diff --git a/libs/graphic3d/scatter3d.cpp b/libs/graphic3d/scatter3d.cpp
index 0aac0d6..445c25d 100644
--- a/libs/graphic3d/scatter3d.cpp
+++ b/libs/graphic3d/scatter3d.cpp
@@ -84,14 +84,20 @@ void Scatter3D::setGraphicMesh(Mesh mesh, int index) {
 }
 
 
-void Scatter3D::addGraphic(const QColor & color, float pointSize, Mesh mesh) {
+void Scatter3D::setGraphicMeshSmooth(bool smooth, int index) {
+	graphics[index].series->setMeshSmooth(smooth);
+	container->update();
+}
+
+
+void Scatter3D::addGraphic(const QColor & color, float pointSize, Mesh mesh, bool meshSmooth) {
 	Scatter3DGraphic sg;
 	sg.data   = new QtDataVisualization::QScatterDataProxy();
 	sg.series = new QtDataVisualization::QScatter3DSeries(sg.data);
 	sg.series->setItemSize(pointSize);
 	sg.series->setBaseColor(color);
 	sg.series->setMesh(mesh);
-	sg.series->setMeshSmooth(true);
+	sg.series->setMeshSmooth(meshSmooth);
 	graphics.append(sg);
 	canvas->addSeries(sg.series);
 	container->update();
diff --git a/libs/graphic3d/scatter3d.h b/libs/graphic3d/scatter3d.h
index ae5379a..e8ee6ec 100644
--- a/libs/graphic3d/scatter3d.h
+++ b/libs/graphic3d/scatter3d.h
@@ -44,6 +44,7 @@ class QAD_GRAPHIC3D_EXPORT Scatter3D: public QWidget {
 	Q_PROPERTY(float graphicPointSize READ graphicPointSize WRITE setGraphicPointSize)
 	Q_PROPERTY(Mesh graphicMesh READ graphicMesh WRITE setGraphicMesh)
 	Q_PROPERTY(bool labelAutoRotation READ labelAutoRotation WRITE setLabelAutoRotation)
+	Q_PROPERTY(bool graphicMeshSmooth READ graphicMeshSmooth WRITE setGraphicMeshSmooth)
 
 public:
 	explicit Scatter3D(QWidget * parent = nullptr);
@@ -68,7 +69,9 @@ public slots:
 	void setGraphicPointSize(float sz) { setGraphicPointSize(sz, curGraphic); }
 	void setGraphicMesh(Mesh mesh, int index);
 	void setGraphicMesh(Mesh mesh) { setGraphicMesh(mesh, curGraphic); }
-	void addGraphic(const QColor & color = Qt::darkBlue, float pointSize = 1.f, Mesh mesh = Mesh::MeshSphere);
+	void setGraphicMeshSmooth(bool smooth, int index);
+	void setGraphicMeshSmooth(bool smooth) { setGraphicMeshSmooth(smooth, curGraphic); }
+	void addGraphic(const QColor & color = Qt::darkBlue, float pointSize = 1.f, Mesh mesh = Mesh::MeshSphere, bool meshSmooth = true);
 	void clear() { setGraphicsCount(0); }
 	void setLabelAutoRotation(bool on);
 	void setGraphicData(const QVector<QVector3D> & points, int index);