def test_sampled_point_light(self):
sam_mgr = SampledManager()
register_sampled_shadepoint(sam_mgr)
runtimes = [Runtime()]
lgt = GeneralLight()
lgt.load('point', sam_mgr, spectral=True)
lgt.set_value('intensity', RGBSpectrum(0.3, 0.3, 0.3))
lgt.set_value('position', Vector3(2.0, 2.0, 2.0))
lgt.compile()
lgt.prepare(runtimes)
ptrs = lgt.shader.get_ptrs()
ptr_func = PointerArg('ptr_func', ptrs[0])
spec = SampledArg('spec', sam_mgr.zero())
wi = Vec3Arg('wi', Vector3(0.0, 0.0, 0.0))
pos = Vec3Arg('position', Vector3(0.0, 0.0, 0.0))
code = """
hp = HitPoint()
hp.hit = (4.0, 5, 6)
sp = ShadePoint()
__light_radiance(hp, sp, ptr_func)
spec = sp.light_intensity
wi = sp.wi
position = sp.light_position
"""
shader = Shader(code=code, args=[ptr_func, wi, spec, pos])
shader.compile()
shader.prepare(runtimes)
shader.execute()
wi = Vector3(2.0, 2.0, 2.0) - Vector3(4.0, 5.0, 6.0)
wi.normalize()
wi_s = shader.get_value('wi')
self.assertAlmostEqual(wi.x, wi_s.x)
self.assertAlmostEqual(wi.y, wi_s.y)
self.assertAlmostEqual(wi.z, wi_s.z)
p = Vector3(2.0, 2.0, 2.0)
p_s = shader.get_value('position')
self.assertAlmostEqual(p.x, p_s.x)
self.assertAlmostEqual(p.y, p_s.y)
self.assertAlmostEqual(p.z, p_s.z)
s = sam_mgr.rgb_to_sampled(RGBSpectrum(0.3, 0.3, 0.3), illum=True)
s_s = shader.get_value('spec')
for i in range(len(s.samples)):
self.assertAlmostEqual(s.samples[i], s_s.samples[i])
def test_sampled_point_light(self):
sam_mgr = SampledManager()
register_sampled_shadepoint(sam_mgr)
runtimes = [Runtime()]
lgt = GeneralLight()
lgt.load('point', sam_mgr, spectral=True)
lgt.set_value('intensity', RGBSpectrum(0.3, 0.3, 0.3))
lgt.set_value('position', Vector3(2.0, 2.0, 2.0))
lgt.compile()
lgt.prepare(runtimes)
ptrs = lgt.shader.get_ptrs()
ptr_func = PointerArg('ptr_func', ptrs[0])
spec = SampledArg('spec', sam_mgr.zero())
wi = Vec3Arg('wi', Vector3(0.0, 0.0, 0.0))
pos = Vec3Arg('position', Vector3(0.0, 0.0, 0.0))
code = """
hp = HitPoint()
hp.hit = (4.0, 5, 6)
sp = ShadePoint()
__light_radiance(hp, sp, ptr_func)
spec = sp.light_intensity
wi = sp.wi
position = sp.light_position
"""
shader = Shader(code=code, args=[ptr_func, wi, spec, pos])
shader.compile()
shader.prepare(runtimes)
shader.execute()
wi = Vector3(2.0, 2.0, 2.0) - Vector3(4.0, 5.0, 6.0)
wi.normalize()
wi_s = shader.get_value('wi')
self.assertAlmostEqual(wi.x, wi_s.x)
self.assertAlmostEqual(wi.y, wi_s.y)
self.assertAlmostEqual(wi.z, wi_s.z)
p = Vector3(2.0, 2.0, 2.0)
p_s = shader.get_value('position')
self.assertAlmostEqual(p.x, p_s.x)
self.assertAlmostEqual(p.y, p_s.y)
self.assertAlmostEqual(p.z, p_s.z)
s = sam_mgr.rgb_to_sampled(RGBSpectrum(0.3, 0.3, 0.3), illum=True)
s_s = shader.get_value('spec')
for i in range(len(s.samples)):
self.assertAlmostEqual(s.samples[i], s_s.samples[i])
def test_light_manager(self):
sam_mgr = SampledManager()
register_rgb_shadepoint()
runtimes = [Runtime(), Runtime()]
lgt = GeneralLight()
lgt.load('point', sam_mgr, spectral=False)
lgt2 = GeneralLight()
lgt2.load('point', sam_mgr, spectral=False)
lgt2.set_value('intensity', RGBSpectrum(0.3, 0.3, 0.3))
lgt2.set_value('position', Vector3(2.0, 2.0, 2.0))
mgr = LightManager()
mgr.add('light1', lgt)
mgr.add('light2', lgt2)
mgr.compile_shaders(sam_mgr, spectral=False)
mgr.prepare_shaders(runtimes)
code = """
hp = HitPoint()
hp.hit = (4.0, 5, 6)
sp = ShadePoint()
light_radiance(hp, sp, 1)
wi = sp.wi
n = number_of_lights()
"""
wi = Vec3Arg('wi', Vector3(0.0, 0.0, 0.0))
nlights = IntArg('n', 999)
shader = Shader(code=code, args=[wi, nlights])
shader.compile(shaders=[mgr.rad_shader, mgr.nlights_shader])
shader.prepare(runtimes)
shader.execute()
wi = Vector3(2.0, 2.0, 2.0) - Vector3(4.0, 5.0, 6.0)
wi.normalize()
wi_s = shader.get_value('wi')
self.assertAlmostEqual(wi.x, wi_s.x)
self.assertAlmostEqual(wi.y, wi_s.y)
self.assertAlmostEqual(wi.z, wi_s.z)
self.assertEqual(2, shader.get_value('n'))
def test_light_manager(self):
sam_mgr = SampledManager()
register_rgb_shadepoint()
runtimes = [Runtime(), Runtime()]
lgt = GeneralLight()
lgt.load('point', sam_mgr, spectral=False)
lgt2 = GeneralLight()
lgt2.load('point', sam_mgr, spectral=False)
lgt2.set_value('intensity', RGBSpectrum(0.3, 0.3, 0.3))
lgt2.set_value('position', Vector3(2.0, 2.0, 2.0))
mgr = LightManager()
mgr.add('light1', lgt)
mgr.add('light2', lgt2)
mgr.compile_shaders(sam_mgr, spectral=False)
mgr.prepare_shaders(runtimes)
code = """
hp = HitPoint()
hp.hit = (4.0, 5, 6)
sp = ShadePoint()
light_radiance(hp, sp, 1)
wi = sp.wi
n = number_of_lights()
"""
wi = Vec3Arg('wi', Vector3(0.0, 0.0, 0.0))
nlights = IntArg('n', 999)
shader = Shader(code=code, args=[wi, nlights])
shader.compile(shaders=[mgr.rad_shader, mgr.nlights_shader])
shader.prepare(runtimes)
shader.execute()
wi = Vector3(2.0, 2.0, 2.0) - Vector3(4.0, 5.0, 6.0)
wi.normalize()
wi_s = shader.get_value('wi')
self.assertAlmostEqual(wi.x, wi_s.x)
self.assertAlmostEqual(wi.y, wi_s.y)
self.assertAlmostEqual(wi.z, wi_s.z)
self.assertEqual(2, shader.get_value('n'))