diff -r 34c6e7bc4ee1 -r c7241f504117 src/main.cpp
--- a/src/main.cpp	Sun Jun 12 23:59:37 2022 +0300
+++ b/src/main.cpp	Mon Jun 13 02:18:25 2022 +0300
@@ -8,6 +8,7 @@
 #include "ui_mainwindow.h"
 #include "version.h"
 #include "gl/axesprogram.h"
+#include "gl/gridprogram.h"
 #include "gl/partrenderer.h"
 #include "document.h"
 #include "settingseditor/settingseditor.h"
@@ -41,6 +42,7 @@
 	std::unique_ptr<QItemSelectionModel> itemSelectionModel;
 	std::unique_ptr<EditTools> tools;
 	std::unique_ptr<AxesLayer> axesLayer;
+	std::unique_ptr<GridLayer> gridLayer;
 	Model* model;
 };
 #include "main.moc"
@@ -397,9 +399,11 @@
 			data->canvas = std::make_unique<PartRenderer>(model, &documents, colorTable);
 			data->itemSelectionModel = std::make_unique<QItemSelectionModel>(model);
 			data->axesLayer = std::make_unique<AxesLayer>();
+			data->gridLayer = std::make_unique<GridLayer>();
 			data->model = model;
 			data->canvas->addRenderLayer(data->axesLayer.get());
 			data->canvas->setLayerEnabled(data->axesLayer.get(), settings.drawAxes());
+			data->canvas->addRenderLayer(data->gridLayer.get());
 			documents.setModelPayload(modelId, data);
 			QObject::connect(
 				data->tools.get(),