--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/triangles_sphere.py	Thu Oct 25 16:40:22 2007 +0200
@@ -0,0 +1,40 @@
+#!/usr/bin/python2.4
+
+import sys
+sys.path.append("../")
+
+from raytracer import Raytracer, Light, Sphere, Triangle, Material
+import Image
+
+def LoadWavefrontObjFile(rt, mat, filename):
+	vertices = []
+	fp = file(filename)
+	while True:
+		ln = fp.readline()
+		if ln == "":
+			break;
+		ln = ln.split()
+		if ln[0] == "v":
+			v = [1.5*float(x) for x in ln[1:4]]
+			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)
+			rt.addshape(face)
+
+rt = Raytracer()
+mat = Material(colour=(0.9, 0.9, 0.9))
+LoadWavefrontObjFile(rt, mat, "sphere.obj")
+
+light1 = Light(position=(0.0, 2.0, -5.0), colour=(0.9, 0.3, 0.6))
+light1.castshadows(False);
+rt.addlight(light1)
+
+light2 = Light(position=(-2.0, -5.0, -7.0), colour=(0.7, 1.0, 0.3))
+light2.castshadows(False);
+rt.addlight(light2)
+
+imagesize = (800, 600)
+data = rt.render(imagesize)
+img = Image.fromstring("RGB", imagesize, data)
+img.save('triangles_sphere.png')