diff --git a/ArchitectureColoredPainting/res/Shaders/element.comp b/ArchitectureColoredPainting/res/Shaders/element.comp
index eb169f8..66910e7 100644
--- a/ArchitectureColoredPainting/res/Shaders/element.comp
+++ b/ArchitectureColoredPainting/res/Shaders/element.comp
@@ -998,9 +998,9 @@ bool shouldFillBeginCap(vec2 localUV, bool onVeryBegin, int endType, vec2 p0, ve
     vec2 normal;
     if (onVeryBegin)
     {
-        if (endType == 0)
+        if (endType%2 == 0)
             return true;
-        else if (endType == 1)
+        else if (endType%2 == 1)
             normal = normalize(mat2(0, 1, -1, 0) * (-tangentBegin));
     }
     else
@@ -1017,9 +1017,9 @@ bool shouldFillEndCap(vec2 localUV, bool onVeryEnd, int endType, vec2 p3, vec2 t
     vec2 normal;
     if (onVeryEnd)
     {
-        if (endType == 0)
+        if ((endType/2)%2 == 0)
             return true;
-        else if (endType == 1)
+        else if ((endType/2)%2 == 1)
             normal = normalize(mat2(0, 1, -1, 0) * tangentEnd);
     }
     else
@@ -1103,10 +1103,7 @@ void main()
                 if (isinf(pTemp.x))
                 {
                     // TODO: ¼ì²âÊÇ·ñ·â±Õ²¢´¦Àí
-                    if (hitElement && distance(localUV, p3Last) <= strokeWidth)
-                    {
-                        // hitElement = shouldFillEndCap(localUV, true, endType, p3Last, tangentEndLast);
-                    }
+
 
                     pBegin = path[++pathIndex];
                     p3Last = pBegin;
@@ -1134,6 +1131,8 @@ void main()
                             tangentBeginNext = normalize(pNext[0] - pNext[2]);
                     }
                 }
+                else
+                     onVeryEnd = true;
 
                 float d = cubic_bezier_dis(localUV, p[0], p[1], p[2], p[3], true);
                 if (d <= strokeWidth)
@@ -1184,18 +1183,6 @@ void main()
                             vec2 metallicRoughness;
                             drawLine(minDistance / strokeWidth, styleIndex, elementColor, metallicRoughness);
                         }
-                        // else if (lastHitIndex == pathIndex - 3)
-                        // {
-                        //     hitElement = lastHitElement;
-                        //     lastHitElement = false;
-                        //     // if(lastHitElement ==false)
-                        //     //{
-                        //     // hitElement = true;
-                        //     // elementColor = vec4(1, 1, 0, 1);
-                        //     //}
-
-                        //     minDistance = 1e38;
-                        // }
                     }
                     tangentEndLast = tangentEnd;
                 }
@@ -1203,10 +1190,6 @@ void main()
                 p2Last = p[2];
                 onVeryBegin = false;
             }
-            if (hitElement && distance(localUV, p3Last) <= strokeWidth)
-            {
-                // hitElement = shouldFillEndCap(localUV, true, endType, p3Last, tangentEndLast);
-            }
             nextStyleIndex(styleIndex);
            
         }
diff --git a/ArchitectureColoredPainting/src/Renderer/Painting/MaterialStyleStroke.h b/ArchitectureColoredPainting/src/Renderer/Painting/MaterialStyleStroke.h
index 95f5957..29fd55b 100644
--- a/ArchitectureColoredPainting/src/Renderer/Painting/MaterialStyleStroke.h
+++ b/ArchitectureColoredPainting/src/Renderer/Painting/MaterialStyleStroke.h
@@ -43,7 +43,7 @@ namespace Renderer
 	};
 
 	enum class StrokeType { kBothSides = 2, kLeftSide = 1, kRightSide = 0 };
-	enum class StrokeEndType { kRound = 0, kFlat = 1 };
+	enum class StrokeEndType { kRound = 0b00, kFlat = 0b11, kRoundFlat = 0b10, kFlatRound = 0b01 };
 
 	class MaterialStyleStroke : public MaterialStyle
 	{
diff --git a/UnitTest/ElementRendererTest.cpp b/UnitTest/ElementRendererTest.cpp
index 2efebee..7a0c035 100644
--- a/UnitTest/ElementRendererTest.cpp
+++ b/UnitTest/ElementRendererTest.cpp
@@ -111,7 +111,7 @@ namespace UnitTest
 			w.show();
 			a.exec();
 		}
-		TEST_METHOD(TestRightSideFlat)
+		TEST_METHOD(TestRightSideFlatRound)
 		{
 			QApplication a(argc, argv);
 			class StyleStrokeRadialGradient : public Renderer::ElementStyle
@@ -124,7 +124,7 @@ namespace UnitTest
 						{1.00, Material{QColor(58,64,151)}}
 					};
 					return { BaseStyle(std::make_shared<TransformStyle>(),
-						std::make_shared<MaterialStyleStroke>(200, StrokeType::kRightSide, StrokeEndType::kFlat,
+						std::make_shared<MaterialStyleStroke>(160, StrokeType::kRightSide, StrokeEndType::kFlatRound,
 							std::make_shared<StrokeRadialGradient>(materialMap, false))) };
 				}
 			} style;