packetize Phong shader
new scons config options:
simd=(yes|no) - allow/suppress explicit SSE
force_flags=(yes|no) - force use of specified flags instead of autodetected
profile=(yes|no) - enable gcc's profiling (-pg option)
check for pthread.h header, don't try to build without it
add fourth Vector3 component for better memory aligning
rename Vector3 to Vector
partialy SSE-ize Vector class (only fully vertical operations)
build static lib and python module in distinctive directories
to avoid collision of library file names on some platforms
#!/usr/bin/python
# this demo needs dragon model from
# http://graphics.stanford.edu/data/3Dscanrep/
from pyrit import *
from plyreader import LoadStanfordPlyFile
rt = Raytracer()
top = KdTree()
rt.setTop(top)
rt.setCamera(Camera())
mat = Material(colour=(0.9, 0.9, 0.9))
mat.setSmooth(True)
LoadStanfordPlyFile(rt, "../models/ply/dragon/dragon_vrip_res2.ply",
mat, scale=(-29.0, 29.0, -29.0), trans=(0.0, -3.6, 0.0))
light1 = Light(position=(-5.0, 2.0, 8.0), colour=(0.9, 0.3, 0.2))
rt.addLight(light1)
light2 = Light(position=(3.0, 0.0, 9.0), colour=(0.0, 1.0, 0.2))
rt.addLight(light2)
top.optimize()
sampler = DefaultSampler(800, 600)
rt.setSampler(sampler)
rt.render()
sampler.getPixmap().writePNG('dragon.png')