diff -r 6de5ac1fb471 -r 3a9e761e4faa src/gl/partrenderer.h
--- a/src/gl/partrenderer.h	Sun Jan 19 14:25:57 2020 +0200
+++ b/src/gl/partrenderer.h	Wed Jan 22 00:23:29 2020 +0200
@@ -2,6 +2,10 @@
 #include <QOpenGLWidget>
 #include <QOpenGLFunctions>
 #include <QQuaternion>
+#include <QOpenGLVertexArrayObject>
+#include <QOpenGLBuffer>
+#include <QOpenGLShader>
+#include <QOpenGLShaderProgram>
 #include "main.h"
 #include "gl/common.h"
 #include "gl/compiler.h"
@@ -10,7 +14,8 @@
 {
 	Q_OBJECT
 public:
-	PartRenderer(Model* model, DocumentManager* documents, QWidget* parent = nullptr);
+	PartRenderer(Model* model, DocumentManager* documents, const ColorTable& colorTable, QWidget* parent = nullptr);
+	~PartRenderer() override;
 protected:
 	void initializeGL() override;
 	void resizeGL(int width, int height) override;
@@ -23,10 +28,19 @@
 	void renderScene();
 	Model* const model;
 	DocumentManager* const documents;
+	const ColorTable& colorTable;
 	QPointF lastMousePosition;
 	QQuaternion rotation;
 	gl::Compiler* compiler;
 	gl::RenderStyle renderStyle = gl::RenderStyle::Normal;
+	struct
+	{
+		QOpenGLShaderProgram* program = nullptr;
+		QOpenGLBuffer buffer{QOpenGLBuffer::VertexBuffer};
+		QOpenGLVertexArrayObject vertexArray;
+	} objects;
 	bool initialized = false;
 	void initializeLighting();
+	void renderVao(const gl::ArrayClass arrayClass);
+	void checkForGLErrors();
 };