chore(release): 5.0.0-preview.2 [skip ci]

# [5.0.0-preview.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v5.0.0-preview.1...v5.0.0-preview.2) (2024-06-20)

### Bug Fixes

* 'Resource ID out of range in GetResource' error in overlay rendering mode ([ff78b6f](ff78b6fe32)), closes [#308](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/308)
* `UIParticle.transform.localScale` does not scale particles ([491ee7b](491ee7b0c3)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
* despite not using the size module, particles become smaller based on their z position ([c96ddf2](c96ddf293e)), closes [#316](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/316)
* the ParticleSystem's localPosition drifts at certain scales due to floating-point precision issues ([a9c2b19](a9c2b19edf)), closes [#299](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/299) [#312](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/312)
* UIParticle is scaled by canvas size even when `AutoScalingMode.None` and `ScalingMode.Local` ([63b24d8](63b24d8a8b)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
* UIParticle is scaled incorrectly with nested canvases ([c95d8c6](c95d8c6b17)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)

### Features

* remove overlay window (editor) ([fc3fbdd](fc3fbdd230))
* reset previous position on start play for world space simulation ([e741584](e741584507)), closes [#303](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/303)
* restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` ([dfb94f4](dfb94f4bad))

.editorconfig

@@ -25,7 +25,6 @@ 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
 
@@ -87,9 +86,6 @@ 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
@@ -138,7 +134,7 @@ dotnet_naming_style._camel_case.capitalization = camel_case
 
 # Code style defaults
 dotnet_sort_system_directives_first = true
-csharp_preserve_single_line_statements = false
+csharp_preserve_single_line_statements = false:none
 csharp_prefer_static_local_function = true:suggestion
 csharp_prefer_simple_using_statement = false:none
 csharp_style_prefer_switch_expression = true:suggestion
@@ -190,7 +186,7 @@ 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 = false
+csharp_space_around_declaration_statements = do_not_ignore
 csharp_space_before_colon_in_inheritance_clause = true
 csharp_space_before_comma = false
 csharp_space_before_dot = false

.github/CODEOWNERS

@@ -1,6 +0,0 @@
-# This is a comment.
-# Each line is a file pattern followed by one or more owners.
-# https://docs.github.com/ja/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
-
-# Default owners
-* @mob-sakai

.github/FUNDING.yml

@@ -1,12 +0,0 @@
-# These are supported funding model platforms
-
-github: mob-sakai # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
-patreon: mob_sakai # Replace with a single Patreon username
-open_collective: # Replace with a single Open Collective username
-ko_fi: # Replace with a single Ko-fi username
-tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
-community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
-liberapay: # Replace with a single Liberapay username
-issuehunt: # Replace with a single IssueHunt username
-otechie: # Replace with a single Otechie username
-custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,35 +0,0 @@
----
-name: Bug report
-about: Create a report to help us improve
-title: ''
-labels: bug
-assignees: mob-sakai
-
----
-
-NOTE: Your issue may already be reported! Please search on the [issue tracker](../) before creating one.
-
-**Describe the bug**
-A clear and concise description of what the bug is.
-
-**To Reproduce**
-Steps to reproduce the behavior:
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
-
-**Expected behavior**
-A clear and concise description of what you expected to happen.
-
-**Screenshots**
-If applicable, add screenshots to help explain your problem.
-
-**Environment (please complete the following information):**
- - Version [e.g. 1.0.0]
- - Platform: [e.g. Editor(Windows/Mac), Standalone(Windows/Mac), iOS, Android, WebGL]
- - Unity version: [e.g. 2018.2.8f1]
- - Build options: [e.g. IL2CPP, .Net 4.x, LWRP]
-
-**Additional context**
-Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,22 +0,0 @@
----
-name: Feature request
-about: Suggest an idea for this project
-title: ''
-labels: enhancement
-assignees: mob-sakai
-
----
-
-NOTE: Your issue may already be reported! Please search on the [issue tracker](../) before creating one.
-
-**Is your feature request related to a problem? Please describe.**
-A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
-
-**Describe the solution you'd like**
-A clear and concise description of what you want to happen.
-
-**Describe alternatives you've considered**
-A clear and concise description of any alternative solutions or features you've considered.
-
-**Additional context**
-Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/question.md

@@ -1,16 +0,0 @@
----
-name: Question
-about: Ask a question about this project
-title: ''
-labels: question
-assignees: mob-sakai
-
----
-
-NOTE: Your issue may already be reported! Please search on the [issue tracker](../) before creating one.
-
-**Describe what help do you need**
-A description of the question.
-
-**Additional context**
-Add any other context or screenshots about the question here.

.github/pull_request_template.md

@@ -1,37 +0,0 @@
-
-# Pull Request Template
-
-## Description
-
-- Please include a summary of the change and which issue is fixed.
-- Please also include relevant motivation and context.
-- List any dependencies that are required for this change.
-
-Fixes #{issue_number}
-
-## Type of change
-
-Please write the commit message in the format corresponding to the change type.
-Please see [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) for more information.
-
-- [ ] Bug fix (non-breaking change which fixes an issue)  
-- [ ] New feature (non-breaking change which adds functionality)  
-- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
-- [ ] Update documentations
-- [ ] Others (refactoring, style changes, etc.)
-
-## Test environment
-
-- Platform: [e.g. Editor(Windows/Mac), Standalone(Windows/Mac), iOS, Android, WebGL]
-- Unity version: [e.g. 2022.2.0f1]
-- Build options: [e.g. IL2CPP, .Net 4.x, URP/HDRP]
-
-## Checklist
-
-- [ ] This pull request is for merging into the `develop` branch
-- [ ] My code follows the style guidelines of this project
-- [ ] I have performed a self-review of my own code
-- [ ] I have commented my code, particularly in hard-to-understand areas
-- [ ] I have made corresponding changes to the documentation
-- [ ] My changes generate no new warnings
-- [ ] I have checked my code and corrected any misspellings

.github/workflows/deploy.yml

@@ -1,28 +0,0 @@
-name: 🚀 Deploy with Zip
-
-on:
-  workflow_dispatch:
-    inputs:
-      zip:
-        description: "The url to the zip file"
-        required: true
-
-jobs:
-  deploy:
-    name: 🚀 Deploy
-    runs-on: ubuntu-latest
-    permissions:
-      pages: write
-      id-token: write
-    steps:
-      - name: 📦 Download zip file To '_site'
-        run: |
-          curl -L ${{ github.event.inputs.zip }} -o _site.zip
-          unzip _site.zip -d _site
-          find _site -name __MACOSX | xargs rm -rf
-
-      - name: 📦 Upload '_site'
-        uses: actions/upload-pages-artifact@v3
-
-      - name: 🚀 Deploy To GitHub Pages
-        uses: actions/deploy-pages@v4

.github/workflows/release.yml

@@ -1,13 +1,12 @@
 name: 🔖 Release
-run-name: 🔖 Release (${{ github.ref_name }})
 
 on:
   workflow_dispatch:
   push:
     branches:
-      - preview
-      - main
-      - v*.x
+      - release
+      - release-preview
+      - release-v4
     tags-ignore:
       - "**"
 
@@ -23,6 +22,9 @@ jobs:
       channel: ${{ steps.release.outputs.new_release_channel }}
       released: ${{ steps.release.outputs.new_release_published }}
       tag: ${{ steps.release.outputs.new_release_git_tag }}
+      version: ${{ steps.release.outputs.new_release_version }}
+      merge_to: ${{ steps.summary.outputs.merge_to }}
+      split_to: ${{ steps.summary.outputs.split_to }}
     steps:
       - name: 🚚 Checkout (${{ github.ref_name }})
         uses: actions/checkout@v4
@@ -36,9 +38,66 @@ jobs:
             @semantic-release/changelog
             @semantic-release/git
         env:
-          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
+          GITHUB_TOKEN: ${{ github.token }}
 
-      - run: |
+      - id: summary
+        run: |
           echo "🔖 New release published: '${{ steps.release.outputs.new_release_published }}'" | tee -a $GITHUB_STEP_SUMMARY
+          echo "🔖 New release version: '${{ steps.release.outputs.new_release_version }}'" | tee -a $GITHUB_STEP_SUMMARY
           echo "🔖 New release channel: '${{ steps.release.outputs.new_release_channel }}'" | tee -a $GITHUB_STEP_SUMMARY
           echo "🔖 New release git tag: '${{ steps.release.outputs.new_release_git_tag }}'" | tee -a $GITHUB_STEP_SUMMARY
+          
+          if [ '${{ steps.release.outputs.new_release_published }}' = 'false' ]; then
+            echo "No new release published." | tee -a $GITHUB_STEP_SUMMARY
+          elif [ '${{ github.ref_name }}' = 'release' ]; then
+            echo "merge_to=develop" | tee -a $GITHUB_OUTPUT
+            echo "split_to=main" | tee -a $GITHUB_OUTPUT
+          elif [ '${{ github.ref_name }}' = 'release-preview' ]; then
+            echo "merge_to=develop-preview" | tee -a $GITHUB_OUTPUT
+            echo "split_to=preview" | tee -a $GITHUB_OUTPUT
+          elif [ '${{ github.ref_name }}' = 'release-4.x' ]; then
+            echo "merge_to=develop-4.x" | tee -a $GITHUB_OUTPUT
+            echo "split_to=4.x" | tee -a $GITHUB_OUTPUT
+          fi
+
+  merge-to:
+    if: needs.release.outputs.merge_to != ''
+    needs: release
+    name: 🔀 Merge to ${{ needs.release.outputs.merge_to }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: 🚚 Checkout (${{ needs.release.outputs.merge_to }})
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ needs.release.outputs.merge_to }}
+          fetch-depth: 0
+      - name: 🔀 Merge '${{ needs.release.outputs.tag }}' into '${{ needs.release.outputs.merge_to }}'
+        run: |
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
+          
+          git merge ${{ needs.release.outputs.tag }}
+          git push origin ${{ needs.release.outputs.merge_to }}
+
+  split-to:
+    if: needs.release.outputs.split_to != ''
+    needs: release
+    name: 🔀 Split package to ${{ needs.release.outputs.split_to }}
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    steps:
+      - name: 🚚 Checkout (${{ needs.release.outputs.tag }})
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ needs.release.outputs.tag }}
+          fetch-depth: 0
+      - name: 🔀 Split subtree 'Packages/src' to '${{ needs.release.outputs.split_to }}'
+        run: |
+          split_to=${{ needs.release.outputs.split_to }}
+          git branch $split_to origin/$split_to
+          git subtree split --prefix=Packages/src --branch $split_to
+          git tag ${{ needs.release.outputs.version }} $split_to
+          git push origin ${{ needs.release.outputs.version }} $split_to:$split_to

.github/workflows/test.yml

@@ -3,36 +3,28 @@
 #   UNITY_EMAIL: Unity user email to login
 #   UNITY_PASSWORD: Unity user password to login
 name: 🧪 Test
-run-name: 🧪 Test (${{ github.event.pull_request.title || github.ref_name }})
 
 env:
   # MINIMUM_VERSION: The minimum version of Unity.
   MINIMUM_VERSION: 2019.4
   # EXCLUDE_FILTER: The excluded versions of Unity.
-  EXCLUDE_FILTER: "(2020.2.0|2021.1|2023.3)"
+  EXCLUDE_FILTER: '(2020.2.0)'
 
 on:
   workflow_dispatch:
-    inputs:
-      usePeriodVersions:
-        description: "Use the period versions (.0f1, .10f1, 20f1, ...)."
-        required: false
-        default: "true"
   push:
     branches:
       - develop
       - develop-preview
+      - develop-4.x
     tags:
       - "!*"
     paths-ignore:
-      - "**.md"
-  pull_request_target:
+      - "*.md"
+  pull_request:
     types:
       - opened
-      - reopened
       - synchronize
-    paths-ignore:
-      - "**.md"
 
 jobs:
   setup:
@@ -45,12 +37,9 @@ jobs:
         id: setup
         run: |
           echo "==== Target Unity Versions ===="
-          LATEST_VERSIONS=`npx unity-changeset@latest list --versions --latest-patch --min ${MINIMUM_VERSION} --json --all`
-          if [ "${{ inputs.usePeriodVersions }}" = "true" ]; then
-            ADDITIONAL_VERSIONS=`npx unity-changeset list --versions --grep '0f' --min ${MINIMUM_VERSION} --json`
-          else
-            ADDITIONAL_VERSIONS=[]
-          fi
+          LATEST_VERSIONS=`npx unity-changeset list --versions --latest-patch --min ${MINIMUM_VERSION} --json --all`
+          # ADDITIONAL_VERSIONS=`npx unity-changeset list --versions --grep '0f' --min ${MINIMUM_VERSION} --json`
+          ADDITIONAL_VERSIONS=[]
 
           VERSIONS=`echo "[${LATEST_VERSIONS}, ${ADDITIONAL_VERSIONS}]" \
             | jq -c '[ flatten | sort | unique | .[] | select( test("${{ env.EXCLUDE_FILTER }}") | not ) ]'`
@@ -59,44 +48,33 @@ jobs:
   test:
     name: 🧪 Run tests
     runs-on: ubuntu-latest
+    env:
+      UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}
+      UNITY_PASSWORD: ${{ secrets.UNITY_PASSWORD }}
+      UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
     permissions:
       checks: write
       contents: read
     needs: setup
     strategy:
       fail-fast: false
-      max-parallel: 6
+      max-parallel: 4
       matrix:
         unityVersion: ${{ fromJson(needs.setup.outputs.unityVersions) }}
     steps:
-      - name: 🚚 Checkout ($${{ github.ref }})
-        if: github.event_name == 'push'
+      - name: 🚚 Checkout
         uses: actions/checkout@v4
 
-      - name: 🚚 Checkout pull request (pull_request_target)
-        if: github.event_name == 'pull_request_target'
-        uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-          fetch-depth: 0
-
-      - name: 🚚 Marge pull request (pull_request_target)
-        if: github.event_name == 'pull_request_target'
-        run: |
-          git config user.name "GitHub Actions"
-          git config user.email "actions@github.com"
-          git merge origin/${{ github.event.pull_request.base.ref }} --no-edit
-
       - name: 📥 Cache library
         uses: actions/cache@v4
         with:
           path: Library
-          key: Library-${{ matrix.unityVersion }}-${{ github.event.pull_request.head.sha || github.sha }}
+          key: Library-${{ matrix.unityVersion }}-${{ github.sha }}
           restore-keys: |
             Library-${{ matrix.unityVersion }}-
             Library-
 
-      - name: 🛠️ Build Unity Project (Test)
+      - name: 🛠️ Build Unity Project
         uses: game-ci/unity-builder@v4
         timeout-minutes: 45
         with:
@@ -104,10 +82,6 @@ jobs:
           targetPlatform: StandaloneLinux64
           allowDirtyBuild: true
           customParameters: -nographics
-        env:
-          UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}
-          UNITY_PASSWORD: ${{ secrets.UNITY_PASSWORD }}
-          UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
 
       - name: 🧪 Run tests
         uses: game-ci/unity-test-runner@v4
@@ -118,7 +92,4 @@ jobs:
           customParameters: -nographics
           checkName: ${{ matrix.unityVersion }} Test Results
           githubToken: ${{ github.token }}
-        env:
-          UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}
-          UNITY_PASSWORD: ${{ secrets.UNITY_PASSWORD }}
-          UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
+          coverageOptions: "dontClear;generateHtmlReport;generateBadgeReport;pathFilters:+**/Packages/src/**;assemblyFilters:+<packages>,-*.Editor,-*.Test"

Assets/Demo/Cartoon FX & War FX Demo/CFXRF Demo.unity.meta

@@ -1,4 +0,0 @@
-fileFormatVersion: 2
-guid: e34a092899a9547189add96707de1b5a
-DefaultImporter:
-  userData: 

Assets/Demo/Cartoon FX & War FX Demo/CFX_Demo_With_UIParticle.cs

@@ -80,11 +80,7 @@ namespace Coffee.UIExtensions.Demo
                 .SelectMany(x => x.GetTypes())
                 .FirstOrDefault(x => x.Name == typeName);
 
-#if UNITY_2023_2_OR_NEWER
-            return type == null ? null : FindFirstObjectByType(type);
-#else
             return type == null ? null : FindObjectOfType(type);
-#endif
         }
 
         public void SetCanvasWidth(int width)

Assets/Demo/CustomView/UI-Cloud.mat

@@ -1,42 +0,0 @@
-%YAML 1.1
-%TAG !u! tag:unity3d.com,2011:
---- !u!21 &2100000
-Material:
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-  m_ObjectHideFlags: 0
-  m_CorrespondingSourceObject: {fileID: 0}
-  m_PrefabInstance: {fileID: 0}
-  m_PrefabAsset: {fileID: 0}
-  m_Name: UI-Cloud
-  m_Shader: {fileID: 4800000, guid: 6b5e4f608f0684d10a4673a7e1cee0f3, type: 3}
-  m_ValidKeywords: []
-  m_InvalidKeywords:
-  - _COLORMODE_MULTIPRY
-  m_LightmapFlags: 4
-  m_EnableInstancingVariants: 0
-  m_DoubleSidedGI: 0
-  m_CustomRenderQueue: -1
-  stringTagMap: {}
-  disabledShaderPasses: []
-  m_SavedProperties:
-    serializedVersion: 3
-    m_TexEnvs:
-    - _MainTex:
-        m_Texture: {fileID: 2800000, guid: 48901c5d75f8c456aa8f4cd3a6b0160e, type: 3}
-        m_Scale: {x: 1, y: 1}
-        m_Offset: {x: 0, y: 0}
-    m_Ints: []
-    m_Floats:
-    - _ColorMask: 15
-    - _ColorMode: 0
-    - _DstBlend: 10
-    - _SrcBlend: 1
-    - _Stencil: 0
-    - _StencilComp: 8
-    - _StencilOp: 0
-    - _StencilReadMask: 255
-    - _StencilWriteMask: 255
-    - _UseUIAlphaClip: 0
-    m_Colors:
-    - _Color: {r: 1, g: 1, b: 1, a: 1}
-  m_BuildTextureStacks: []

Assets/Demo/CustomView/UI-Cloud.png.meta

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-TextureImporter:
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-  externalObjects: {}
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-    mipMapFadeDistanceEnd: 3
-  bumpmap:
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-    externalNormalMap: 0
-    heightScale: 0.25
-    normalMapFilter: 0
-  isReadable: 0
-  streamingMipmaps: 0
-  streamingMipmapsPriority: 0
-  vTOnly: 0
-  ignoreMasterTextureLimit: 0
-  grayScaleToAlpha: 0
-  generateCubemap: 6
-  cubemapConvolution: 0
-  seamlessCubemap: 0
-  textureFormat: 1
-  maxTextureSize: 2048
-  textureSettings:
-    serializedVersion: 2
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-    mipBias: 0
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-  spriteBorder: {x: 0, y: 0, z: 0, w: 0}
-  spriteGenerateFallbackPhysicsShape: 1
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Assets/Demo/CustomView/UI-Color.shader

@@ -1,177 +0,0 @@
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-{
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-        _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"
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-        }
-
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-        {
-            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

@@ -1,4 +1,3 @@
-using Coffee.UIParticleInternal;
 using UnityEngine;
 using UnityEngine.Serialization;
 
@@ -47,7 +46,7 @@ namespace Coffee.UIExtensions.Demo
 
             if (!flag)
             {
-                foreach (var ps in Misc.FindObjectsOfType<ParticleSystem>())
+                foreach (var ps in FindObjectsOfType<ParticleSystem>())
                 {
                     ps.Play(false);
                 }
@@ -76,7 +75,7 @@ namespace Coffee.UIExtensions.Demo
 
         public void ParticleSystem_SetScale(float scale)
         {
-            foreach (var ps in Misc.FindObjectsOfType<ParticleSystem>())
+            foreach (var ps in FindObjectsOfType<ParticleSystem>())
             {
                 ps.transform.localScale = new Vector3(scale, scale, scale);
             }

Assets/ProjectSettings/NanoMonitor.asset

@@ -14,16 +14,15 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   m_NanoMonitorEnabled: 1
   m_BootSceneNameRegex: .*
-  m_DevelopmentBuildOnly: 0
+  m_DevelopmentBuildOnly: 1
   m_EnabledInEditor: 1
   m_AlwaysIncludeAssembly: 1
   m_InstantiateOnLoad: 1
-  m_Prefab: {fileID: 4567906826058368312, guid: 7cebff2d255b9433cbe23b243c193329,
+  m_Prefab: {fileID: 7211429669315726685, guid: b73940fc30a2f4eb9a73783e9c1f8da6,
     type: 3}
+  m_Opened: 1
   m_Interval: 0.5
-  m_Anchor: 0
-  m_Width: 750
-  m_HelpUrl: https://github.com/mob-sakai/ParticleEffectForUGUI
+  m_Anchor: 1
   m_CustomMonitorItems:
   - m_Format: Screen:{0}x{1}
     m_Arg0:
@@ -32,10 +31,3 @@ MonoBehaviour:
       m_Path: UnityEngine.Screen, UnityEngine.CoreModule;height
     m_Arg2:
       m_Path: 
-  - m_Format: UIParticles:{0} Materials:{1}
-    m_Arg0:
-      m_Path: Coffee.UIExtensions.UIParticleUpdater, Coffee.UIParticle;uiParticleCount
-    m_Arg1:
-      m_Path: Coffee.UIParticleInternal.MaterialRepository, Coffee.UIParticle;count
-    m_Arg2:
-      m_Path: 

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Assets/ProjectSettings/SimpleSceneNavigator.asset

@@ -0,0 +1,20 @@
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-guid: bce3318d54bae4f99a2cb35bd8c456b0
+guid: e8e7744b163af4869b07b8f192c810ed
 NativeFormatImporter:
   externalObjects: {}
-  mainObjectFileID: 2100000
+  mainObjectFileID: 11400000
   userData: 
   assetBundleName: 
   assetBundleVariant: 

Packages/manifest.json

@@ -1,9 +1,10 @@
 {
   "dependencies": {
+    "com.unity.ide.rider": "3.0.27",
     "com.coffee.development": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/Development",
-    "com.coffee.minimal-resource": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/MinimalResource",
     "com.coffee.nano-monitor": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/NanoMonitor",
-    "com.unity.ide.rider": "3.0.31",
+    "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",
     "com.unity.modules.physics": "1.0.0"

Packages/packages-lock.json

@@ -5,14 +5,7 @@
       "depth": 0,
       "source": "git",
       "dependencies": {},
-      "hash": "3c280f1a8f4db5038b881ff07f270efd9638fa31"
-    },
-    "com.coffee.minimal-resource": {
-      "version": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/MinimalResource",
-      "depth": 0,
-      "source": "git",
-      "dependencies": {},
-      "hash": "3c280f1a8f4db5038b881ff07f270efd9638fa31"
+      "hash": "4a57c0a498ba7ce667290ec39510b1474030471a"
     },
     "com.coffee.nano-monitor": {
       "version": "https://github.com/mob-sakai/Coffee.Internal.git?path=Packages/NanoMonitor",
@@ -21,7 +14,23 @@
       "dependencies": {
         "com.unity.ugui": "1.0.0"
       },
-      "hash": "3c280f1a8f4db5038b881ff07f270efd9638fa31"
+      "hash": "4a57c0a498ba7ce667290ec39510b1474030471a"
+    },
+    "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",
+      "depth": 0,
+      "source": "git",
+      "dependencies": {},
+      "hash": "01464178eec1e4dbe741c11c9baeb94a151c99ee"
     },
     "com.coffee.ui-particle": {
       "version": "file:src",
@@ -40,7 +49,7 @@
       "url": "https://packages.unity.com"
     },
     "com.unity.ide.rider": {
-      "version": "3.0.31",
+      "version": "3.0.27",
       "depth": 0,
       "source": "registry",
       "dependencies": {

Packages/src/.releaserc.json

@@ -1,13 +1,12 @@
 {
   "branches": [
-    "main",
-    "[0-9]+.x",
+    "release",
+    "release-4.x",
     {
-      "name": "preview",
-      "prerelease": true
+      "name": "release-preview",
+      "prerelease": "preview"
     }
   ],
-  "tagFormat": "${version}",
   "plugins": [
     "@semantic-release/commit-analyzer",
     "@semantic-release/release-notes-generator",

Packages/src/CHANGELOG.md

@@ -1,172 +1,36 @@
-# [5.0.0-preview.16](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/5.0.0-preview.15...5.0.0-preview.16) (2025-03-15)
+# [5.0.0-preview.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v5.0.0-preview.1...v5.0.0-preview.2) (2024-06-20)
 
 
 ### Bug Fixes
 
-* IL2CPP build fails on older versions of Unity ([0da6525](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/0da652520cd165b43de7404c0b0ab1fbcf9349d1))
-* NRE on enable ([0cff50e](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/0cff50ef696aa53fb7c46a9a737b7cf3a05b7b9b)), closes [#359](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/359)
-
-# [5.0.0-preview.15](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/5.0.0-preview.14...5.0.0-preview.15) (2025-02-21)
-
-
-### Bug Fixes
-
-* component icons will no longer be displayed in the scene view ([6dfbdae](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/6dfbdae38d3822ab9c2c6f0e4ca1ca32ee98a239))
-* editor crashed on exit play mode (editor, windows) ([47ee45c](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/47ee45cbbe651a8f87ca2b8a3948f8b88db8211e)), closes [#351](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/351)
+* 'Resource ID out of range in GetResource' error in overlay rendering mode ([ff78b6f](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/ff78b6fe32ceed8ddad50e63dcb7a202eab95266)), closes [#308](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/308)
+* `UIParticle.transform.localScale` does not scale particles ([491ee7b](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/491ee7b0c3e528e1e577ae5ff2588d7c3bd8ecdb)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
+* despite not using the size module, particles become smaller based on their z position ([c96ddf2](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/c96ddf293e855f7ebccaaaf3b112092955545e61)), closes [#316](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/316)
+* the ParticleSystem's localPosition drifts at certain scales due to floating-point precision issues ([a9c2b19](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/a9c2b19edf00e1c86c928ef23405906952ede852)), closes [#299](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/299) [#312](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/312)
+* UIParticle is scaled by canvas size even when `AutoScalingMode.None` and `ScalingMode.Local` ([63b24d8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/63b24d8a8b478b3165733ece3eec524e88b28855)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
+* UIParticle is scaled incorrectly with nested canvases ([c95d8c6](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/c95d8c6b1774396ff252d13121ad32a3cab0fe5c)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
 
 
 ### Features
 
-* add 'TimeScaleMultiplier' option ([925af0b](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/925af0b6046f65f23a778f67cefa8ff9cbedb513))
+* remove overlay window (editor) ([fc3fbdd](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/fc3fbdd230595ad3471875ec6fec384a3dad0d17))
+* reset previous position on start play for world space simulation ([e741584](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/e7415845074143abae23e3ae7eedc767a01d020d)), closes [#303](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/303)
+* restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` ([dfb94f4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/dfb94f4badfb3035a4374579c53293460b4fd946))
 
-# [5.0.0-preview.14](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/5.0.0-preview.13...5.0.0-preview.14) (2025-01-03)
-
-
-### Bug Fixes
-
-* sub-emitter particles may not render correctly in certain scenarios ([8276684](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/8276684c3b1646f0490ed64557547ba15281664a)), closes [#348](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/348)
-* sub-emitter's `inherit velocity` module doubles at runtime ([67de3d1](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/67de3d1bd3e16dc9b564625cb990c53d75769506)), closes [#349](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/349)
-
-# [5.0.0-preview.13](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/5.0.0-preview.12...5.0.0-preview.13) (2025-01-03)
+# [5.0.0-preview.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.6...v5.0.0-preview.1) (2024-05-23)
 
 
 ### Features
 
-* change the default value of `UIParticle.scale` from `10` to `1` ([9955eef](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/9955eefdc22cf565502f85c87cd2efd3a25fbe50))
-* UIParticle no longer inherits from MaskableGraphic ([c09bfb8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/c09bfb81abc9179bf5fc49d29eaf7fc4ed01a4dc))
+* add project settings for UIParticle ([b6e6185](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/b6e6185c521fef0f118f61cfdfdac07b87555c01))
+* change the default value of `UIParticle.scale` from `10` to `1` ([1b3c0f9](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/1b3c0f92dcc6a1974d1ea074821e5264200e9711)), closes [#310](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/310)
+* UIParticle no longer inherits from MaskableGraphic ([b6d921b](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/b6d921b3e47f749b5028d22b0e89b6eb3a1af7de))
 
 
 ### BREAKING CHANGES
 
 * Some members inherited from MaskableGraphic will no longer be available.
 
-## [4.10.5](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.4...v4.10.5) (2024-12-23)
-
-
-### Bug Fixes
-
-* '3D' scale toggle in the inspector does not keep on reload ([934f4b8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/934f4b8f1c61f8ff20228d0ebcea9f636a3758ed)), closes [#346](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/346)
-
-## [4.10.4](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.3...v4.10.4) (2024-12-19)
-
-
-### Bug Fixes
-
-* rendering issues when playing with opening a prefab stage ([95235a9](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/95235a929b82cf681365ed6eba837d857f83e3d2)), closes [#345](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/345)
-
-## [4.10.3](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.2...v4.10.3) (2024-11-20)
-
-
-### Bug Fixes
-
-* if not configured as a preloaded asset, the project settings asset will be regenerated ([abe0948](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/abe09485f65dd4efd18e74675e752e0213bdf3be)), closes [#342](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/342)
-
-## [4.10.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.1...v4.10.2) (2024-11-01)
-
-
-### Bug Fixes
-
-* trail incorrect offset ([afe00a1](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/afe00a1dde80eb1c0a7bb668b75f4c3733d3fa43)), closes [#335](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/335)
-
-## [4.10.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.10.0...v4.10.1) (2024-09-29)
-
-
-### Bug Fixes
-
-* mainTex will be ignored ([2ee69d0](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/2ee69d04245fabce185f67dc9bd68c870e556564))
-
-# [4.10.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.9.1...v4.10.0) (2024-09-29)
-
-
-### Bug Fixes
-
-* component icon is not set ([5ff6ec8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/5ff6ec815a174de5d3f16d424f1204c60912a8d8))
-
-
-### Features
-
-* add project settings ([1ce4e31](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/1ce4e31a9681bf1a201d2723c8d97e07ecc16592))
-
-## [4.9.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.9.0...v4.9.1) (2024-08-07)
-
-
-### Bug Fixes
-
-* ParticleSystem trails gain offset on parent canvas change ([2a1cd50](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/2a1cd502b452b5b56edf8bcfe91adf99d1bb5147)), closes [#323](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/323)
-
-# [4.9.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.8.1...v4.9.0) (2024-07-18)
-
-
-### Features
-
-* ParticleAttractor supports multiple ParticleSystems ([3834780](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/3834780fdb43443fe6e1ef89df54d26a24d62a91))
-
-## [4.8.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.8.0...v4.8.1) (2024-06-27)
-
-
-### Bug Fixes
-
-* remove debug code ([669deb4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/669deb41d4ac589d9db93b29bc8e95383e7f28a5))
-
-# [4.8.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.7.2...v4.8.0) (2024-06-27)
-
-
-### Bug Fixes
-
-* generated baking-camera object remains in the prefab or scene (again) ([de35cba](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/de35cba34c6312c1405ed522e9927c620c78e72d))
-* SetParticleSystemInstance/Prefab APIs destroy generated objects ([ae3f3a8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/ae3f3a8e62cc733420354d237ab765ac777127c8))
-
-
-### Features
-
-* add 'custom view' option. ([a703c29](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/a703c2921ca08c2280d0c8fde01e4c0b33b5c69e))
-* remove overlay window (editor) ([8358170](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/835817049f4fcf00dd2bf98dbada14f041ad3544))
-* restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` (again) ([88a970d](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/88a970d93a2b69cf011d86bd1807569e90538e0e))
-* the rendering order list in inspector is now more compact ([be90172](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/be901724e064befacf617f4940b0331e1d31e1ca))
-
-## [4.7.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.7.1...v4.7.2) (2024-06-21)
-
-
-### Bug Fixes
-
-* generated baking-camera object remains in the prefab or scene ([0bb8438](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/0bb843830197d8c1252232928becc211c0ada08d))
-
-## [4.7.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.7.0...v4.7.1) (2024-06-20)
-
-
-### Bug Fixes
-
-* despite not using the size module, particles become smaller based on their z position ([a8ed6e6](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/a8ed6e68584e1d9e45ed852eefcc03979ea7e0e1)), closes [#316](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/316)
-
-# [4.7.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.8...v4.7.0) (2024-06-19)
-
-
-### Bug Fixes
-
-* `UIParticle.transform.localScale` does not scale particles ([1d40e24](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/1d40e24c742741e97f03c55468ccb1e505341133)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
-* UIParticle is scaled by canvas size even when `AutoScalingMode.None` and `ScalingMode.Local` ([54a4b1c](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/54a4b1cdfd06400c7be89c1ee704bb42a659c7c2)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
-* UIParticle is scaled incorrectly with nested canvases ([f26920f](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/f26920f9825547222a4afbb31cc5dc5a002c3e9b)), closes [#313](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/313)
-
-
-### Features
-
-* reset previous position on start play for world space simulation ([3880484](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/3880484ce5190c42fc79c81d0b69e3fbeda09dd0)), closes [#303](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/303)
-* restore `Transform.localScale` when setting `autoScalingMode` to something other than `Transform` ([5505247](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/5505247a94a929ff89635fde512a9b95691e0043))
-
-## [4.6.8](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.7...v4.6.8) (2024-06-14)
-
-
-### Bug Fixes
-
-* 'Resource ID out of range in GetResource' error in overlay rendering mode ([05286ce](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/05286cedfd17b1a0cb90a5e918513644f47cd831)), closes [#308](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/308)
-
-## [4.6.7](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/v4.6.6...v4.6.7) (2024-05-24)
-
-
-### Bug Fixes
-
-* the ParticleSystem's localPosition drifts at certain scales due to floating-point precision issues ([e924eb4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/e924eb45968a112347471cabaeabc274e4c37ce4)), closes [#299](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/299) [#312](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/312)
-
 ## [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.Append(b);
-                    return s_Sb.Append(", ");
-                });
+                result.Aggregate(s_Sb, (a, b) => s_Sb.AppendFormat("{0}, ", b));
                 s_Sb.Length -= 2;
             }
 
             return s_Sb.ToString();
         }
 
-        public static void Draw(SerializedProperty sp, List<Material> mats)
+        public static void Draw(SerializedProperty sp, Material[] mats)
         {
-            var pos = EditorGUILayout.GetControlRect(true);
-            var label = new GUIContent(sp.displayName, sp.tooltip);
-            var rect = EditorGUI.PrefixLabel(pos, label);
-            var text = sp.hasMultipleDifferentValues
-                ? "-"
-                : CollectActiveNames(sp, s_ActiveNames);
+            bool isClicked;
+            using (new EditorGUILayout.HorizontalScope(GUILayout.ExpandWidth(false)))
+            {
+                var pos = EditorGUILayout.GetControlRect(true);
+                var label = new GUIContent(sp.displayName, sp.tooltip);
+                var rect = EditorGUI.PrefixLabel(pos, label);
+                var text = sp.hasMultipleDifferentValues
+                    ? "-"
+                    : CollectActiveNames(sp, s_ActiveNames);
+                isClicked = GUI.Button(rect, text, EditorStyles.popup);
+            }
 
-            if (!GUI.Button(rect, text, EditorStyles.popup)) return;
+            if (!isClicked) return;
 
             var gm = new GenericMenu();
-            gm.AddItem(s_ContentNothing, s_ActiveNames.Count == 0, x =>
+            gm.AddItem(s_ContentNothing, s_ActiveNames.Count == 0, () =>
             {
-                var current = (SerializedProperty)x;
-                current.ClearArray();
-                current.serializedObject.ApplyModifiedProperties();
-            }, sp);
+                sp.ClearArray();
+                sp.serializedObject.ApplyModifiedProperties();
+            });
 
             if (!sp.hasMultipleDifferentValues)
             {
@@ -73,7 +73,7 @@ namespace Coffee.UIExtensions
             }
 
             s_Names.Clear();
-            for (var j = 0; j < mats.Count; j++)
+            for (var j = 0; j < mats.Length; j++)
             {
                 var mat = mats[j];
                 if (!mat || !mat.shader) continue;
@@ -82,7 +82,8 @@ namespace Coffee.UIExtensions
                 {
                     var name = ShaderUtil.GetPropertyName(mat.shader, i);
                     var type = (AnimatableProperty.ShaderPropertyType)ShaderUtil.GetPropertyType(mat.shader, i);
-                    if (!s_Names.Add(name)) continue;
+                    if (s_Names.Contains(name)) continue;
+                    s_Names.Add(name);
 
                     AddMenu(gm, sp, new ShaderProperty(name, type), true);
 

Packages/src/Editor/Internal.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 157d70e6cb69d4581b4ed450c7ffd33d
+guid: 3e440931f761e4e888510a4e6045287a
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

Packages/src/Editor/UIParticleEditor.cs

@@ -4,16 +4,17 @@ using System.Text.RegularExpressions;
 using UnityEditor;
 using UnityEditorInternal;
 using UnityEngine;
-using UnityEngine.Profiling;
 using UnityEngine.UI;
-using Coffee.UIParticleInternal;
+
 #if UNITY_2021_2_OR_NEWER
 using UnityEditor.Overlays;
 #else
 using System;
 using System.Reflection;
+using Coffee.UIParticleInternal;
 using Object = UnityEngine.Object;
 #endif
+
 #if UNITY_2021_2_OR_NEWER
 using UnityEditor.SceneManagement;
 
@@ -27,29 +28,18 @@ namespace Coffee.UIExtensions
     [CanEditMultipleObjects]
     internal class UIParticleEditor : Editor
     {
-        internal class State : ScriptableSingleton<State>
-        {
-            public bool is3DScaleMode;
-        }
-
         //################################
         // Constant or Static Members.
         //################################
-        private static readonly GUIContent[] s_ContentMaterials = new[]
-        {
-            new GUIContent("Material"),
-            new GUIContent("Trail Material")
-        };
-
         private static readonly GUIContent s_ContentRenderingOrder = new GUIContent("Rendering Order");
         private static readonly GUIContent s_ContentRefresh = new GUIContent("Refresh");
         private static readonly GUIContent s_ContentFix = new GUIContent("Fix");
+        private static readonly GUIContent s_ContentMaterial = new GUIContent("Material");
+        private static readonly GUIContent s_ContentTrailMaterial = new GUIContent("Trail Material");
         private static readonly GUIContent s_Content3D = new GUIContent("3D");
         private static readonly GUIContent s_ContentRandom = new GUIContent("Random");
         private static readonly GUIContent s_ContentScale = new GUIContent("Scale");
-        private static readonly GUIContent s_ContentPrimary = new GUIContent("Primary");
-        private static readonly Regex s_RegexBuiltInGuid = new Regex(@"^0{16}.0{15}$", RegexOptions.Compiled);
-        private static readonly List<Material> s_TempMaterials = new List<Material>();
+        private static bool s_XYZMode;
 
         private SerializedProperty _maskable;
         private SerializedProperty _scale3D;
@@ -59,12 +49,8 @@ namespace Coffee.UIExtensions
         private SerializedProperty _groupMaxId;
         private SerializedProperty _positionMode;
         private SerializedProperty _autoScalingMode;
-        private SerializedProperty _useCustomView;
-        private SerializedProperty _customViewSize;
-        private SerializedProperty _timeScaleMultiplier;
         private ReorderableList _ro;
         private bool _showMax;
-        private bool _is3DScaleMode;
 
         private static readonly HashSet<Shader> s_Shaders = new HashSet<Shader>();
 #if UNITY_2018 || UNITY_2019
@@ -96,44 +82,31 @@ namespace Coffee.UIExtensions
             _groupMaxId = serializedObject.FindProperty("m_GroupMaxId");
             _positionMode = serializedObject.FindProperty("m_PositionMode");
             _autoScalingMode = serializedObject.FindProperty("m_AutoScalingMode");
-            _useCustomView = serializedObject.FindProperty("m_UseCustomView");
-            _customViewSize = serializedObject.FindProperty("m_CustomViewSize");
-            _timeScaleMultiplier = serializedObject.FindProperty("m_TimeScaleMultiplier");
 
             var sp = serializedObject.FindProperty("m_Particles");
             _ro = new ReorderableList(sp.serializedObject, sp, true, true, true, true)
             {
-                elementHeightCallback = index =>
-                {
-                    var ps = sp.GetArrayElementAtIndex(index).objectReferenceValue as ParticleSystem;
-                    var materialCount = 0;
-                    if (ps && ps.TryGetComponent<ParticleSystemRenderer>(out var psr))
-                    {
-                        materialCount = psr.sharedMaterials.Length;
-                    }
-
-                    return (materialCount + 1) * (EditorGUIUtility.singleLineHeight + 2);
-                },
+                elementHeight = EditorGUIUtility.singleLineHeight * 3 + 4,
+                elementHeightCallback = _ => 3 * (EditorGUIUtility.singleLineHeight + 2),
                 drawElementCallback = (rect, index, _, __) =>
                 {
-                    rect.y += 2;
+                    EditorGUI.BeginDisabledGroup(sp.hasMultipleDifferentValues);
+                    rect.y += 1;
                     rect.height = EditorGUIUtility.singleLineHeight;
                     var p = sp.GetArrayElementAtIndex(index);
                     EditorGUI.ObjectField(rect, p, GUIContent.none);
-                    var ps = p.objectReferenceValue as ParticleSystem;
-                    if (!ps || !ps.TryGetComponent<ParticleSystemRenderer>(out var psr)) return;
-
                     rect.x += 15;
                     rect.width -= 15;
-                    var materials = new SerializedObject(psr).FindProperty("m_Materials");
-                    var count = Mathf.Min(materials.arraySize, 2);
-                    for (var i = 0; i < count; i++)
-                    {
-                        rect.y += rect.height + 2;
-                        EditorGUI.PropertyField(rect, materials.GetArrayElementAtIndex(i), s_ContentMaterials[i]);
-                    }
-
-                    if (materials.serializedObject.hasModifiedProperties)
+                    var ps = p.objectReferenceValue as ParticleSystem;
+                    var materials = ps
+                        ? new SerializedObject(ps.GetComponent<ParticleSystemRenderer>()).FindProperty("m_Materials")
+                        : null;
+                    rect.y += rect.height + 1;
+                    MaterialField(rect, s_ContentMaterial, materials, 0);
+                    rect.y += rect.height + 1;
+                    MaterialField(rect, s_ContentTrailMaterial, materials, 1);
+                    EditorGUI.EndDisabledGroup();
+                    if (materials != null && materials.serializedObject.hasModifiedProperties)
                     {
                         materials.serializedObject.ApplyModifiedProperties();
                     }
@@ -167,18 +140,19 @@ namespace Coffee.UIExtensions
                     uip.RefreshParticles(uip.particles);
                 }
             }
+        }
 
-            // Initialize 3D scale mode.
-            _is3DScaleMode = State.instance.is3DScaleMode;
-            if (!_is3DScaleMode)
+        private static void MaterialField(Rect rect, GUIContent label, SerializedProperty sp, int index)
+        {
+            if (sp == null || sp.arraySize <= index)
             {
-                var x = _scale3D.FindPropertyRelative("x");
-                var y = _scale3D.FindPropertyRelative("y");
-                var z = _scale3D.FindPropertyRelative("z");
-                _is3DScaleMode = !Mathf.Approximately(x.floatValue, y.floatValue) ||
-                                 !Mathf.Approximately(y.floatValue, z.floatValue) ||
-                                 y.hasMultipleDifferentValues ||
-                                 z.hasMultipleDifferentValues;
+                EditorGUI.BeginDisabledGroup(true);
+                EditorGUI.ObjectField(rect, label, null, typeof(Material), true);
+                EditorGUI.EndDisabledGroup();
+            }
+            else
+            {
+                EditorGUI.PropertyField(rect, sp.GetArrayElementAtIndex(index), label);
             }
         }
 
@@ -190,7 +164,6 @@ namespace Coffee.UIExtensions
             var current = target as UIParticle;
             if (!current) return;
 
-            Profiler.BeginSample("(UIP:E) OnInspectorGUI");
             serializedObject.Update();
 
             // Maskable
@@ -198,16 +171,17 @@ namespace Coffee.UIExtensions
 
             // Scale
             EditorGUI.BeginDisabledGroup(!_meshSharing.hasMultipleDifferentValues && _meshSharing.intValue == 4);
-            if (DrawFloatOrVector3Field(_scale3D, _is3DScaleMode) != _is3DScaleMode)
-            {
-                State.instance.is3DScaleMode = _is3DScaleMode = !_is3DScaleMode;
-            }
-
+            s_XYZMode = DrawFloatOrVector3Field(_scale3D, s_XYZMode);
             EditorGUI.EndDisabledGroup();
 
             // AnimatableProperties
-            current.GetMaterials(s_TempMaterials);
-            AnimatablePropertyEditor.Draw(_animatableProperties, s_TempMaterials);
+            var mats = current.particles
+                .Where(x => x)
+                .Select(x => x.GetComponent<ParticleSystemRenderer>().sharedMaterial)
+                .Where(x => x)
+                .ToArray();
+
+            AnimatablePropertyEditor.Draw(_animatableProperties, mats);
 
             // Mesh sharing
             EditorGUI.BeginChangeCheck();
@@ -215,12 +189,9 @@ namespace Coffee.UIExtensions
             if (EditorGUI.EndChangeCheck())
             {
                 serializedObject.ApplyModifiedProperties();
-                foreach (var t in targets)
+                foreach (var uip in targets.OfType<UIParticle>())
                 {
-                    if (t is UIParticle uip)
-                    {
-                        uip.ResetGroupId();
-                    }
+                    uip.ResetGroupId();
                 }
             }
 
@@ -228,32 +199,16 @@ namespace Coffee.UIExtensions
             EditorGUILayout.PropertyField(_positionMode);
 
             // Auto Scaling
-            EditorGUILayout.PropertyField(_autoScalingMode);
-
-            // Custom View Size
-            EditorGUILayout.PropertyField(_useCustomView);
-            EditorGUI.BeginChangeCheck();
-            EditorGUI.BeginDisabledGroup(!_useCustomView.boolValue);
-            EditorGUI.indentLevel++;
-            EditorGUILayout.PropertyField(_customViewSize);
-            EditorGUI.indentLevel--;
-            EditorGUI.EndDisabledGroup();
-            if (EditorGUI.EndChangeCheck())
-            {
-                _customViewSize.floatValue = Mathf.Max(0.1f, _customViewSize.floatValue);
-            }
-
-            // Time Scale Multiplier
-            EditorGUILayout.PropertyField(_timeScaleMultiplier);
+            DrawAutoScaling(_autoScalingMode, targets.OfType<UIParticle>());
 
             // Target ParticleSystems.
             EditorGUI.BeginChangeCheck();
+            EditorGUI.BeginDisabledGroup(targets.OfType<UIParticle>().Any(x => !x.canvas));
             _ro.DoLayoutList();
+            EditorGUI.EndDisabledGroup();
             serializedObject.ApplyModifiedProperties();
-
             if (EditorGUI.EndChangeCheck())
             {
-                EditorApplication.QueuePlayerLoopUpdate();
                 foreach (var uip in targets.OfType<UIParticle>())
                 {
                     uip.RefreshParticles(uip.particles);
@@ -261,8 +216,7 @@ namespace Coffee.UIExtensions
             }
 
             // Non-UI built-in shader is not supported.
-            Profiler.BeginSample("(UIP:E) Non-UI built-in shader is not supported.");
-            foreach (var mat in s_TempMaterials)
+            foreach (var mat in current.materials)
             {
                 if (!mat || !mat.shader) continue;
                 var shader = mat.shader;
@@ -275,18 +229,15 @@ namespace Coffee.UIExtensions
                 }
             }
 
-            Profiler.EndSample();
-
             // Does the shader support UI masks?
-            Profiler.BeginSample("(UIP:E) Does the shader support UI masks?");
             if (current.maskable && current.GetComponentInParent<Mask>(false))
             {
-                foreach (var mat in s_TempMaterials)
+                foreach (var mat in current.materials)
                 {
                     if (!mat || !mat.shader) continue;
                     var shader = mat.shader;
-                    if (!s_Shaders.Add(shader)) continue;
-
+                    if (s_Shaders.Contains(shader)) continue;
+                    s_Shaders.Add(shader);
                     foreach (var propName in s_MaskablePropertyNames)
                     {
                         if (mat.HasProperty(propName)) continue;
@@ -300,9 +251,7 @@ namespace Coffee.UIExtensions
                 }
             }
 
-            s_TempMaterials.Clear();
             s_Shaders.Clear();
-            Profiler.EndSample();
 
             // UIParticle for trail should be removed.
             var label = "This UIParticle component should be removed. The UIParticle for trails is no longer needed.";
@@ -341,14 +290,12 @@ namespace Coffee.UIExtensions
                 }
             }
 #endif
-            Profiler.EndSample();
         }
 
-        private static bool IsBuiltInObject(Object obj)
+        private bool IsBuiltInObject(Object obj)
         {
-            return AssetDatabase.IsMainAsset(obj)
-                   && AssetDatabase.TryGetGUIDAndLocalFileIdentifier(obj, out var guid, out long _)
-                   && s_RegexBuiltInGuid.IsMatch(guid);
+            return AssetDatabase.TryGetGUIDAndLocalFileIdentifier(obj, out var guid, out long _)
+                   && Regex.IsMatch(guid, "^0{16}.0{15}$", RegexOptions.Compiled);
         }
 
 #if UNITY_2018 || UNITY_2019
@@ -442,7 +389,7 @@ namespace Coffee.UIExtensions
             {
                 EditorGUI.BeginDisabledGroup(true);
                 var obj = UIParticleUpdater.GetPrimary(spGroupId.intValue);
-                EditorGUILayout.ObjectField(s_ContentPrimary, obj, typeof(UIParticle), false);
+                EditorGUILayout.ObjectField("Primary", obj, typeof(UIParticle), false);
                 EditorGUI.EndDisabledGroup();
             }
 
@@ -452,7 +399,7 @@ namespace Coffee.UIExtensions
             return showMax;
         }
 
-        private static void DrawAutoScaling(SerializedProperty prop)
+        private static void DrawAutoScaling(SerializedProperty prop, IEnumerable<UIParticle> uiParticles)
         {
             EditorGUILayout.PropertyField(prop);
         }
@@ -461,11 +408,7 @@ namespace Coffee.UIExtensions
         {
             if (!p || (ignoreCurrent && target == p)) return;
 
-            Misc.DestroyImmediate(p);
-            if (p.TryGetComponent<CanvasRenderer>(out var cr))
-            {
-                Misc.DestroyImmediate(cr);
-            }
+            DestroyImmediate(p);
 
 #if UNITY_2018_3_OR_NEWER
             var stage = PrefabStageUtility.GetCurrentPrefabStage();

Packages/src/Icons.meta

@@ -1,5 +1,6 @@
 fileFormatVersion: 2
-guid: dfba9a6f2258941f5b4429fba806d8e9
+guid: 7a55e246f37df405bac88eac692e3a86
+folderAsset: yes
 DefaultImporter:
   externalObjects: {}
   userData: 

Packages/src/README.md

@@ -1,87 +1,61 @@
-# <img alt="UIParticleIcon" src="https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/d76e105e-a840-4f61-a1f6-8cf311c0812d" width="26"/> UI Particle v5 <!-- omit in toc -->
+# <img alt="UIParticleIcon" src="https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/d76e105e-a840-4f61-a1f6-8cf311c0812d" width="26"/> Particle Effect For UGUI (UI Particle)
+
+This package provides a component to render particle effects for uGUI in Unity 2018.2 or later.  
+The particle rendering is maskable and sortable, without the need for an extra Camera, RenderTexture, or Canvas.
 
 [![](https://img.shields.io/npm/v/com.coffee.ui-particle?label=openupm&registry_uri=https://package.openupm.com)](https://openupm.com/packages/com.coffee.ui-particle/)
-[![](https://img.shields.io/github/v/release/mob-sakai/ParticleEffectForUGUI)](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
-[![](https://img.shields.io/github/license/mob-sakai/ParticleEffectForUGUI.svg)](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/LICENSE.md)  
-![](https://img.shields.io/badge/Unity-2019.3+-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://img.shields.io/github/v/release/mob-sakai/ParticleEffectForUGUI?include_prereleases)](https://github.com/mob-sakai/ParticleEffectForUGUI/releases)
+[![](https://img.shields.io/github/license/mob-sakai/ParticleEffectForUGUI.svg)](https://github.com/mob-sakai/ParticleEffectForUGUI/blob/main/LICENSE.txt)  
+![](https://img.shields.io/badge/Unity-2018.2+-57b9d3.svg?style=flat&logo=unity)
 ![](https://github.com/mob-sakai/ParticleEffectForUGUI/actions/workflows/test.yml/badge.svg?branch=develop)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-orange.svg)](http://makeapullrequest.com)
-[![](https://img.shields.io/github/watchers/mob-sakai/ParticleEffectForUGUI.svg?style=social&label=Watch)](https://github.com/mob-sakai/ParticleEffectForUGUI/subscription)
 [![](https://img.shields.io/twitter/follow/mob_sakai.svg?label=Follow&style=social)](https://twitter.com/intent/follow?screen_name=mob_sakai)
 
-<< [📝 Description](#-description-) | [📌 Key Features](#-key-features) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🔄 Upgrading to 5.x](#-upgrading-from-3x4x-to-5x) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>
-
-## 📝 Description <!-- omit in toc -->
-
-![](https://user-images.githubusercontent.com/12690315/41771577-8da4b968-7650-11e8-9524-cd162c422d9d.gif)
-
-This package uses the new APIs `MeshBake/MeshTrailBake` (introduced in Unity 2018.2) to render particles through `CanvasRenderer`.  
-You can render, mask, and sort your `ParticleSystems` for UI without the need for an additional `Camera`, `RenderTexture`, or `Canvas`.
-
-- [📌 Key Features](#-key-features)
-- [🎮 Demo](#-demo)
-- [⚙ Installation](#-installation)
-    - [Install via OpenUPM](#install-via-openupm)
-    - [Install via UPM (with Package Manager UI)](#install-via-upm-with-package-manager-ui)
-    - [Install via UPM (Manually)](#install-via-upm-manually)
-  - [Install as Embedded Package](#install-as-embedded-package)
-- [🔄 Upgrading from v3/v4 to v5](#-upgrading-from-v3v4-to-v5)
-  - [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)
-  - [Project Settings](#project-settings)
-- [🛠 Development Note](#-development-note)
-  - [Compares the Baking mesh approach with the conventional approach](#compares-the-baking-mesh-approach-with-the-conventional-approach)
-    - [Performance test results](#performance-test-results)
-  - [🔍 FAQ: Why Are My UIParticles Not Displayed Correctly?](#-faq-why-are-my-uiparticles-not-displayed-correctly)
-  - [Shader Limitation](#shader-limitation)
-    - [Built-in shaders are not supported](#built-in-shaders-are-not-supported)
-    - [(Unity 2018 or 2019) UV.zw components will be discarded](#unity-2018-or-2019-uvzw-components-will-be-discarded)
-    - [(Unity 2018 or 2019) Custom vertex streams](#unity-2018-or-2019-custom-vertex-streams)
-  - [Overheads](#overheads)
-  - [How to Make a Custom Shader to Support `Mask` and `RectMask2D` Component](#how-to-make-a-custom-shader-to-support-mask-and-rectmask2d-component)
-- [🤝 Contributing](#-contributing)
-  - [Issues](#issues)
-  - [Pull Requests](#pull-requests)
-  - [Support](#support)
-- [License](#license)
-- [Author](#author)
-- [See Also](#see-also)
+<< [📝 Description](#-description) | [🎮 Demo](#-demo) | [⚙ Installation](#-installation) | [🚀 Usage](#-usage) | [🛠 Development Note](#-development-note) | [🤝 Contributing](#-contributing) >>
 
 <br><br>
 
-## 📌 Key Features
+## 📝 Description
 
-* **Easy to use:** The package is ready to use out of the box.
-* **Sortable:** Sort particle effects and other UI elements by sibling index.
-* **Maskable:** Supports `Mask` or `RectMask2D`.
-* **No extra components required:** No need for an additional `Camera`, `RenderTexture`, or `Canvas`.
-* **Trail module support:** Fully supports the Trail module.
-* **CanvasGroup alpha support:** Integrates with `CanvasGroup` alpha.
-* **No allocations:** Efficiently renders particles without allocations.
-* **Any canvas render mode support:** Works with overlay, camera space, and world space.
-* **Any Render pipeline support:** Compatible with Universal Render Pipeline (URP) and High Definition Render Pipeline (HDRP).
-* **Disabling domain reload support:** Supports disabling `Enter Play Mode Options > Reload Domain`.
-* **Animatable material properties:** Supports changing material properties with AnimationClip (AnimatableProperty).  
-  ![AnimatableProperty.gif](https://user-images.githubusercontent.com/12690315/53286323-2d94a980-37b0-11e9-8afb-c4a207805ff2.gif)
-* **Multiple materials:** Supports 8+ materials.
-* **Correct positioning:** Adjusts world space particle positions correctly when changing window size for standalone platforms (Windows, MacOSX, and Linux).
-* **Adaptive scaling:** Provides adaptive scaling for UI (AutoScalingMode).
-* **Performance optimization:** Mesh sharing group to improve performance.  
-  <img alt="MeshSharing.gif" src="https://user-images.githubusercontent.com/12690315/174311048-c882df81-6c34-4eba-b0aa-5645457692f1.gif" width="450"/>
-* **Particle attractor:** Includes a particle attractor component.  
-  <img alt="ParticleAttractor.gif" src="https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif" width="450"/>
-* **Emission position mode:** Supports relative/absolute particle emission position modes.  
-  <img alt="AbsolutePosition.gif" src="https://user-images.githubusercontent.com/12690315/175751579-5a2357e8-2ecf-4afd-83c8-66e9771bde39.gif" width="450"/>
-* **Custom view size:** Fixes min/max particle size mismatch.  
-  ![CustomViewSize.gif](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/dd929959-1a37-420b-b13d-e849022b9c9d)
+![](https://user-images.githubusercontent.com/12690315/41771577-8da4b968-7650-11e8-9524-cd162c422d9d.gif)
+
+This package utilizes the new APIs `MeshBake/MashTrailBake` (introduced with Unity 2018.2) to render particles through
+CanvasRenderer.  
+You can render, mask, and sort your ParticleSystems for UI without the necessity of an additional Camera, RenderTexture,
+or Canvas.
+
+### Features
+
+* Easy to use: The package is ready to use out of the box.
+* Sort particle effects and other UI by sibling index.
+* No extra Camera, RenderTexture, or Canvas required.
+* Masking options for Mask or RectMask2D.
+* Support for the Trail module.
+* Support for CanvasGroup alpha.
+* No allocations needed to render particles.
+* Compatibility with overlay, camera space, and world space.
+* Support for Universal Render Pipeline (URP) and High Definition Render Pipeline (HDRP).
+* Support for disabling `Enter Play Mode Options > Reload Domain`.
+* Support for changing material property with AnimationClip (AnimatableProperty).  
+  ![AnimatableProperty.gif][AnimatableProperty.gif]
+* [4.0.0+] Support for 8+ materials.
+* [4.0.0+] Correct world space particle position adjustment when changing window size for standalone platforms (Windows,
+  MacOSX, and Linux).
+* [4.0.0+] Adaptive scaling for UI.
+* [4.0.0+] Mesh sharing group to improve performance.  
+  ![MeshSharing.gif][MeshSharing.gif]
+* [4.0.0+] Particle attractor component.  
+  ![ParticleAttractor.gif][ParticleAttractor.gif]
+* [4.1.0+] Relative/Absolute particle position mode.  
+  ![AbsolutePosition.gif][AbsolutePosition.gif]
+
+[AnimatableProperty.gif]: https://user-images.githubusercontent.com/12690315/53286323-2d94a980-37b0-11e9-8afb-c4a207805ff2.gif
+
+[MeshSharing.gif]: https://user-images.githubusercontent.com/12690315/174311048-c882df81-6c34-4eba-b0aa-5645457692f1.gif
+
+[ParticleAttractor.gif]: https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif
+
+[AbsolutePosition.gif]: https://user-images.githubusercontent.com/12690315/175751579-5a2357e8-2ecf-4afd-83c8-66e9771bde39.gif
 
 <br><br>
 
@@ -102,106 +76,76 @@ You can render, mask, and sort your `ParticleSystems` for UI without the need fo
 
 [JMO]: https://assetstore.unity.com/publishers/1669
 
+
 <br><br>
 
 ## ⚙ Installation
 
-_This package requires **Unity 2019.3 or later**._
+_This package requires Unity 2018.3 or later._
 
 #### Install via OpenUPM
 
-- This package is available on [OpenUPM](https://openupm.com) package registry.
-- This is the preferred method of installation, as you can easily receive updates as they're released.
-- If you have [openupm-cli](https://github.com/openupm/openupm-cli) installed, then run the following command in your project's directory:
-  ```
-  openupm add com.coffee.ui-particle
-  ```
-- To update the package, use Package Manager UI (`Window > Package Manager`) or run the following command with `@{version}`:
-  ```
-  openupm add com.coffee.ui-particle@5.0.0
-  ```
+This package is available on [OpenUPM](https://openupm.com) package registry.
+This is the preferred method of installation, as you can easily receive updates as they're released.
 
-#### Install via UPM (with Package Manager UI)
+If you have [openupm-cli](https://github.com/openupm/openupm-cli) installed, then run the following command in your
+project's directory:
 
-- Click `Window > Package Manager` to open Package Manager UI.
-- Click `+ > Add package from git URL...` and input the repository URL: `https://github.com/mob-sakai/ParticleEffectForUGUI.git?path=Packages/src`  
-  ![](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?path=Packages/src#5.0.0`
+```sh
+openupm add com.coffee.ui-particle
+```
 
-#### Install via UPM (Manually)
+#### Install via UPM (using Git URL)
 
-- Open the `Packages/manifest.json` file in your project. Then add this package somewhere in the `dependencies` block:
-  ```json
-  {
-    "dependencies": {
-      "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git?path=Packages/src",
-      ...
-    }
+Navigate to your project's Packages folder and open the `manifest.json` file. Then add this package somewhere in
+the `dependencies` block:
+
+```json
+{
+  "dependencies": {
+    "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git",
+    ...
   }
-  ```
+}
+```
 
-- To update the package, change suffix `#{version}` to the target version.
-  - e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git?path=Packages/src#5.0.0",`
+To update the package, change suffix `#{version}` to the target version.
 
-### Install as Embedded Package
+* e.g. `"com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git#4.6.0",`
 
-1. Download the `Source code (zip)` file from [Releases](https://github.com/mob-sakai/SoftMaskForUGUI/releases) and
-   extract it.
-2. Move the `<extracted_dir>/Packages/src` directory into your project's `Packages` directory.  
-   ![](https://github.com/user-attachments/assets/187cbcbe-5922-4ed5-acec-cf19aa17d208)
-    - You can rename the `src` directory if needed.
-    - If you intend to fix bugs or add features, installing it as an embedded package is recommended.
-    - To update the package, re-download it and replace the existing contents.
+Or, use [UpmGitExtension](https://github.com/mob-sakai/UpmGitExtension) to install and update the package.
 
 <br><br>
 
-## 🔄 Upgrading from v3/v4 to v5
+## ⚙ 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`.
-- If you are installing via git URL, add `?path=Packages/src`.
-   ```json
-   // v3/v4
-   "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git",
-   
-   // v5
-   "com.coffee.ui-particle": "https://github.com/mob-sakai/ParticleEffectForUGUI.git?path=Packages/src",
-   ```
+- 
 
 <br><br>
 
 ## 🚀 Usage
 
-### Component: UIParticle
+### UIParticle Component
 
 `UIParticle` controls the ParticleSystems that are attached to its own game objects and child game objects.
 
-![](https://github.com/user-attachments/assets/bc9eb783-afce-4102-ac61-aee9ea8d6f2f)
+![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/3559df45-63e7-4c4c-9233-f455779efa29)
 
-- **Maskable**: Does this graphic allow maskable.
-- **Scale**: Scale the rendering particles. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.
+- **Maskable**: Does this graphic allow masking.
+- **Scale**: Scale the rendering. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.
 - **Animatable Properties**: If you want to update material properties (e.g., `_MainTex_ST`, `_Color`) in AnimationClip,
-  use this to mark as animatable.
+  use this to mark the changes.
 - **Mesh Sharing**: Particle simulation results are shared within the same group. A large number of the same effects can
   be displayed with a small load. When the `Random` toggle is enabled, it will be grouped randomly.
-  - **None:** Disable mesh sharing.
-  - **Auto:** Automatically select Primary/Replica.
-  - **Primary:** Provides particle simulation results to the same group.
-  - **Primary Simulator:** Primary, but do not render the particle (simulation only).
-  - **Replica:** Render simulation results provided by the primary.
 - **Position Mode**: Emission position mode.
-  - **Absolute:** The particles will be emitted from the world position.
-  - **Relative:** The particles will be emitted from the scaled position.
-- **Auto Scaling Mode**: How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.
-  - **None:** Do nothing.
-  - **Transform:** Transform.lossyScale (=world scale) will be set to (1, 1, 1).
-  - **UIParticle:** UIParticle.scale will be adjusted.
-- **Use Custom View:** Use this if the particles are not displayed correctly due to min/max particle size.
-  - **Custom view size:** Change the bake view size.
-- **Time Scale Multiplier:** Time scale multiplier.
+    - **Absolute:** Emit from the world position of the `ParticleSystem`.
+    - **Relative:** Emit from the scaled position of the `ParticleSystem`.
+- **Auto Scaling**: `Transform.lossyScale` (=world scale) will be set to `(1, 1, 1)` on update. It prevents the
+  root-Canvas scale from affecting the hierarchy-scaled `ParticleSystem`.
 - **Rendering Order**: The ParticleSystem list to be rendered. You can change the order and the materials.
 
 **NOTE:** Press the `Refresh` button to reconstruct the rendering order based on children ParticleSystem's sorting order
@@ -209,7 +153,7 @@ and z-position.
 
 <br><br>
 
-### Basic Usage
+#### Basic Usage
 
 1. Select `GameObject/UI/ParticleSystem` to create UIParticle with a ParticleSystem.
    ![particle](https://user-images.githubusercontent.com/12690315/95007361-cad0e880-0649-11eb-8835-f145d62c5977.png)
@@ -218,7 +162,7 @@ and z-position.
 
 <br>
 
-### Usage with Your Existing ParticleSystem Prefab
+#### With Your Existing ParticleSystem Prefab
 
 1. Select `GameObject/UI/ParticleSystem (Empty)` to create UIParticle.
    ![empty](https://user-images.githubusercontent.com/12690315/95007362-cb697f00-0649-11eb-8a09-29b0a13791e4.png)
@@ -227,19 +171,19 @@ and z-position.
 
 <br>
 
-### Usage with `Mask` or `RectMask2D` Component
+#### With `Mask` or `RectMask2D` Component
 
 If you want to mask particles, set a stencil-supported shader (such as `UI/UIAdditive`) to the material for
 ParticleSystem.
 If you use some custom shaders, see
-the [How to Make a Custom Shader to Support Mask/RectMask2D Component](#how-to-make-a-custom-shader-to-support-mask-and-rectmask2d-component)
+the [How to Make a Custom Shader to Support Mask/RectMask2D Component](#how-to-make-a-custom-shader-to-support-maskrectmask2d-component)
 section.
 
 ![](https://user-images.githubusercontent.com/12690315/95017591-3b512700-0695-11eb-864e-04166ea1809a.png)
 
 <br><br>
 
-### Usage with Script
+### Script usage
 
 ```cs
 // Instantiate ParticleSystem prefab with UIParticle on runtime.
@@ -258,14 +202,14 @@ uiParticle.Stop();
 
 <br><br>
 
-### Component: UIParticleAttractor
+### UIParticleAttractor component
 
 `UIParticleAttractor` attracts particles generated by the specified ParticleSystem.
 
-![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/5c20ad73-4b9a-4f38-9cdc-119df5cce077)
+![](https://github.com/mob-sakai/ParticleEffectForUGUI/assets/12690315/ea6ae0ed-f9a8-437c-8baa-47526303391e)  
 ![](https://user-images.githubusercontent.com/12690315/174311027-462929a4-13f0-4ec4-86ea-9c832f2eecf1.gif)
 
-- **Particle Systems**: Attracts particles generated by the specified ParticleSystems.
+- **Particle System**: Attracts particles generated by the specified particle system.
 - **Destination Radius**: Once the particle is within the radius, the particle lifetime will become 0, and `OnAttracted`
   will be called.
 - **Delay Rate**: Delay to start attracting. It is a percentage of the particle's start lifetime.
@@ -279,14 +223,6 @@ uiParticle.Stop();
 
 <br><br>
 
-### Project Settings
-
-![](https://github.com/user-attachments/assets/befc7f34-fb47-4006-831a-eba79fda11ca)
-
-- Click `Edit > Project Settings` to open the Project Settings window and then select `UI > UI Particle` category.
-
-<br><br>
-
 ## 🛠 Development Note
 
 ### Compares the Baking mesh approach with the conventional approach
@@ -418,7 +354,7 @@ When improving performance, keep the following in mind:
     - Consider a single material, atlasing the sprites, and using `Sprite` mode in the `Texture Sheet Animation` module
       in the ParticleSystem.
 
-### How to Make a Custom Shader to Support `Mask` and `RectMask2D` Component
+### How to Make a Custom Shader to Support Mask/RectMask2D Component
 
 <details>
 <summary>Shader tips</summary>

Packages/src/Runtime/Coffee.UIParticle.R.dll.meta

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

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

@@ -18,10 +18,10 @@ namespace Coffee.UIParticleInternal
         public static T[] GetComponentsInChildren<T>(this Component self, int depth)
             where T : Component
         {
-            var results = InternalListPool<T>.Rent();
+            var results = ListPool<T>.Rent();
             self.GetComponentsInChildren_Internal(results, depth);
             var array = results.ToArray();
-            InternalListPool<T>.Return(ref results);
+            ListPool<T>.Return(ref results);
             return array;
         }
 
@@ -50,7 +50,7 @@ namespace Coffee.UIParticleInternal
             var childCount = tr.childCount;
             for (var i = 0; i < childCount; i++)
             {
-                tr.GetChild(i).GetComponentsInChildren_Internal(results, depth - 1);
+                tr.GetChild(i).GetComponentsInChildren(results, depth - 1);
             }
         }
 
@@ -134,35 +134,6 @@ namespace Coffee.UIParticleInternal
             Profiler.EndSample();
         }
 
-        /// <summary>
-        /// Add a component of a specific type to the children of a GameObject.
-        /// </summary>
-        public static void AddComponentOnChildren<T>(this Component self, bool includeSelf)
-            where T : Component
-        {
-            if (self == null) return;
-
-            Profiler.BeginSample("(COF)[ComponentExt] AddComponentOnChildren > Self");
-            if (includeSelf && !self.TryGetComponent<T>(out _))
-            {
-                self.gameObject.AddComponent<T>();
-            }
-
-            Profiler.EndSample();
-
-            Profiler.BeginSample("(COF)[ComponentExt] AddComponentOnChildren > Child");
-            var childCount = self.transform.childCount;
-            for (var i = 0; i < childCount; i++)
-            {
-                var child = self.transform.GetChild(i);
-                if (child.TryGetComponent<T>(out _)) continue;
-
-                child.gameObject.AddComponent<T>();
-            }
-
-            Profiler.EndSample();
-        }
-
 #if !UNITY_2021_2_OR_NEWER && !UNITY_2020_3_45 && !UNITY_2020_3_46 && !UNITY_2020_3_47 && !UNITY_2020_3_48
         public static T GetComponentInParent<T>(this Component self, bool includeInactive) where T : Component
         {
@@ -204,7 +175,7 @@ namespace Coffee.UIParticleInternal
             target.enabled = false;
 
             // Find MonoScript of the specified component.
-            foreach (var script in MonoImporter.GetAllRuntimeMonoScripts())
+            foreach (var script in Resources.FindObjectsOfTypeAll<MonoScript>())
             {
                 if (script.GetClass() != typeof(T))
                 {

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

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

Packages/src/Runtime/Internal/Extensions/ListExtensions.cs.meta

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

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

@@ -0,0 +1,48 @@
+using System.Diagnostics;
+using UnityEditor;
+using UnityEngine;
+
+namespace Coffee.UIParticleInternal
+{
+    internal static class Misc
+    {
+        public static void Destroy(Object obj)
+        {
+            if (!obj) return;
+#if UNITY_EDITOR
+            if (!Application.isPlaying)
+            {
+                Object.DestroyImmediate(obj);
+            }
+            else
+#endif
+            {
+                Object.Destroy(obj);
+            }
+        }
+
+        public static void DestroyImmediate(Object obj)
+        {
+            if (!obj) return;
+#if UNITY_EDITOR
+            if (Application.isEditor)
+            {
+                Object.DestroyImmediate(obj);
+            }
+            else
+#endif
+            {
+                Object.Destroy(obj);
+            }
+        }
+
+        [Conditional("UNITY_EDITOR")]
+        public static void SetDirty(Object obj)
+        {
+#if UNITY_EDITOR
+            if (!obj) return;
+            EditorUtility.SetDirty(obj);
+#endif
+        }
+    }
+}

Packages/src/Runtime/Internal/Extensions/Misc.cs.meta

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

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

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

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

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

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

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

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

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

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

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

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

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

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

@@ -1,132 +0,0 @@
-using System;
-using System.Diagnostics;
-using UnityEditor;
-using UnityEngine;
-using Object = UnityEngine.Object;
-#if UNITY_EDITOR
-using System.IO;
-using System.Linq;
-using System.Reflection;
-#if UNITY_2021_2_OR_NEWER
-using UnityEditor.SceneManagement;
-#else
-using UnityEditor.Experimental.SceneManagement;
-#endif
-#endif
-
-namespace Coffee.UIParticleInternal
-{
-    internal static class Misc
-    {
-        public static T[] FindObjectsOfType<T>() where T : Object
-        {
-#if UNITY_2023_1_OR_NEWER
-            return Object.FindObjectsByType<T>(FindObjectsInactive.Include, FindObjectsSortMode.None);
-#else
-            return Object.FindObjectsOfType<T>();
-#endif
-        }
-
-        public static void Destroy(Object obj)
-        {
-            if (!obj) return;
-#if UNITY_EDITOR
-            if (!Application.isPlaying)
-            {
-                Object.DestroyImmediate(obj);
-            }
-            else
-#endif
-            {
-                Object.Destroy(obj);
-            }
-        }
-
-        public static void DestroyImmediate(Object obj)
-        {
-            if (!obj) return;
-#if UNITY_EDITOR
-            if (Application.isEditor)
-            {
-                Object.DestroyImmediate(obj);
-            }
-            else
-#endif
-            {
-                Object.Destroy(obj);
-            }
-        }
-
-        [Conditional("UNITY_EDITOR")]
-        public static void SetDirty(Object obj)
-        {
-#if UNITY_EDITOR
-            if (!obj) return;
-            EditorUtility.SetDirty(obj);
-#endif
-        }
-
-#if UNITY_EDITOR
-        public static T[] GetAllComponentsInPrefabStage<T>() where T : Component
-        {
-            var prefabStage = PrefabStageUtility.GetCurrentPrefabStage();
-            if (prefabStage == null) return Array.Empty<T>();
-
-            return prefabStage.prefabContentsRoot.GetComponentsInChildren<T>(true);
-        }
-
-        public static bool isBatchOrBuilding => Application.isBatchMode || BuildPipeline.isBuildingPlayer;
-#endif
-
-        [Conditional("UNITY_EDITOR")]
-        public static void QueuePlayerLoopUpdate()
-        {
-#if UNITY_EDITOR
-            if (!EditorApplication.isPlaying)
-            {
-                EditorApplication.QueuePlayerLoopUpdate();
-            }
-#endif
-        }
-    }
-
-#if !UNITY_2021_2_OR_NEWER
-    [AttributeUsage(AttributeTargets.Class)]
-    [Conditional("UNITY_EDITOR")]
-    internal class IconAttribute : Attribute
-    {
-        private readonly string _path;
-
-        public IconAttribute(string path)
-        {
-            _path = path;
-        }
-
-#if UNITY_EDITOR
-        private static Action<Object, Texture2D> s_SetIconForObject = typeof(EditorGUIUtility)
-            .GetMethod("SetIconForObject", BindingFlags.Static | BindingFlags.NonPublic)
-            .CreateDelegate(typeof(Action<Object, Texture2D>), null) as Action<Object, Texture2D>;
-
-        [InitializeOnLoadMethod]
-        private static void InitializeOnLoadMethod()
-        {
-            if (Misc.isBatchOrBuilding) return;
-
-            var types = TypeCache.GetTypesWithAttribute<IconAttribute>();
-            var scripts = MonoImporter.GetAllRuntimeMonoScripts();
-            foreach (var type in types)
-            {
-                var script = scripts.FirstOrDefault(x => x.GetClass() == type);
-                if (!script) continue;
-
-                var path = type.GetCustomAttribute<IconAttribute>()?._path;
-                var icon = AssetDatabase.LoadAssetAtPath<Texture2D>(path);
-                if (!icon) continue;
-
-                s_SetIconForObject(script, icon);
-            }
-        }
-#endif
-    }
-#endif
-}

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

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

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

@@ -8,11 +8,10 @@ namespace Coffee.UIParticleInternal
 {
     internal class ObjectRepository<T> where T : Object
     {
-        private readonly Dictionary<Hash128, Entry> _cache = new Dictionary<Hash128, Entry>(8);
-        private readonly Dictionary<int, Hash128> _objectKey = new Dictionary<int, Hash128>(8);
+        private readonly List<Entry> _cache = new List<Entry>();
         private readonly string _name;
         private readonly Action<T> _onRelease;
-        private readonly Stack<Entry> _pool = new Stack<Entry>(8);
+        private readonly Stack<Entry> _pool = new Stack<Entry>();
 
         public ObjectRepository(Action<T> onRelease = null)
         {
@@ -37,33 +36,40 @@ namespace Coffee.UIParticleInternal
             {
                 _onRelease = onRelease;
             }
-
-            for (var i = 0; i < 8; i++)
-            {
-                _pool.Push(new Entry());
-            }
         }
 
         public int count => _cache.Count;
 
         public void Clear()
         {
-            foreach (var kv in _cache)
+            for (var i = 0; i < _cache.Count; i++)
             {
-                var entry = kv.Value;
+                var entry = _cache[i];
                 if (entry == null) continue;
 
                 entry.Release(_onRelease);
-                _pool.Push(entry);
             }
 
             _cache.Clear();
-            _objectKey.Clear();
         }
 
         public bool Valid(Hash128 hash, T obj)
         {
-            return _cache.TryGetValue(hash, out var entry) && entry.storedObject == obj;
+            // Find existing entry.
+            Profiler.BeginSample("(COF)[ObjectRepository] Valid > Find existing entry");
+            for (var i = 0; i < _cache.Count; ++i)
+            {
+                var entry = _cache[i];
+                if (entry.hash != hash) continue;
+                Profiler.EndSample();
+
+                // Existing entry found.
+                return entry.storedObject == obj;
+            }
+
+            Profiler.EndSample();
+
+            return false;
         }
 
         /// <summary>
@@ -71,69 +77,82 @@ namespace Coffee.UIParticleInternal
         /// </summary>
         public void Get(Hash128 hash, ref T obj, Func<T> onCreate)
         {
-            if (GetFromCache(hash, ref obj)) return;
-            Add(hash, ref obj, onCreate());
+            // Find existing entry.
+            Profiler.BeginSample("(COF)[ObjectRepository] Get > Find existing entry");
+            for (var i = 0; i < _cache.Count; ++i)
+            {
+                var entry = _cache[i];
+                if (entry.hash != hash) continue;
+
+                // Existing entry found.
+                if (entry.storedObject != obj)
+                {
+                    // if the object is different, release the old one.
+                    Release(ref obj);
+                    ++entry.reference;
+                    obj = entry.storedObject;
+                    Logging.Log(_name, $"Get(#{count}): {entry}");
+                }
+
+                Profiler.EndSample();
+                return;
+            }
+
+            Profiler.EndSample();
+
+            // Create new entry.
+            Profiler.BeginSample("(COF)[ObjectRepository] Get > Create new entry");
+            var newEntry = 0 < _pool.Count ? _pool.Pop() : new Entry();
+            newEntry.storedObject = onCreate();
+            newEntry.hash = hash;
+            newEntry.reference = 1;
+            _cache.Add(newEntry);
+            Logging.Log(_name, $"Get(#{count}): {newEntry}");
+
+            Release(ref obj);
+            obj = newEntry.storedObject;
+            Profiler.EndSample();
         }
 
         /// <summary>
         /// Adds or retrieves a cached object based on the hash.
         /// </summary>
         public void Get<TS>(Hash128 hash, ref T obj, Func<TS, T> onCreate, TS source)
-        {
-            if (GetFromCache(hash, ref obj)) return;
-            Add(hash, ref obj, onCreate(source));
-        }
-
-        private bool GetFromCache(Hash128 hash, ref T obj)
         {
             // Find existing entry.
-            Profiler.BeginSample("(COF)[ObjectRepository] GetFromCache");
-            if (_cache.TryGetValue(hash, out var entry))
+            Profiler.BeginSample("(COF)[ObjectRepository] Get > Find existing entry");
+            for (var i = 0; i < _cache.Count; ++i)
             {
-                if (!entry.storedObject)
-                {
-                    Release(ref entry.storedObject);
-                    Profiler.EndSample();
-                    return false;
-                }
+                var entry = _cache[i];
+                if (entry.hash != hash) continue;
 
+                // Existing entry found.
                 if (entry.storedObject != obj)
                 {
                     // if the object is different, release the old one.
                     Release(ref obj);
                     ++entry.reference;
                     obj = entry.storedObject;
-                    Logging.Log(_name, $"Get(total#{count}): {entry}");
+                    Logging.Log(_name, $"Get(#{count}): {entry}");
                 }
 
                 Profiler.EndSample();
-                return true;
-            }
-
-            Profiler.EndSample();
-            return false;
-        }
-
-        private void Add(Hash128 hash, ref T obj, T newObject)
-        {
-            if (!newObject)
-            {
-                Release(ref obj);
-                obj = newObject;
                 return;
             }
 
-            // Create and add a new entry.
-            Profiler.BeginSample("(COF)[ObjectRepository] Add");
+            Profiler.EndSample();
+
+            // Create new entry.
+            Profiler.BeginSample("(COF)[ObjectRepository] Get > Create new entry");
             var newEntry = 0 < _pool.Count ? _pool.Pop() : new Entry();
-            newEntry.storedObject = newObject;
+            newEntry.storedObject = onCreate(source);
             newEntry.hash = hash;
             newEntry.reference = 1;
-            _cache[hash] = newEntry;
-            _objectKey[newObject.GetInstanceID()] = hash;
-            Logging.Log(_name, $"<color=#03c700>Add</color>(total#{count}): {newEntry}");
+            _cache.Add(newEntry);
+            Logging.Log(_name, $"Get(#{count}): {newEntry}");
+
             Release(ref obj);
-            obj = newObject;
+            obj = newEntry.storedObject;
             Profiler.EndSample();
         }
 
@@ -144,45 +163,35 @@ namespace Coffee.UIParticleInternal
         {
             if (ReferenceEquals(obj, null)) return;
 
-            // Find and release the entry.
             Profiler.BeginSample("(COF)[ObjectRepository] Release");
-            var id = obj.GetInstanceID();
-            if (_objectKey.TryGetValue(id, out var hash)
-                && _cache.TryGetValue(hash, out var entry))
+            for (var i = 0; i < _cache.Count; i++)
             {
-                entry.reference--;
-                if (entry.reference <= 0 || !entry.storedObject)
+                var entry = _cache[i];
+
+                if (entry.storedObject != obj)
                 {
-                    Remove(entry);
+                    continue;
                 }
-                else
+
+                if (--entry.reference <= 0)
                 {
-                    Logging.Log(_name, $"Release(total#{_cache.Count}): {entry}");
+                    Profiler.BeginSample("(COF)[ObjectRepository] Release > RemoveAt");
+                    _cache.RemoveAtFast(i);
+                    Logging.Log(_name, $"Release(#{_cache.Count}): {entry}");
+                    entry.Release(_onRelease);
+                    _pool.Push(entry);
+                    Profiler.EndSample();
+                    break;
                 }
-            }
-            else
-            {
-                Logging.Log(_name, $"Release(total#{_cache.Count}): <color=red>Already released: {obj}</color>");
+
+                Logging.Log(_name, $"Release(#{count}): {entry}");
+                break;
             }
 
             obj = null;
             Profiler.EndSample();
         }
 
-        private void Remove(Entry entry)
-        {
-            if (ReferenceEquals(entry, null)) return;
-
-            Profiler.BeginSample("(COF)[ObjectRepository] Remove");
-            _cache.Remove(entry.hash);
-            _objectKey.Remove(entry.storedObject.GetInstanceID());
-            _pool.Push(entry);
-            entry.reference = 0;
-            Logging.Log(_name, $"<color=#f29e03>Remove</color>(total#{_cache.Count}): {entry}");
-            entry.Release(_onRelease);
-            Profiler.EndSample();
-        }
-
         private class Entry
         {
             public Hash128 hash;
@@ -202,7 +211,7 @@ namespace Coffee.UIParticleInternal
 
             public override string ToString()
             {
-                return $"h{(uint)hash.GetHashCode()} (refs#{reference}), {storedObject}";
+                return $"h{(uint)hash.GetHashCode()} (#{reference}), {storedObject}";
             }
         }
     }

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

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

Packages/src/Runtime/UIParticle.cs

@@ -9,15 +9,12 @@ using UnityEngine.Serialization;
 using Random = UnityEngine.Random;
 
 [assembly: InternalsVisibleTo("Coffee.UIParticle.Editor")]
-[assembly: InternalsVisibleTo("Coffee.UIParticle.PerformanceDemo")]
-[assembly: InternalsVisibleTo("Coffee.UIParticle.Demo")]
 
 namespace Coffee.UIExtensions
 {
     /// <summary>
     /// Render maskable and sortable particle effect ,without Camera, RenderTexture or Canvas.
     /// </summary>
-    [Icon("Packages/com.coffee.ui-particle/Icons/UIParticleIcon.png")]
     [ExecuteAlways]
     [RequireComponent(typeof(RectTransform))]
     [RequireComponent(typeof(CanvasRenderer))]
@@ -61,12 +58,12 @@ namespace Coffee.UIExtensions
         [Obsolete]
         internal bool m_AbsoluteMode;
 
-        [Tooltip("Scale the rendering particles. When the `3D` toggle is enabled, 3D scale (x, y, z) is supported.")]
+        [Tooltip("Particle effect scale")]
         [SerializeField]
         private Vector3 m_Scale3D = new Vector3(1, 1, 1);
 
-        [Tooltip("If you want to update material properties (e.g. _MainTex_ST, _Color) in AnimationClip, " +
-                 "use this to mark as animatable.")]
+        [Tooltip("Animatable material properties.\n" +
+                 "If you want to change the material properties of the ParticleSystem in Animation, enable it.")]
         [SerializeField]
         internal AnimatableProperty[] m_AnimatableProperties = new AnimatableProperty[0];
 
@@ -74,13 +71,12 @@ namespace Coffee.UIExtensions
         [SerializeField]
         private List<ParticleSystem> m_Particles = new List<ParticleSystem>();
 
-        [Tooltip("Particle simulation results are shared within the same group. " +
-                 "A large number of the same effects can be displayed with a small load.\n" +
-                 "None: Disable mesh sharing.\n" +
-                 "Auto: Automatically select Primary/Replica.\n" +
-                 "Primary: Provides particle simulation results to the same group.\n" +
+        [Tooltip("Mesh sharing.\n" +
+                 "None: disable mesh sharing.\n" +
+                 "Auto: automatically select Primary/Replica.\n" +
+                 "Primary: provides particle simulation results to the same group.\n" +
                  "Primary Simulator: Primary, but do not render the particle (simulation only).\n" +
-                 "Replica: Render simulation results provided by the primary.")]
+                 "Replica: render simulation results provided by the primary.")]
         [SerializeField]
         private MeshSharing m_MeshSharing = MeshSharing.None;
 
@@ -92,48 +88,31 @@ namespace Coffee.UIExtensions
         [SerializeField]
         private int m_GroupMaxId;
 
-        [Tooltip("Emission position mode.\n" +
-                 "Relative: The particles will be emitted from the scaled position.\n" +
-                 "Absolute: The particles will be emitted from the world position.")]
+        [Tooltip("Relative: The particles will be emitted from the scaled position of ParticleSystem.\n" +
+                 "Absolute: The particles will be emitted from the world position of ParticleSystem.")]
         [SerializeField]
         private PositionMode m_PositionMode = PositionMode.Relative;
 
         [SerializeField]
+        [Tooltip("Prevent the root-Canvas scale from affecting the hierarchy-scaled ParticleSystem.")]
         [Obsolete]
         internal bool m_AutoScaling;
 
         [SerializeField]
-        [Tooltip(
-            "How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.\n" +
-            "None: Do nothing.\n" +
-            "Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1).\n" +
-            "UIParticle: UIParticle.scale will be adjusted.")]
+        [Tooltip("Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1)." +
+                 "UIParticle: UIParticle.scale will be adjusted.")]
         private AutoScalingMode m_AutoScalingMode = AutoScalingMode.Transform;
 
-        [SerializeField]
-        [Tooltip("Use a custom view.\n" +
-                 "Use this if the particles are not displayed correctly due to min/max particle size.")]
-        private bool m_UseCustomView;
-
-        [SerializeField]
-        [Tooltip("Custom view size.\n" +
-                 "Change the bake view size.")]
-        private float m_CustomViewSize = 10;
-
-        [SerializeField]
-        [Tooltip("Time scale multiplier.")]
-        private float m_TimeScaleMultiplier = 1;
-
         [SerializeField]
         private bool m_Maskable = true;
 
         private readonly List<UIParticleRenderer> _renderers = new List<UIParticleRenderer>();
-        private Camera _bakeCamera;
         private Canvas _canvas;
         private int _groupId;
-        private bool _isScaleStored;
-        private Vector3 _storedScale;
+        private Camera _bakeCamera;
         private DrivenRectTransformTracker _tracker;
+        private Vector3 _storedScale;
+        private bool _isScaleStored;
 
         public RectTransform rectTransform => transform as RectTransform;
 
@@ -169,8 +148,7 @@ namespace Coffee.UIExtensions
         }
 
         /// <summary>
-        /// Particle simulation results are shared within the same group.
-        /// A large number of the same effects can be displayed with a small load.
+        /// Mesh sharing.
         /// None: disable mesh sharing.
         /// Auto: automatically select Primary/Replica.
         /// Primary: provides particle simulation results to the same group.
@@ -213,9 +191,9 @@ namespace Coffee.UIExtensions
         }
 
         /// <summary>
-        /// Emission position mode.
-        /// Relative: The particles will be emitted from the scaled position.
-        /// Absolute: The particles will be emitted from the world position.
+        /// Particle position mode.
+        /// Relative: The particles will be emitted from the scaled position of the ParticleSystem.
+        /// Absolute: The particles will be emitted from the world position of the ParticleSystem.
         /// </summary>
         public PositionMode positionMode
         {
@@ -228,7 +206,6 @@ namespace Coffee.UIExtensions
         /// Relative: The particles will be emitted from the scaled position of the ParticleSystem.
         /// Absolute: The particles will be emitted from the world position of the ParticleSystem.
         /// </summary>
-        [Obsolete("The absoluteMode is now obsolete. Please use the autoScalingMode instead.", false)]
         public bool absoluteMode
         {
             get => m_PositionMode == PositionMode.Absolute;
@@ -246,12 +223,8 @@ namespace Coffee.UIExtensions
         }
 
         /// <summary>
-        /// How to automatically adjust when the Canvas scale is changed by the screen size or reference resolution.
-        /// <para/>
-        /// None: Do nothing.
-        /// <para/>
+        /// Auto scaling mode.
         /// Transform: Transform.lossyScale (=world scale) will be set to (1, 1, 1).
-        /// <para/>
         /// UIParticle: UIParticle.scale will be adjusted.
         /// </summary>
         public AutoScalingMode autoScalingMode
@@ -270,35 +243,6 @@ namespace Coffee.UIExtensions
             }
         }
 
-        /// <summary>
-        /// Use a custom view.
-        /// Use this if the particles are not displayed correctly due to min/max particle size.
-        /// </summary>
-        public bool useCustomView
-        {
-            get => m_UseCustomView;
-            set => m_UseCustomView = value;
-        }
-
-        /// <summary>
-        /// Custom view size.
-        /// Change the bake view size.
-        /// </summary>
-        public float customViewSize
-        {
-            get => m_CustomViewSize;
-            set => m_CustomViewSize = Mathf.Max(0.1f, value);
-        }
-
-        /// <summary>
-        /// Time scale multiplier.
-        /// </summary>
-        public float timeScaleMultiplier
-        {
-            get => m_TimeScaleMultiplier;
-            set => m_TimeScaleMultiplier = value;
-        }
-
         internal bool useMeshSharing => m_MeshSharing != MeshSharing.None;
 
         internal bool isPrimary =>
@@ -344,6 +288,22 @@ namespace Coffee.UIExtensions
 
         public List<ParticleSystem> particles => m_Particles;
 
+        /// <summary>
+        /// Get all base materials to render.
+        /// </summary>
+        public IEnumerable<Material> materials
+        {
+            get
+            {
+                for (var i = 0; i < _renderers.Count; i++)
+                {
+                    var r = _renderers[i];
+                    if (!r || !r.material) continue;
+                    yield return r.material;
+                }
+            }
+        }
+
         /// <summary>
         /// Paused.
         /// </summary>
@@ -502,21 +462,6 @@ namespace Coffee.UIExtensions
             isPaused = true;
         }
 
-        /// <summary>
-        /// Get all base materials to render.
-        /// </summary>
-        public void GetMaterials(List<Material> result)
-        {
-            if (result == null) return;
-
-            for (var i = 0; i < _renderers.Count; i++)
-            {
-                var r = _renderers[i];
-                if (!r || !r.material) continue;
-                result.Add(r.material);
-            }
-        }
-
         /// <summary>
         /// Refresh UIParticle using the ParticleSystem instance.
         /// </summary>
@@ -536,9 +481,6 @@ namespace Coffee.UIExtensions
             for (var i = 0; i < childCount; i++)
             {
                 var go = transform.GetChild(i).gameObject;
-                if (go.TryGetComponent<Camera>(out var cam) && cam == _bakeCamera) continue;
-                if (go.TryGetComponent<UIParticleRenderer>(out var _)) continue;
-
                 go.SetActive(false);
                 if (destroyOldParticles)
                 {
@@ -633,14 +575,12 @@ namespace Coffee.UIExtensions
             {
                 var ps = particleSystems[i];
                 if (!ps) continue;
-
-                var mainEmitter = ps.GetMainEmitter(particleSystems);
-                GetRenderer(j++).Set(this, ps, false, mainEmitter);
+                GetRenderer(j++).Set(this, ps, false);
 
                 // If the trail is enabled, set it additionally.
                 if (ps.trails.enabled)
                 {
-                    GetRenderer(j++).Set(this, ps, true, mainEmitter);
+                    GetRenderer(j++).Set(this, ps, true);
                 }
             }
         }
@@ -662,12 +602,8 @@ namespace Coffee.UIExtensions
             }
 
             var currentScale = transform.localScale;
-            if (!_isScaleStored)
-            {
-                _storedScale = currentScale.IsVisible() ? currentScale : Vector3.one;
-                _isScaleStored = true;
-            }
-
+            _storedScale = currentScale;
+            _isScaleStored = true;
             _tracker.Add(this, rectTransform, DrivenTransformProperties.Scale);
             var newScale = parentScale.Inverse();
             if (currentScale != newScale)
@@ -735,16 +671,7 @@ namespace Coffee.UIExtensions
         private Camera GetBakeCamera()
         {
             if (!canvas) return Camera.main;
-            if (!useCustomView && canvas.renderMode != RenderMode.ScreenSpaceOverlay && canvas.rootCanvas.worldCamera)
-            {
-                return canvas.rootCanvas.worldCamera;
-            }
-
-            if (_bakeCamera)
-            {
-                _bakeCamera.orthographicSize = useCustomView ? customViewSize : 10;
-                return _bakeCamera;
-            }
+            if (_bakeCamera) return _bakeCamera;
 
             // Find existing baking camera.
             var childCount = transform.childCount;
@@ -761,7 +688,11 @@ 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>();
@@ -769,7 +700,7 @@ namespace Coffee.UIExtensions
 
             // Setup baking camera.
             _bakeCamera.enabled = false;
-            _bakeCamera.orthographicSize = useCustomView ? customViewSize : 10;
+            _bakeCamera.orthographicSize = 1000;
             _bakeCamera.transform.SetPositionAndRotation(new Vector3(0, 0, -1000), Quaternion.identity);
             _bakeCamera.orthographic = true;
             _bakeCamera.farClipPlane = 2000f;
@@ -780,9 +711,6 @@ namespace Coffee.UIExtensions
             _bakeCamera.renderingPath = RenderingPath.Forward;
             _bakeCamera.useOcclusionCulling = false;
 
-            _bakeCamera.gameObject.SetActive(false);
-            _bakeCamera.gameObject.hideFlags = UIParticleProjectSettings.globalHideFlags;
-
             return _bakeCamera;
         }
     }

Packages/src/Runtime/UIParticle.cs.meta

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

Packages/src/Runtime/UIParticleAttractor.cs

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

Packages/src/Runtime/UIParticleAttractor.cs.meta

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

Packages/src/Runtime/UIParticleProjectSettings.cs

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

Packages/src/Runtime/UIParticleProjectSettings.cs.meta

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

Packages/src/Runtime/UIParticleRenderer.cs

@@ -4,6 +4,7 @@
 #elif UNITY_2022_3_OR_NEWER
 #define PS_BAKE_API_V2
 #endif
+
 using System;
 using System.Collections.Generic;
 using Coffee.UIParticleInternal;
@@ -15,7 +16,6 @@ using UnityEngine.UI;
 
 namespace Coffee.UIExtensions
 {
-    [Icon("Packages/com.coffee.ui-particle/Icons/UIParticleIcon.png")]
     [ExecuteAlways]
     [RequireComponent(typeof(RectTransform))]
     [RequireComponent(typeof(CanvasRenderer))]
@@ -25,10 +25,10 @@ namespace Coffee.UIExtensions
         private static readonly CombineInstance[] s_CombineInstances = { new CombineInstance() };
         private static readonly List<Material> s_Materials = new List<Material>(2);
         private static MaterialPropertyBlock s_Mpb;
+        private static readonly List<UIParticleRenderer> s_Renderers = new List<UIParticleRenderer>(8);
         private static readonly Vector3[] s_Corners = new Vector3[4];
         private bool _delay;
         private int _index;
-        private bool _isPrevStored;
         private bool _isTrail;
         private Bounds _lastBounds;
         private Material _materialForRendering;
@@ -38,10 +38,10 @@ namespace Coffee.UIExtensions
         private float _prevCanvasScale;
         private Vector3 _prevPsPos;
         private Vector3 _prevScale;
+        private bool _isPrevStored;
         private Vector2Int _prevScreenSize;
         private bool _preWarm;
         private ParticleSystemRenderer _renderer;
-        private ParticleSystem _mainEmitter;
 
         public override Texture mainTexture => _isTrail ? null : _particleSystem.GetTextureForSprite();
 
@@ -114,7 +114,6 @@ namespace Coffee.UIExtensions
             _parent = null;
             _particleSystem = null;
             _renderer = null;
-            _mainEmitter = null;
             if (0 <= index)
             {
                 _index = index;
@@ -139,7 +138,6 @@ namespace Coffee.UIExtensions
         {
             base.OnEnable();
 
-            hideFlags = UIParticleProjectSettings.globalHideFlags;
             if (!s_CombineInstances[0].mesh)
             {
                 s_CombineInstances[0].mesh = new Mesh
@@ -164,7 +162,7 @@ namespace Coffee.UIExtensions
             // Create renderer object.
             var go = new GameObject("[generated] UIParticleRenderer", typeof(UIParticleRenderer))
             {
-                hideFlags = UIParticleProjectSettings.globalHideFlags,
+                hideFlags = HideFlags.HideAndDontSave,
                 layer = parent.gameObject.layer
             };
 
@@ -204,6 +202,7 @@ namespace Coffee.UIExtensions
                 return modifiedMaterial;
             }
 
+            //
             var hash = new Hash128(
                 modifiedMaterial ? (uint)modifiedMaterial.GetInstanceID() : 0,
                 texture ? (uint)texture.GetInstanceID() : 0,
@@ -226,7 +225,7 @@ namespace Coffee.UIExtensions
             return _modifiedMaterial;
         }
 
-        public void Set(UIParticle parent, ParticleSystem ps, bool isTrail, ParticleSystem mainEmitter)
+        public void Set(UIParticle parent, ParticleSystem ps, bool isTrail)
         {
             _parent = parent;
             maskable = parent.maskable;
@@ -249,7 +248,10 @@ namespace Coffee.UIExtensions
 
             ps.TryGetComponent(out _renderer);
             _renderer.enabled = false;
+
+            //_emitter = emitter;
             _isTrail = isTrail;
+
             _renderer.GetSharedMaterials(s_Materials);
             material = s_Materials[isTrail ? 1 : 0];
             s_Materials.Clear();
@@ -266,7 +268,6 @@ namespace Coffee.UIExtensions
             _prevScreenSize = new Vector2Int(Screen.width, Screen.height);
             _prevCanvasScale = canvas ? canvas.scaleFactor : 1f;
             _delay = true;
-            _mainEmitter = mainEmitter;
 
             canvasRenderer.SetTexture(null);
 
@@ -304,7 +305,7 @@ namespace Coffee.UIExtensions
 
             // Simulate particles.
             Profiler.BeginSample("[UIParticle] Bake Mesh > Simulate Particles");
-            if (!_isTrail && _parent.canSimulate && !_mainEmitter)
+            if (!_isTrail && _parent.canSimulate)
             {
 #if UNITY_EDITOR
                 if (!Application.isPlaying)
@@ -422,16 +423,17 @@ namespace Coffee.UIExtensions
                     workerMesh.LinearToGamma();
                 }
 
-                var components = InternalListPool<Component>.Rent();
+                var components = ListPool<Component>.Rent();
                 GetComponents(typeof(IMeshModifier), components);
+
+#pragma warning disable CS0618 // Type or member is obsolete
                 for (var i = 0; i < components.Count; i++)
                 {
-#pragma warning disable CS0618 // Type or member is obsolete
                     ((IMeshModifier)components[i]).ModifyMesh(workerMesh);
-#pragma warning restore CS0618 // Type or member is obsolete
                 }
+#pragma warning restore CS0618 // Type or member is obsolete
 
-                InternalListPool<Component>.Return(ref components);
+                ListPool<Component>.Return(ref components);
             }
 
             Profiler.EndSample();
@@ -443,25 +445,22 @@ namespace Coffee.UIExtensions
 
             // Get grouped renderers.
             Profiler.BeginSample("[UIParticleRenderer] Set Mesh");
-            var renderers = InternalListPool<UIParticleRenderer>.Rent();
+            s_Renderers.Clear();
             if (_parent.useMeshSharing)
             {
-                UIParticleUpdater.GetGroupedRenderers(_parent.groupId, _index, renderers);
+                UIParticleUpdater.GetGroupedRenderers(_parent.groupId, _index, s_Renderers);
             }
 
-            for (var i = 0; i < renderers.Count; i++)
+            for (var i = 0; i < s_Renderers.Count; i++)
             {
-                var r = renderers[i];
-                if (r == this) continue;
+                if (s_Renderers[i] == this) continue;
 
-                r.canvasRenderer.SetMesh(workerMesh);
-                r._lastBounds = _lastBounds;
-                r.canvasRenderer.materialCount = 1;
-                r.canvasRenderer.SetMaterial(materialForRendering, 0);
+                s_Renderers[i].canvasRenderer.SetMesh(workerMesh);
+                s_Renderers[i]._lastBounds = _lastBounds;
+                s_Renderers[i].canvasRenderer.materialCount = 1;
+                s_Renderers[i].canvasRenderer.SetMaterial(materialForRendering, 0);
             }
 
-            InternalListPool<UIParticleRenderer>.Return(ref renderers);
-
             if (_parent.canRender)
             {
                 canvasRenderer.SetMesh(workerMesh);
@@ -472,6 +471,8 @@ namespace Coffee.UIExtensions
             }
 
             Profiler.EndSample();
+
+            s_Renderers.Clear();
         }
 
         public override void SetMaterialDirty()
@@ -543,30 +544,6 @@ namespace Coffee.UIExtensions
                     return Matrix4x4.Translate(psPos)
                            * Matrix4x4.Scale(scale);
                 case ParticleSystemSimulationSpace.World:
-                    if (_isTrail)
-                    {
-                        return Matrix4x4.Translate(psPos)
-                               * Matrix4x4.Scale(scale)
-                               * Matrix4x4.Translate(-psPos);
-                    }
-
-                    if (_mainEmitter)
-                    {
-                        if (_mainEmitter.IsLocalSpace())
-                        {
-                            return Matrix4x4.Translate(psPos)
-                                   * Matrix4x4.Scale(scale)
-                                   * Matrix4x4.Translate(-psPos);
-                        }
-                        else
-                        {
-                            psPos = _particleSystem.transform.position - _mainEmitter.transform.position;
-                            return Matrix4x4.Translate(psPos)
-                                   * Matrix4x4.Scale(scale)
-                                   * Matrix4x4.Translate(-psPos);
-                        }
-                    }
-
                     return Matrix4x4.Scale(scale);
                 case ParticleSystemSimulationSpace.Custom:
                     return Matrix4x4.Translate(_particleSystem.main.customSimulationSpace.position.GetScaled(scale))
@@ -629,7 +606,6 @@ namespace Coffee.UIExtensions
                 : main.useUnscaledTime
                     ? Time.unscaledDeltaTime
                     : Time.deltaTime;
-            deltaTime *= _parent.timeScaleMultiplier;
 
             // Pre-warm:
             if (0 < deltaTime && _preWarm)

Packages/src/Runtime/UIParticleUpdater.cs

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

Packages/src/Runtime/Utilities/ParticleSystemExtensions.cs

@@ -171,32 +171,5 @@ namespace Coffee.UIParticleInternal
                 action.Invoke(p);
             }
         }
-
-        public static ParticleSystem GetMainEmitter(this ParticleSystem self, List<ParticleSystem> list)
-        {
-            if (!self || list == null || list.Count == 0) return null;
-
-            for (var i = 0; i < list.Count; i++)
-            {
-                var parent = list[i];
-                if (parent != self && IsSubEmitterOf(self, parent)) return parent;
-            }
-
-            return null;
-        }
-
-        public static bool IsSubEmitterOf(this ParticleSystem self, ParticleSystem parent)
-        {
-            if (!self || !parent) return false;
-
-            var subEmitters = parent.subEmitters;
-            var count = subEmitters.subEmittersCount;
-            for (var i = 0; i < count; i++)
-            {
-                if (subEmitters.GetSubEmitterSystem(i) == self) return true;
-            }
-
-            return false;
-        }
     }
 }

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

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

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

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

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

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

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

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

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

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

Packages/src/Shaders/UIAdditive.shader

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

Packages/src/package.json

@@ -2,8 +2,8 @@
   "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.16",
-  "unity": "2019.3",
+  "version": "5.0.0-preview.2",
+  "unity": "2018.2",
   "license": "MIT",
   "repository": {
     "type": "git",

ProjectSettings/MinimalResourceSettings.json

@@ -1,11 +0,0 @@
-{
-    "MonoBehaviour": {
-        "m_Enabled": true,
-        "m_EditorHideFlags": 0,
-        "m_Name": "",
-        "m_EditorClassIdentifier": "",
-        "m_OutputDllPaths": [
-            "Packages/com.coffee.ui-particle/Runtime/Coffee.UIParticle.R.dll"
-        ]
-    }
-}

ProjectSettings/ProjectSettings.asset

@@ -124,7 +124,7 @@ PlayerSettings:
   bundleVersion: 1.0
   preloadedAssets:
   - {fileID: 11400000, guid: 86087a0847f384b538391745dad4565c, type: 2}
-  - {fileID: 11400000, guid: 4b9df7b8a4193489299b8f477348ae0c, type: 2}
+  - {fileID: 11400000, guid: be3e05903ef7041d39b3ef8ecdd47f08, type: 2}
   metroInputSource: 0
   wsaTransparentSwapchain: 0
   m_HolographicPauseOnTrackingLoss: 1
@@ -520,7 +520,7 @@ PlayerSettings:
   webGLTemplate: APPLICATION:Default
   webGLAnalyzeBuildSize: 0
   webGLUseEmbeddedResources: 0
-  webGLCompressionFormat: 2
+  webGLCompressionFormat: 1
   webGLLinkerTarget: 0
   webGLThreadsSupport: 0
   scriptingDefineSymbols: