diff --git a/examples/Basic/main.cpp b/examples/Basic/main.cpp
index 5da065c5..e7359f52 100644
--- a/examples/Basic/main.cpp
+++ b/examples/Basic/main.cpp
@@ -24,6 +24,7 @@ freely, subject to the following restrictions:
 #include "OpenGLWidget.h"
 
 #include "PolyVoxCore/CubicSurfaceExtractorWithNormals.h"
+#include "PolyVoxCore/MarchingCubesSurfaceExtractor.h"
 #include "PolyVoxCore/SurfaceMesh.h"
 #include "PolyVoxCore/SimpleVolume.h"
 
@@ -49,23 +50,17 @@ void createSphereInVolume(SimpleVolume<uint8_t>& volData, float fRadius)
 				//And compute how far the current position is from the center of the volume
 				float fDistToCenter = (v3dCurrentPos - v3dVolCenter).length();
 
-				uint8_t uMaterial = 0;
+				uint8_t uVoxelValue = 0;
 
 				//If the current voxel is less than 'radius' units from the center then we make it solid.
 				if(fDistToCenter <= fRadius)
 				{
-					//Our new density value
-					uMaterial = 1;
+					//Our new voxel value
+					uVoxelValue = 255;
 				}
 
-				//Get the old voxel
-				//Material8 voxel = volData.getVoxelAt(x,y,z);
-
-				//Modify the density and material
-				//voxel.setMaterial(uMaterial);
-
 				//Wrte the voxel value into the volume	
-				volData.setVoxelAt(x, y, z, uMaterial);
+				volData.setVoxelAt(x, y, z, uVoxelValue);
 			}
 		}
 	}
@@ -82,9 +77,14 @@ int main(int argc, char *argv[])
 	SimpleVolume<uint8_t> volData(PolyVox::Region(Vector3DInt32(0,0,0), Vector3DInt32(63, 63, 63)));
 	createSphereInVolume(volData, 30);
 
-	//Extract the surface
+	//A mesh object to hold the result of surface extraction
 	SurfaceMesh<PositionMaterialNormal> mesh;
+
+	//Create a surface extractor. Comment out one of the following two lines to decide which type gets created.
 	CubicSurfaceExtractorWithNormals< SimpleVolume<uint8_t> > surfaceExtractor(&volData, volData.getEnclosingRegion(), &mesh);
+	//MarchingCubesSurfaceExtractor< SimpleVolume<uint8_t> > surfaceExtractor(&volData, volData.getEnclosingRegion(), &mesh);
+
+	//Execute the surface extractor.
 	surfaceExtractor.execute();
 
 	//Pass the surface to the OpenGL window