diff --git a/Assets/Coffee/UIExtentions/UIParticle/UIParticle.cs b/Assets/Coffee/UIExtentions/UIParticle/UIParticle.cs
index ea32fc0..19b3e0a 100644
--- a/Assets/Coffee/UIExtentions/UIParticle/UIParticle.cs
+++ b/Assets/Coffee/UIExtentions/UIParticle/UIParticle.cs
@@ -4,153 +4,171 @@ using UnityEngine;
 using UnityEngine.Profiling;
 using UnityEngine.UI;
 
-//[RequireComponent(typeof(ParticleSystem))]
-[ExecuteInEditMode]
-public class UIParticle : MaskableGraphic
+
+namespace Coffee.UIExtensions
 {
-	static readonly int s_IdMainTex = Shader.PropertyToID("_MainTex");
-	static readonly List<Vector3> s_Vertices = new List<Vector3>();
-
-	[SerializeField] ParticleSystem m_ParticleSystem;
-	[SerializeField] UIParticle m_TrailParticle;
-
-	Mesh _mesh;
-	ParticleSystemRenderer _renderer;
-
-	[HideInInspector] [SerializeField] bool m_IsTrail = false;
-
-
-
-	public override Texture mainTexture
+	/// <summary>
+	/// Render maskable and sortable particle effect ,without Camera, RenderTexture or Canvas.
+	/// </summary>
+	[ExecuteInEditMode]
+	public class UIParticle : MaskableGraphic
 	{
-		get
+		//################################
+		// Constant or Readonly Static Members.
+		//################################
+		static readonly int s_IdMainTex = Shader.PropertyToID("_MainTex");
+		static readonly List<Vector3> s_Vertices = new List<Vector3>();
+
+
+		//################################
+		// Serialize Members.
+		//################################
+		[Tooltip("The ParticleSystem rendered by CanvasRenderer")]
+		[SerializeField] ParticleSystem m_ParticleSystem;
+		[Tooltip("The UIParticle to render trail effect")]
+		[SerializeField] UIParticle m_TrailParticle;
+		[HideInInspector] [SerializeField] bool m_IsTrail = false;
+
+
+		//################################
+		// Public/Protected Members.
+		//################################
+		public override Texture mainTexture
 		{
-			var mat = _renderer ? _renderer.sharedMaterial : defaultGraphicMaterial;
-			return mat && mat.HasProperty(s_IdMainTex) ? mat.mainTexture : s_WhiteTexture; ;
-		}
-	}
-
-	public override Material GetModifiedMaterial(Material baseMaterial)
-	{
-		return base.GetModifiedMaterial(_renderer ? _renderer.sharedMaterial : baseMaterial);
-	}
-
-	protected override void OnEnable()
-	{
-		m_ParticleSystem = m_ParticleSystem ? m_ParticleSystem : GetComponent<ParticleSystem>();
-		_renderer = m_ParticleSystem ? m_ParticleSystem.GetComponent<ParticleSystemRenderer>() : null;
-
-		_mesh = new Mesh();
-		_mesh.MarkDynamic();
-		CheckTrail();
-		base.OnEnable();
-	}
-
-	protected override void OnDisable()
-	{
-		DestroyImmediate(_mesh);
-		_mesh = null;
-		CheckTrail();
-		base.OnDisable();
-	}
-
-	void CheckTrail()
-	{
-		if (isActiveAndEnabled && !m_IsTrail && m_ParticleSystem && m_ParticleSystem.trails.enabled)
-		{
-			if (!m_TrailParticle)
+			get
 			{
-				m_TrailParticle = new GameObject("[UIParticle] Trail").AddComponent<UIParticle>();
-				var trans = m_TrailParticle.transform;
-				trans.SetParent(transform);
-				trans.localPosition = Vector3.zero;
-				trans.localRotation = Quaternion.identity;
-				trans.localScale = Vector3.one;
-
-				m_TrailParticle._renderer = GetComponent<ParticleSystemRenderer>();
-				m_TrailParticle.m_ParticleSystem = GetComponent<ParticleSystem>();
-				m_TrailParticle.m_IsTrail = true;
+				var mat = _renderer ? _renderer.sharedMaterial : defaultGraphicMaterial;
+				return mat && mat.HasProperty(s_IdMainTex) ? mat.mainTexture : s_WhiteTexture; ;
 			}
-			m_TrailParticle.enabled = true;
 		}
-		else if (m_TrailParticle)
+
+		public override Material GetModifiedMaterial(Material baseMaterial)
 		{
-			m_TrailParticle.enabled = false;
+			return base.GetModifiedMaterial(_renderer ? _renderer.sharedMaterial : baseMaterial);
 		}
-	}
 
-	protected override void UpdateGeometry()
-	{
-	}
-
-	void Update()
-	{
-		Profiler.BeginSample("CheckTrail");
-		CheckTrail();
-		Profiler.EndSample();
-
-		if (m_ParticleSystem)
+		protected override void OnEnable()
 		{
-			Profiler.BeginSample("Disable ParticleSystemRenderer");
-			if (Application.isPlaying)
-			{
-				_renderer.enabled = false;
-			}
+			m_ParticleSystem = m_ParticleSystem ? m_ParticleSystem : GetComponent<ParticleSystem>();
+			_renderer = m_ParticleSystem ? m_ParticleSystem.GetComponent<ParticleSystemRenderer>() : null;
+
+			_mesh = new Mesh();
+			_mesh.MarkDynamic();
+			CheckTrail();
+			base.OnEnable();
+		}
+
+		protected override void OnDisable()
+		{
+			DestroyImmediate(_mesh);
+			_mesh = null;
+			CheckTrail();
+			base.OnDisable();
+		}
+
+		protected override void UpdateGeometry()
+		{
+		}
+
+		//################################
+		// Private Members.
+		//################################
+		Mesh _mesh;
+		ParticleSystemRenderer _renderer;
+
+		void Update()
+		{
+			Profiler.BeginSample("CheckTrail");
+			CheckTrail();
 			Profiler.EndSample();
 
-			Profiler.BeginSample("Make Matrix");
-			var cam = canvas.worldCamera ?? Camera.main;
-			bool useTransform = false;
-			Matrix4x4 matrix = default(Matrix4x4);
-			switch (m_ParticleSystem.main.simulationSpace)
+			if (m_ParticleSystem)
 			{
-				case ParticleSystemSimulationSpace.Local:
-					matrix =
-					Matrix4x4.Rotate(m_ParticleSystem.transform.rotation).inverse
-					 * Matrix4x4.Scale(m_ParticleSystem.transform.lossyScale).inverse;
-					useTransform = true;
-					break;
-				case ParticleSystemSimulationSpace.World:
-					matrix = m_ParticleSystem.transform.worldToLocalMatrix;
-					break;
-				case ParticleSystemSimulationSpace.Custom:
-					break;
-			}
-			Profiler.EndSample();
-
-			_mesh.Clear();
-			if (0 < m_ParticleSystem.particleCount)
-			{
-				Profiler.BeginSample("Bake Mesh");
-				if (m_IsTrail)
+				Profiler.BeginSample("Disable ParticleSystemRenderer");
+				if (Application.isPlaying)
 				{
-					_renderer.BakeTrailsMesh(_mesh, cam, useTransform);
-				}
-				else
-				{
-					_renderer.BakeMesh(_mesh, cam, useTransform);
+					_renderer.enabled = false;
 				}
 				Profiler.EndSample();
 
-				// Apply matrix.
-				Profiler.BeginSample("Apply matrix to position");
-				_mesh.GetVertices(s_Vertices);
-				var count = s_Vertices.Count;
-				for (int i = 0; i < count; i++)
+				Profiler.BeginSample("Make Matrix");
+				var cam = canvas.worldCamera ?? Camera.main;
+				bool useTransform = false;
+				Matrix4x4 matrix = default(Matrix4x4);
+				switch (m_ParticleSystem.main.simulationSpace)
 				{
-					s_Vertices[i] = matrix.MultiplyPoint3x4(s_Vertices[i]);
+					case ParticleSystemSimulationSpace.Local:
+						matrix =
+						Matrix4x4.Rotate(m_ParticleSystem.transform.rotation).inverse
+						 * Matrix4x4.Scale(m_ParticleSystem.transform.lossyScale).inverse;
+						useTransform = true;
+						break;
+					case ParticleSystemSimulationSpace.World:
+						matrix = m_ParticleSystem.transform.worldToLocalMatrix;
+						break;
+					case ParticleSystemSimulationSpace.Custom:
+						break;
 				}
-				_mesh.SetVertices(s_Vertices);
-				s_Vertices.Clear();
+				Profiler.EndSample();
+
+				_mesh.Clear();
+				if (0 < m_ParticleSystem.particleCount)
+				{
+					Profiler.BeginSample("Bake Mesh");
+					if (m_IsTrail)
+					{
+						_renderer.BakeTrailsMesh(_mesh, cam, useTransform);
+					}
+					else
+					{
+						_renderer.BakeMesh(_mesh, cam, useTransform);
+					}
+					Profiler.EndSample();
+
+					// Apply matrix.
+					Profiler.BeginSample("Apply matrix to position");
+					_mesh.GetVertices(s_Vertices);
+					var count = s_Vertices.Count;
+					for (int i = 0; i < count; i++)
+					{
+						s_Vertices[i] = matrix.MultiplyPoint3x4(s_Vertices[i]);
+					}
+					_mesh.SetVertices(s_Vertices);
+					s_Vertices.Clear();
+					Profiler.EndSample();
+				}
+
+
+				// Set mesh to CanvasRenderer.
+				Profiler.BeginSample("Set mesh to CanvasRenderer");
+				canvasRenderer.SetMesh(_mesh);
 				Profiler.EndSample();
 			}
+		}
 
+		void CheckTrail()
+		{
+			if (isActiveAndEnabled && !m_IsTrail && m_ParticleSystem && m_ParticleSystem.trails.enabled)
+			{
+				if (!m_TrailParticle)
+				{
+					m_TrailParticle = new GameObject("[UIParticle] Trail").AddComponent<UIParticle>();
+					var trans = m_TrailParticle.transform;
+					trans.SetParent(transform);
+					trans.localPosition = Vector3.zero;
+					trans.localRotation = Quaternion.identity;
+					trans.localScale = Vector3.one;
 
-			// Set mesh to CanvasRenderer.
-			Profiler.BeginSample("Set mesh to CanvasRenderer");
-			canvasRenderer.SetMesh(_mesh);
-			Profiler.EndSample();
-			//canvasRenderer.SetColor(color);
+					m_TrailParticle._renderer = GetComponent<ParticleSystemRenderer>();
+					m_TrailParticle.m_ParticleSystem = GetComponent<ParticleSystem>();
+					m_TrailParticle.m_IsTrail = true;
+				}
+				m_TrailParticle.enabled = true;
+			}
+			else if (m_TrailParticle)
+			{
+				m_TrailParticle.enabled = false;
+			}
 		}
 	}
-}
+}
\ No newline at end of file