def test_rgb_to_sampled_spectrum(self):
runtimes = [Runtime()]
color_mgr = SampledManager()
rgb_to_spec = rgb_to_spectrum_shader(color_mgr)
rgb_to_spec.compile(color_mgr=color_mgr)
rgb_to_spec.prepare(runtimes)
code = """
spec = rgb_to_spectrum(color)
"""
val = Vector3(0.3, 0.5, 0.7)
col = Vec3Arg('color', val)
spec = SampledArg('spec', color_mgr.zero())
shader = Shader(code=code, args=[col, spec])
shader.compile(shaders=[rgb_to_spec], color_mgr=color_mgr)
shader.prepare(runtimes)
shader.execute()
value = shader.get_value('spec')
vv = color_mgr.rgb_to_sampled(RGBSpectrum(val.x, val.y, val.z))
for i in range(len(value.samples)):
self.assertAlmostEqual(value.samples[i], vv.samples[i], places=6)
def test_rgb_to_rgb_spectrum(self):
runtimes = [Runtime()]
color_mgr = RGBManager()
rgb_to_spec = rgb_to_spectrum_shader(color_mgr)
rgb_to_spec.compile(color_mgr=color_mgr)
rgb_to_spec.prepare(runtimes)
code = """
spec = rgb_to_spectrum(color)
"""
val = Vector3(0.3, 0.5, 0.7)
col = Vec3Arg('color', val)
spec = RGBArg('spec', RGBSpectrum(0.0, 0.0, 0.0))
shader = Shader(code=code, args=[col, spec])
shader.compile(shaders=[rgb_to_spec], color_mgr=color_mgr)
shader.prepare(runtimes)
shader.execute()
value = shader.get_value('spec')
self.assertAlmostEqual(value.r, val.x)
self.assertAlmostEqual(value.g, val.y)
self.assertAlmostEqual(value.b, val.z)
def test_rgb_to_rgb_spectrum(self):
runtimes = [Runtime()]
color_mgr = RGBManager()
rgb_to_spec = rgb_to_spectrum_shader(color_mgr)
rgb_to_spec.compile(color_mgr=color_mgr)
rgb_to_spec.prepare(runtimes)
code = """
spec = rgb_to_spectrum(color)
"""
val = Vector3(0.3, 0.5, 0.7)
col = Vec3Arg('color', val)
spec = RGBArg('spec', RGBSpectrum(0.0, 0.0, 0.0))
shader = Shader(code=code, args=[col, spec])
shader.compile(shaders=[rgb_to_spec], color_mgr=color_mgr)
shader.prepare(runtimes)
shader.execute()
value = shader.get_value('spec')
self.assertAlmostEqual(value.r, val.x)
self.assertAlmostEqual(value.g, val.y)
self.assertAlmostEqual(value.b, val.z)
def test_rgb_to_sampled_spectrum(self):
runtimes = [Runtime()]
color_mgr = SampledManager()
rgb_to_spec = rgb_to_spectrum_shader(color_mgr)
rgb_to_spec.compile(color_mgr=color_mgr)
rgb_to_spec.prepare(runtimes)
code = """
spec = rgb_to_spectrum(color)
"""
val = Vector3(0.3, 0.5, 0.7)
col = Vec3Arg('color', val)
spec = SampledArg('spec', color_mgr.zero())
shader = Shader(code=code, args=[col, spec])
shader.compile(shaders=[rgb_to_spec], color_mgr=color_mgr)
shader.prepare(runtimes)
shader.execute()
value = shader.get_value('spec')
vv = color_mgr.rgb_to_sampled(RGBSpectrum(val.x, val.y, val.z))
for i in range(len(value.samples)):
self.assertAlmostEqual(value.samples[i], vv.samples[i], places=6)
