diff -r 64ea7282611e -r 815fbaae9cb2 src/gl/partrenderer.h
--- a/src/gl/partrenderer.h	Tue May 24 16:11:10 2022 +0300
+++ b/src/gl/partrenderer.h	Wed May 25 12:01:58 2022 +0300
@@ -11,7 +11,7 @@
 #include "gl/common.h"
 #include "gl/compiler.h"
 
-class PartRenderer : public QOpenGLWidget, protected QOpenGLFunctions
+class PartRenderer : public QOpenGLWidget
 {
 	Q_OBJECT
 public:
@@ -33,7 +33,8 @@
 	Model* const model;
 	DocumentManager* const documents;
 	const ldraw::ColorTable& colorTable;
-	gl::Compiler* const compiler;
+	BoundingBox boundingBox;
+	gl::ModelShaders shaders;
 	ldraw::id_t highlighted = ldraw::NULL_ID;
 	std::optional<glm::vec3> screenToModelCoordinates(const QPoint& point, const geom::Plane& plane) const;
 	QPointF modelToScreenCoordinates(const glm::vec3& point) const;
@@ -53,11 +54,9 @@
 	void renderPreferencesChanged();
 private:
 	void setFragmentStyle(gl::FragmentStyle fragStyle);
-	void renderAllArrays();
 	void renderScene();
 	void updateViewMatrix();
 	void updateModelMatrix();
-	void setupBackgroundColor();
 	Q_SLOT void build();
 	double zoom = 1.0;
 	bool initialized = false;