diff --git a/CHANGELOG.md b/CHANGELOG.md
index 10012822..c9a2e1cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# [4.0.0-preview.9](https://github.com/mob-sakai/UIEffect/compare/v4.0.0-preview.8...v4.0.0-preview.9) (2020-06-09)
+
+
+### Features
+
+* add a new property to access EffectPlayer at runtime ([d92efa9](https://github.com/mob-sakai/UIEffect/commit/d92efa98a1fc7b78d3421d9ee0b4bdaa74511bdc)), closes [#214](https://github.com/mob-sakai/UIEffect/issues/214) [#215](https://github.com/mob-sakai/UIEffect/issues/215)
+
 # [4.0.0-preview.8](https://github.com/mob-sakai/UIEffect/compare/v4.0.0-preview.7...v4.0.0-preview.8) (2020-06-04)
 
 
diff --git a/Resources/UIDissolve.shader b/Resources/UIDissolve.shader
index f540e995..1f48a1de 100644
--- a/Resources/UIDissolve.shader
+++ b/Resources/UIDissolve.shader
@@ -1,4 +1,4 @@
-Shader "Hidden/UIDissolve"
+Shader "Hidden/UI/Default (UIDissolve)"
 {
 	Properties
 	{
diff --git a/Resources/UIEffect.shader b/Resources/UIEffect.shader
index c40ae9c8..3397a0f5 100644
--- a/Resources/UIEffect.shader
+++ b/Resources/UIEffect.shader
@@ -1,4 +1,4 @@
-Shader "Hidden/UIEffect"
+Shader "Hidden/UI/Default (UIEffect)"
 {
 	Properties
 	{
diff --git a/Resources/UIHsvModifier.shader b/Resources/UIHsvModifier.shader
index c2909bb7..445182b5 100644
--- a/Resources/UIHsvModifier.shader
+++ b/Resources/UIHsvModifier.shader
@@ -1,10 +1,10 @@
-Shader "Hidden/UIHsvModifier"
+Shader "Hidden/UI/Default (UIHsvModifier)"
 {
 	Properties
 	{
 		[PerRendererData] _MainTex ("Main Texture", 2D) = "white" {}
 		_Color ("Tint", Color) = (1,1,1,1)
-		
+
 		_StencilComp ("Stencil Comparison", Float) = 8
 		_Stencil ("Stencil ID", Float) = 0
 		_StencilOp ("Stencil Operation", Float) = 0
@@ -21,19 +21,19 @@
 	SubShader
 	{
 		Tags
-		{ 
-			"Queue"="Transparent" 
-			"IgnoreProjector"="True" 
-			"RenderType"="Transparent" 
+		{
+			"Queue"="Transparent"
+			"IgnoreProjector"="True"
+			"RenderType"="Transparent"
 			"PreviewType"="Plane"
 			"CanUseSpriteAtlas"="True"
 		}
-		
+
 		Stencil
 		{
 			Ref [_Stencil]
 			Comp [_StencilComp]
-			Pass [_StencilOp] 
+			Pass [_StencilOp]
 			ReadMask [_StencilReadMask]
 			WriteMask [_StencilWriteMask]
 		}
@@ -76,4 +76,4 @@
 			ENDCG
 		}
 	}
-}
\ No newline at end of file
+}
diff --git a/Resources/UIShiny.shader b/Resources/UIShiny.shader
index 17598910..5520e435 100644
--- a/Resources/UIShiny.shader
+++ b/Resources/UIShiny.shader
@@ -1,10 +1,10 @@
-Shader "Hidden/UIShiny"
+Shader "Hidden/UI/Default (UIShiny)"
 {
 	Properties
 	{
 		[PerRendererData] _MainTex ("Main Texture", 2D) = "white" {}
 		_Color ("Tint", Color) = (1,1,1,1)
-		
+
 		_StencilComp ("Stencil Comparison", Float) = 8
 		_Stencil ("Stencil ID", Float) = 0
 		_StencilOp ("Stencil Operation", Float) = 0
@@ -21,19 +21,19 @@ Shader "Hidden/UIShiny"
 	SubShader
 	{
 		Tags
-		{ 
-			"Queue"="Transparent" 
-			"IgnoreProjector"="True" 
-			"RenderType"="Transparent" 
+		{
+			"Queue"="Transparent"
+			"IgnoreProjector"="True"
+			"RenderType"="Transparent"
 			"PreviewType"="Plane"
 			"CanUseSpriteAtlas"="True"
 		}
-		
+
 		Stencil
 		{
 			Ref [_Stencil]
 			Comp [_StencilComp]
-			Pass [_StencilOp] 
+			Pass [_StencilOp]
 			ReadMask [_StencilReadMask]
 			WriteMask [_StencilWriteMask]
 		}
@@ -53,9 +53,9 @@ Shader "Hidden/UIShiny"
 			#pragma vertex vert
 			#pragma fragment frag
 			#pragma target 2.0
-			
+
 			#pragma multi_compile __ UNITY_UI_ALPHACLIP
-			
+
 			#include "UnityCG.cginc"
 			#include "UnityUI.cginc"
 
@@ -69,11 +69,11 @@ Shader "Hidden/UIShiny"
 				color.a *= UnityGet2DClipping(IN.worldPosition.xy, _ClipRect);
 
 				color = ApplyShinyEffect(color, IN.eParam);
-				
+
 				#ifdef UNITY_UI_ALPHACLIP
 				clip (color.a - 0.001);
 				#endif
-				
+
 				return color;
 			}
 		ENDCG
diff --git a/Resources/UITtransition.shader b/Resources/UITtransition.shader
index 872ffed4..d7c168ed 100644
--- a/Resources/UITtransition.shader
+++ b/Resources/UITtransition.shader
@@ -1,4 +1,4 @@
-Shader "Hidden/UITransition"
+Shader "Hidden/UI/Default (UITransition)"
 {
 	Properties
 	{
diff --git a/Scripts/Common/BaseMaterialEffect.cs b/Scripts/Common/BaseMaterialEffect.cs
index 1669e09a..0cf2d7a6 100644
--- a/Scripts/Common/BaseMaterialEffect.cs
+++ b/Scripts/Common/BaseMaterialEffect.cs
@@ -128,12 +128,13 @@ protected override void OnValidate()
         /// </summary>
         protected override void OnEnable()
         {
+            base.OnEnable();
+
             if (paramTex != null)
             {
                 paramTex.Register(this);
             }
 
-            SetVerticesDirty();
             SetMaterialDirty();
             SetEffectParamsDirty();
 
@@ -149,7 +150,8 @@ protected override void OnEnable()
         /// </summary>
         protected override void OnDisable()
         {
-            SetVerticesDirty();
+            base.OnDisable();
+
             SetMaterialDirty();
 
             if (paramTex != null)
diff --git a/Scripts/Common/GraphicConnector.cs b/Scripts/Common/GraphicConnector.cs
index aa6f4137..3046297c 100644
--- a/Scripts/Common/GraphicConnector.cs
+++ b/Scripts/Common/GraphicConnector.cs
@@ -112,14 +112,6 @@ public virtual void SetMaterialDirty(Graphic graphic)
                 graphic.SetMaterialDirty();
         }
 
-        /// <summary>
-        /// Event that is called just before Canvas rendering happens.
-        /// This allows you to delay processing / updating of canvas based elements until just before they are rendered.
-        /// </summary>
-        protected virtual void OnWillRenderCanvases()
-        {
-        }
-
         /// <summary>
         /// Gets position factor for area.
         /// </summary>
diff --git a/Scripts/UIDissolve.cs b/Scripts/UIDissolve.cs
index 095174c9..de49ef2b 100644
--- a/Scripts/UIDissolve.cs
+++ b/Scripts/UIDissolve.cs
@@ -196,7 +196,7 @@ public override ParameterTexture paramTex
             get { return s_ParamTex; }
         }
 
-        EffectPlayer effectPlayer
+        public EffectPlayer effectPlayer
         {
             get { return m_Player ?? (m_Player = new EffectPlayer()); }
         }
@@ -219,7 +219,7 @@ public override Hash128 GetMaterialHash(Material material)
         public override void ModifyMaterial(Material newMaterial, Graphic graphic)
         {
             var connector = GraphicConnector.FindConnector(graphic);
-            newMaterial.shader = connector.FindShader("UIDissolve");
+            newMaterial.shader = Shader.Find(string.Format("Hidden/{0} (UIDissolve)", newMaterial.shader.name));
             SetShaderVariants(newMaterial, m_ColorMode);
 
             newMaterial.SetTexture(k_TransitionTexId, transitionTexture);
diff --git a/Scripts/UIEffect.cs b/Scripts/UIEffect.cs
index 42ac0ced..63a8ccc9 100644
--- a/Scripts/UIEffect.cs
+++ b/Scripts/UIEffect.cs
@@ -194,7 +194,7 @@ public override void ModifyMaterial(Material newMaterial, Graphic graphic)
         {
             var connector = GraphicConnector.FindConnector(graphic);
 
-            newMaterial.shader = connector.FindShader("UIEffect");
+            newMaterial.shader = Shader.Find(string.Format("Hidden/{0} (UIEffect)", newMaterial.shader.name));
             SetShaderVariants(newMaterial, m_EffectMode, m_ColorMode, m_BlurMode,
                 m_AdvancedBlur ? BlurEx.Ex : BlurEx.None);
 
diff --git a/Scripts/UIHsvModifier.cs b/Scripts/UIHsvModifier.cs
index 16335e72..8445bb72 100644
--- a/Scripts/UIHsvModifier.cs
+++ b/Scripts/UIHsvModifier.cs
@@ -129,7 +129,7 @@ public override void ModifyMaterial(Material newMaterial, Graphic graphic)
         {
             var connector = GraphicConnector.FindConnector(graphic);
 
-            newMaterial.shader = connector.FindShader("UIHsvModifier");
+            newMaterial.shader = Shader.Find(string.Format("Hidden/{0} (UIHsvModifier)", newMaterial.shader.name));
             paramTex.RegisterMaterial(newMaterial);
         }
 
diff --git a/Scripts/UIShiny.cs b/Scripts/UIShiny.cs
index b2cabeec..3b938cb5 100644
--- a/Scripts/UIShiny.cs
+++ b/Scripts/UIShiny.cs
@@ -153,7 +153,7 @@ public override ParameterTexture paramTex
             get { return s_ParamTex; }
         }
 
-        EffectPlayer effectPlayer
+        public EffectPlayer effectPlayer
         {
             get { return m_Player ?? (m_Player = new EffectPlayer()); }
         }
@@ -194,7 +194,7 @@ public override void ModifyMaterial(Material newMaterial, Graphic graphic)
         {
             var connector = GraphicConnector.FindConnector(graphic);
 
-            newMaterial.shader = connector.FindShader("UIShiny");
+            newMaterial.shader = Shader.Find(string.Format("Hidden/{0} (UIShiny)", newMaterial.shader.name));
             paramTex.RegisterMaterial(newMaterial);
         }
 
diff --git a/Scripts/UITransitionEffect.cs b/Scripts/UITransitionEffect.cs
index 3051249c..b75dfd20 100644
--- a/Scripts/UITransitionEffect.cs
+++ b/Scripts/UITransitionEffect.cs
@@ -192,7 +192,7 @@ public bool passRayOnHidden
             set { m_PassRayOnHidden = value; }
         }
 
-        EffectPlayer effectPlayer
+        public EffectPlayer effectPlayer
         {
             get { return m_Player ?? (m_Player = new EffectPlayer()); }
         }
@@ -234,7 +234,7 @@ public override Hash128 GetMaterialHash(Material material)
         public override void ModifyMaterial(Material newMaterial, Graphic graphic)
         {
             var connector = GraphicConnector.FindConnector(graphic);
-            newMaterial.shader = connector.FindShader("UITransition");
+            newMaterial.shader = Shader.Find(string.Format("Hidden/{0} (UITransition)", newMaterial.shader.name));
             SetShaderVariants(newMaterial, m_EffectMode);
 
             newMaterial.SetTexture(k_TransitionTexId, transitionTexture);
diff --git a/package.json b/package.json
index ec8e9bac..a97ce8ea 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-effect",
   "displayName": "UI Effect",
   "description": "UI Effect provides visual effect components for Unity UI.\nLet's decorate your UI with effects!",
-  "version": "4.0.0-preview.8",
+  "version": "4.0.0-preview.9",
   "unity": "2017.1",
   "license": "MIT",
   "repository": {