--- a/demos/triangles_sphere.py	Fri Dec 07 16:39:42 2007 +0100
+++ b/demos/triangles_sphere.py	Sat Dec 08 12:37:45 2007 +0100
@@ -3,7 +3,7 @@
 import sys
 sys.path.append(open('ModulePath').read().strip())
 
-from raytracer import Raytracer, Light, Sphere, Triangle, Material
+from raytracer import Raytracer, Light, Sphere, Triangle, NormalVertex, Material
 import Image
 
 def LoadWavefrontObjFile(rt, mat, filename):
@@ -19,7 +19,7 @@
 			vertices.append(tuple(v))
 		if ln[0] == "f":
 			f = [vertices[int(x)-1] for x in ln[1:4]]
-			face = Triangle(f[0], f[1], f[2], mat)
+			face = Triangle(NormalVertex(f[0]), NormalVertex(f[1]), NormalVertex(f[2]), mat)
 			rt.addshape(face)
 
 rt = Raytracer()