Smooth shading on perspective spheres

js/BufferGeometryToGeometry.js

@@ -0,0 +1,30 @@
+var toGeometry = function (bg) {
+    // The following snipped is from Mattatz - Masatatsu Nakamura http://mattatz.org
+    var attrib = bg.getAttribute('position');
+    if(attrib === undefined) {
+        throw new Error('a given BufferGeometry object must have a position attribute.');
+    }
+
+    var positions = attrib.array;
+
+    var vertices = [];
+
+    for(var i = 0, n = positions.length; i < n; i += 3) {
+        var x = positions[i];
+        var y = positions[i + 1];
+        var z = positions[i + 2];
+        vertices.push(new THREE.Vector3(x, y, z));
+    }
+
+    var faces = [];
+
+    for(var i = 0, n = vertices.length; i < n; i += 3) {
+        faces.push(new THREE.Face3(i, i + 1, i + 2));
+    }
+
+    var geometry = new THREE.Geometry();
+    geometry.vertices = vertices;
+    geometry.faces = faces;
+    geometry.computeFaceNormals();
+    return geometry;
+}