diff --git a/ArchitectureColoredPainting/Shaders/painting.comp b/ArchitectureColoredPainting/Shaders/painting.comp
index 84fd5a6..5c5a82a 100644
--- a/ArchitectureColoredPainting/Shaders/painting.comp
+++ b/ArchitectureColoredPainting/Shaders/painting.comp
@@ -1209,14 +1209,15 @@ void main()
 			{
 				uint zIndex = bvhChildren[index].y >> 18;
 				bvec2 flip = bvec2(bvhChildren[index].y & (1<<16), bvhChildren[index].y & (1<<17));
-				float angle = (float(bvhChildren[index].y) / 65535.0 - zIndex) * 2 * PI;
+				float angle = (float(bvhChildren[index].y&((1<<16)-1)) / 65535.0) * 2 * PI;
 				mat2 rotation = {{cos(angle), -sin(angle)}, {sin(angle), cos(angle)}};
 				vec2 localUV = uv - (bound.xy + bound.zw) / 2;
 				localUV = rotation * localUV;
 				localUV /= (bound.zw - bound.xy) / 2;
 				if (all(lessThan(vec2(-1), localUV)) && all(lessThan(localUV, vec2(1))) && zIndex>color.w)
 				{
-					if (any(greaterThan(bound.xy+vec2(0.005), uv)) || any(greaterThan(uv, bound.zw-vec2(0.005))))
+					//if (any(greaterThan(bound.xy+vec2(0.005), uv)) || any(greaterThan(uv, bound.zw-vec2(0.005))))
+					if (any(greaterThan(vec2(-1)+vec2(0.005), localUV)) || any(greaterThan(localUV, vec2(1)-vec2(0.005))))
 						debugBVH.g += 0.3;
 					//uint elementIndex = leftChild - bvhLength;
 					//debugBVH.bg += 0.5 * (localUV + vec2(1));
@@ -1257,7 +1258,7 @@ void main()
 
 	imageStore(gBaseColor, pixelLocation, vec4(color.rgb,1));
 	imageStore(gMetallicRoughness, pixelLocation, vec4(metallicRoughness, 0, 1));
-	return;
+	//return;
 	if (/*color.a!=-1&&*/debugBVH==vec3(0))
 	{
 		//imageStore(gBaseColor, pixelLocation, vec4(vec3(1, 1, 0),1));    
diff --git a/ArchitectureColoredPainting/src/Renderer/Model.cpp b/ArchitectureColoredPainting/src/Renderer/Model.cpp
index 68ff7e9..9ca01c8 100644
--- a/ArchitectureColoredPainting/src/Renderer/Model.cpp
+++ b/ArchitectureColoredPainting/src/Renderer/Model.cpp
@@ -411,7 +411,7 @@ GLuint Renderer::Model::loadPainting(std::string path)
 	//	//rootBvhTreeData.push_back(BvhTreeData(QVector4D(x, y, z, w), 0, encodeZIndexAngle(1, (float)rand() / RAND_MAX * 360)));
 	//	painting.addElement(element[i%3], QVector4D(x, y, z, w), (float)rand() / RAND_MAX * 360, 1);
 	//}
-	painting.addElement(*element[0], ElementTransform{ glm::vec2(-0.5,-0.45), glm::vec2(0.6,0.7), 0, glm::bvec2(true, false), 0 });
+	painting.addElement(*element[0], ElementTransform{ glm::vec2(-0.5,-0.45), glm::vec2(0.6,0.7), 45, glm::bvec2(true, false), 0 });
 	painting.addElement(*element[1], ElementTransform{ glm::vec2(-0.45,0.45), glm::vec2(0.5,0.5), 0, glm::bvec2(false), 0 });
 	painting.addElement(*element[2], ElementTransform{ glm::vec2(0.5,-0.45), glm::vec2(0.6,0.7), 0, glm::bvec2(false), 0 });
 
diff --git a/ArchitectureColoredPainting/src/Renderer/Painting/LineTree.cpp b/ArchitectureColoredPainting/src/Renderer/Painting/LineTree.cpp
index c45897f..736b55e 100644
--- a/ArchitectureColoredPainting/src/Renderer/Painting/LineTree.cpp
+++ b/ArchitectureColoredPainting/src/Renderer/Painting/LineTree.cpp
@@ -251,7 +251,7 @@ vector<BvhTreeData> LineTree::getPointLineAndBvhTree(vector<float>& resPoints, v
 	for (auto& nowTreeNode : restOfTreeNodes) {
 		BvhTreeData oneData;
 		oneData.leftSon = resLines.size();
-		//oneData.rightSon = rightSon;
+		oneData.rightSon = 0;
 		oneData.bound = nowTreeNode.bound;
 		std::cout << nowTreeNode.lineSet.size() << ' ';
 		resLines.push_back(nowTreeNode.lineSet.size());
diff --git a/UnitTest/ElementRendererTest.cpp b/UnitTest/ElementRendererTest.cpp
index 711a18f..6688750 100644
--- a/UnitTest/ElementRendererTest.cpp
+++ b/UnitTest/ElementRendererTest.cpp
@@ -70,7 +70,7 @@ namespace UnitTest
 						{1.00, Material{QColor(255,255,0)}},
 					};
 					return { BaseStyle(std::make_shared<TransformStyle>(),
-						std::make_shared<MaterialStyleStroke>(4, StrokeType::kLeftSide, StrokeEndType::kRound,
+						std::make_shared<MaterialStyleStroke>(30, StrokeType::kLeftSide, StrokeEndType::kRound,
 							std::make_shared<StrokeRadialGradient>(materialMap, true))) };
 				}
 			} style;
diff --git a/UnitTest/ElementRendererTest.h b/UnitTest/ElementRendererTest.h
index 4ddb3c0..a61fa93 100644
--- a/UnitTest/ElementRendererTest.h
+++ b/UnitTest/ElementRendererTest.h
@@ -29,15 +29,15 @@ namespace UnitTest
 			glClear(GL_COLOR_BUFFER_BIT);
 			QPainterPath path;
 			QQuickSvgParser::parsePathDataFast("M100,100C-.5,100,0,100.5,0,0L40,.07C40,59.5,39.5,60,100,60Z", path);
-			/*QTransform transform;
-			transform.scale(10, 10);
-			transform.map(path);*/
-			float pixelRatio = 30;
+			QTransform transform;
+			transform.scale(5, 5);
+			path = transform.map(path);
+			float pixelRatio = devicePixelRatioF();
 			auto [img, pos] = renderer.drawElement(path, style, pixelRatio, false);
 			QPainter painter(this);
 			painter.setRenderHint(QPainter::SmoothPixmapTransform);
 			painter.setRenderHint(QPainter::HighQualityAntialiasing);
-			painter.drawImage(QRectF(QPointF(0, 0), img.size()/devicePixelRatioF()), img);
+			painter.drawImage(QRectF(QPointF(0, 0), img.size()/pixelRatio), img);
 		};
 		void resizeGL(int w, int h) override {};
 	};