--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/bunny.py Fri Dec 07 14:59:14 2007 +0100
@@ -0,0 +1,57 @@
+#!/usr/bin/python
+
+# this demo needs bunny model from
+# http://graphics.stanford.edu/data/3Dscanrep/
+
+import sys
+sys.path.append(open('ModulePath').read().strip())
+
+from raytracer import Raytracer, Light, Sphere, Triangle, Material
+import Image
+
+def LoadStanfordPlyFile(rt, mat, filename, scale):
+ vertices = []
+ fp = file(filename)
+ # read header
+ tokens = (0,)
+ while (tokens[0] != "end_header"):
+ tokens = fp.readline().split()
+ if (tokens[0] == "element"):
+ if (tokens[1] == "vertex"):
+ vertex_num = int(tokens[2])
+ if (tokens[1] == "face"):
+ face_num = int(tokens[2])
+
+ # read vertices
+ while (vertex_num):
+ tokens = fp.readline().split()
+ v = [scale*float(x) for x in tokens[0:3]]
+ v[0] = -v[0]-1
+ v[1] = v[1]-3
+ vertices.append(tuple(v))
+ vertex_num -= 1
+
+ # read faces
+ while (face_num):
+ tokens = fp.readline().split()
+ if (tokens[0] != "3"):
+ print "ply warning: faces of %d vertices not supported" % tokens[0]
+ f = [vertices[int(x)] for x in tokens[1:4]]
+ face = Triangle(f[0], f[2], f[1], mat)
+ rt.addshape(face)
+ face_num -= 1
+
+rt = Raytracer()
+mat = Material(colour=(0.9, 0.9, 0.9))
+LoadStanfordPlyFile(rt, mat, "../models/bunny/bun_zipper_res3.ply", 29.0)
+
+light = Light(position=(-5.0, 2.0, 10.0), colour=(0.9, 0.3, 0.6))
+rt.addlight(light)
+
+light2 = Light(position=(4.0, -3.0, 10.0), colour=(0.2, 0.9, 0.5))
+rt.addlight(light2)
+
+imagesize = (800, 600)
+data = rt.render(imagesize)
+img = Image.fromstring("RGB", imagesize, data)
+img.save('bunny.png')