diff --git a/src/core/mouse_controller.cpp b/src/core/mouse_controller.cpp
index 9a47b08..27daf52 100644
--- a/src/core/mouse_controller.cpp
+++ b/src/core/mouse_controller.cpp
@@ -93,8 +93,8 @@ void MouseController::mouseReleaseEvent(QMouseEvent * e) {
 
 
 void MouseController::mousePressEvent(QMouseEvent * e) {
-    QPoint cpos = e->pos() * view->devicePixelRatio();
-    downPos = cpos;
+	QPoint cpos = e->pos() * view->devicePixelRatio();
+	downPos = cpos;
 	if (cur_action != RendererService::haNoAction && e->buttons() == Qt::LeftButton) {
 		return;
 	}
@@ -103,15 +103,15 @@ void MouseController::mousePressEvent(QMouseEvent * e) {
 		view->renderer_.mouse_rect = QRect();
 		return;
 	}
-    if (!QRect(QPoint(), view->size()).contains(cpos)) return;
-    lastPos = cpos;
-    downPos = cpos;
+	if (!QRect(QPoint(), view->size() * view->devicePixelRatio()).contains(cpos)) return;
+	lastPos = cpos;
+	downPos = cpos;
 	emit view->glMousePressEvent(e);
 }
 
 
 void MouseController::mouseMoveEvent(QMouseEvent * e) {
-    QPoint cpos = e->pos() * view->devicePixelRatio();
+	QPoint cpos = e->pos() * view->devicePixelRatio();
 	if (cur_action != RendererService::haNoAction && (e->buttons() == Qt::LeftButton)) {
 		RendererService & rs(view->renderer_.rend_service);
 		ObjectBaseList objects = view->scene()->selectedObjects(true);
@@ -145,7 +145,7 @@ void MouseController::mouseMoveEvent(QMouseEvent * e) {
 			mouse_vector[1] *= -1.;
 			if (cur_action == RendererService::haMove) {
 				double len_scl = 1. / QVector3D(axe_screen.x(), axe_screen.y(), 1.E-6).length();
-                mouse_vector /= QVector3D(view->pixelWidth(), view->pixelHeight(), 1);
+				mouse_vector /= QVector3D(view->pixelWidth(), view->pixelHeight(), 1);
 				mouse_vector *= -center_screen.z() * len_scl;
 				axe_vector *= QVector3D::dotProduct(axe_screen, mouse_vector);
 				QMatrix4x4 pmat;
@@ -188,9 +188,10 @@ void MouseController::mouseMoveEvent(QMouseEvent * e) {
 				axe_vector[a] = 1.;
 			foreach(ObjectBase * o, objects)
 				o->scale(QVector3D(1, 1, 1) + (axe_vector * sc));
-			QCursor::setPos(view->mapToGlobal(downPos));
-		} else
-            lastPos = cpos;
+			QCursor::setPos(view->mapToGlobal(downPos / view->devicePixelRatio()));
+		} else {
+			lastPos = cpos;
+		}
 		emit view->objectsPositionChanged();
 		return;
 	}
@@ -205,16 +206,16 @@ void MouseController::mouseMoveEvent(QMouseEvent * e) {
 		}
 		return;
 	}
-	QRect g_rect(QPoint(), view->size());
+	QRect g_rect(QPoint(), view->size() * view->devicePixelRatio());
 	if (mouseRotate_) {
-        float dx = cpos.x() - lastPos.x();
-        float dy = cpos.y() - lastPos.y();
+		float dx = cpos.x() - lastPos.x();
+		float dy = cpos.y() - lastPos.y();
 		if (e->buttons().testFlag(QT_MID_BUTTON)) {
 			if (cameraOrbit_) {
 				view->camera()->orbitZ(dx / 4.f);
 				view->camera()->orbitXY(dy / 4.f);
 			} else {
-                view->camera()->rotateZ(-dx / 4.f);
+				view->camera()->rotateZ(-dx / 4.f);
 				view->camera()->rotateX(-dy / 4.f);
 			}
 			emit view->cameraPosChanged(view->camera()->pos());
@@ -225,8 +226,8 @@ void MouseController::mouseMoveEvent(QMouseEvent * e) {
 			emit view->cameraPosChanged(view->camera()->pos());
 		}
 	}
-    if (customMouseMove_) emit view->customMouseMoveEvent(cpos, lastPos, e->buttons());
-    lastPos = cpos;
+	if (customMouseMove_) emit view->customMouseMoveEvent(cpos, lastPos, e->buttons());
+	lastPos = cpos;
 	if (e->buttons() == 0) {
 		cur_handle         = QFlags<RendererService::HandleMesh>();
 		cur_action         = RendererService::haNoAction;
@@ -263,8 +264,8 @@ void MouseController::mouseMoveEvent(QMouseEvent * e) {
 			return;
 		}
 		lastPos = g_rect.center();
-        int dx = cpos.x() - lastPos.x();
-        int dy = cpos.y() - lastPos.y();
+		int dx = cpos.x() - lastPos.x();
+		int dy = cpos.y() - lastPos.y();
 		emit view->glMouseMoveEvent(new QMouseEvent(QEvent::MouseMove, QPoint(dx, dy), e->button(), e->buttons(), e->modifiers()));
 		return;
 	}
diff --git a/src/core/qglview.cpp b/src/core/qglview.cpp
index 7e4b639..b129c98 100644
--- a/src/core/qglview.cpp
+++ b/src/core/qglview.cpp
@@ -150,7 +150,7 @@ void QGLView::timerEvent(QTimerEvent *) {
 void QGLView::render() {
 	resizeGL(pixelWidth(), pixelHeight());
 	emit glBeginPaint();
-	renderer_.mouse_pos = mapFromGlobal(QCursor::pos());
+	renderer_.mouse_pos = mapFromGlobal(QCursor::pos()) * devicePixelRatio();
 	renderer_.renderScene();
 	emit glEndPaint();
 	fps_tm = time.elapsed();
diff --git a/src/core/render/renderer.cpp b/src/core/render/renderer.cpp
index 47642fc..b7683f2 100644
--- a/src/core/render/renderer.cpp
+++ b/src/core/render/renderer.cpp
@@ -461,7 +461,7 @@ void Renderer::renderScene() {
 		rend_selection.drawSelection(fbo_out, cur_write_plane);
 		rend_service.renderService();
 	} else {
-		fbo_out.blit(cur_write_plane, 0, 0, fbo_out.rect(), QRect(QPoint(), view->size()));
+		fbo_out.blit(cur_write_plane, 0, 0, fbo_out.rect(), QRect(QPoint(), view->size() * view->devicePixelRatio()));
 	}
 	phase.end();