diff -r eee644f88e93 -r 3af627f7a40f src/gl/common.h
--- a/src/gl/common.h	Sat Feb 08 00:08:57 2020 +0200
+++ b/src/gl/common.h	Thu Feb 13 12:51:27 2020 +0200
@@ -18,24 +18,46 @@
 
 #pragma once
 #include <QColor>
+#include <QOpenGLBuffer>
 #include <QOpenGLFunctions>
-#include <QGenericMatrix>
+#include <QOpenGLShader>
+#include <QOpenGLShaderProgram>
+#include <QOpenGLVertexArrayObject>
+#include <glm/gtc/type_ptr.hpp>
 #include "basics.h"
 #include "colors.h"
 
 namespace gl
 {
-	// Transformation matrices for projection cameras.
-	static const QMatrix4x4 topCameraMatrix = {};
-	static const QMatrix4x4 frontCameraMatrix = {1, 0, 0, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1};
-	static const QMatrix4x4 leftCameraMatrix = {0, -1, 0, 0, 0, 0, 1, 0, -1, 0, 0, 0, 0, 0, 0, 1};
-	static const QMatrix4x4 bottomCameraMatrix = {1, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 1};
-	static const QMatrix4x4 backCameraMatrix = {-1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1};
-	static const QMatrix4x4 rightCameraMatrix = {0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1};
-	static constexpr QRgb BlackRgb = 0xff000000;
 	struct Polygon;
+	class ShaderProgram;
+
+	void buildShaders(
+		QOpenGLShaderProgram* shaderProgram,
+		const char* vertexShaderSource,
+		const char* fragmentShaderSource);
+	void checkForGLErrors(QWidget* parent);
 }
 
+class gl::ShaderProgram : public QOpenGLShaderProgram
+{
+public:
+	using QOpenGLShaderProgram::QOpenGLShaderProgram;
+	// for some reason I cannot overload setUniformValue properly with this template thing
+	template<typename Float, glm::qualifier Prec>
+	void setUniformMatrix(const char* uniformName, const glm::mat<4, 4, Float, Prec>& value)
+	{
+		const float (*array)[4][4] = reinterpret_cast<const float(*)[4][4]>(glm::value_ptr(value));
+		this->setUniformValue(uniformName, *array);
+	}
+	template<int N, typename Float, glm::qualifier Prec>
+	void setUniformVector(const char* uniformName, const glm::vec<N, Float, Prec>& value)
+	{
+		const Float (*array)[N] = reinterpret_cast<const Float(*)[N]>(glm::value_ptr(value));
+		this->setUniformValue(uniformName, array);
+	}
+};
+
 struct gl::Polygon
 {
 	enum Type : qint8