rename Python module from 'raytracer' to 'pyrit' improve Python binding: - new objects: Container, Octree, KdTree, Shape, Pixmap, Sampler, DefaultSampler - all shapes are now subclasses of Shape - clean, remove redundant Getattr's - Raytracer render method now just wraps C++ method without doing any additional work adjust all demos for changes in Python binding, remove PIL dependency add demo_PIL.py as a example of pyrit + PIL usage render_nff.py now either loads file given as a argument or reads input from stdin otherwise fix bug in pixmap float to char conversion

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# Wavefron .obj file loader

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from pyrit import Triangle, NormalVertex

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def LoadWavefrontObjFile(rt, filename, mat, scale):

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	vertices = []

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	fp = file(filename)

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	while True:

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		ln = fp.readline()

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		if ln == "":

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			break;

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		ln = ln.split()

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		if ln[0] == "v":

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			v = [scale*float(x) for x in ln[1:4]]

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			vertices.append(tuple(v))

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		if ln[0] == "f":

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			f = [vertices[int(x)-1] for x in ln[1:4]]

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			face = Triangle(NormalVertex(f[0]), NormalVertex(f[1]), NormalVertex(f[2]), mat)

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			rt.addShape(face)