Merge branch 'master' of github.com:mikolalysenko/normals

Author: mikolalysenko

README.md

@@ -12,16 +12,18 @@ Example
 =======
 Here is how to compute the vertex and face normals for the Stanford bunny:
 
+```js
     var bunny = require("bunny");
-    var bunny.vertexNormals = require("normals").vertexNormals(bunny.positions, bunny.faces);
-    var bunny.faceNormals = require("normals").faceNormals(bunny.positions, bunny.faces);
+    bunny.vertexNormals = require("normals").vertexNormals(bunny.cells, bunny.positions);
+    bunny.faceNormals = require("normals").faceNormals(bunny.cells, bunny.positions);
+```
 
 `require("normals").vertexNormals(cells, positions)`
 ----------------------------------------------------
 This estimates the vertex normals for an oriented mesh.
 
+* `cells` is an array of indexed vertex positions
 * `positions` is an array of vertex positions
-* `faces` is an array of indexed vertex positions
 
 Returns: An array of length = `positions.length` of the per-vertex normals.
 
@@ -30,12 +32,12 @@ Returns: An array of length = `positions.length` of the per-vertex normals.
 ----------------------------------------------------
 This estimates the face normals for an oriented mesh.
 
+* `cells` is an array of indexed vertex positions
 * `positions` is an array of vertex positions
-* `faces` is an array of indexed vertex positions
 
-Returns: An array of length = `faces.length` of the per-face normals.
+Returns: An array of length = `cells.length` of the per-face normals.
 
 
 Credits
 =======
-(c) 2013 Mikola Lysenko. BSD
+(c) 2013 Mikola Lysenko. BSD