diff -r fad4a5dd8dee -r 5c0005f63319 src/ui/canvas.cpp
--- a/src/ui/canvas.cpp	Wed Feb 26 22:26:05 2020 +0200
+++ b/src/ui/canvas.cpp	Thu Feb 27 11:56:41 2020 +0200
@@ -1,4 +1,5 @@
 #include <QMouseEvent>
+#include <QPainter>
 #include "canvas.h"
 
 Canvas::Canvas(
@@ -22,24 +23,26 @@
 
 void Canvas::mouseMoveEvent(QMouseEvent* event)
 {
-#if 0
-	std::optional<glm::vec3> p = this->cameraToGrid(event->pos());
-	if (p.has_value())
+	const ldraw::Id id = this->pick(event->pos());
+	this->highlighted = id;
+	this->totalMouseMove += (event->pos() - this->lastMousePosition).manhattanLength();
+	this->lastMousePosition = event->pos();
+	this->worldPosition = this->screenToModelCoordinates(this->lastMousePosition);
+	if (this->worldPosition.has_value())
 	{
-		this->newStatusText("Position: (%1, %2, %3)"_q.arg(p->x).arg(p->y).arg(p->z));
+		this->worldPosition = glm::round(*this->worldPosition);
+	}
+	if (this->worldPosition.has_value())
+	{
+		this->newStatusText("Position: (%1, %2, %3)"_q
+			.arg(this->worldPosition->x)
+			.arg(this->worldPosition->y)
+			.arg(this->worldPosition->z));
 	}
 	else
 	{
 		this->newStatusText("Position: <none>"_q);
 	}
-#else
-	const QPointF originAtCamera = this->modelToScreenCoordinates({1, 1, 1});
-	this->newStatusText("{1,1,1} is at (%1, %2), cursor at (%3, %4)"_q.arg(originAtCamera.x()).arg(originAtCamera.y()).arg(event->pos().x()).arg(event->pos().y()));
-#endif
-	const ldraw::Id id = this->pick(event->pos());
-	this->highlighted = id;
-	this->totalMouseMove += (event->pos() - this->lastMousePosition).manhattanLength();
-	this->lastMousePosition = event->pos();
 	PartRenderer::mouseMoveEvent(event);
 }
 
@@ -68,3 +71,16 @@
 	}
 	PartRenderer::mouseReleaseEvent(event);
 }
+
+void Canvas::paintGL()
+{
+	PartRenderer::paintGL();
+	if (this->worldPosition.has_value())
+	{
+		QPainter painter{this};
+		painter.setRenderHint(QPainter::Antialiasing);
+		painter.setPen(Qt::black);
+		painter.setBrush(Qt::green);
+		painter.drawEllipse(this->modelToScreenCoordinates(*this->worldPosition), 10, 10);
+	}
+}