demos/triangles_monkey.py
author Radek Brich <radek.brich@devl.cz>
Fri, 07 Dec 2007 14:56:39 +0100
branchpyrit
changeset 25 b8232edee786
parent 22 76b7bd51d64a
child 28 ffe83ca074f3
permissions -rwxr-xr-x
tuned ray-triangle intersection, now there are three algorithms to choose from: Plucker, Barycentric and Barycentric with preprocessing (Wald) methods in Vector and Shape (and derivates) made const
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e74bf781067e use python-config, strip python version from demos, change [PyRit] to [pyrit] -- should use unix name everywhere
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#!/usr/bin/python
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import sys
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sys.path.append(open('ModulePath').read().strip())
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from raytracer import Raytracer, Light, Sphere, Triangle, Material
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import Image
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def LoadWavefrontObjFile(rt, mat, filename):
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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 = [1.5*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(f[0], f[1], f[2], mat)
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			rt.addshape(face)
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rt = Raytracer()
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mat = Material(colour=(0.9, 0.9, 0.9))
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LoadWavefrontObjFile(rt, mat, "monkey.obj")
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light = Light(position=(-5.0, 2.0, 8.0), colour=(0.9, 0.3, 0.6))
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rt.addlight(light)
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imagesize = (800, 600)
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data = rt.render(imagesize)
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img = Image.fromstring("RGB", imagesize, data)
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img.save('triangles_monkey.png')