
            {
@@ -93,11 +81,7 @@ namespace Coffee.UIParticleInternal

                var assetPath = $"Assets/ProjectSettings/{GetDefaultName(type, false)}.asset";
                assetPath = AssetDatabase.GenerateUniqueAssetPath(assetPath);
-                if (!File.Exists(assetPath))
-                {
-                    AssetDatabase.CreateAsset(asset, assetPath);
-                    asset.OnCreateAsset();
-                }
+                AssetDatabase.CreateAsset(asset, assetPath);
            }

            var preloadedAssets = PlayerSettings.GetPreloadedAssets();
@@ -111,20 +95,13 @@ 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>
    {
@@ -133,8 +110,6 @@ namespace Coffee.UIParticleInternal
 #if UNITY_EDITOR
        private string _jsonText;

-        public static bool hasInstance => s_Instance;
-
        public static T instance
        {
            get
--- a/Runtime/Internal/Utilities/FastAction.cs
+++ b/Runtime/Internal/Utilities/FastAction.cs
@@ -10,9 +10,8 @@ namespace Coffee.UIParticleInternal
    /// </summary>
    internal class FastActionBase<T>
    {
-        private static readonly InternalObjectPool<LinkedListNode<T>> s_NodePool =
-            new InternalObjectPool<LinkedListNode<T>>(() => new LinkedListNode<T>(default), _ => true,
-                x => x.Value = default);
+        private static readonly ObjectPool<LinkedListNode<T>> s_NodePool =
+            new ObjectPool<LinkedListNode<T>>(() => new LinkedListNode<T>(default), _ => true, x => x.Value = default);

        private readonly LinkedList<T> _delegates = new LinkedList<T>();

@@ -21,7 +20,6 @@ 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;
@@ -34,7 +32,6 @@ 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)
@@ -66,11 +63,6 @@ namespace Coffee.UIParticleInternal
                node = node.Next;
            }
        }
-
-        public void Clear()
-        {
-            _delegates.Clear();
-        }
    }

    /// <summary>
--- a/Runtime/Internal/Utilities/FrameCache.cs
+++ b/Runtime/Internal/Utilities/FrameCache.cs
@@ -46,6 +46,7 @@ namespace Coffee.UIParticleInternal
            GetFrameCache<T>().Set((key1.GetHashCode(), key2.GetHashCode()), result);
        }

+
        /// <summary>
        /// Sets a value in the frame cache with a specified key.
        /// </summary>
--- a/Runtime/Internal/Utilities/Logging.cs
+++ b/Runtime/Internal/Utilities/Logging.cs
@@ -5,6 +5,7 @@ using Object = UnityEngine.Object;
 #if ENABLE_COFFEE_LOGGER
 using System.Reflection;
 using System.Collections.Generic;
+
 #else
 using Conditional = System.Diagnostics.ConditionalAttribute;
 #endif
@@ -42,6 +43,7 @@ namespace Coffee.UIParticleInternal
 #endif
        }

+
 #if !ENABLE_COFFEE_LOGGER
        [Conditional(k_DisableSymbol)]
 #endif
@@ -51,6 +53,7 @@ namespace Coffee.UIParticleInternal
            Log_Internal(LogType.Log, tag, message, context ? context : tag as Object);
        }

+
 #if !ENABLE_COFFEE_LOGGER
        [Conditional(k_DisableSymbol)]
 #endif
@@ -59,6 +62,7 @@ namespace Coffee.UIParticleInternal
            Log_Internal(LogType.Log, tag, message, context ? context : tag as Object);
        }

+
 #if !ENABLE_COFFEE_LOGGER
        [Conditional(k_DisableSymbol)]
 #endif
@@ -76,6 +80,7 @@ namespace Coffee.UIParticleInternal
 #endif
        }

+
 #if !ENABLE_COFFEE_LOGGER
        [Conditional(k_DisableSymbol)]
 #endif
@@ -119,6 +124,7 @@ namespace Coffee.UIParticleInternal
 #endif
        }

+
 #if !ENABLE_COFFEE_LOGGER
        [Conditional(k_DisableSymbol)]
 #endif
@@ -135,9 +141,6 @@ namespace Coffee.UIParticleInternal

                switch (tag)
                {
-                    case string name:
-                        sb.Append(name);
-                        break;
                    case Type type:
                        AppendType(sb, type);
                        break;
@@ -164,6 +167,7 @@ namespace Coffee.UIParticleInternal
 #endif
        }

+
 #if !ENABLE_COFFEE_LOGGER
        [Conditional(k_DisableSymbol)]
 #endif
@@ -202,6 +206,7 @@ namespace Coffee.UIParticleInternal
 #endif
        }

+
 #if !ENABLE_COFFEE_LOGGER
        [Conditional(k_DisableSymbol)]
 #endif
--- a/Runtime/Internal/Utilities/MaterialRepository.cs
+++ b/Runtime/Internal/Utilities/MaterialRepository.cs
@@ -15,7 +15,7 @@ namespace Coffee.UIParticleInternal

 #if UNITY_EDITOR
        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
-        public static void Clear()
+        private static void Clear()
        {
            s_Repository.Clear();
        }
@@ -55,6 +55,7 @@ namespace Coffee.UIParticleInternal
            Profiler.EndSample();
        }

+
        /// <summary>
        /// Adds or retrieves a cached material based on the hash.
        /// </summary>
--- a/Runtime/Internal/Utilities/Misc.cs
+++ b/Runtime/Internal/Utilities/Misc.cs
@@ -1,132 +0,0 @@
-using System;
-using System.Diagnostics;
-using UnityEditor;
-using UnityEngine;
-using Object = UnityEngine.Object;
-#if UNITY_EDITOR
-using System.IO;
-using System.Linq;
-using System.Reflection;
-#if UNITY_2021_2_OR_NEWER
-using UnityEditor.SceneManagement;
-#else
-using UnityEditor.Experimental.SceneManagement;
-#endif
-#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;
-#if UNITY_EDITOR
-            if (!Application.isPlaying)
-            {
-                Object.DestroyImmediate(obj);
-            }
-            else
-#endif
-            {
-                Object.Destroy(obj);
-            }
-        }
-
-        public static void DestroyImmediate(Object obj)
-        {
-            if (!obj) return;
-#if UNITY_EDITOR
-            if (Application.isEditor)
-            {
-                Object.DestroyImmediate(obj);
-            }
-            else
-#endif
-            {
-                Object.Destroy(obj);
-            }
-        }
-
-        [Conditional("UNITY_EDITOR")]
-        public static void SetDirty(Object obj)
-        {
-#if UNITY_EDITOR
-            if (!obj) return;
-            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
-
-        [Conditional("UNITY_EDITOR")]
-        public static void QueuePlayerLoopUpdate()
-        {
-#if UNITY_EDITOR
-            if (!EditorApplication.isPlaying)
-            {
-                EditorApplication.QueuePlayerLoopUpdate();
-            }
-#endif
-        }
-    }
-
-#if !UNITY_2021_2_OR_NEWER
-    [AttributeUsage(AttributeTargets.Class)]
-    [Conditional("UNITY_EDITOR")]
-    internal class IconAttribute : Attribute
-    {
-        private readonly string _path;
-
-        public IconAttribute(string path)
-        {
-            _path = path;
-        }
-
-#if UNITY_EDITOR
-        private static Action<Object, Texture2D> s_SetIconForObject = typeof(EditorGUIUtility)
-            .GetMethod("SetIconForObject", BindingFlags.Static | BindingFlags.NonPublic)
-            .CreateDelegate(typeof(Action<Object, Texture2D>), null) as Action<Object, Texture2D>;
-
-        [InitializeOnLoadMethod]
-        private static void InitializeOnLoadMethod()
-        {
-            if (Misc.isBatchOrBuilding) return;
-
-            var types = TypeCache.GetTypesWithAttribute<IconAttribute>();
-            var scripts = MonoImporter.GetAllRuntimeMonoScripts();
-            foreach (var type in types)
-            {
-                var script = scripts.FirstOrDefault(x => x.GetClass() == type);
-                if (!script) continue;
-
-                var path = type.GetCustomAttribute<IconAttribute>()?._path;
-                var icon = AssetDatabase.LoadAssetAtPath<Texture2D>(path);
-                if (!icon) continue;
-
-                s_SetIconForObject(script, icon);
-            }
-        }
-#endif
-    }
-#endif
-}
--- a/Runtime/Internal/Utilities/ObjectPool.cs
+++ b/Runtime/Internal/Utilities/ObjectPool.cs
@@ -6,58 +6,15 @@ namespace Coffee.UIParticleInternal
    /// <summary>
    /// Object pool.
    /// </summary>
-    internal class InternalObjectPool<T> where T : class
+    internal class ObjectPool<T>
    {
-#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 InternalObjectPool(Func<T> onCreate, Predicate<T> onValid, Action<T> onReturn)
+        public ObjectPool(Func<T> onCreate, Predicate<T> onValid, Action<T> onReturn)
        {
            _onCreate = onCreate;
            _onValid = onValid;
@@ -97,40 +54,15 @@ 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 InternalListPool<T>
+    internal static class ListPool<T>
    {
-#if UNITY_2021_1_OR_NEWER
-        /// <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());
+        private static readonly ObjectPool<List<T>> s_ListPool =
+            new ObjectPool<List<T>>(() => new List<T>(), _ => true, x => x.Clear());

        /// <summary>
        /// Rent an instance from the pool.
@@ -149,6 +81,5 @@ namespace Coffee.UIParticleInternal
        {
            s_ListPool.Return(ref toRelease);
        }
-#endif
    }
 }
--- a/Runtime/Internal/Utilities/ObjectRepository.cs
+++ b/Runtime/Internal/Utilities/ObjectRepository.cs
@@ -8,11 +8,10 @@ namespace Coffee.UIParticleInternal
 {
    internal class ObjectRepository<T> where T : Object
    {
-        private readonly Dictionary<Hash128, Entry> _cache = new Dictionary<Hash128, Entry>(8);
-        private readonly Dictionary<int, Hash128> _objectKey = new Dictionary<int, Hash128>(8);
+        private readonly List<Entry> _cache = new List<Entry>();
        private readonly string _name;
        private readonly Action<T> _onRelease;
-        private readonly Stack<Entry> _pool = new Stack<Entry>(8);
+        private readonly Stack<Entry> _pool = new Stack<Entry>();

        public ObjectRepository(Action<T> onRelease = null)
        {
@@ -37,33 +36,40 @@ namespace Coffee.UIParticleInternal
            {
                _onRelease = onRelease;
            }
-
-            for (var i = 0; i < 8; i++)
-            {
-                _pool.Push(new Entry());
-            }
        }

        public int count => _cache.Count;

        public void Clear()
        {
-            foreach (var kv in _cache)
+            for (var i = 0; i < _cache.Count; i++)
            {
-                var entry = kv.Value;
+                var entry = _cache[i];
                if (entry == null) continue;

                entry.Release(_onRelease);
-                _pool.Push(entry);
            }

            _cache.Clear();
-            _objectKey.Clear();
        }

        public bool Valid(Hash128 hash, T obj)
        {
-            return _cache.TryGetValue(hash, out var entry) && entry.storedObject == obj;
+            // Find existing entry.
+            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>
@@ -71,69 +77,82 @@ namespace Coffee.UIParticleInternal
        /// </summary>
        public void Get(Hash128 hash, ref T obj, Func<T> onCreate)
        {
-            if (GetFromCache(hash, ref obj)) return;
-            Add(hash, ref obj, onCreate());
+            // Find existing entry.
+            Profiler.BeginSample("(COF)[ObjectRepository] Get > Find existing entry");
+            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>
        /// Adds or retrieves a cached object based on the hash.
        /// </summary>
        public void Get<TS>(Hash128 hash, ref T obj, Func<TS, T> onCreate, TS source)
-        {
-            if (GetFromCache(hash, ref obj)) return;
-            Add(hash, ref obj, onCreate(source));
-        }
-
-        private bool GetFromCache(Hash128 hash, ref T obj)
        {
            // Find existing entry.
-            Profiler.BeginSample("(COF)[ObjectRepository] GetFromCache");
-            if (_cache.TryGetValue(hash, out var entry))
+            Profiler.BeginSample("(COF)[ObjectRepository] Get > Find existing entry");
+            for (var i = 0; i < _cache.Count; ++i)
            {
-                if (!entry.storedObject)
-                {
-                    Release(ref entry.storedObject);
-                    Profiler.EndSample();
-                    return false;
-                }
+                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(total#{count}): {entry}");
+                    Logging.Log(_name, $"Get(#{count}): {entry}");
                }

                Profiler.EndSample();
-                return true;
-            }
-
-            Profiler.EndSample();
-            return false;
-        }
-
-        private void Add(Hash128 hash, ref T obj, T newObject)
-        {
-            if (!newObject)
-            {
-                Release(ref obj);
-                obj = newObject;
                return;
            }

-            // Create and add a new entry.
-            Profiler.BeginSample("(COF)[ObjectRepository] Add");
+            Profiler.EndSample();
+
+            // Create new entry.
+            Profiler.BeginSample("(COF)[ObjectRepository] Get > Create new entry");
            var newEntry = 0 < _pool.Count ? _pool.Pop() : new Entry();
-            newEntry.storedObject = newObject;
+            newEntry.storedObject = onCreate(source);
            newEntry.hash = hash;
            newEntry.reference = 1;
-            _cache[hash] = newEntry;
-            _objectKey[newObject.GetInstanceID()] = hash;
-            Logging.Log(_name, $"<color=#03c700>Add</color>(total#{count}): {newEntry}");
+            _cache.Add(newEntry);
+            Logging.Log(_name, $"Get(#{count}): {newEntry}");
+
            Release(ref obj);
-            obj = newObject;
+            obj = newEntry.storedObject;
            Profiler.EndSample();
        }

@@ -144,45 +163,35 @@ namespace Coffee.UIParticleInternal
        {
            if (ReferenceEquals(obj, null)) return;

-            // Find and release the entry.
            Profiler.BeginSample("(COF)[ObjectRepository] Release");
-            var id = obj.GetInstanceID();
-            if (_objectKey.TryGetValue(id, out var hash)
-                && _cache.TryGetValue(hash, out var entry))
+            for (var i = 0; i < _cache.Count; i++)
            {
-                entry.reference--;
-                if (entry.reference <= 0 || !entry.storedObject)
+                var entry = _cache[i];
+
+                if (entry.storedObject != obj)
                {
-                    Remove(entry);
+                    continue;
                }
-                else
+
+                if (--entry.reference <= 0)
                {
-                    Logging.Log(_name, $"Release(total#{_cache.Count}): {entry}");
+                    Profiler.BeginSample("(COF)[ObjectRepository] Release > RemoveAt");
+                    _cache.RemoveAtFast(i);
+                    Logging.Log(_name, $"Release(#{_cache.Count}): {entry}");
+                    entry.Release(_onRelease);
+                    _pool.Push(entry);
+                    Profiler.EndSample();
+                    break;
                }
-            }
-            else
-            {
-                Logging.Log(_name, $"Release(total#{_cache.Count}): <color=red>Already released: {obj}</color>");
+
+                Logging.Log(_name, $"Release(#{count}): {entry}");
+                break;
            }

            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;
@@ -202,7 +211,7 @@ namespace Coffee.UIParticleInternal

            public override string ToString()
            {
-                return $"h{(uint)hash.GetHashCode()} (refs#{reference}), {storedObject}";
+                return $"h{(uint)hash.GetHashCode()} (#{reference}), {storedObject}";
            }
        }
    }
--- a/Runtime/Internal/Utilities/UIExtraCallbacks.cs
+++ b/Runtime/Internal/Utilities/UIExtraCallbacks.cs
@@ -14,8 +14,6 @@ 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()
        {
@@ -50,15 +48,6 @@ 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>
@@ -75,12 +64,11 @@ namespace Coffee.UIParticleInternal

 #if UNITY_EDITOR
        [InitializeOnLoadMethod]
-#endif
+#else
        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
+#endif
        private static void InitializeOnLoad()
        {
-            Canvas.willRenderCanvases -= OnAfterCanvasRebuild;
-            s_IsInitializedAfterCanvasRebuild = false;
        }

        /// <summary>
@@ -88,17 +76,6 @@ 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();
        }
--- a/Runtime/UIParticle.cs
+++ b/Runtime/UIParticle.cs
@@ -3,25 +3,22 @@ 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
 {
    /// <summary>
    /// Render maskable and sortable particle effect ,without Camera, RenderTexture or Canvas.
    /// </summary>
-    [Icon("Packages/com.coffee.ui-particle/Icons/UIParticleIcon.png")]
    [ExecuteAlways]
    [RequireComponent(typeof(RectTransform))]
    [RequireComponent(typeof(CanvasRenderer))]
-    public class UIParticle : MaskableGraphic, ISerializationCallbackReceiver
+    public class UIParticle : UIBehaviour, ISerializationCallbackReceiver
    {
        public enum AutoScalingMode
        {
@@ -61,12 +58,12 @@ namespace Coffee.UIExtensions
        [Obsolete]
        internal bool m_AbsoluteMode;

-        [Tooltip("Scale the rendering particles. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.")]
+        [Tooltip("Particle effect scale")]
        [SerializeField]
-        private Vector3 m_Scale3D = new Vector3(10, 10, 10);
+        private Vector3 m_Scale3D = new Vector3(1, 1, 1);

-        [Tooltip("If you want to update material properties (e.g. _MainTex_ST, _Color) in AnimationClip, " +
-                 "use this to mark as animatable.")]
+        [Tooltip("Animatable material properties.\n" +
+                 "If you want to change the material properties of the ParticleSystem in Animation, enable it.")]
        [SerializeField]
        internal AnimatableProperty[] m_AnimatableProperties = new AnimatableProperty[0];

@@ -74,13 +71,12 @@ namespace Coffee.UIExtensions
        [SerializeField]
        private List<ParticleSystem> m_Particles = new List<ParticleSystem>();

-        [Tooltip("Particle simulation results are shared within the same group. " +
-                 "A large number of the same effects can be displayed with a small load.\n" +
-                 "None: Disable mesh sharing.\n" +
-                 "Auto: Automatically select Primary/Replica.\n" +
-                 "Primary: Provides particle simulation results to the same group.\n" +
+        [Tooltip("Mesh sharing.\n" +
+                 "None: disable mesh sharing.\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;

@@ -92,57 +88,67 @@ namespace Coffee.UIExtensions
        [SerializeField]
        private int m_GroupMaxId;

-        [Tooltip("Emission position mode.\n" +
-                 "Relative: The particles will be emitted from the scaled position.\n" +
-                 "Absolute: The particles will be emitted from the world position.")]
+        [Tooltip("Relative: The particles will be emitted from the scaled position of ParticleSystem.\n" +
+                 "Absolute: The particles will be emitted from the world position of ParticleSystem.")]
        [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(
-            "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.")]
+        [Tooltip("Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1)." +
+                 "UIParticle: UIParticle.scale will be adjusted.")]
        private AutoScalingMode m_AutoScalingMode = AutoScalingMode.Transform;

        [SerializeField]
-        [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;
-
-        [SerializeField]
-        [Tooltip("Time scale multiplier.")]
-        private float m_TimeScaleMultiplier = 1;
+        private bool m_Maskable = true;

        private readonly List<UIParticleRenderer> _renderers = new List<UIParticleRenderer>();
-        private Camera _bakeCamera;
+        private Canvas _canvas;
        private int _groupId;
-        private bool _isScaleStored;
-        private Vector3 _storedScale;
+        private Camera _bakeCamera;
        private DrivenRectTransformTracker _tracker;
+        private Vector3 _storedScale;
+        private bool _isScaleStored;

-        /// <summary>
-        /// Should this graphic be considered a target for ray-casting?
-        /// </summary>
-        public override bool raycastTarget
+        public RectTransform rectTransform => transform as RectTransform;
+
+        public Canvas canvas
        {
-            get => false;
-            set { }
+            get
+            {
+                if (_canvas) return _canvas;
+
+                var tr = transform;
+                while (tr && !_canvas)
+                {
+                    if (tr.TryGetComponent(out _canvas)) return _canvas;
+                    tr = tr.parent;
+                }
+
+                return null;
+            }
        }

        /// <summary>
-        /// Particle simulation results are shared within the same group.
-        /// A large number of the same effects can be displayed with a small load.
+        /// Does this graphic allow masking.
+        /// </summary>
+        public bool maskable
+        {
+            get => m_Maskable;
+            set
+            {
+                if (value == m_Maskable) return;
+                m_Maskable = value;
+                UpdateRendererMaterial();
+            }
+        }
+
+        /// <summary>
+        /// Mesh sharing.
        /// None: disable mesh sharing.
        /// Auto: automatically select Primary/Replica.
        /// Primary: provides particle simulation results to the same group.
@@ -185,9 +191,9 @@ namespace Coffee.UIExtensions
        }

        /// <summary>
-        /// Emission position mode.
-        /// Relative: The particles will be emitted from the scaled position.
-        /// Absolute: The particles will be emitted from the world position.
+        /// Particle position mode.
+        /// 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>
        public PositionMode positionMode
        {
@@ -200,7 +206,6 @@ 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;
@@ -218,12 +223,8 @@ namespace Coffee.UIExtensions
        }

        /// <summary>
-        /// How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.
-        /// <para/>
-        /// None: Do nothing.
-        /// <para/>
+        /// Auto scaling mode.
        /// Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1).
-        /// <para/>
        /// UIParticle: UIParticle.scale will be adjusted.
        /// </summary>
        public AutoScalingMode autoScalingMode
@@ -242,35 +243,6 @@ 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);
-        }
-
-        /// <summary>
-        /// Time scale multiplier.
-        /// </summary>
-        public float timeScaleMultiplier
-        {
-            get => m_TimeScaleMultiplier;
-            set => m_TimeScaleMultiplier = value;
-        }
-
        internal bool useMeshSharing => m_MeshSharing != MeshSharing.None;

        internal bool isPrimary =>
@@ -316,6 +288,22 @@ 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>
@@ -323,15 +311,15 @@ namespace Coffee.UIExtensions

        public Vector3 parentScale { get; private set; }

-        public Vector3 canvasScale { get; private set; }
+        private Vector3 canvasScale { get; set; }

        protected override void OnEnable()
        {
            _isScaleStored = false;
            ResetGroupId();
            UIParticleUpdater.Register(this);
-            RegisterDirtyMaterialCallback(UpdateRendererMaterial);

+            //
            if (0 < particles.Count)
            {
                RefreshParticles(particles);
@@ -341,7 +329,7 @@ namespace Coffee.UIExtensions
                RefreshParticles();
            }

-            base.OnEnable();
+            UpdateRendererMaterial();
        }

        /// <summary>
@@ -358,9 +346,15 @@ namespace Coffee.UIExtensions
            _isScaleStored = false;
            UIParticleUpdater.Unregister(this);
            _renderers.ForEach(r => r.Reset());
-            UnregisterDirtyMaterialCallback(UpdateRendererMaterial);
+            _canvas = null;
+        }

-            base.OnDisable();
+        /// <summary>
+        /// Called when the state of the parent Canvas is changed.
+        /// </summary>
+        protected override void OnCanvasHierarchyChanged()
+        {
+            _canvas = null;
        }

        /// <summary>
@@ -370,6 +364,14 @@ 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()
        {
        }
@@ -460,21 +462,6 @@ 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>
@@ -494,9 +481,6 @@ 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)
                {
@@ -591,14 +575,12 @@ namespace Coffee.UIExtensions
            {
                var ps = particleSystems[i];
                if (!ps) continue;
-
-                var mainEmitter = ps.GetMainEmitter(particleSystems);
-                GetRenderer(j++).Set(this, ps, false, mainEmitter);
+                GetRenderer(j++).Set(this, ps, false);

                // If the trail is enabled, set it additionally.
                if (ps.trails.enabled)
                {
-                    GetRenderer(j++).Set(this, ps, true, mainEmitter);
+                    GetRenderer(j++).Set(this, ps, true);
                }
            }
        }
@@ -620,12 +602,8 @@ namespace Coffee.UIExtensions
            }

            var currentScale = transform.localScale;
-            if (!_isScaleStored)
-            {
-                _storedScale = currentScale.IsVisible() ? currentScale : Vector3.one;
-                _isScaleStored = true;
-            }
-
+            _storedScale = currentScale;
+            _isScaleStored = true;
            _tracker.Add(this, rectTransform, DrivenTransformProperties.Scale);
            var newScale = parentScale.Inverse();
            if (currentScale != newScale)
@@ -664,17 +642,6 @@ 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++)
@@ -704,16 +671,7 @@ namespace Coffee.UIExtensions
        private Camera GetBakeCamera()
        {
            if (!canvas) return Camera.main;
-            if (!useCustomView && canvas.renderMode != RenderMode.ScreenSpaceOverlay && canvas.rootCanvas.worldCamera)
-            {
-                return canvas.rootCanvas.worldCamera;
-            }
-
-            if (_bakeCamera)
-            {
-                _bakeCamera.orthographicSize = useCustomView ? customViewSize : 10;
-                return _bakeCamera;
-            }
+            if (_bakeCamera) return _bakeCamera;

            // Find existing baking camera.
            var childCount = transform.childCount;
@@ -730,7 +688,10 @@ 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>();
@@ -738,7 +699,7 @@ namespace Coffee.UIExtensions

            // Setup baking camera.
            _bakeCamera.enabled = false;
-            _bakeCamera.orthographicSize = useCustomView ? customViewSize : 10;
+            _bakeCamera.orthographicSize = 1000;
            _bakeCamera.transform.SetPositionAndRotation(new Vector3(0, 0, -1000), Quaternion.identity);
            _bakeCamera.orthographic = true;
            _bakeCamera.farClipPlane = 2000f;
@@ -749,9 +710,6 @@ namespace Coffee.UIExtensions
            _bakeCamera.renderingPath = RenderingPath.Forward;
            _bakeCamera.useOcclusionCulling = false;

-            _bakeCamera.gameObject.SetActive(false);
-            _bakeCamera.gameObject.hideFlags = UIParticleProjectSettings.globalHideFlags;
-
            return _bakeCamera;
        }
    }
--- a/Runtime/UIParticle.cs.meta
+++ b/Runtime/UIParticle.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: 
--- a/Runtime/UIParticleAttractor.cs
+++ b/Runtime/UIParticleAttractor.cs
@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using Coffee.UIParticleInternal;
 using UnityEngine;
 using UnityEngine.Events;
@@ -7,7 +6,7 @@ using UnityEngine.Events;
 namespace Coffee.UIExtensions
 {
    [ExecuteAlways]
-    public class UIParticleAttractor : MonoBehaviour, ISerializationCallbackReceiver
+    public class UIParticleAttractor : MonoBehaviour
    {
        public enum Movement
        {
@@ -23,12 +22,8 @@ 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;
@@ -50,7 +45,7 @@ namespace Coffee.UIExtensions
        [SerializeField]
        private UnityEvent m_OnAttracted;

-        private List<UIParticle> _uiParticles = new List<UIParticle>();
+        private UIParticle _uiParticle;

        public float destinationRadius
        {
@@ -89,46 +84,25 @@ namespace Coffee.UIExtensions
        }

        /// <summary>
-        /// The target ParticleSystems to attract. Use <see cref="AddParticleSystem"/> and
-        /// <see cref="RemoveParticleSystem"/> to modify the list.
+        /// The target ParticleSystem to attract.
        /// </summary>
-        public IReadOnlyList<ParticleSystem> particleSystems => m_ParticleSystems;
-
-        public void AddParticleSystem(ParticleSystem ps)
+#if UNITY_EDITOR
+        public new ParticleSystem particleSystem
+#else
+        public ParticleSystem particleSystem
+#endif
        {
-            if (m_ParticleSystems == null)
+            get => m_ParticleSystem;
+            set
            {
-                m_ParticleSystems = new List<ParticleSystem>();
+                m_ParticleSystem = value;
+                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);
        }

@@ -139,96 +113,85 @@ namespace Coffee.UIExtensions

        private void OnDestroy()
        {
-            _uiParticles = null;
-            m_ParticleSystems = null;
+            _uiParticle = null;
+            m_ParticleSystem = null;
        }

        internal void Attract()
        {
-            // Collect UIParticle if needed (same size as m_ParticleSystems)
-            CollectUIParticlesIfNeeded();
+            if (m_ParticleSystem == null) return;

-            for (var particleIndex = 0; particleIndex < m_ParticleSystems.Count; particleIndex++)
+            var count = m_ParticleSystem.particleCount;
+            if (count == 0) return;
+
+            var particles = ParticleSystemExtensions.GetParticleArray(count);
+            m_ParticleSystem.GetParticles(particles, count);
+
+            var dstPos = GetDestinationPosition();
+            for (var i = 0; i < count; i++)
            {
-                var particleSystem = m_ParticleSystems[particleIndex];
-
-                // 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)
                {
-                    // Attracted
-                    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)
                    {
-                        p.remainingLifetime = 0f;
-                        particles[i] = p;
-
-                        if (m_OnAttracted != null)
+                        try
                        {
-                            try
-                            {
-                                m_OnAttracted.Invoke();
-                            }
-                            catch (Exception e)
-                            {
-                                Debug.LogException(e);
-                            }
+                            m_OnAttracted.Invoke();
+                        }
+                        catch (Exception e)
+                        {
+                            Debug.LogException(e);
                        }
-
-                        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;
+                    continue;
                }

-                particleSystem.SetParticles(particles, count);
+                // 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;
            }
+
+            m_ParticleSystem.SetParticles(particles, count);
        }

-        private Vector3 GetDestinationPosition(UIParticle uiParticle, ParticleSystem particleSystem)
+        private Vector3 GetDestinationPosition()
        {
-            var isUI = uiParticle && uiParticle.enabled;
-            var psPos = particleSystem.transform.position;
+            var isUI = _uiParticle && _uiParticle.enabled;
+            var psPos = m_ParticleSystem.transform.position;
            var attractorPos = transform.position;
            var dstPos = attractorPos;
-            var isLocalSpace = particleSystem.IsLocalSpace();
+            var isLocalSpace = m_ParticleSystem.IsLocalSpace();

            if (isLocalSpace)
            {
-                dstPos = particleSystem.transform.InverseTransformPoint(dstPos);
+                dstPos = m_ParticleSystem.transform.InverseTransformPoint(dstPos);
            }

            if (isUI)
            {
-                var inverseScale = uiParticle.parentScale.Inverse();
-                var scale3d = uiParticle.scale3DForCalc;
+                var inverseScale = _uiParticle.parentScale.Inverse();
+                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;
@@ -274,59 +237,25 @@ namespace Coffee.UIExtensions
            return Vector3.MoveTowards(current, target, speed);
        }

-        private void CollectUIParticlesIfNeeded()
+        private void ApplyParticleSystem()
        {
-            if (m_ParticleSystems.Count == 0 || _uiParticles.Count != 0) return;
-
-            // Expand capacity
-            if (_uiParticles.Capacity < m_ParticleSystems.Capacity)
+            _uiParticle = null;
+            if (m_ParticleSystem == null)
            {
-                _uiParticles.Capacity = m_ParticleSystems.Capacity;
-            }
-
-            // Find UIParticle that controls the ParticleSystem
-            for (var i = 0; i < m_ParticleSystems.Count; i++)
-            {
-                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();
-        }
+                if (Application.isPlaying)
 #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);
+                    Debug.LogError("No particle system attached to particle attractor script", this);
                }

-                m_ParticleSystem = null;
-                Debug.Log($"Upgraded!");
+                return;
+            }
+
+            _uiParticle = m_ParticleSystem.GetComponentInParent<UIParticle>(true);
+            if (_uiParticle && !_uiParticle.particles.Contains(m_ParticleSystem))
+            {
+                _uiParticle = null;
            }
        }
    }
--- a/Runtime/UIParticleAttractor.cs.meta
+++ b/Runtime/UIParticleAttractor.cs.meta
@@ -5,7 +5,7 @@ MonoImporter:
  serializedVersion: 2
  defaultReferences: []
  executionOrder: 0
-  icon: {fileID: 2800000, guid: 5f0675613942149309588d556e33d990, type: 3}
+  icon: {instanceID: 0}
  userData: 
  assetBundleName: 
  assetBundleVariant: 
--- a/Runtime/UIParticleProjectSettings.cs
+++ b/Runtime/UIParticleProjectSettings.cs
@@ -5,7 +5,6 @@ using UnityEngine;

 namespace Coffee.UIExtensions
 {
-    [Icon("Packages/com.coffee.ui-particle/Icons/UIParticleIcon.png")]
    public class UIParticleProjectSettings : PreloadedProjectSettings<UIParticleProjectSettings>
    {
        [Header("Setting")]
@@ -18,18 +17,6 @@ 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()
--- a/Runtime/UIParticleRenderer.cs
+++ b/Runtime/UIParticleRenderer.cs
@@ -4,6 +4,7 @@
 #elif UNITY_2022_3_OR_NEWER
 #define PS_BAKE_API_V2
 #endif
+
 using System;
 using System.Collections.Generic;
 using Coffee.UIParticleInternal;
@@ -15,7 +16,6 @@ using UnityEngine.UI;

 namespace Coffee.UIExtensions
 {
-    [Icon("Packages/com.coffee.ui-particle/Icons/UIParticleIcon.png")]
    [ExecuteAlways]
    [RequireComponent(typeof(RectTransform))]
    [RequireComponent(typeof(CanvasRenderer))]
@@ -25,10 +25,10 @@ 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 +38,10 @@ 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();

@@ -114,7 +114,6 @@ namespace Coffee.UIExtensions
            _parent = null;
            _particleSystem = null;
            _renderer = null;
-            _mainEmitter = null;
            if (0 <= index)
            {
                _index = index;
@@ -139,7 +138,6 @@ namespace Coffee.UIExtensions
        {
            base.OnEnable();

-            hideFlags = UIParticleProjectSettings.globalHideFlags;
            if (!s_CombineInstances[0].mesh)
            {
                s_CombineInstances[0].mesh = new Mesh
@@ -164,7 +162,7 @@ namespace Coffee.UIExtensions
            // Create renderer object.
            var go = new GameObject("[generated] UIParticleRenderer", typeof(UIParticleRenderer))
            {
-                hideFlags = UIParticleProjectSettings.globalHideFlags,
+                hideFlags = HideFlags.HideAndDontSave,
                layer = parent.gameObject.layer
            };

@@ -204,6 +202,7 @@ namespace Coffee.UIExtensions
                return modifiedMaterial;
            }

+            //
            var hash = new Hash128(
                modifiedMaterial ? (uint)modifiedMaterial.GetInstanceID() : 0,
                texture ? (uint)texture.GetInstanceID() : 0,
@@ -226,7 +225,7 @@ namespace Coffee.UIExtensions
            return _modifiedMaterial;
        }

-        public void Set(UIParticle parent, ParticleSystem ps, bool isTrail, ParticleSystem mainEmitter)
+        public void Set(UIParticle parent, ParticleSystem ps, bool isTrail)
        {
            _parent = parent;
            maskable = parent.maskable;
@@ -249,7 +248,10 @@ 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();
@@ -266,7 +268,6 @@ namespace Coffee.UIExtensions
            _prevScreenSize = new Vector2Int(Screen.width, Screen.height);
            _prevCanvasScale = canvas ? canvas.scaleFactor : 1f;
            _delay = true;
-            _mainEmitter = mainEmitter;

            canvasRenderer.SetTexture(null);

@@ -304,7 +305,7 @@ namespace Coffee.UIExtensions

            // Simulate particles.
            Profiler.BeginSample("[UIParticle] Bake Mesh > Simulate Particles");
-            if (!_isTrail && _parent.canSimulate && !_mainEmitter)
+            if (!_isTrail && _parent.canSimulate)
            {
 #if UNITY_EDITOR
                if (!Application.isPlaying)
@@ -422,16 +423,17 @@ namespace Coffee.UIExtensions
                    workerMesh.LinearToGamma();
                }

-                var components = InternalListPool<Component>.Rent();
+                var components = ListPool<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
                }
+#pragma warning restore CS0618 // Type or member is obsolete

-                InternalListPool<Component>.Return(ref components);
+                ListPool<Component>.Return(ref components);
            }

            Profiler.EndSample();
@@ -443,25 +445,22 @@ namespace Coffee.UIExtensions

            // Get grouped renderers.
            Profiler.BeginSample("[UIParticleRenderer] Set Mesh");
-            var renderers = InternalListPool<UIParticleRenderer>.Rent();
+            s_Renderers.Clear();
            if (_parent.useMeshSharing)
            {
-                UIParticleUpdater.GetGroupedRenderers(_parent.groupId, _index, renderers);
+                UIParticleUpdater.GetGroupedRenderers(_parent.groupId, _index, s_Renderers);
            }

-            for (var i = 0; i < renderers.Count; i++)
+            for (var i = 0; i < s_Renderers.Count; i++)
            {
-                var r = renderers[i];
-                if (r == this) continue;
+                if (s_Renderers[i] == this) continue;

-                r.canvasRenderer.SetMesh(workerMesh);
-                r._lastBounds = _lastBounds;
-                r.canvasRenderer.materialCount = 1;
-                r.canvasRenderer.SetMaterial(materialForRendering, 0);
+                s_Renderers[i].canvasRenderer.SetMesh(workerMesh);
+                s_Renderers[i]._lastBounds = _lastBounds;
+                s_Renderers[i].canvasRenderer.materialCount = 1;
+                s_Renderers[i].canvasRenderer.SetMaterial(materialForRendering, 0);
            }

-            InternalListPool<UIParticleRenderer>.Return(ref renderers);
-
            if (_parent.canRender)
            {
                canvasRenderer.SetMesh(workerMesh);
@@ -472,6 +471,8 @@ namespace Coffee.UIExtensions
            }

            Profiler.EndSample();
+
+            s_Renderers.Clear();
        }

        public override void SetMaterialDirty()
@@ -543,30 +544,6 @@ 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))
@@ -629,7 +606,6 @@ namespace Coffee.UIExtensions
                : main.useUnscaledTime
                    ? Time.unscaledDeltaTime
                    : Time.deltaTime;
-            deltaTime *= _parent.timeScaleMultiplier;

            // Pre-warm:
            if (0 < deltaTime && _preWarm)
--- a/Runtime/UIParticleUpdater.cs
+++ b/Runtime/UIParticleUpdater.cs
@@ -40,26 +40,13 @@ 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()
        {
--- a/Runtime/Utilities/ParticleSystemExtensions.cs
+++ b/Runtime/Utilities/ParticleSystemExtensions.cs
@@ -171,30 +171,5 @@ 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;
-        }
    }
 }
--- a/Samples~/Demo/Scripts/UIParticle_Demo.cs
+++ b/Samples~/Demo/Scripts/UIParticle_Demo.cs
@@ -1,4 +1,3 @@
-using Coffee.UIParticleInternal;
 using UnityEngine;
 using UnityEngine.Serialization;
 using UnityEngine.UI;
@@ -52,7 +51,7 @@ namespace Coffee.UIExtensions.Demo

        public void EnableAnimations(bool flag)
        {
-            foreach (var animator in Misc.FindObjectsOfType<Animator>())
+            foreach (var animator in FindObjectsOfType<Animator>())
            {
                animator.enabled = flag;
            }
@@ -80,7 +79,7 @@ namespace Coffee.UIExtensions.Demo

        public void UIParticle_Scale(float scale)
        {
-            foreach (var uip in Misc.FindObjectsOfType<UIParticle>())
+            foreach (var uip in FindObjectsOfType<UIParticle>())
            {
                uip.scale = scale;
            }
@@ -88,7 +87,7 @@ namespace Coffee.UIExtensions.Demo

        public void ParticleSystem_WorldSpaseSimulation(bool flag)
        {
-            foreach (var p in Misc.FindObjectsOfType<ParticleSystem>())
+            foreach (var p in FindObjectsOfType<ParticleSystem>())
            {
                var main = p.main;
                main.simulationSpace = flag
@@ -124,7 +123,7 @@ namespace Coffee.UIExtensions.Demo

        public void ParticleSystem_SetScale(float scale)
        {
-            foreach (var ps in Misc.FindObjectsOfType<ParticleSystem>())
+            foreach (var ps in FindObjectsOfType<ParticleSystem>())
            {
                ps.transform.localScale = new Vector3(scale, scale, scale);
            }
--- a/Samples~/Demo/Sprites/UIParticle_Demo_Light_Frame.png.meta
+++ b/Samples~/Demo/Sprites/UIParticle_Demo_Light_Frame.png.meta
@@ -42,12 +42,12 @@ TextureImporter:
  compressionQuality: 50
  spriteMode: 1
  spriteExtrude: 1
-  spriteMeshType: 0
+  spriteMeshType: 1
  alignment: 0
  spritePivot: {x: 0.5, y: 0.5}
  spritePixelsToUnits: 100
  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 0
+  spriteGenerateFallbackPhysicsShape: 1
  alphaUsage: 1
  alphaIsTransparency: 1
  spriteTessellationDetail: -1
--- a/Samples~/Demo/Sprites/UIParticle_Demo_Move.png.meta
+++ b/Samples~/Demo/Sprites/UIParticle_Demo_Move.png.meta
@@ -27,7 +27,7 @@ TextureImporter:
  generateCubemap: 6
  cubemapConvolution: 0
  seamlessCubemap: 0
-  textureFormat: 4
+  textureFormat: 1
  maxTextureSize: 2048
  textureSettings:
    serializedVersion: 2
@@ -42,12 +42,12 @@ TextureImporter:
  compressionQuality: 50
  spriteMode: 1
  spriteExtrude: 1
-  spriteMeshType: 0
+  spriteMeshType: 1
  alignment: 0
  spritePivot: {x: 0.5, y: 0.5}
  spritePixelsToUnits: 100
  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 0
+  spriteGenerateFallbackPhysicsShape: 1
  alphaUsage: 1
  alphaIsTransparency: 1
  spriteTessellationDetail: -1
--- a/Samples~/Demo/Sprites/UIParticle_Demo_Star.png.meta
+++ b/Samples~/Demo/Sprites/UIParticle_Demo_Star.png.meta
@@ -42,12 +42,12 @@ TextureImporter:
  compressionQuality: 50
  spriteMode: 1
  spriteExtrude: 1
-  spriteMeshType: 0
+  spriteMeshType: 1
  alignment: 0
  spritePivot: {x: 0.5, y: 0.5}
  spritePixelsToUnits: 100
  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 0
+  spriteGenerateFallbackPhysicsShape: 1
  alphaUsage: 0
  alphaIsTransparency: 1
  spriteTessellationDetail: -1
--- a/Samples~/Demo/Sprites/UIParticle_Demo_Unity-chan.png.meta
+++ b/Samples~/Demo/Sprites/UIParticle_Demo_Unity-chan.png.meta
@@ -27,7 +27,7 @@ TextureImporter:
  generateCubemap: 6
  cubemapConvolution: 0
  seamlessCubemap: 0
-  textureFormat: 4
+  textureFormat: -1
  maxTextureSize: 2048
  textureSettings:
    serializedVersion: 2
@@ -42,12 +42,12 @@ TextureImporter:
  compressionQuality: 50
  spriteMode: 1
  spriteExtrude: 1
-  spriteMeshType: 0
+  spriteMeshType: 1
  alignment: 0
  spritePivot: {x: 0.5, y: 0.5}
  spritePixelsToUnits: 100
  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 0
+  spriteGenerateFallbackPhysicsShape: 1
  alphaUsage: 1
  alphaIsTransparency: 1
  spriteTessellationDetail: -1
--- a/Shaders/UIAdditive.shader
+++ b/Shaders/UIAdditive.shader
@@ -40,10 +40,7 @@
        Lighting Off
        ZWrite Off
        ZTest [unity_GUIZTestMode]
-        Fog
-        {
-            Mode Off
-        }
+        Fog { Mode Off }
        Blend One One

        ColorMask [_ColorMask]
@@ -64,21 +61,21 @@

            struct appdata_t
            {
-                float4 vertex : POSITION;
-                float4 color : COLOR;
+                float4 vertex   : POSITION;
+                float4 color    : COLOR;
                float2 texcoord : TEXCOORD0;
                UNITY_VERTEX_INPUT_INSTANCE_ID
            };

            struct v2f
            {
-                float4 vertex : SV_POSITION;
-                fixed4 color : COLOR;
-                float2 texcoord : TEXCOORD0;
-                float4 worldPosition : TEXCOORD1;
+                float4 vertex           : SV_POSITION;
+                fixed4 color            : COLOR;
+                float2 texcoord         : TEXCOORD0;
+                float4 worldPosition    : TEXCOORD1;
                UNITY_VERTEX_OUTPUT_STEREO
            };
-
+            
            fixed4 _Color;
            sampler2D _MainTex;
            float4 _MainTex_ST;
@@ -117,4 +114,4 @@
            ENDCG
        }
    }
-}
+}
--- a/package.json
+++ b/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": "4.11.1",
+  "version": "5.0.0-preview.3",
  "unity": "2018.2",
  "license": "MIT",
  "repository": {
Author	SHA1	Message	Date
semantic-release-bot	b068238e0a	chore(release): 5.0.0-preview.3 [skip ci] # [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) ### Bug Fixes * generated baking-camera object remains in the prefab or scene ([`fd66928`](`fd66928efe`))	2024-06-21 05:23:11 +00:00
mob-sakai	42fb0ecf23	fix: generated baking-camera object remains in the prefab or scene	2024-06-21 14:22:34 +09:00
semantic-release-bot	79635e81d7	chore(release): 5.0.0-preview.2 [skip ci] # [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) ### Bug Fixes * 'Resource ID out of range in GetResource' error in overlay rendering mode ([`ff78b6f`](`ff78b6fe32`)), closes [#308](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/308) * `UIParticle.transform.localScale` does not scale particles ([`491ee7b`](`491ee7b0c3`)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313) * despite not using the size module, particles become smaller based on their z position ([`c96ddf2`](`c96ddf293e`)), 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`](`a9c2b19edf`)), closes [#299](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/299) [#312](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/312) * UIParticle is scaled by canvas size even when `AutoScalingMode.None` and `ScalingMode.Local` ([`63b24d8`](`63b24d8a8b`)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313) * UIParticle is scaled incorrectly with nested canvases ([`c95d8c6`](`c95d8c6b17`)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313) ### Features * remove overlay window (editor) ([`fc3fbdd`](`fc3fbdd230`)) * reset previous position on start play for world space simulation ([`e741584`](`e741584507`)), closes [#303](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/303) * restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` ([`dfb94f4`](`dfb94f4bad`))	2024-06-20 15:27:14 +00:00
mob-sakai	f388eb45ec	fix: despite not using the size module, particles become smaller based on their z position close #316	2024-06-20 12:52:21 +09:00
mob-sakai	f08809772a	feat: restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` # Conflicts: # Packages/src/Editor/UIParticleEditor.cs # Packages/src/Runtime/UIParticle.cs	2024-06-20 12:52:21 +09:00
mob-sakai	f96604ffc9	feat: reset previous position on start play for world space simulation close #303 # Conflicts: # Packages/src/Runtime/UIParticleRenderer.cs	2024-06-20 12:52:21 +09:00
mob-sakai	beac3b8048	docs: update license	2024-06-20 12:52:21 +09:00
mob-sakai	a00bcd8a35	fix demo	2024-06-20 12:52:21 +09:00
mob-sakai	1f72048ef5	fix: `UIParticle.transform.localScale` does not scale particles close #313	2024-06-19 13:49:00 +09:00
mob-sakai	65f7555482	fix: UIParticle is scaled by canvas size even when `AutoScalingMode.None` and `ScalingMode.Local` close #313	2024-06-19 13:48:54 +09:00
mob-sakai	433f828ad9	fix: UIParticle is scaled incorrectly with nested canvases close #313	2024-06-19 13:48:46 +09:00
mob-sakai	1b8f0aac4a	refactor: refactor	2024-06-19 13:47:51 +09:00
SAMYTHEBIGJUICY	70271ae5e9	fix: 'Resource ID out of range in GetResource' error in overlay rendering mode #308	2024-06-14 11:35:15 +09:00
mob-sakai	c3540a056c	update coffee.internal	2024-06-14 11:27:47 +09:00
mob-sakai	0cf4ae88c5	fix: the ParticleSystem's localPosition drifts at certain scales due to floating-point precision issues close #299, close #312	2024-05-24 17:49:07 +09:00
mob-sakai	e579f524ba	feat: remove overlay window (editor)	2024-05-24 17:44:14 +09:00
semantic-release-bot	23dd7b5987	chore(release): 5.0.0-preview.1 [skip ci] # [5.0.0-preview.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.6...v5.0.0-preview.1) (2024-05-23) ### Features * add project settings for UIParticle ([`b6e6185`](`b6e6185c52`)) * change the default value of `UIParticle.scale` from `10` to `1` ([`1b3c0f9`](`1b3c0f92dc`)), closes [#310](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/310) * UIParticle no longer inherits from MaskableGraphic ([`b6d921b`](`b6d921b3e4`)) ### BREAKING CHANGES * Some members inherited from MaskableGraphic will no longer be available.	2024-05-23 11:19:50 +00:00
mob-sakai	f476898b46	fix preview release workflow	2024-05-23 20:17:25 +09:00
mob-sakai	4e91b6f69b	feat: change the default value of `UIParticle.scale` from `10` to `1` close #310	2024-05-23 20:10:33 +09:00
mob-sakai	1bf669e09f	docs: update readme	2024-05-23 20:10:33 +09:00
mob-sakai	54be6bf588	refactor: refactor	2024-05-23 20:10:33 +09:00
mob-sakai	72f5f9441b	feat: add project settings for UIParticle	2024-05-23 20:10:33 +09:00
mob-sakai	acebfb27f6	feat: UIParticle no longer inherits from MaskableGraphic BREAKING CHANGE: Some members inherited from MaskableGraphic will no longer be available.	2024-05-23 20:10:33 +09:00
mob-sakai	a3e725fd5a	refactor: using Coffee.Internal	2024-05-23 20:10:33 +09:00