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
from pyrit import *
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()
sampler = DefaultSampler(800, 600)
rt.setSampler(sampler)
rt.render()
sampler.getPixmap().writePNG('spheres_shadow.png')