chore(release): 4.5.1 [skip ci]

## [4.5.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.5.0...4.5.1) (2023-12-23)

### Bug Fixes

* fix material for mesh sharing group ([6126af9](6126af9f37))
* the changes made to the material used by the ParticleSystem are not immediately reflected ([3184ba9](3184ba94ae)), closes [#280](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/280)

CHANGELOG.md

@@ -1,3 +1,25 @@
+## [4.5.1](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.5.0...4.5.1) (2023-12-23)
+
+
+### Bug Fixes
+
+* fix material for mesh sharing group ([6126af9](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/6126af9f376dd4c100a1b9d19d9499bdef7d5566))
+* the changes made to the material used by the ParticleSystem are not immediately reflected ([3184ba9](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/3184ba94ae08264223c0c71443ad70acc1a1ccb2)), closes [#280](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/280)
+
+# [4.5.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.4.0...4.5.0) (2023-12-23)
+
+
+### Bug Fixes
+
+* incorrect rendering of world-space simulated particles while animating scale ([ac58475](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/ac584755393d87bda2e80d9653370b7e4c68912f)), closes [#285](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/285)
+* remove obsolete warning ([5d5eb34](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/5d5eb34590b7cefb0e4ac26c0441e104176ce522))
+
+
+### Features
+
+* Automatically generated objects are no longer editable (NotEditable). ([5607dc4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/5607dc4eed0c086b4651941953df6c7d535712e0))
+* support IMeshModifier ([5c3232f](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/5c3232faf3d2cfad1e3e1a9349b8346c7982a608)), closes [#282](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/282)
+
 # [4.4.0](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.3.0...4.4.0) (2023-11-08)
 
 

README.md

@@ -286,13 +286,13 @@ UIParticle does not support all built-in shaders except for `UI/Default`.
 If their use is detected, an error is displayed in the inspector.  
 Use UI shaders instead.
 
-#### UV.zw components will be discarded
+#### (2019.4 or earlier) UV.zw components will be discarded
 
 UIParticleRenderer renders the particles based on UIVertex.  
 Therefore, only xy components is available for each UV in the shader. (zw components will be discarded).  
 So unfortunately UIParticles will not work well with some shaders.  
 
-#### Custom vertex streams
+#### (2019.4 or earlier) Custom vertex streams
 
 When using custom vertex streams, you can fill zw components with "unnecessary" data.  
 https://github.com/mob-sakai/ParticleEffectForUGUI/issues/191

Scripts/ModifiedMaterial.cs

@@ -7,13 +7,13 @@ namespace Coffee.UIParticleExtensions
     {
         private static readonly List<MatEntry> s_Entries = new List<MatEntry>();
 
-        public static Material Add(Material baseMat, Texture texture, int id)
+        public static Material Add(Material baseMat, Texture texture, int id, int props)
         {
             MatEntry e;
             for (var i = 0; i < s_Entries.Count; i++)
             {
                 e = s_Entries[i];
-                if (e.baseMat != baseMat || e.texture != texture || e.id != id) continue;
+                if (e.baseMat != baseMat || e.texture != texture || e.id != id || e.props != props) continue;
                 ++e.count;
                 return e.customMat;
             }
@@ -24,6 +24,7 @@ namespace Coffee.UIParticleExtensions
                 baseMat = baseMat,
                 texture = texture,
                 id = id,
+                props = props,
                 customMat = new Material(baseMat)
                 {
                     name = $"{baseMat.name}_{id}",
@@ -64,6 +65,7 @@ namespace Coffee.UIParticleExtensions
             public int count;
             public Material customMat;
             public int id;
+            public int props;
             public Texture texture;
         }
     }

Scripts/UIParticle.cs

@@ -647,7 +647,7 @@ namespace Coffee.UIExtensions
                 // Create ortho-camera.
                 if (!_orthoCamera)
                 {
-                    var go = new GameObject("[generated] UIParticleOverlayCamera") { hideFlags = HideFlags.DontSave };
+                    var go = new GameObject("[generated] UIParticleOverlayCamera") { hideFlags = HideFlags.DontSave | HideFlags.NotEditable };
                     go.SetActive(false);
                     go.transform.SetParent(transform, false);
                     _orthoCamera = go.AddComponent<Camera>();
@@ -667,7 +667,9 @@ namespace Coffee.UIExtensions
 
         private void UpdateTracker()
         {
+#pragma warning disable CS0618 // Type or member is obsolete
             if (!enabled || !autoScaling || autoScalingMode != AutoScalingMode.Transform)
+#pragma warning restore CS0618 // Type or member is obsolete
             {
                 _tracker.Clear();
             }

Scripts/UIParticleRenderer.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Coffee.UIParticleExtensions;
+using UnityEditor;
 using UnityEngine;
 using UnityEngine.Profiling;
 using UnityEngine.Rendering;
@@ -14,6 +15,7 @@ namespace Coffee.UIExtensions
     [AddComponentMenu("")]
     internal class UIParticleRenderer : MaskableGraphic
     {
+        private static readonly List<Component> s_Components = new List<Component>();
         private static readonly CombineInstance[] s_CombineInstances = { new CombineInstance() };
         private static readonly List<Material> s_Materials = new List<Material>(2);
         private static MaterialPropertyBlock s_Mpb;
@@ -32,6 +34,7 @@ namespace Coffee.UIExtensions
         private Vector3 _prevPsPos;
         private Vector3 _prevScale;
         private Vector2Int _prevScreenSize;
+        private float _prevCanvasScale;
         private bool _prewarm;
         private ParticleSystemRenderer _renderer;
 
@@ -152,7 +155,7 @@ namespace Coffee.UIExtensions
             // Create renderer object.
             var go = new GameObject("[generated] UIParticleRenderer", typeof(UIParticleRenderer))
             {
-                hideFlags = HideFlags.DontSave,
+                hideFlags = HideFlags.DontSave | HideFlags.NotEditable,
                 layer = parent.gameObject.layer
             };
 
@@ -198,7 +201,12 @@ namespace Coffee.UIExtensions
 
             //
             var id = _parent.m_AnimatableProperties.Length == 0 ? 0 : GetInstanceID();
-            modifiedMaterial = ModifiedMaterial.Add(modifiedMaterial, texture, id);
+#if UNITY_EDITOR
+            var props = EditorJsonUtility.ToJson(modifiedMaterial).GetHashCode();
+#else
+            var props = 0;
+#endif
+            modifiedMaterial = ModifiedMaterial.Add(modifiedMaterial, texture, id, props);
             ModifiedMaterial.Remove(_modifiedMaterial);
             _modifiedMaterial = modifiedMaterial;
 
@@ -246,6 +254,7 @@ namespace Coffee.UIExtensions
             _prevScale = GetWorldScale();
             _prevPsPos = _particleSystem.transform.position;
             _prevScreenSize = new Vector2Int(Screen.width, Screen.height);
+            _prevCanvasScale = canvas ? canvas.scaleFactor : 1f;
             _delay = true;
             _prevParticleCount = 0;
 
@@ -399,6 +408,16 @@ namespace Coffee.UIExtensions
                     workerMesh.SetColors(s_Colors);
                     Profiler.EndSample();
                 }
+
+                GetComponents(typeof(IMeshModifier), s_Components);
+                for (var i = 0; i < s_Components.Count; i++)
+                {
+#pragma warning disable CS0618 // Type or member is obsolete
+                    ((IMeshModifier)s_Components[i]).ModifyMesh(workerMesh);
+#pragma warning restore CS0618 // Type or member is obsolete
+                }
+
+                s_Components.Clear();
             }
 
             Profiler.EndSample();
@@ -430,8 +449,19 @@ namespace Coffee.UIExtensions
 
             // Update animatable material properties.
             Profiler.BeginSample("[UIParticleRenderer] Update Animatable Material Properties");
+
+#if UNITY_EDITOR
+            if (_modifiedMaterial != material)
+            {
+                _renderer.GetSharedMaterials(s_Materials);
+                material = s_Materials[_isTrail ? 1 : 0];
+                s_Materials.Clear();
+                SetMaterialDirty();
+            }
+#endif
+            
             UpdateMaterialProperties();
-            if (!_parent.useMeshSharing)
+            if (_parent.useMeshSharing)
             {
                 if (!_currentMaterialForRendering)
                 {
@@ -534,7 +564,8 @@ namespace Coffee.UIExtensions
         {
             var screenSize = new Vector2Int(Screen.width, Screen.height);
             var isWorldSpace = _particleSystem.IsWorldSpace();
-            var resolutionChanged = _prevScreenSize != screenSize || _prevScale != scale;
+            var canvasScale = _parent.canvas ? _parent.canvas.scaleFactor : 1f;
+            var resolutionChanged = _prevScreenSize != screenSize || _prevCanvasScale != canvasScale;
             if (resolutionChanged && isWorldSpace)
             {
                 // Update particle array size and get particles.
@@ -563,6 +594,7 @@ namespace Coffee.UIExtensions
                 _prevPsPos = psPos;
             }
 
+            _prevCanvasScale = canvas ? canvas.scaleFactor : 1f;
             _prevScreenSize = screenSize;
         }
 

package.json

@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This plugin provide a component to render particle effect for uGUI.\nThe particle rendering is maskable and sortable, without Camera, RenderTexture or Canvas.",
-  "version": "4.4.0",
+  "version": "4.5.1",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {