diff --git a/examples/OpenGL/main.cpp b/examples/OpenGL/main.cpp
index 3e5c5785..586b5197 100644
--- a/examples/OpenGL/main.cpp
+++ b/examples/OpenGL/main.cpp
@@ -173,7 +173,6 @@ int main(int argc, char *argv[])
 	cout << endl << "Time taken = " << time.elapsed() / 1000.0f << "s" << endl << endl;
 
 	const int32_t extractedRegionSize = 32;
-	const int32_t gapBetweenRegions = 1; // Set this to '1' 
 	int meshCounter = 0;
 
 	for (int32_t z = 0; z < volData.getDepth(); z += extractedRegionSize)
diff --git a/examples/common/OpenGLWidget.cpp b/examples/common/OpenGLWidget.cpp
index 76bdff47..380c6fe0 100644
--- a/examples/common/OpenGLWidget.cpp
+++ b/examples/common/OpenGLWidget.cpp
@@ -135,7 +135,7 @@ void OpenGLWidget::paintGL()
 	for (OpenGLMeshData meshData : mMeshData)
 	{
 		QMatrix4x4 modelToWorldMatrix{};
-		modelToWorldMatrix.translate(meshData.translation.getX(), meshData.translation.getY(), meshData.translation.getZ()); 
+		modelToWorldMatrix.translate(meshData.translation); 
 		modelToWorldMatrix.scale(meshData.scale);
 		shader->setUniformValue("modelToWorldMatrix", modelToWorldMatrix);
 
diff --git a/examples/common/OpenGLWidget.h b/examples/common/OpenGLWidget.h
index fe13a23a..755563fa 100644
--- a/examples/common/OpenGLWidget.h
+++ b/examples/common/OpenGLWidget.h
@@ -31,16 +31,21 @@ distribution.
 #include <QGLWidget>
 #include <QGLShaderProgram>
 
+// This structure holds all the data required
+// to render one of our meshes through OpenGL. 
 struct OpenGLMeshData
 {
 	GLuint noOfIndices;
 	GLuint indexBuffer;
 	GLuint vertexBuffer;
 	GLuint vertexArrayObject;
-	PolyVox::Vector3DInt32 translation;
+	QVector3D translation;
 	float scale;
 };
 
+// Our OpenGLWidget is used by all the examples to render the extracted meshes. It is
+// fairly specific to our needs (you probably won't want to use it in your own project)
+// but should provide a useful illustration of how PolyVox meshes can be rendered.
 class OpenGLWidget : public QGLWidget
 {
 public:
@@ -51,9 +56,11 @@ public:
 	void mouseMoveEvent(QMouseEvent* event);
 	void mousePressEvent(QMouseEvent* event);
 
-	// The viewable region can be adjusted so that this example framework can be use for different volume sizes.
+	// The viewable region can be adjusted so that this example framework can be used for different volume sizes.
 	void setViewableRegion(PolyVox::Region viewableRegion);
 
+	// For our purposes we use a single shader for the whole volume, and
+	// this example framework is only meant to show a single volume at a time
 	void setShader(QGLShaderProgram* shader)
 	{
 		this->shader = shader;
@@ -100,14 +107,13 @@ public:
 
 		meshData.noOfIndices = vecIndices.size(); //Save this for the call to glDrawElements later
 
-		meshData.translation = translation;
+		meshData.translation = QVector3D(translation.getX(), translation.getY(), translation.getZ());
 		meshData.scale = scale;
 
 		mMeshData.push_back(meshData);
 	}
 
 protected:
-	
 
 	// Qt OpenGL functions
 	void initializeGL();