#!/usr/bin/python

from pyrit import *

import Image

rt = Raytracer()

top = KdTree()

rt.setTop(top)

rt.setCamera(Camera())

light1 = Light(position=(0.0, 5.0, -5.0), colour=(0.7, 0.3, 0.6))

rt.addLight(light1)

light2 = Light(position=(-2.0, 10.0, -2.0), colour=(0.4, 0.6, 0.3))

rt.addLight(light2)

mat0 = Material(colour=(0.7, 0.7, 0.7))

box = Box(L=(-20.0, -1.2, -20.0), H=(20.0, -1.0, 20.0), material=mat0)

rt.addShape(box)

mat1 = Material(colour=(1.0, 0.0, 0.0))

bigsphere = Sphere(centre=(3.0, 2.0, -7.0), radius=3.0, material=mat1)

rt.addShape(bigsphere)

mat2 = Material(colour=(0.0, 1.0, 0.0))

smallsphere = Sphere(centre=(-5.5, 1.5, -8.0), radius=2.0, material=mat2)

rt.addShape(smallsphere)

mat3 = Material(colour=(0.0, 0.0, 1.0))

tinysphere = Sphere(centre=(-1.2, 0.0, -2.0), radius=0.5, material=mat3)

rt.addShape(tinysphere)

top.optimize()

imagesize = (800, 600)

sampler = DefaultSampler(imagesize)

rt.setSampler(sampler)

rt.render()

pixmap = sampler.getPixmap()

data = pixmap.getCharData()

img = Image.fromstring("RGB", imagesize, data)

img.save('demo_PIL.png')