chore(release): 4.1.7 [skip ci]

## [4.1.7](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.6...4.1.7) (2022-08-30)

### Bug Fixes

* the annoying empty black scene overlay box shown even when nothing is selected ([bdeeabb](bdeeabbbe1))

CHANGELOG.md

@@ -1,3 +1,42 @@
+## [4.1.7](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.6...4.1.7) (2022-08-30)
+
+
+### Bug Fixes
+
+* the annoying empty black scene overlay box shown even when nothing is selected ([bdeeabb](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/bdeeabbbe140b0ba80fac7ac477874c2467d3a16))
+
+## [4.1.6](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.5...4.1.6) (2022-08-10)
+
+
+### Bug Fixes
+
+* fix abnormal mesh bounds error ([f60d6df](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/f60d6dfe6030ac89527a4265e414e9a0a20d56db)), closes [#213](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/213) [#218](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/218)
+
+## [4.1.5](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.4...4.1.5) (2022-08-10)
+
+
+### Bug Fixes
+
+* fix culling for RectMask2D ([9e2dbe7](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/9e2dbe7758eb28a4f6a7c11113d9169847880f96)), closes [#220](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/220)
+
+## [4.1.4](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.3...4.1.4) (2022-07-01)
+
+
+### Bug Fixes
+
+* add `Enabled` toggle in overlay window ([f97e619](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/f97e6195e62b5acfa8f3e97bfe3bc4a7dcadf38a))
+* if `m_Particles` contains null, an error will occur ([550d0c4](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/550d0c43be35cd07e390ffd5749557c89fee0332)), closes [#214](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/214)
+* ParticleSystem reordering and refreshing in inspector does not work for prefab asset ([7eb4112](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/7eb41124db06ea794db76788b35ce82a0af2c402))
+* refresh button does not works in prefab edit mode ([c1538a8](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/c1538a83998608a30dc90944b05f8b75e165cf05)), closes [#214](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/214)
+* when `UIParticlrRenderer` destroy manually, an error will occur ([a11d2d0](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/a11d2d01ce5f67e3f430bcb0bfdee1ad9abf7cfe))
+
+## [4.1.3](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.2...4.1.3) (2022-06-28)
+
+
+### Bug Fixes
+
+* error on drag prefab to scene ([fa2f867](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/fa2f867bcaff437bb9420da1abcef970cdb09ade)), closes [#211](https://github.com/mob-sakai/ParticleEffectForUGUI/issues/211)
+
 ## [4.1.2](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/4.1.1...4.1.2) (2022-06-27)
 
 

README.md

@@ -195,9 +195,10 @@ NOTE: Press `Refresh` button to reconstruct rendering order based on children Pa
 
 <br><br>
 
-### With `Mask` or `MaskRect2D` component
+### With `Mask` or `RectMask2D` component
 
 If you want to mask particles, set a stencil supported shader (such as `UI/UIAdditive`) to material for ParticleSystem.
+If you use some custom shaders, see [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)
 
@@ -263,6 +264,99 @@ When improving performance, keep the following in mind:
 - If you are using multiple materials, you will have more draw calls.
   - Consider single material, atlasing the sprites, and using `Sprite` mode in the `Texture Sheet Animation` module in ParticleSystem.
 
+### How to make a custom shader to support Mask/RectMask2D component
+
+<details>
+<summary>Shader tips</summary>
+
+```ShaderLab
+Shader "Your/Custom/Shader"
+{
+    Properties
+    {
+        // ...
+        // #### required for Mask ####
+        _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
+        {
+            // ...
+        }
+
+        // #### required for Mask ####
+        Stencil
+        {
+            Ref [_Stencil]
+            Comp [_StencilComp]
+            Pass [_StencilOp]
+            ReadMask [_StencilReadMask]
+            WriteMask [_StencilWriteMask]
+        }
+        ColorMask [_ColorMask]
+        // ...
+
+        Pass
+        {
+            // ...
+            // #### required for RectMask2D ####
+            #include "UnityUI.cginc"
+            #pragma multi_compile __ UNITY_UI_CLIP_RECT
+            float4 _ClipRect;
+
+            // #### required for Mask ####
+            #pragma multi_compile __ UNITY_UI_ALPHACLIP
+
+            struct appdata_t
+            {
+                // ...
+            };
+
+            struct v2f
+            {
+                // ...
+                // #### required for RectMask2D ####
+                float4 worldPosition    : TEXCOORD1;
+            };
+            
+            v2f vert(appdata_t v)
+            {
+                v2f OUT;
+                // ...
+                // #### required for RectMask2D ####
+                OUT.worldPosition = v.vertex;
+                return OUT;
+            }
+
+            fixed4 frag(v2f IN) : SV_Target
+            {
+                // ...
+                // #### required for RectMask2D ####
+                #ifdef UNITY_UI_CLIP_RECT
+                    color.a *= UnityGet2DClipping(IN.worldPosition.xy, _ClipRect);
+                #endif
+
+                // #### required for Mask ####
+                #ifdef UNITY_UI_ALPHACLIP
+                    clip (color.a - 0.001);
+                #endif
+
+                return color;
+            }
+            ENDCG
+        }
+    }
+}
+```
+</details>
 
 
 <br><br><br><br>

Scripts/Editor/UIParticleEditor.cs

@@ -102,7 +102,7 @@ namespace Coffee.UIExtensions
 #endif
 
 #if UNITY_2019_1_OR_NEWER
-            SceneView.duringSceneGui += _ => miSceneViewOverlayWindow.Invoke(null, sceneViewArgs);
+            SceneView.duringSceneGui += _ => { if (s_SerializedObject != null) miSceneViewOverlayWindow.Invoke(null, sceneViewArgs); };
 #else
             SceneView.onSceneGUIDelegate += _ =>
 #endif
@@ -120,15 +120,15 @@ namespace Coffee.UIExtensions
                         .Select(x => x.GetComponent<ParticleSystem>())
                         .Where(x => x)
                         .Select(x => x.GetComponentInParent<UIParticle>())
-                        .Where(x => x)
+                        .Where(x => x && x.canvas)
                         .Concat(
                             Selection.gameObjects
                                 .Select(x => x.GetComponent<UIParticle>())
-                                .Where(x => x)
+                                .Where(x => x && x.canvas)
                         )
                         .Distinct()
                         .ToArray();
-                return uiParticles.Any() ? new SerializedObject(uiParticles) : null;
+                return 0 < uiParticles.Length ? new SerializedObject(uiParticles) : null;
             };
 
             s_SerializedObject = createSerializeObject();
@@ -155,9 +155,9 @@ namespace Coffee.UIExtensions
 
             var sp = serializedObject.FindProperty("m_Particles");
             _ro = new ReorderableList(sp.serializedObject, sp, true, true, true, true);
-            _ro.elementHeight = EditorGUIUtility.singleLineHeight * 3 + 4;
+            _ro.elementHeight = (EditorGUIUtility.singleLineHeight * 3) + 4;
             _ro.elementHeightCallback = _ => 3 * (EditorGUIUtility.singleLineHeight + 2);
-            _ro.drawElementCallback = (rect, index, active, focused) =>
+            _ro.drawElementCallback = (rect, index, _, __) =>
             {
                 EditorGUI.BeginDisabledGroup(sp.hasMultipleDifferentValues);
                 rect.y += 1;
@@ -175,7 +175,7 @@ namespace Coffee.UIExtensions
                 rect.y += rect.height + 1;
                 MaterialField(rect, s_ContentTrailMaterial, materials, 1);
                 EditorGUI.EndDisabledGroup();
-                if (materials != null)
+                if (materials != null && materials.serializedObject.hasModifiedProperties)
                 {
                     materials.serializedObject.ApplyModifiedProperties();
                 }
@@ -192,16 +192,10 @@ namespace Coffee.UIExtensions
                     foreach (UIParticle t in targets)
                     {
                         t.RefreshParticles();
+                        EditorUtility.SetDirty(t);
                     }
                 }
             };
-            _ro.onReorderCallback = _ =>
-            {
-                foreach (UIParticle t in targets)
-                {
-                    t.RefreshParticles(t.particles);
-                }
-            };
 
             // On select UIParticle, refresh particles.
             foreach (UIParticle t in targets)
@@ -231,7 +225,7 @@ namespace Coffee.UIExtensions
         public override void OnInspectorGUI()
         {
             var current = target as UIParticle;
-            if (current == null) return;
+            if (!current) return;
 
             serializedObject.Update();
 
@@ -269,9 +263,18 @@ namespace Coffee.UIExtensions
             EditorGUILayout.PropertyField(m_AbsoluteMode);
 
             // Target ParticleSystems.
+            EditorGUI.BeginChangeCheck();
+            EditorGUI.BeginDisabledGroup(targets.OfType<UIParticle>().Any(x => !x.canvas));
             _ro.DoLayoutList();
-
+            EditorGUI.EndDisabledGroup();
             serializedObject.ApplyModifiedProperties();
+            if (EditorGUI.EndChangeCheck())
+            {
+                foreach (var uip in targets.OfType<UIParticle>())
+                {
+                    uip.RefreshParticles(uip.particles);
+                }
+            }
 
             // Does the shader support UI masks?
             if (current.maskable && current.GetComponentInParent<Mask>())
@@ -319,7 +322,7 @@ namespace Coffee.UIExtensions
                 // Check to use 'TEXCOORD*.zw' components as custom vertex stream.
                 foreach (var psr in allPsRenderers)
                 {
-                    if (new SerializedObject(psr).FindProperty("m_UseCustomVertexStreams").boolValue == false) continue;
+                    if (!new SerializedObject(psr).FindProperty("m_UseCustomVertexStreams").boolValue) continue;
                     if (psr.activeVertexStreamsCount == 0) continue;
                     psr.GetActiveVertexStreams(s_Streams);
 
@@ -427,13 +430,14 @@ namespace Coffee.UIExtensions
         {
             try
             {
-                if (s_SerializedObject.targetObjects.Any(x => !x)) return;
+                if (s_SerializedObject.targetObjects.OfType<UIParticle>().Any(x => !x || !x.canvas)) return;
 
                 s_SerializedObject.Update();
                 using (new EditorGUILayout.VerticalScope(GUILayout.Width(220f)))
                 {
                     var labelWidth = EditorGUIUtility.labelWidth;
                     EditorGUIUtility.labelWidth = 100;
+                    EditorGUILayout.PropertyField(s_SerializedObject.FindProperty("m_Enabled"));
                     _xyzMode = DrawFloatOrVector3Field(s_SerializedObject.FindProperty("m_Scale3D"), _xyzMode);
                     EditorGUILayout.PropertyField(s_SerializedObject.FindProperty("m_AbsoluteMode"));
                     EditorGUIUtility.labelWidth = labelWidth;

Scripts/UIParticle.cs

@@ -2,6 +2,7 @@
 #define SERIALIZE_FIELD_MASKABLE
 #endif
 using System.Collections.Generic;
+using System.Linq;
 using System.Runtime.CompilerServices;
 using Coffee.UIParticleExtensions;
 using UnityEngine;
@@ -290,6 +291,7 @@ namespace Coffee.UIExtensions
             var j = 0;
             for (var i = 0; i < particles.Count; i++)
             {
+                if (!particles[i]) continue;
                 GetRenderer(j++).Set(this, particles[i], false);
                 if (particles[i].trails.enabled)
                 {
@@ -321,9 +323,15 @@ namespace Coffee.UIExtensions
         {
             if (!isActiveAndEnabled) return;
 
+            if (m_Renderers.Any(x => !x))
+            {
+                RefreshParticles(particles);
+            }
+
             var bakeCamera = GetBakeCamera();
             for (var i = 0; i < m_Renderers.Count; i++)
             {
+                if (!m_Renderers[i]) continue;
                 m_Renderers[i].UpdateMesh(bakeCamera);
             }
         }
@@ -332,6 +340,7 @@ namespace Coffee.UIExtensions
         {
             for (var i = 0; i < m_Renderers.Count; i++)
             {
+                if (!m_Renderers[i]) continue;
                 m_Renderers[i].UpdateParticleCount();
             }
         }
@@ -417,6 +426,10 @@ namespace Coffee.UIExtensions
             {
                 m_Renderers.Add(UIParticleRenderer.AddRenderer(this, index));
             }
+            if (!m_Renderers[index])
+            {
+                m_Renderers[index] = UIParticleRenderer.AddRenderer(this, index);
+            }
             return m_Renderers[index];
         }
 

Scripts/UIParticleRenderer.cs

@@ -14,15 +14,14 @@ namespace Coffee.UIExtensions
     internal class UIParticleRenderer : MaskableGraphic
     {
         private static readonly CombineInstance[] s_CombineInstances = new CombineInstance[] { new CombineInstance() };
-        //private static ParticleSystem.Particle[] s_Particles = new ParticleSystem.Particle[2048];
         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>();
+        private static readonly Vector3[] s_Corners = new Vector3[4];
 
         private ParticleSystemRenderer _renderer;
         private ParticleSystem _particleSystem;
-        internal int _prevParticleCount = 0;
-        //private ParticleSystem _emitter;
+        private int _prevParticleCount = 0;
         private UIParticle _parent;
         private int _index;
         private bool _isTrail;
@@ -33,6 +32,7 @@ namespace Coffee.UIExtensions
         private bool _delay = false;
         private bool _prewarm = false;
         private Material _currentMaterialForRendering;
+        private Bounds _lastBounds;
 
         public override Texture mainTexture
         {
@@ -49,6 +49,37 @@ namespace Coffee.UIExtensions
                 return false;
             }
         }
+        
+        private Rect rootCanvasRect
+        {
+            get
+            {
+                s_Corners[0] = transform.TransformPoint(_lastBounds.min.x, _lastBounds.min.y, 0);
+                s_Corners[1] = transform.TransformPoint(_lastBounds.min.x, _lastBounds.max.y, 0);
+                s_Corners[2] = transform.TransformPoint(_lastBounds.max.x, _lastBounds.max.y, 0);
+                s_Corners[3] = transform.TransformPoint(_lastBounds.max.x, _lastBounds.min.y, 0);
+                if (canvas)
+                {
+                    var worldToLocalMatrix = canvas.rootCanvas.transform.worldToLocalMatrix;
+                    for (var i = 0; i < 4; ++i)
+                        s_Corners[i] = worldToLocalMatrix.MultiplyPoint(s_Corners[i]);
+                }
+                var corner1 = (Vector2) s_Corners[0];
+                var corner2 = (Vector2) s_Corners[0];
+                for (var i = 1; i < 4; ++i)
+                {
+                    if (s_Corners[i].x < corner1.x)
+                        corner1.x = s_Corners[i].x;
+                    else if (s_Corners[i].x > corner2.x)
+                        corner2.x = s_Corners[i].x;
+                    if (s_Corners[i].y < corner1.y)
+                        corner1.y = s_Corners[i].y;
+                    else if (s_Corners[i].y > corner2.y)
+                        corner2.y = s_Corners[i].y;
+                }
+                return new Rect(corner1, corner2 - corner1);
+            }
+        }
 
         public static UIParticleRenderer AddRenderer(UIParticle parent, int index)
         {
@@ -123,6 +154,7 @@ namespace Coffee.UIExtensions
                 material = null;
                 workerMesh.Clear();
                 canvasRenderer.SetMesh(workerMesh);
+                _lastBounds = new Bounds();
                 enabled = false;
             }
         }
@@ -188,6 +220,7 @@ namespace Coffee.UIExtensions
                 Profiler.BeginSample("[UIParticleRenderer] Clear Mesh");
                 workerMesh.Clear();
                 canvasRenderer.SetMesh(workerMesh);
+                _lastBounds = new Bounds();
                 Profiler.EndSample();
 
                 return;
@@ -241,7 +274,7 @@ namespace Coffee.UIExtensions
             }
             else
             {
-                s_CombineInstances[0].mesh.Clear();
+                s_CombineInstances[0].mesh.Clear(false);
             }
             Profiler.EndSample();
 
@@ -269,6 +302,7 @@ namespace Coffee.UIExtensions
                 extents.z = 0;
                 bounds.extents = extents;
                 workerMesh.bounds = bounds;
+                _lastBounds = bounds;
             }
             Profiler.EndSample();
 
@@ -286,6 +320,7 @@ namespace Coffee.UIExtensions
             {
                 if (s_Renderers[i] == this) continue;
                 s_Renderers[i].canvasRenderer.SetMesh(workerMesh);
+                s_Renderers[i]._lastBounds = _lastBounds;
             }
 
             if (!_parent.canRender)
@@ -353,6 +388,17 @@ namespace Coffee.UIExtensions
         protected override void UpdateGeometry()
         {
         }
+        
+        public override void Cull(Rect clipRect, bool validRect)
+        {
+            var cull = _lastBounds.extents == Vector3.zero || !validRect || !clipRect.Overlaps(rootCanvasRect, true);
+            if (canvasRenderer.cull == cull) return;
+            
+            canvasRenderer.cull = cull;
+            UISystemProfilerApi.AddMarker("MaskableGraphic.cullingChanged", this);
+            onCullStateChanged.Invoke(cull);
+            OnCullingChanged();
+        }
 
         private Vector3 GetWorldScale()
         {

Scripts/UIParticleUpdater.cs

@@ -62,7 +62,7 @@ namespace Coffee.UIExtensions
             for (var i = 0; i < s_ActiveParticles.Count; i++)
             {
                 var uip = s_ActiveParticles[i];
-                if (!uip.isPrimary || s_UpdatedGroupIds.Contains(uip.groupId)) continue;
+                if (!uip || !uip.canvas || !uip.isPrimary || s_UpdatedGroupIds.Contains(uip.groupId)) continue;
 
                 s_UpdatedGroupIds.Add(uip.groupId);
                 uip.UpdateTransformScale();
@@ -73,6 +73,8 @@ namespace Coffee.UIExtensions
             for (var i = 0; i < s_ActiveParticles.Count; i++)
             {
                 var uip = s_ActiveParticles[i];
+                if (!uip || !uip.canvas) continue;
+
                 uip.UpdateTransformScale();
 
                 if (!uip.useMeshSharing)
@@ -97,7 +99,10 @@ namespace Coffee.UIExtensions
             // UpdateParticleCount.
             for (var i = 0; i < s_ActiveParticles.Count; i++)
             {
-                s_ActiveParticles[i].UpdateParticleCount();
+                var uip = s_ActiveParticles[i];
+                if (!uip || !uip.canvas) continue;
+
+                uip.UpdateParticleCount();
             }
         }
 

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": "4.1.2",
+  "version": "4.1.7",
   "unity": "2018.2",
   "license": "MIT",
   "repository": {