diff --git a/src/quad_patch_tesselator.cpp b/src/quad_patch_tesselator.cpp
index 93f19d8..98f9414 100644
--- a/src/quad_patch_tesselator.cpp
+++ b/src/quad_patch_tesselator.cpp
@@ -2,6 +2,7 @@
 
 
 MyMesh tesselate_quad_patch(QuadPatch q, MyMesh mesh, VertexHandle vh) {
+	const size_t patch_divs = 8;
 	MyMesh patch;
 	Eigen::Vector3d point
 		(mesh.point(vh)[0], mesh.point(vh)[1], mesh.point(vh)[2]);
@@ -17,10 +18,10 @@ MyMesh tesselate_quad_patch(QuadPatch q, MyMesh mesh, VertexHandle vh) {
 		ymin = std::min(ymin, point[1]);
 		ymax = std::max(ymax, point[1]);
 	}
-	double xstep = (xmax-xmin)/64.;
-	double ystep = (ymax-ymin)/64.;
-	for (size_t y = 0; y < 64; y++) {
-		for (size_t x = 0; x < 64; x++) {
+	double xstep = (xmax-xmin)/static_cast<double>(patch_divs);
+	double ystep = (ymax-ymin)/static_cast<double>(patch_divs);
+	for (size_t y = 0; y < patch_divs; y++) {
+		for (size_t x = 0; x < patch_divs; x++) {
 			double dx = xmin + x * xstep;
 			double dy = ymin + y * ystep;
 			Eigen::Vector3d point(dx, dy, -q(dx, dy));
@@ -31,14 +32,14 @@ MyMesh tesselate_quad_patch(QuadPatch q, MyMesh mesh, VertexHandle vh) {
 	for (VertexHandle vhi : patch.vertices()) {
 		patch.set_color(vhi, MyMesh::Color(0, 1, .2));
 		size_t i = vhi.idx();
-		size_t x = i % 64;
-		size_t y = i / 64;
-		if (x == 63 || y == 63) continue;
-		patch.add_face(vhi, patch.vertex_handle(i + 64),
+		size_t x = i % patch_divs;
+		size_t y = i / patch_divs;
+		if (x == patch_divs - 1 || y == patch_divs - 1) continue;
+		patch.add_face(vhi, patch.vertex_handle(i + patch_divs),
 					   patch.vertex_handle(i + 1));
 		patch.add_face(patch.vertex_handle(i + 1),
-					   patch.vertex_handle(i + 64),
-					   patch.vertex_handle(i + 65));
+					   patch.vertex_handle(i + patch_divs),
+					   patch.vertex_handle(i + patch_divs + 1));
 	}
 	return patch;
 }