diff --git a/ArchitectureColoredPainting/CubicBezier.cpp b/ArchitectureColoredPainting/CubicBezier.cpp
index 99b3277..3385ee6 100644
--- a/ArchitectureColoredPainting/CubicBezier.cpp
+++ b/ArchitectureColoredPainting/CubicBezier.cpp
@@ -20,9 +20,9 @@ Point CubicBezier::calculateControlPoint(Point a, Point b) {
 }
 
 void CubicBezier::findPointsOfDivison(vector<double> &p, vector<double>& res) {
-	double a = -3 * p[0] + 9 * p[1] - 9 * p[2] + 3 * p[3];
-	double b = 6 * p[0] - 12 * p[1] + 6 * p[2];
-	double c = -3 * p[0] + 3 * p[1];
+	double a = -3 * p[0] + 3 * p[1] - 3 * p[2] + 3 * p[3];
+	double b = 6 * p[0] - 4 * p[1] + 2 * p[2];
+	double c = -3 * p[0] + p[1];
 	double deta = b * b - 4 * a * c, t = 0;
 	if (fabs(a) > eps) {
 		if (deta < eps) return;
@@ -112,7 +112,7 @@ int CubicBezier::judgeBoundIntersection(double xy, double l, double r, bool isY)
 		be = *vY.begin();
 		en = *vY.rbegin();
 	}
-	if ((be - xy) * (en - xy) > eps) return 0;
+	if ((be - xy) * (en - xy) >= eps) return 0;
 	double t = findTByValue(xy, isY);
 	double value = getLineValueByT(t, !isY);
 	if (l <= value && value <= r && fabs(t) > eps && fabs(1 - t) > eps) {
diff --git a/ArchitectureColoredPainting/RendererWidget.cpp b/ArchitectureColoredPainting/RendererWidget.cpp
index b3220d7..b034184 100644
--- a/ArchitectureColoredPainting/RendererWidget.cpp
+++ b/ArchitectureColoredPainting/RendererWidget.cpp
@@ -309,10 +309,10 @@ void RendererWidget::paintGL()
 	depthMipmapProgramPtr->bind();
 	for (int i = 0; i <= 3; i++)
 		glBindImageTexture(i, gbuffers[7], i, GL_FALSE, 0, GL_READ_WRITE, GL_R32F);
-	glDispatchCompute(ceil(depthWidth / 2 / 8.), ceil(depthHeight / 2 / 8.), 1);
+	glDispatchCompute(ceil(depthWidth / 2. / 8.), ceil(depthHeight / 2. / 8.), 1);
 	for (int i = 0; i <= 3; i++)
 		glBindImageTexture(i, gbuffers[7], i + 3, GL_FALSE, 0, GL_READ_WRITE, GL_R32F);
-	glDispatchCompute(ceil(depthWidth / 2 / 8 / 8.), ceil(depthHeight / 2 / 8 / 8.), 1);
+	glDispatchCompute(ceil(depthWidth / 2. / 8. / 8.), ceil(depthHeight / 2. / 8. / 8.), 1);
 	depthMipmapProgramPtr->release();
 
 	shadowMappingProgramPtr->bind();
diff --git a/ArchitectureColoredPainting/StraightLine.cpp b/ArchitectureColoredPainting/StraightLine.cpp
index e738bd1..f7ad846 100644
--- a/ArchitectureColoredPainting/StraightLine.cpp
+++ b/ArchitectureColoredPainting/StraightLine.cpp
@@ -31,7 +31,7 @@ int StraightLine::judgeBoundIntersection(double xy, double l, double r, bool isY
 		swap(be.x, be.y);
 		swap(en.x, en.y);
 	}
-	if ((be.x - xy) * (en.x - xy) > eps) return 0;
+	if ((be.x - xy) * (en.x - xy) >= eps) return 0;
 	if (direction(isY)) {
 		float t = findTByValue(xy, isY);
 		float value = getLineValueByT(t, !isY);
diff --git a/ArchitectureColoredPainting/SvgParser.cpp b/ArchitectureColoredPainting/SvgParser.cpp
index 399eb97..ac0819e 100644
--- a/ArchitectureColoredPainting/SvgParser.cpp
+++ b/ArchitectureColoredPainting/SvgParser.cpp
@@ -4,7 +4,7 @@
 vector<vector<Point>> SvgParser::parse(const std::string path, float width, float height)
 {
 	std::string tmp;
-	vector<float> point;
+	vector<double> point;
 	vector<Point> line;
 	vector<vector<Point>> lines;
 	for (char c : path.substr(1))
@@ -18,11 +18,11 @@ vector<vector<Point>> SvgParser::parse(const std::string path, float width, floa
 		{
 			if (tmp != "")
 			{
-				point.push_back(std::stof(tmp));
+				point.push_back(std::stod(tmp));
 				tmp = "";
 				if (point.size() == 2)
 				{
-					line.push_back(Point{ std::clamp(point[0] / width * 2 - 1, -1.f, 1.f) , std::clamp(1 - point[1] / height * 2 , -1.f, 1.f)});
+					line.push_back(Point{ std::clamp(point[0] / width * 2 - 1, -1., 1.) , std::clamp(1 - point[1] / height * 2 , -1., 1.)});
 					point.clear();
 				}
 			}