update demo

- enableLinearToGamma: Enables LinearToGamma during mesh baking

.editorconfig

@@ -25,6 +25,7 @@ indent_size = 4
 trim_trailing_whitespace = true
 insert_final_newline = true
 
+csharp_style_namespace_declarations = block_scoped
 csharp_style_implicit_object_creation_when_type_is_apparent = false
 resharper_object_creation_when_type_evident = explicitly_typed
 
@@ -86,6 +87,9 @@ csharp_style_var_elsewhere = true:suggestion
 dotnet_style_predefined_type_for_locals_parameters_members = true:suggestion
 dotnet_style_predefined_type_for_member_access = true:suggestion
 
+# 
+resharper_keep_existing_embedded_arrangement = true
+
 # Arguments
 csharp_arguments_literal = named:suggestion
 csharp_arguments_string_literal = named:suggestion
@@ -134,7 +138,7 @@ dotnet_naming_style._camel_case.capitalization = camel_case
 
 # Code style defaults
 dotnet_sort_system_directives_first = true
-csharp_preserve_single_line_statements = false:none
+csharp_preserve_single_line_statements = false
 csharp_prefer_static_local_function = true:suggestion
 csharp_prefer_simple_using_statement = false:none
 csharp_style_prefer_switch_expression = true:suggestion
@@ -186,7 +190,7 @@ csharp_space_after_dot = false
 csharp_space_after_keywords_in_control_flow_statements = true
 csharp_space_after_semicolon_in_for_statement = true
 csharp_space_around_binary_operators = before_and_after
-csharp_space_around_declaration_statements = do_not_ignore
+csharp_space_around_declaration_statements = false
 csharp_space_before_colon_in_inheritance_clause = true
 csharp_space_before_comma = false
 csharp_space_before_dot = false

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Assets/Demo/CustomView/UI-Color.shader

@@ -0,0 +1,177 @@
+Shader "UI/Color"
+{
+    Properties
+    {
+        _MainTex ("Main Texture", 2D) = "white" {}
+        _Color ("Tint", Color) = (1,1,1,1)
+        [KeywordEnum(Multipry, Additive, Subtract, Fill)] _ColorMode ("Color Mode", Int) = 0
+        [Enum(UnityEngine.Rendering.BlendMode)] _SrcBlend ("Src Blend Mode", Int) = 1
+        [Enum(UnityEngine.Rendering.BlendMode)] _DstBlend ("Dst Blend Mode", Int) = 10
+
+        _StencilComp ("Stencil Comparison", Float) = 8
+        _Stencil ("Stencil ID", Float) = 0
+        _StencilOp ("Stencil Operation", Float) = 0
+        _StencilWriteMask ("Stencil Write Mask", Float) = 255
+        _StencilReadMask ("Stencil Read Mask", Float) = 255
+
+        _ColorMask ("Color Mask", Float) = 15
+
+        [Toggle(UNITY_UI_ALPHACLIP)] _UseUIAlphaClip ("Use Alpha Clip", Float) = 0
+    }
+
+    SubShader
+    {
+        Tags
+        {
+            "Queue"="Transparent"
+            "IgnoreProjector"="True"
+            "RenderType"="Transparent"
+            "PreviewType"="Plane"
+            "CanUseSpriteAtlas"="True"
+        }
+
+        Stencil
+        {
+            Ref [_Stencil]
+            Comp [_StencilComp]
+            Pass [_StencilOp]
+            ReadMask [_StencilReadMask]
+            WriteMask [_StencilWriteMask]
+        }
+
+        Cull Off
+        Lighting Off
+        ZWrite Off
+        ZTest [unity_GUIZTestMode]
+        Blend [_SrcBlend] [_DstBlend]
+        ColorMask [_ColorMask]
+
+        Pass
+        {
+            Name "Default"
+            CGPROGRAM
+            #pragma vertex vert
+            #pragma fragment frag
+            #pragma target 2.0
+
+            #include "UnityCG.cginc"
+            #include "UnityUI.cginc"
+
+            #pragma multi_compile_local _ UNITY_UI_CLIP_RECT
+            #pragma multi_compile_local _ UNITY_UI_ALPHACLIP
+
+            sampler2D _MainTex;
+            fixed4 _Color;
+            fixed4 _TextureSampleAdd;
+            float4 _ClipRect;
+            float4 _MainTex_ST;
+            float _UIMaskSoftnessX;
+            float _UIMaskSoftnessY;
+            int _UIVertexColorAlwaysGammaSpace;
+            int _ColorMode;
+
+            struct appdata_t
+            {
+                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 mask : TEXCOORD2;
+                UNITY_VERTEX_OUTPUT_STEREO
+            };
+
+            v2f vert(appdata_t v)
+            {
+                v2f OUT;
+                UNITY_SETUP_INSTANCE_ID(v);
+                UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(OUT);
+                float4 vPosition = UnityObjectToClipPos(v.vertex);
+                OUT.worldPosition = v.vertex;
+                OUT.vertex = vPosition;
+
+                float2 pixelSize = vPosition.w;
+                pixelSize /= float2(1, 1) * abs(mul((float2x2)UNITY_MATRIX_P, _ScreenParams.xy));
+
+                float4 clampedRect = clamp(_ClipRect, -2e10, 2e10);
+                float2 maskUV = (v.vertex.xy - clampedRect.xy) / (clampedRect.zw - clampedRect.xy);
+                OUT.texcoord = TRANSFORM_TEX(v.texcoord.xy, _MainTex);
+                OUT.mask = float4(v.vertex.xy * 2 - clampedRect.xy - clampedRect.zw,
+                                  0.25 / (0.25 * half2(_UIMaskSoftnessX, _UIMaskSoftnessY) + abs(pixelSize.xy)));
+
+                if (_UIVertexColorAlwaysGammaSpace)
+                {
+                    if (!IsGammaSpace())
+                    {
+                        v.color.rgb = GammaToLinearSpace(v.color.rgb);
+                    }
+                }
+
+                OUT.color = v.color * _Color;
+                return OUT;
+            }
+
+            half4 apply_color(half4 color, const half4 factor, const int mode)
+            {
+                const half3 c = factor.rgb * color.a;
+                // Mode 1: Additive
+                if (mode == 1)
+                {
+                    color.rgb += c;
+                }
+                // Mode 2: Subtract
+                else if (mode == 2)
+                {
+                    color.rgb -= c;
+                }
+                // Mode 3: Replace
+                else if (mode == 3)
+                {
+                    color.rgb = c;
+                }
+                // Default: Multiply
+                else
+                {
+                    color.rgb *= c;
+                }
+
+                return color * factor.a;
+            }
+
+            fixed4 frag(v2f IN) : SV_Target
+            {
+                //Round up the alpha color coming from the interpolator (to 1.0/256.0 steps)
+                //The incoming alpha could have numerical instability, which makes it very sensible to
+                //HDR color transparency blend, when it blends with the world's texture.
+                const half alphaPrecision = half(0xff);
+                const half invAlphaPrecision = half(1.0 / alphaPrecision);
+                float2 uv = IN.texcoord;
+
+                IN.color.a = round(IN.color.a * alphaPrecision) * invAlphaPrecision;
+                half4 color = tex2D(_MainTex, uv) + _TextureSampleAdd;
+
+                #if UNITY_UI_CLIP_RECT
+                half2 m = saturate((_ClipRect.zw - _ClipRect.xy - abs(IN.mask.xy)) * IN.mask.zw);
+                color.a *= m.x * m.y;
+                #endif
+
+                #if UNITY_UI_ALPHACLIP
+                clip (color.a - 0.001);
+                #endif
+
+                // Apply color mode.
+                color = apply_color(color, IN.color, _ColorMode);
+
+                return color;
+            }
+            ENDCG
+        }
+    }
+}

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Assets/Demo/Performance Demo/Scripts/UIParticle_PerformanceDemo.cs

@@ -46,7 +46,11 @@ namespace Coffee.UIExtensions.Demo
 
             if (!flag)
             {
+#if UNITY_2023_1_OR_NEWER
+                foreach (var ps in FindObjectsByType<ParticleSystem>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
                 foreach (var ps in FindObjectsOfType<ParticleSystem>())
+#endif
                 {
                     ps.Play(false);
                 }
@@ -75,7 +79,11 @@ namespace Coffee.UIExtensions.Demo
 
         public void ParticleSystem_SetScale(float scale)
         {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var ps in FindObjectsByType<ParticleSystem>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
             foreach (var ps in FindObjectsOfType<ParticleSystem>())
+#endif
             {
                 ps.transform.localScale = new Vector3(scale, scale, scale);
             }

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@@ -14,15 +14,15 @@ MonoBehaviour:
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   m_BootSceneNameRegex: .*
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+  m_DevelopmentBuildOnly: 0
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+  m_Anchor: 0
+  m_Width: 750
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@@ -31,3 +31,10 @@ MonoBehaviour:
       m_Path: UnityEngine.Screen, UnityEngine.CoreModule;height
     m_Arg2:
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+  - m_Format: UIParticles:{0} Materials:{1}
+    m_Arg0:
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+    m_Arg1:
+      m_Path: Coffee.UIParticleInternal.MaterialRepository, Coffee.UIParticle;count
+    m_Arg2:
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Packages/manifest.json

@@ -1,9 +1,8 @@
 {
   "dependencies": {
-    "com.unity.ide.rider": "3.0.27",
+    "com.unity.ide.rider": "3.0.31",
     "com.coffee.development": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/Development",
     "com.coffee.nano-monitor": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/NanoMonitor",
-    "com.coffee.simple-scene-navigator": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/SceneNavigator",
     "com.coffee.sub-asset-editor": "https://github.com/mob-sakai/SubAssetEditor.git",
     "com.unity.test-framework": "1.1.33",
     "com.unity.modules.animation": "1.0.0",

Packages/packages-lock.json

@@ -5,7 +5,7 @@
       "depth": 0,
       "source": "git",
       "dependencies": {},
-      "hash": "4a57c0a498ba7ce667290ec39510b1474030471a"
+      "hash": "c51e4514c9ab944915a639433ee52342e55a644e"
     },
     "com.coffee.nano-monitor": {
       "version": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/NanoMonitor",
@@ -14,16 +14,7 @@
       "dependencies": {
         "com.unity.ugui": "1.0.0"
       },
-      "hash": "4a57c0a498ba7ce667290ec39510b1474030471a"
+      "hash": "c51e4514c9ab944915a639433ee52342e55a644e"
-    },
-    "com.coffee.simple-scene-navigator": {
-      "version": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/SceneNavigator",
-      "depth": 0,
-      "source": "git",
-      "dependencies": {
-        "com.unity.ugui": "1.0.0"
-      },
-      "hash": "4a57c0a498ba7ce667290ec39510b1474030471a"
     },
     "com.coffee.sub-asset-editor": {
       "version": "https://github.com/mob-sakai/SubAssetEditor.git",
@@ -49,7 +40,7 @@
       "url": "https://packages.unity.com"
     },
     "com.unity.ide.rider": {
-      "version": "3.0.27",
+      "version": "3.0.31",
       "depth": 0,
       "source": "registry",
       "dependencies": {

Packages/src/CHANGELOG.md

@@ -1,35 +1,75 @@
-# [5.0.0-preview.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v5.0.0-preview.1...v5.0.0-preview.2) (2024-06-20)
+# [4.9.0](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
 
-* '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)
+* remove debug code ([669deb4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/669deb41d4ac589d9db93b29bc8e95383e7f28a5))
-* `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)
+# [4.8.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.7.2...v4.8.0) (2024-06-27)
-* 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)
+### 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
 
-* remove overlay window (editor) ([fc3fbdd](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/fc3fbdd230595ad3471875ec6fec384a3dad0d17))
+* add 'custom view' option. ([a703c29](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/a703c2921ca08c2280d0c8fde01e4c0b33b5c69e))
-* 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)
+* remove overlay window (editor) ([8358170](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/835817049f4fcf00dd2bf98dbada14f041ad3544))
-* restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` ([dfb94f4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/dfb94f4badfb3035a4374579c53293460b4fd946))
+* 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))
 
-# [5.0.0-preview.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.6...v5.0.0-preview.1) (2024-05-23)
+## [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
 
-* add project settings for UIParticle ([b6e6185](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/b6e6185c521fef0f118f61cfdfdac07b87555c01))
+* 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)
-* 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)
+* restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` ([5505247](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/5505247a94a929ff89635fde512a9b95691e0043))
-* UIParticle no longer inherits from MaskableGraphic ([b6d921b](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/b6d921b3e47f749b5028d22b0e89b6eb3a1af7de))
+
+## [4.6.8](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.7...v4.6.8) (2024-06-14)
 
 
-### BREAKING CHANGES
+### Bug Fixes
 
-* Some members inherited from MaskableGraphic will no longer be available.
+* 'Resource ID out of range in GetResource' error in overlay rendering mode ([05286ce](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/05286cedfd17b1a0cb90a5e918513644f47cd831)), closes [#308](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/308)
+
+## [4.6.7](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.6...v4.6.7) (2024-05-24)
+
+
+### Bug Fixes
+
+* the ParticleSystem's localPosition drifts at certain scales due to floating-point precision issues ([e924eb4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/e924eb45968a112347471cabaeabc274e4c37ce4)), closes [#299](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/299) [#312](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/312)
 
 ## [4.6.6](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.5...v4.6.6) (2024-05-23)
 

Packages/src/Editor/AnimatablePropertyEditor.cs

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

Packages/src/Editor/UIParticleEditor.cs

@@ -4,6 +4,7 @@ using System.Text.RegularExpressions;
 using UnityEditor;
 using UnityEditorInternal;
 using UnityEngine;
+using UnityEngine.Profiling;
 using UnityEngine.UI;
 
 #if UNITY_2021_2_OR_NEWER
@@ -31,14 +32,21 @@ namespace Coffee.UIExtensions
         //################################
         // 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;
@@ -49,6 +57,8 @@ namespace Coffee.UIExtensions
         private SerializedProperty _groupMaxId;
         private SerializedProperty _positionMode;
         private SerializedProperty _autoScalingMode;
+        private SerializedProperty _useCustomView;
+        private SerializedProperty _customViewSize;
         private ReorderableList _ro;
         private bool _showMax;
 
@@ -82,31 +92,43 @@ namespace Coffee.UIExtensions
             _groupMaxId = serializedObject.FindProperty("m_GroupMaxId");
             _positionMode = serializedObject.FindProperty("m_PositionMode");
             _autoScalingMode = serializedObject.FindProperty("m_AutoScalingMode");
+            _useCustomView = serializedObject.FindProperty("m_UseCustomView");
+            _customViewSize = serializedObject.FindProperty("m_CustomViewSize");
 
             var sp = serializedObject.FindProperty("m_Particles");
             _ro = new ReorderableList(sp.serializedObject, sp, true, true, true, true)
             {
-                elementHeight = EditorGUIUtility.singleLineHeight * 3 + 4,
+                elementHeightCallback = index =>
-                elementHeightCallback = _ => 3 * (EditorGUIUtility.singleLineHeight + 2),
+                {
+                    var ps = sp.GetArrayElementAtIndex(index).objectReferenceValue as ParticleSystem;
+                    var materialCount = 0;
+                    if (ps && ps.TryGetComponent<ParticleSystemRenderer>(out var psr))
+                    {
+                        materialCount = psr.sharedMaterials.Length;
+                    }
+
+                    return (materialCount + 1) * (EditorGUIUtility.singleLineHeight + 2);
+                },
                 drawElementCallback = (rect, index, _, __) =>
                 {
-                    EditorGUI.BeginDisabledGroup(sp.hasMultipleDifferentValues);
+                    rect.y += 2;
-                    rect.y += 1;
                     rect.height = EditorGUIUtility.singleLineHeight;
                     var p = sp.GetArrayElementAtIndex(index);
                     EditorGUI.ObjectField(rect, p, GUIContent.none);
+                    var ps = p.objectReferenceValue as ParticleSystem;
+                    if (!ps || !ps.TryGetComponent<ParticleSystemRenderer>(out var psr)) return;
+
                     rect.x += 15;
                     rect.width -= 15;
-                    var ps = p.objectReferenceValue as ParticleSystem;
+                    var materials = new SerializedObject(psr).FindProperty("m_Materials");
-                    var materials = ps
+                    var count = Mathf.Min(materials.arraySize, 2);
-                        ? new SerializedObject(ps.GetComponent<ParticleSystemRenderer>()).FindProperty("m_Materials")
+                    for (var i = 0; i < count; i++)
-                        : null;
+                    {
-                    rect.y += rect.height + 1;
+                        rect.y += rect.height + 2;
-                    MaterialField(rect, s_ContentMaterial, materials, 0);
+                        EditorGUI.PropertyField(rect, materials.GetArrayElementAtIndex(i), s_ContentMaterials[i]);
-                    rect.y += rect.height + 1;
+                    }
-                    MaterialField(rect, s_ContentTrailMaterial, materials, 1);
+
-                    EditorGUI.EndDisabledGroup();
+                    if (materials.serializedObject.hasModifiedProperties)
-                    if (materials != null && materials.serializedObject.hasModifiedProperties)
                     {
                         materials.serializedObject.ApplyModifiedProperties();
                     }
@@ -142,20 +164,6 @@ namespace Coffee.UIExtensions
             }
         }
 
-        private static void MaterialField(Rect rect, GUIContent label, SerializedProperty sp, int index)
-        {
-            if (sp == null || sp.arraySize <= index)
-            {
-                EditorGUI.BeginDisabledGroup(true);
-                EditorGUI.ObjectField(rect, label, null, typeof(Material), true);
-                EditorGUI.EndDisabledGroup();
-            }
-            else
-            {
-                EditorGUI.PropertyField(rect, sp.GetArrayElementAtIndex(index), label);
-            }
-        }
-
         /// <summary>
         /// Implement this function to make a custom inspector.
         /// </summary>
@@ -164,6 +172,7 @@ namespace Coffee.UIExtensions
             var current = target as UIParticle;
             if (!current) return;
 
+            Profiler.BeginSample("(UIP:E) OnInspectorGUI");
             serializedObject.Update();
 
             // Maskable
@@ -175,13 +184,8 @@ namespace Coffee.UIExtensions
             EditorGUI.EndDisabledGroup();
 
             // AnimatableProperties
-            var mats = current.particles
+            current.GetMaterials(s_TempMaterials);
-                .Where(x => x)
+            AnimatablePropertyEditor.Draw(_animatableProperties, s_TempMaterials);
-                .Select(x => x.GetComponent<ParticleSystemRenderer>().sharedMaterial)
-                .Where(x => x)
-                .ToArray();
-
-            AnimatablePropertyEditor.Draw(_animatableProperties, mats);
 
             // Mesh sharing
             EditorGUI.BeginChangeCheck();
@@ -189,9 +193,12 @@ namespace Coffee.UIExtensions
             if (EditorGUI.EndChangeCheck())
             {
                 serializedObject.ApplyModifiedProperties();
-                foreach (var uip in targets.OfType<UIParticle>())
+                foreach (var t in targets)
                 {
-                    uip.ResetGroupId();
+                    if (t is UIParticle uip)
+                    {
+                        uip.ResetGroupId();
+                    }
                 }
             }
 
@@ -199,16 +206,29 @@ namespace Coffee.UIExtensions
             EditorGUILayout.PropertyField(_positionMode);
 
             // Auto Scaling
-            DrawAutoScaling(_autoScalingMode, targets.OfType<UIParticle>());
+            EditorGUILayout.PropertyField(_autoScalingMode);
+
+            // Custom View Size
+            EditorGUILayout.PropertyField(_useCustomView);
+            EditorGUI.BeginChangeCheck();
+            EditorGUI.BeginDisabledGroup(!_useCustomView.boolValue);
+            EditorGUI.indentLevel++;
+            EditorGUILayout.PropertyField(_customViewSize);
+            EditorGUI.indentLevel--;
+            EditorGUI.EndDisabledGroup();
+            if (EditorGUI.EndChangeCheck())
+            {
+                _customViewSize.floatValue = Mathf.Max(0.1f, _customViewSize.floatValue);
+            }
 
             // Target ParticleSystems.
             EditorGUI.BeginChangeCheck();
-            EditorGUI.BeginDisabledGroup(targets.OfType<UIParticle>().Any(x => !x.canvas));
             _ro.DoLayoutList();
-            EditorGUI.EndDisabledGroup();
             serializedObject.ApplyModifiedProperties();
+
             if (EditorGUI.EndChangeCheck())
             {
+                EditorApplication.QueuePlayerLoopUpdate();
                 foreach (var uip in targets.OfType<UIParticle>())
                 {
                     uip.RefreshParticles(uip.particles);
@@ -216,7 +236,8 @@ namespace Coffee.UIExtensions
             }
 
             // Non-UI built-in shader is not supported.
-            foreach (var mat in current.materials)
+            Profiler.BeginSample("(UIP:E) Non-UI built-in shader is not supported.");
+            foreach (var mat in s_TempMaterials)
             {
                 if (!mat || !mat.shader) continue;
                 var shader = mat.shader;
@@ -229,15 +250,18 @@ namespace Coffee.UIExtensions
                 }
             }
 
+            Profiler.EndSample();
+
             // Does the shader support UI masks?
+            Profiler.BeginSample("(UIP:E) Does the shader support UI masks?");
             if (current.maskable && current.GetComponentInParent<Mask>(false))
             {
-                foreach (var mat in current.materials)
+                foreach (var mat in s_TempMaterials)
                 {
                     if (!mat || !mat.shader) continue;
                     var shader = mat.shader;
-                    if (s_Shaders.Contains(shader)) continue;
+                    if (!s_Shaders.Add(shader)) continue;
-                    s_Shaders.Add(shader);
+
                     foreach (var propName in s_MaskablePropertyNames)
                     {
                         if (mat.HasProperty(propName)) continue;
@@ -251,7 +275,9 @@ namespace Coffee.UIExtensions
                 }
             }
 
+            s_TempMaterials.Clear();
             s_Shaders.Clear();
+            Profiler.EndSample();
 
             // UIParticle for trail should be removed.
             var label = "This UIParticle component should be removed. The UIParticle for trails is no longer needed.";
@@ -290,12 +316,14 @@ namespace Coffee.UIExtensions
                 }
             }
 #endif
+            Profiler.EndSample();
         }
 
-        private bool IsBuiltInObject(Object obj)
+        private static bool IsBuiltInObject(Object obj)
         {
-            return AssetDatabase.TryGetGUIDAndLocalFileIdentifier(obj, out var guid, out long _)
+            return AssetDatabase.IsMainAsset(obj)
-                   && Regex.IsMatch(guid, "^0{16}.0{15}$", RegexOptions.Compiled);
+                   && AssetDatabase.TryGetGUIDAndLocalFileIdentifier(obj, out var guid, out long _)
+                   && s_RegexBuiltInGuid.IsMatch(guid);
         }
 
 #if UNITY_2018 || UNITY_2019
@@ -389,7 +417,7 @@ namespace Coffee.UIExtensions
             {
                 EditorGUI.BeginDisabledGroup(true);
                 var obj = UIParticleUpdater.GetPrimary(spGroupId.intValue);
-                EditorGUILayout.ObjectField("Primary", obj, typeof(UIParticle), false);
+                EditorGUILayout.ObjectField(s_ContentPrimary, obj, typeof(UIParticle), false);
                 EditorGUI.EndDisabledGroup();
             }
 
@@ -399,7 +427,7 @@ namespace Coffee.UIExtensions
             return showMax;
         }
 
-        private static void DrawAutoScaling(SerializedProperty prop, IEnumerable<UIParticle> uiParticles)
+        private static void DrawAutoScaling(SerializedProperty prop)
         {
             EditorGUILayout.PropertyField(prop);
         }

Packages/src/README.md

@@ -1,61 +1,86 @@
-# <img alt="UIParticleIcon" src="https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/d76e105e-a840-4f61-a1f6-8cf311c0812d" width="26"/> Particle Effect For UGUI (UI Particle)
+# <img alt="UIParticleIcon" src="https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/d76e105e-a840-4f61-a1f6-8cf311c0812d" width="26"/> Particle Effect For UGUI (UI Particle) <!-- omit in toc -->
-
-This package provides a component to render particle effects for uGUI in Unity 2018.2 or later.  
-The particle rendering is maskable and sortable, without the need for an extra Camera, RenderTexture, or Canvas.
 
 [![](https://img.shields.io/npm/v/com.coffee.ui-particle?label=openupm&registry_uri=https://package.openupm.com)](https://openupm.com/packages/com.coffee.ui-particle/)
-[![](https://img.shields.io/github/v/release/mob-sakai/ParticleEffectForUGUI?include_prereleases)](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
+[![](https://img.shields.io/github/v/release/mob-sakai/ParticleEffectForUGUI)](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
-[![](https://img.shields.io/github/license/mob-sakai/ParticleEffectForUGUI.svg)](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/LICENSE.txt)  
+[![](https://img.shields.io/github/license/mob-sakai/ParticleEffectForUGUI.svg)](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/LICENSE.md)  
 ![](https://img.shields.io/badge/Unity-2018.2+-57b9d3.svg?style=flat&logo=unity)
+![](https://img.shields.io/badge/uGUI_2.0_Ready-57b9d3.svg?style=flat)
+![](https://img.shields.io/badge/UPR%2FHDPR_Ready-57b9d3.svg?style=flat)  
 ![](https://github.com/mob-sakai/ParticleEffectForUGUI/actions/workflows/test.yml/badge.svg?branch=develop)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-orange.svg)](http://makeapullrequest.com)
+[![](https://img.shields.io/github/watchers/mob-sakai/ParticleEffectForUGUI.svg?style=social&label=Watch)](https://github.com/mob-sakai/ParticleEffectForUGUI/subscription)
 [![](https://img.shields.io/twitter/follow/mob_sakai.svg?label=Follow&style=social)](https://twitter.com/intent/follow?screen_name=mob_sakai)
 
-<< [📝 Description](#-description) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>
+<< [📝 Description](#-description-) | [📌 Key Features](#-key-features) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🔄 Upgrading to 5.x](#-upgrading-from-3x4x-to-5x) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>
 
-<br><br>
+## 📝 Description <!-- omit in toc -->
-
-## 📝 Description
 
 ![](https://user-images.githubusercontent.com/12690315/41771577-8da4b968-7650-11e8-9524-cd162c422d9d.gif)
 
-This package utilizes the new APIs `MeshBake/MashTrailBake` (introduced with Unity 2018.2) to render particles through
+This package uses the new APIs `MeshBake/MeshTrailBake` (introduced in Unity 2018.2) to render particles through `CanvasRenderer`.  
-CanvasRenderer.  
+You can render, mask, and sort your `ParticleSystems` for UI without the need for an additional `Camera`, `RenderTexture`, or `Canvas`.
-You can render, mask, and sort your ParticleSystems for UI without the necessity of an additional Camera, RenderTexture,
-or Canvas.
 
-### Features
+- [📌 Key Features](#-key-features)
+- [🎮 Demo](#-demo)
+- [⚙ Installation](#-installation)
+    - [Install via OpenUPM](#install-via-openupm)
+    - [Install via UPM (with Package Manager UI)](#install-via-upm-with-package-manager-ui)
+    - [Install via UPM (Manually)](#install-via-upm-manually)
+    - [Install as Embedded Package](#install-as-embedded-package)
+- [🔄 Upgrading from 3.x/4.x to 5.x](#-upgrading-from-3x4x-to-5x)
+  - [Breaking Changes](#breaking-changes)
+- [🚀 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)
+- [🛠 Development Note](#-development-note)
+  - [Compares the Baking mesh approach with the conventional approach](#compares-the-baking-mesh-approach-with-the-conventional-approach)
+    - [Performance test results](#performance-test-results)
+  - [🔍 FAQ: Why Are My UIParticles Not Displayed Correctly?](#-faq-why-are-my-uiparticles-not-displayed-correctly)
+  - [Shader Limitation](#shader-limitation)
+    - [Built-in shaders are not supported](#built-in-shaders-are-not-supported)
+    - [(Unity 2018 or 2019) UV.zw components will be discarded](#unity-2018-or-2019-uvzw-components-will-be-discarded)
+    - [(Unity 2018 or 2019) Custom vertex streams](#unity-2018-or-2019-custom-vertex-streams)
+  - [Overheads](#overheads)
+  - [How to Make a Custom Shader to Support `Mask` and `RectMask2D` Component](#how-to-make-a-custom-shader-to-support-mask-and-rectmask2d-component)
+- [🤝 Contributing](#-contributing)
+  - [Issues](#issues)
+  - [Pull Requests](#pull-requests)
+  - [Support](#support)
+- [License](#license)
+- [Author](#author)
+- [See Also](#see-also)
 
-* Easy to use: The package is ready to use out of the box.
+<br><br>
-* Sort particle effects and other UI by sibling index.
-* No extra Camera, RenderTexture, or Canvas required.
-* Masking options for Mask or RectMask2D.
-* Support for the Trail module.
-* Support for CanvasGroup alpha.
-* No allocations needed to render particles.
-* Compatibility with overlay, camera space, and world space.
-* Support for Universal Render Pipeline (URP) and High Definition Render Pipeline (HDRP).
-* Support for disabling `Enter Play Mode Options > Reload Domain`.
-* Support for changing material property with AnimationClip (AnimatableProperty).  
-  ![AnimatableProperty.gif][AnimatableProperty.gif]
-* [4.0.0+] Support for 8+ materials.
-* [4.0.0+] Correct world space particle position adjustment when changing window size for standalone platforms (Windows,
-  MacOSX, and Linux).
-* [4.0.0+] Adaptive scaling for UI.
-* [4.0.0+] Mesh sharing group to improve performance.  
-  ![MeshSharing.gif][MeshSharing.gif]
-* [4.0.0+] Particle attractor component.  
-  ![ParticleAttractor.gif][ParticleAttractor.gif]
-* [4.1.0+] Relative/Absolute particle position mode.  
-  ![AbsolutePosition.gif][AbsolutePosition.gif]
 
-[AnimatableProperty.gif]: https://user-images.githubusercontent.com/12690315/53286323-2d94a980-37b0-11e9-8afb-c4a207805ff2.gif
+## 📌 Key Features
 
-[MeshSharing.gif]: https://user-images.githubusercontent.com/12690315/174311048-c882df81-6c34-4eba-b0aa-5645457692f1.gif
+* **Easy to use:** The package is ready to use out of the box.
-
+* **Sortable:** Sort particle effects and other UI elements by sibling index.
-[ParticleAttractor.gif]: https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif
+* **Maskable:** Supports `Mask` or `RectMask2D`.
-
+* **No extra components required:** No need for an additional `Camera`, `RenderTexture`, or `Canvas`.
-[AbsolutePosition.gif]: https://user-images.githubusercontent.com/12690315/175751579-5a2357e8-2ecf-4afd-83c8-66e9771bde39.gif
+* **Trail module support:** Fully supports the Trail module.
+* **CanvasGroup alpha support:** Integrates with `CanvasGroup` alpha.
+* **No allocations:** Efficiently renders particles without allocations.
+* **Any canvas render mode support:** Works with overlay, camera space, and world space.
+* **Any Render pipeline support:** Compatible with Universal Render Pipeline (URP) and High Definition Render Pipeline (HDRP).
+* **Disabling domain reload support:** Supports disabling `Enter Play Mode Options > Reload Domain`.
+* **Animatable material properties:** Supports changing material properties with AnimationClip (AnimatableProperty).  
+  ![AnimatableProperty.gif](https://user-images.githubusercontent.com/12690315/53286323-2d94a980-37b0-11e9-8afb-c4a207805ff2.gif)
+* **Multiple materials:** Supports 8+ materials.
+* **Correct positioning:** Adjusts world space particle positions correctly when changing window size for standalone platforms (Windows, MacOSX, and Linux).
+* **Adaptive scaling:** Provides adaptive scaling for UI (AutoScalingMode).
+* **Performance optimization:** Mesh sharing group to improve performance.  
+  <img alt="MeshSharing.gif" src="https://user-images.githubusercontent.com/12690315/174311048-c882df81-6c34-4eba-b0aa-5645457692f1.gif" width="450"/>
+* **Particle attractor:** Includes a particle attractor component.  
+  <img alt="ParticleAttractor.gif" src="https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif" width="450"/>
+* **Emission position mode:** Supports relative/absolute particle emission position modes.  
+  <img alt="AbsolutePosition.gif" src="https://user-images.githubusercontent.com/12690315/175751579-5a2357e8-2ecf-4afd-83c8-66e9771bde39.gif" width="450"/>
+* **Custom view size:** Fixes min/max particle size mismatch.  
+  ![CustomViewSize.gif](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/dd929959-1a37-420b-b13d-e849022b9c9d)
 
 <br><br>
 
@@ -76,76 +101,97 @@ or Canvas.
 
 [JMO]: https://assetstore.unity.com/publishers/1669
 
-
 <br><br>
 
 ## ⚙ Installation
 
-_This package requires Unity 2018.3 or later._
+_This package requires **Unity 2018.3 or later**._
 
 #### Install via OpenUPM
 
-This package is available on [OpenUPM](https://openupm.com) package registry.
+- This package is available on [OpenUPM](https://openupm.com) package registry.
-This is the preferred method of installation, as you can easily receive updates as they're released.
+- This is the preferred method of installation, as you can easily receive updates as they're released.
+- If you have [openupm-cli](https://github.com/openupm/openupm-cli) installed, then run the following command in your project's directory:
+  ```
+  openupm add com.coffee.ui-particle
+  ```
+- To update the package, use Package Manager UI (`Window > Package Manager`) or run the following command with `@{version}`:
+  ```
+  openupm add com.coffee.ui-particle@4.9.0
+  ```
 
-If you have [openupm-cli](https://github.com/openupm/openupm-cli) installed, then run the following command in your
+#### Install via UPM (with Package Manager UI)
-project's directory:
 
-```sh
+- Click `Window > Package Manager` to open Package Manager UI.
-openupm add com.coffee.ui-particle
+- Click `+ > Add package from git URL...` and input the repository URL: `https://github.com/mob-sakai/ParticleEffectForUGUI.git`  
-```
+  ![](https://github.com/user-attachments/assets/f88f47ad-c606-44bd-9e86-ee3f72eac548)
+- To update the package, change suffix `#{version}` to the target version.
+  - e.g. `https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.9.0`
 
-#### Install via UPM (using Git URL)
+#### Install via UPM (Manually)
 
-Navigate to your project's Packages folder and open the `manifest.json` file. Then add this package somewhere in
+- Open the `Packages/manifest.json` file in your project. Then add this package somewhere in the `dependencies` block:
-the `dependencies` block:
+  ```json
-
+  {
-```json
+    "dependencies": {
-{
+      "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git",
-  "dependencies": {
+      ...
-    "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git",
+    }
-    ...
   }
-}
+  ```
-```
 
-To update the package, change suffix `#{version}` to the target version.
+- To update the package, change suffix `#{version}` to the target version.
+  - e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.9.0",`
 
-* e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.6.0",`
+#### Install as Embedded Package
 
-Or, use [UpmGitExtension](https://github.com/mob-sakai/UpmGitExtension) to install and update the package.
+1. Download a source code zip file from [Releases](https://github.com/mob-sakai/ParticleEffectForUGUI.git/releases) and extract it.
+2. Place it in your project's `Packages` directory.  
+   ![](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.
 
 <br><br>
 
-## ⚙ Upgrading from 3.x/4.x to 5.x
+## 🔄 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`.
-- 
+- Add project settings for UIParticle
+  - enableLinearToGamma: Enables LinearToGamma during mesh baking
 
 <br><br>
 
 ## 🚀 Usage
 
-### UIParticle Component
+### Component: UIParticle
 
 `UIParticle` controls the ParticleSystems that are attached to its own game objects and child game objects.
 
-![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/3559df45-63e7-4c4c-9233-f455779efa29)
+![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/1cf5753b-33fc-4cef-91c3-413c515a954f)
 
-- **Maskable**: Does this graphic allow masking.
+- **Maskable**: Does this graphic allow maskable.
-- **Scale**: Scale the rendering. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.
+- **Scale**: Scale the rendering particles. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.
 - **Animatable Properties**: If you want to update material properties (e.g., `_MainTex_ST`, `_Color`) in AnimationClip,
-  use this to mark the changes.
+  use this to mark as animatable.
 - **Mesh Sharing**: Particle simulation results are shared within the same group. A large number of the same effects can
   be displayed with a small load. When the `Random` toggle is enabled, it will be grouped randomly.
+  - **None:** Disable mesh sharing.
+  - **Auto:** Automatically select Primary/Replica.
+  - **Primary:** Provides particle simulation results to the same group.
+  - **Primary Simulator:** Primary, but do not render the particle (simulation only).
+  - **Replica:** Render simulation results provided by the primary.
 - **Position Mode**: Emission position mode.
-    - **Absolute:** Emit from the world position of the `ParticleSystem`.
+  - **Absolute:** The particles will be emitted from the world position.
-    - **Relative:** Emit from the scaled position of the `ParticleSystem`.
+  - **Relative:** The particles will be emitted from the scaled position.
-- **Auto Scaling**: `Transform.lossyScale` (=world scale) will be set to `(1, 1, 1)` on update. It prevents the
+- **Auto Scaling Mode**: How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.
-  root-Canvas scale from affecting the hierarchy-scaled `ParticleSystem`.
+  - **None:** Do nothing.
+  - **Transform:** Transform.lossyScale (=world scale) will be set to (1, 1, 1).
+  - **UIParticle:** UIParticle.scale will be adjusted.
+- **Use Custom View:** Use this if the particles are not displayed correctly due to min/max particle size.
+  - **Custom view size:** Change the bake view size.
 - **Rendering Order**: The ParticleSystem list to be rendered. You can change the order and the materials.
 
 **NOTE:** Press the `Refresh` button to reconstruct the rendering order based on children ParticleSystem's sorting order
@@ -153,7 +199,7 @@ and z-position.
 
 <br><br>
 
-#### Basic Usage
+### Basic Usage
 
 1. Select `GameObject/UI/ParticleSystem` to create UIParticle with a ParticleSystem.
    ![particle](https://user-images.githubusercontent.com/12690315/95007361-cad0e880-0649-11eb-8835-f145d62c5977.png)
@@ -162,7 +208,7 @@ and z-position.
 
 <br>
 
-#### With Your Existing ParticleSystem Prefab
+### Usage with Your Existing ParticleSystem Prefab
 
 1. Select `GameObject/UI/ParticleSystem (Empty)` to create UIParticle.
    ![empty](https://user-images.githubusercontent.com/12690315/95007362-cb697f00-0649-11eb-8a09-29b0a13791e4.png)
@@ -171,7 +217,7 @@ and z-position.
 
 <br>
 
-#### With `Mask` or `RectMask2D` Component
+### Usage with `Mask` or `RectMask2D` Component
 
 If you want to mask particles, set a stencil-supported shader (such as `UI/UIAdditive`) to the material for
 ParticleSystem.
@@ -183,7 +229,7 @@ section.
 
 <br><br>
 
-### Script usage
+### Usage with Script
 
 ```cs
 // Instantiate ParticleSystem prefab with UIParticle on runtime.
@@ -202,14 +248,14 @@ uiParticle.Stop();
 
 <br><br>
 
-### UIParticleAttractor component
+### Component: UIParticleAttractor
 
 `UIParticleAttractor` attracts particles generated by the specified ParticleSystem.
 
-![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/ea6ae0ed-f9a8-437c-8baa-47526303391e)  
+![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/5c20ad73-4b9a-4f38-9cdc-119df5cce077)
 ![](https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif)
 
-- **Particle System**: Attracts particles generated by the specified particle system.
+- **Particle Systems**: Attracts particles generated by the specified ParticleSystems.
 - **Destination Radius**: Once the particle is within the radius, the particle lifetime will become 0, and `OnAttracted`
   will be called.
 - **Delay Rate**: Delay to start attracting. It is a percentage of the particle's start lifetime.
@@ -354,7 +400,7 @@ When improving performance, keep the following in mind:
     - Consider a single material, atlasing the sprites, and using `Sprite` mode in the `Texture Sheet Animation` module
       in the ParticleSystem.
 
-### How to Make a Custom Shader to Support Mask/RectMask2D Component
+### How to Make a Custom Shader to Support `Mask` and `RectMask2D` Component
 
 <details>
 <summary>Shader tips</summary>

Packages/src/Runtime/Internal/Extensions/ComponentExtensions.cs

@@ -50,7 +50,7 @@ namespace Coffee.UIParticleInternal
             var childCount = tr.childCount;
             for (var i = 0; i < childCount; i++)
             {
-                tr.GetChild(i).GetComponentsInChildren(results, depth - 1);
+                tr.GetChild(i).GetComponentsInChildren_Internal(results, depth - 1);
             }
         }
 

Packages/src/Runtime/Internal/ProjectSettings/PreloadedProjectSettings.cs

@@ -13,13 +13,15 @@ namespace Coffee.UIParticleInternal
 {
     public abstract class PreloadedProjectSettings : ScriptableObject
 #if UNITY_EDITOR
-        , IPreprocessBuildWithReport
     {
-        int IOrderedCallback.callbackOrder => 0;
+        private class PreprocessBuildWithReport : IPreprocessBuildWithReport
-
-        void IPreprocessBuildWithReport.OnPreprocessBuild(BuildReport report)
         {
-            Initialize();
+            int IOrderedCallback.callbackOrder => 0;
+
+            void IPreprocessBuildWithReport.OnPreprocessBuild(BuildReport report)
+            {
+                Initialize();
+            }
         }
 
         [InitializeOnLoadMethod]

Packages/src/Runtime/Internal/Utilities/FastAction.cs

@@ -20,6 +20,7 @@ namespace Coffee.UIParticleInternal
         /// </summary>
         public void Add(T rhs)
         {
+            if (rhs == null) return;
             Profiler.BeginSample("(COF)[FastAction] Add Action");
             var node = s_NodePool.Rent();
             node.Value = rhs;
@@ -32,6 +33,7 @@ namespace Coffee.UIParticleInternal
         /// </summary>
         public void Remove(T rhs)
         {
+            if (rhs == null) return;
             Profiler.BeginSample("(COF)[FastAction] Remove Action");
             var node = _delegates.Find(rhs);
             if (node != null)
@@ -63,6 +65,11 @@ namespace Coffee.UIParticleInternal
                 node = node.Next;
             }
         }
+
+        public void Clear()
+        {
+            _delegates.Clear();
+        }
     }
 
     /// <summary>

Packages/src/Runtime/Internal/Utilities/Logging.cs

@@ -141,6 +141,9 @@ namespace Coffee.UIParticleInternal
 
                 switch (tag)
                 {
+                    case string name:
+                        sb.Append(name);
+                        break;
                     case Type type:
                         AppendType(sb, type);
                         break;

Packages/src/Runtime/Internal/Utilities/ObjectRepository.cs

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

Packages/src/Runtime/Internal/Utilities/UIExtraCallbacks.cs

@@ -64,11 +64,12 @@ namespace Coffee.UIParticleInternal
 
 #if UNITY_EDITOR
         [InitializeOnLoadMethod]
-#else
-        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
 #endif
+        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
         private static void InitializeOnLoad()
         {
+            Canvas.willRenderCanvases -= OnAfterCanvasRebuild;
+            s_IsInitializedAfterCanvasRebuild = false;
         }
 
         /// <summary>

Packages/src/Runtime/UIParticle.cs

@@ -58,12 +58,12 @@ namespace Coffee.UIExtensions
         [Obsolete]
         internal bool m_AbsoluteMode;
 
-        [Tooltip("Particle effect scale")]
+        [Tooltip("Scale the rendering particles. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.")]
         [SerializeField]
         private Vector3 m_Scale3D = new Vector3(1, 1, 1);
 
-        [Tooltip("Animatable material properties.\n" +
+        [Tooltip("If you want to update material properties (e.g. _MainTex_ST, _Color) in AnimationClip, " +
-                 "If you want to change the material properties of the ParticleSystem in Animation, enable it.")]
+                 "use this to mark as animatable.")]
         [SerializeField]
         internal AnimatableProperty[] m_AnimatableProperties = new AnimatableProperty[0];
 
@@ -71,12 +71,13 @@ namespace Coffee.UIExtensions
         [SerializeField]
         private List<ParticleSystem> m_Particles = new List<ParticleSystem>();
 
-        [Tooltip("Mesh sharing.\n" +
+        [Tooltip("Particle simulation results are shared within the same group. " +
-                 "None: disable mesh sharing.\n" +
+                 "A large number of the same effects can be displayed with a small load.\n" +
-                 "Auto: automatically select Primary/Replica.\n" +
+                 "None: Disable mesh sharing.\n" +
-                 "Primary: provides particle simulation results to the same group.\n" +
+                 "Auto: Automatically select Primary/Replica.\n" +
+                 "Primary: Provides particle simulation results to the same group.\n" +
                  "Primary Simulator: Primary, but do not render the particle (simulation only).\n" +
-                 "Replica: render simulation results provided by the primary.")]
+                 "Replica: Render simulation results provided by the primary.")]
         [SerializeField]
         private MeshSharing m_MeshSharing = MeshSharing.None;
 
@@ -88,31 +89,44 @@ namespace Coffee.UIExtensions
         [SerializeField]
         private int m_GroupMaxId;
 
-        [Tooltip("Relative: The particles will be emitted from the scaled position of ParticleSystem.\n" +
+        [Tooltip("Emission position mode.\n" +
-                 "Absolute: The particles will be emitted from the world position of ParticleSystem.")]
+                 "Relative: The particles will be emitted from the scaled position.\n" +
+                 "Absolute: The particles will be emitted from the world position.")]
         [SerializeField]
         private PositionMode m_PositionMode = PositionMode.Relative;
 
         [SerializeField]
-        [Tooltip("Prevent the root-Canvas scale from affecting the hierarchy-scaled ParticleSystem.")]
         [Obsolete]
         internal bool m_AutoScaling;
 
         [SerializeField]
-        [Tooltip("Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1)." +
+        [Tooltip(
-                 "UIParticle: UIParticle.scale will be adjusted.")]
+            "How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.\n" +
+            "None: Do nothing.\n" +
+            "Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1).\n" +
+            "UIParticle: UIParticle.scale will be adjusted.")]
         private AutoScalingMode m_AutoScalingMode = AutoScalingMode.Transform;
 
+        [SerializeField]
+        [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]
         private bool m_Maskable = true;
 
         private readonly List<UIParticleRenderer> _renderers = new List<UIParticleRenderer>();
+        private Camera _bakeCamera;
         private Canvas _canvas;
         private int _groupId;
-        private Camera _bakeCamera;
-        private DrivenRectTransformTracker _tracker;
-        private Vector3 _storedScale;
         private bool _isScaleStored;
+        private Vector3 _storedScale;
+        private DrivenRectTransformTracker _tracker;
 
         public RectTransform rectTransform => transform as RectTransform;
 
@@ -148,7 +162,8 @@ namespace Coffee.UIExtensions
         }
 
         /// <summary>
-        /// Mesh sharing.
+        /// Particle simulation results are shared within the same group.
+        /// A large number of the same effects can be displayed with a small load.
         /// None: disable mesh sharing.
         /// Auto: automatically select Primary/Replica.
         /// Primary: provides particle simulation results to the same group.
@@ -191,9 +206,9 @@ namespace Coffee.UIExtensions
         }
 
         /// <summary>
-        /// Particle position mode.
+        /// Emission position mode.
-        /// Relative: The particles will be emitted from the scaled position of the ParticleSystem.
+        /// Relative: The particles will be emitted from the scaled position.
-        /// Absolute: The particles will be emitted from the world position of the ParticleSystem.
+        /// Absolute: The particles will be emitted from the world position.
         /// </summary>
         public PositionMode positionMode
         {
@@ -206,6 +221,7 @@ namespace Coffee.UIExtensions
         /// Relative: The particles will be emitted from the scaled position of the ParticleSystem.
         /// Absolute: The particles will be emitted from the world position of the ParticleSystem.
         /// </summary>
+        [Obsolete("The absoluteMode is now obsolete. Please use the autoScalingMode instead.", false)]
         public bool absoluteMode
         {
             get => m_PositionMode == PositionMode.Absolute;
@@ -223,8 +239,12 @@ namespace Coffee.UIExtensions
         }
 
         /// <summary>
-        /// Auto scaling mode.
+        /// How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.
+        /// <para/>
+        /// None: Do nothing.
+        /// <para/>
         /// Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1).
+        /// <para/>
         /// UIParticle: UIParticle.scale will be adjusted.
         /// </summary>
         public AutoScalingMode autoScalingMode
@@ -243,6 +263,26 @@ namespace Coffee.UIExtensions
             }
         }
 
+        /// <summary>
+        /// Use a custom view.
+        /// Use this if the particles are not displayed correctly due to min/max particle size.
+        /// </summary>
+        public bool useCustomView
+        {
+            get => m_UseCustomView;
+            set => m_UseCustomView = value;
+        }
+
+        /// <summary>
+        /// Custom view size.
+        /// Change the bake view size.
+        /// </summary>
+        public float customViewSize
+        {
+            get => m_CustomViewSize;
+            set => m_CustomViewSize = Mathf.Max(0.1f, value);
+        }
+
         internal bool useMeshSharing => m_MeshSharing != MeshSharing.None;
 
         internal bool isPrimary =>
@@ -288,22 +328,6 @@ namespace Coffee.UIExtensions
 
         public List<ParticleSystem> particles => m_Particles;
 
-        /// <summary>
-        /// Get all base materials to render.
-        /// </summary>
-        public IEnumerable<Material> materials
-        {
-            get
-            {
-                for (var i = 0; i < _renderers.Count; i++)
-                {
-                    var r = _renderers[i];
-                    if (!r || !r.material) continue;
-                    yield return r.material;
-                }
-            }
-        }
-
         /// <summary>
         /// Paused.
         /// </summary>
@@ -462,6 +486,21 @@ namespace Coffee.UIExtensions
             isPaused = true;
         }
 
+        /// <summary>
+        /// Get all base materials to render.
+        /// </summary>
+        public void GetMaterials(List<Material> result)
+        {
+            if (result == null) return;
+
+            for (var i = 0; i < _renderers.Count; i++)
+            {
+                var r = _renderers[i];
+                if (!r || !r.material) continue;
+                result.Add(r.material);
+            }
+        }
+
         /// <summary>
         /// Refresh UIParticle using the ParticleSystem instance.
         /// </summary>
@@ -481,6 +520,9 @@ namespace Coffee.UIExtensions
             for (var i = 0; i < childCount; i++)
             {
                 var go = transform.GetChild(i).gameObject;
+                if (go.TryGetComponent<Camera>(out var cam) && cam == _bakeCamera) continue;
+                if (go.TryGetComponent<UIParticleRenderer>(out var _)) continue;
+
                 go.SetActive(false);
                 if (destroyOldParticles)
                 {
@@ -602,8 +644,12 @@ namespace Coffee.UIExtensions
             }
 
             var currentScale = transform.localScale;
-            _storedScale = currentScale;
+            if (!_isScaleStored)
-            _isScaleStored = true;
+            {
+                _storedScale = currentScale.IsVisible() ? currentScale : Vector3.one;
+                _isScaleStored = true;
+            }
+
             _tracker.Add(this, rectTransform, DrivenTransformProperties.Scale);
             var newScale = parentScale.Inverse();
             if (currentScale != newScale)
@@ -671,7 +717,16 @@ namespace Coffee.UIExtensions
         private Camera GetBakeCamera()
         {
             if (!canvas) return Camera.main;
-            if (_bakeCamera) return _bakeCamera;
+            if (!useCustomView && canvas.renderMode != RenderMode.ScreenSpaceOverlay && canvas.rootCanvas.worldCamera)
+            {
+                return canvas.rootCanvas.worldCamera;
+            }
+
+            if (_bakeCamera)
+            {
+                _bakeCamera.orthographicSize = useCustomView ? customViewSize : 10;
+                return _bakeCamera;
+            }
 
             // Find existing baking camera.
             var childCount = transform.childCount;
@@ -688,11 +743,7 @@ namespace Coffee.UIExtensions
             // Create baking camera.
             if (!_bakeCamera)
             {
-                var go = new GameObject("[generated] UIParticle BakingCamera")
+                var go = new GameObject("[generated] UIParticle BakingCamera");
-                {
-                    // hideFlags = HideFlags.HideAndDontSave
-                    hideFlags = HideFlags.DontSave
-                };
                 go.SetActive(false);
                 go.transform.SetParent(transform, false);
                 _bakeCamera = go.AddComponent<Camera>();
@@ -700,7 +751,7 @@ namespace Coffee.UIExtensions
 
             // Setup baking camera.
             _bakeCamera.enabled = false;
-            _bakeCamera.orthographicSize = 1000;
+            _bakeCamera.orthographicSize = useCustomView ? customViewSize : 10;
             _bakeCamera.transform.SetPositionAndRotation(new Vector3(0, 0, -1000), Quaternion.identity);
             _bakeCamera.orthographic = true;
             _bakeCamera.farClipPlane = 2000f;
@@ -711,6 +762,9 @@ namespace Coffee.UIExtensions
             _bakeCamera.renderingPath = RenderingPath.Forward;
             _bakeCamera.useOcclusionCulling = false;
 
+            _bakeCamera.gameObject.SetActive(false);
+            _bakeCamera.gameObject.hideFlags = HideFlags.HideAndDontSave;
+
             return _bakeCamera;
         }
     }

Packages/src/Runtime/UIParticleAttractor.cs

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

Packages/src/Runtime/UIParticleRenderer.cs

@@ -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;
@@ -38,7 +38,6 @@ namespace Coffee.UIExtensions
         private float _prevCanvasScale;
         private Vector3 _prevPsPos;
         private Vector3 _prevScale;
-        private bool _isPrevStored;
         private Vector2Int _prevScreenSize;
         private bool _preWarm;
         private ParticleSystemRenderer _renderer;
@@ -445,22 +444,25 @@ namespace Coffee.UIExtensions
 
             // Get grouped renderers.
             Profiler.BeginSample("[UIParticleRenderer] Set Mesh");
-            s_Renderers.Clear();
+            var renderers = ListPool<UIParticleRenderer>.Rent();
             if (_parent.useMeshSharing)
             {
-                UIParticleUpdater.GetGroupedRenderers(_parent.groupId, _index, s_Renderers);
+                UIParticleUpdater.GetGroupedRenderers(_parent.groupId, _index, renderers);
             }
 
-            for (var i = 0; i < s_Renderers.Count; i++)
+            for (var i = 0; i < renderers.Count; i++)
             {
-                if (s_Renderers[i] == this) continue;
+                var r = renderers[i];
+                if (r == this) continue;
 
-                s_Renderers[i].canvasRenderer.SetMesh(workerMesh);
+                r.canvasRenderer.SetMesh(workerMesh);
-                s_Renderers[i]._lastBounds = _lastBounds;
+                r._lastBounds = _lastBounds;
-                s_Renderers[i].canvasRenderer.materialCount = 1;
+                r.canvasRenderer.materialCount = 1;
-                s_Renderers[i].canvasRenderer.SetMaterial(materialForRendering, 0);
+                r.canvasRenderer.SetMaterial(materialForRendering, 0);
             }
 
+            ListPool<UIParticleRenderer>.Return(ref renderers);
+
             if (_parent.canRender)
             {
                 canvasRenderer.SetMesh(workerMesh);
@@ -471,8 +473,6 @@ namespace Coffee.UIExtensions
             }
 
             Profiler.EndSample();
-
-            s_Renderers.Clear();
         }
 
         public override void SetMaterialDirty()

Packages/src/Samples~/Demo/Scripts/UIParticle_Demo.cs

@@ -51,7 +51,11 @@ namespace Coffee.UIExtensions.Demo
 
         public void EnableAnimations(bool flag)
         {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var animator in FindObjectsByType<Animator>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
             foreach (var animator in FindObjectsOfType<Animator>())
+#endif
             {
                 animator.enabled = flag;
             }
@@ -79,7 +83,11 @@ namespace Coffee.UIExtensions.Demo
 
         public void UIParticle_Scale(float scale)
         {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var uip in FindObjectsByType<UIParticle>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
             foreach (var uip in FindObjectsOfType<UIParticle>())
+#endif
             {
                 uip.scale = scale;
             }
@@ -87,7 +95,11 @@ namespace Coffee.UIExtensions.Demo
 
         public void ParticleSystem_WorldSpaseSimulation(bool flag)
         {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var p in FindObjectsByType<ParticleSystem>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
             foreach (var p in FindObjectsOfType<ParticleSystem>())
+#endif
             {
                 var main = p.main;
                 main.simulationSpace = flag
@@ -123,7 +135,11 @@ namespace Coffee.UIExtensions.Demo
 
         public void ParticleSystem_SetScale(float scale)
         {
+#if UNITY_2023_1_OR_NEWER
+            foreach (var ps in FindObjectsByType<ParticleSystem>(FindObjectsInactive.Include, FindObjectsSortMode.None))
+#else
             foreach (var ps in FindObjectsOfType<ParticleSystem>())
+#endif
             {
                 ps.transform.localScale = new Vector3(scale, scale, scale);
             }

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

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

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

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

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

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

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

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

Packages/src/package.json

@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This package provides a component to render particle effects for uGUI.\nThe particle rendering is maskable and sortable, without the need for an extra Camera, RenderTexture, or Canvas.",
-  "version": "5.0.0-preview.2",
+  "version": "4.9.0",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {

ProjectSettings/ProjectSettings.asset

@@ -124,7 +124,7 @@ PlayerSettings:
   bundleVersion: 1.0
   preloadedAssets:
   - {fileID: 11400000, guid: 86087a0847f384b538391745dad4565c, type: 2}
-  - {fileID: 11400000, guid: be3e05903ef7041d39b3ef8ecdd47f08, type: 2}
+  - {fileID: 11400000, guid: e8e7744b163af4869b07b8f192c810ed, type: 2}
   metroInputSource: 0
   wsaTransparentSwapchain: 0
   m_HolographicPauseOnTrackingLoss: 1
@@ -520,7 +520,7 @@ PlayerSettings:
   webGLTemplate: APPLICATION:Default
   webGLAnalyzeBuildSize: 0
   webGLUseEmbeddedResources: 0
-  webGLCompressionFormat: 1
+  webGLCompressionFormat: 2
   webGLLinkerTarget: 0
   webGLThreadsSupport: 0
   scriptingDefineSymbols: