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choelzl
2022-04-07 18:46:57 +02:00
parent 88cb3426ad
commit 15e7120d6d
5316 changed files with 4563444 additions and 6 deletions
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25
cs440-acg/scenes/pa5/tests/chi2test-microfacet.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<test type="chi2test">
<!-- Test a few different configurations of the microfacet model -->
<bsdf type="microfacet">
<float name="alpha" value="0.1"/>
<float name="intIOR" value="1.33"/>
<float name="extIOR" value="1.01"/>
<color name="kd" value="0.0, 0.0, 0.0"/>
</bsdf>
<bsdf type="microfacet">
<float name="alpha" value="0.3"/>
<float name="intIOR" value="1.5"/>
<float name="extIOR" value="1.01"/>
<color name="kd" value="0.2, 0.1, 0.6"/>
</bsdf>
<bsdf type="microfacet">
<float name="alpha" value="0.6"/>
<float name="intIOR" value="1.8"/>
<float name="extIOR" value="1.3"/>
<color name="kd" value="0.4, 0.2, 0.3"/>
</bsdf>
</test>

6
cs440-acg/scenes/pa5/tests/floor.obj Normal file
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v -10 0 -10
v -10 0 10
v 10 0 10
v 10 0 -10
f 1 2 3
f 1 3 4

58
cs440-acg/scenes/pa5/tests/furnace.obj Normal file
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v -0.500000 -0.500000 0.500000
v 0.500000 -0.500000 0.500000
v -0.500000 0.500000 0.500000
v 0.500000 0.500000 0.500000
v -0.500000 0.500000 -0.500000
v 0.500000 0.500000 -0.500000
v -0.500000 -0.500000 -0.500000
v 0.500000 -0.500000 -0.500000
vt 0.375000 0.000000
vt 0.625000 0.000000
vt 0.375000 0.250000
vt 0.625000 0.250000
vt 0.375000 0.500000
vt 0.625000 0.500000
vt 0.375000 0.750000
vt 0.625000 0.750000
vt 0.375000 1.000000
vt 0.625000 1.000000
vt 0.875000 0.000000
vt 0.875000 0.250000
vt 0.125000 0.000000
vt 0.125000 0.250000
vn 0.000000 0.000000 -1.000000
vn 0.000000 0.000000 -1.000000
vn 0.000000 0.000000 -1.000000
vn 0.000000 0.000000 -1.000000
vn 0.000000 -1.000000 0.000000
vn 0.000000 -1.000000 0.000000
vn 0.000000 -1.000000 0.000000
vn 0.000000 -1.000000 0.000000
vn 0.000000 0.000000 1.000000
vn 0.000000 0.000000 1.000000
vn 0.000000 0.000000 1.000000
vn 0.000000 0.000000 1.000000
vn 0.000000 1.000000 0.000000
vn 0.000000 1.000000 0.000000
vn 0.000000 1.000000 0.000000
vn 0.000000 1.000000 0.000000
vn -1.000000 0.000000 0.000000
vn -1.000000 0.000000 0.000000
vn -1.000000 0.000000 0.000000
vn -1.000000 0.000000 0.000000
vn 1.000000 0.000000 0.000000
vn 1.000000 0.000000 0.000000
vn 1.000000 0.000000 0.000000
vn 1.000000 0.000000 0.000000
f 1/1/1 2/2/2 3/3/3
f 3/3/3 2/2/2 4/4/4
f 3/3/5 4/4/6 5/5/7
f 5/5/7 4/4/6 6/6/8
f 5/5/9 6/6/10 7/7/11
f 7/7/11 6/6/10 8/8/12
f 7/7/13 8/8/14 1/9/15
f 1/9/15 8/8/14 2/10/16
f 2/2/17 8/11/18 4/4/19
f 4/4/19 8/11/18 6/12/20
f 7/13/21 1/1/22 5/14/23
f 5/14/23 1/1/22 3/3/24

90
cs440-acg/scenes/pa5/tests/polylum.py Normal file
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#!python
import numpy as np
import sys
# Make up test cases with polygonal luminaires.
# Step 1: generate a random triangle that lies in the +y half-space.
# Make sure it faces the origin.
v = np.transpose(np.random.rand(3,3) - [[0.5], [0], [0.5]])
normal = np.cross(v[1] - v[0], v[2] - v[0])
if (np.dot(normal, v[0]) > 0):
v = np.flipud(v)
# Step 2: compute the irradiance using Lambert's formula.
# See Arvo's thesis, equations 3.1 to 3.3.
def norm(x):
return np.sqrt(np.dot(x,x))
Phi = 0 # vector irradiance
for k0 in range(3):
k1 = (k0 + 1) % 3
Theta = np.arccos(np.dot(v[k0], v[k1]) / (norm(v[k0]) * norm(v[k1])))
Gamma1 = np.cross(v[k0], v[k1])
Gamma = Gamma1 / norm(Gamma1)
Phi += 1 / 4.0 * Theta * Gamma
irradiance = -np.dot(Phi, [0,1,0])
# Step 3: write out a nori test scene, wrapped in a t-test
xml_text = """<?xml version="1.0" encoding="utf-8"?>
<test type="ttest">
<string name="references" value="%g"/>
<scene>
<integrator type="path"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="%s"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<luminaire type="area">
<color name="radiance" value="1, 1, 1"/>
</luminaire>
</mesh>
</scene>
</test>
"""
obj_text = """v %g %g %g
v %g %g %g
v %g %g %g
f 1 2 3
"""
if len(sys.argv) < 3:
print "Usage: python polylum.py <xml output file> <obj output file>"
sys.exit(-1)
fname_obj = sys.argv[2]
f_xml = open(sys.argv[1], 'w')
f_xml.write(xml_text % (.5 / np.pi * irradiance, fname_obj))
f_xml.close()
f_obj = open(fname_obj, 'w')
f_obj.write(obj_text % tuple(v.flat))
f_obj.close()

4
cs440-acg/scenes/pa5/tests/polylum1.obj Normal file
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v -0.443432 0.596366 0.495985
v -0.320397 0.0677699 -0.229359
v 0.0341197 0.11415 -0.343049
f 1 2 3

4
cs440-acg/scenes/pa5/tests/polylum2.obj Normal file
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v 0.461963 0.397843 0.412747
v -0.0381582 0.851323 -0.156872
v 0.195443 0.891957 -0.260672
f 1 2 3

4
cs440-acg/scenes/pa5/tests/polylum3.obj Normal file
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@@ -0,0 +1,4 @@
v 0.100871 0.289075 -0.422609
v -0.308386 0.629587 0.423966
v -0.373132 0.237287 0.351592
f 1 2 3

4
cs440-acg/scenes/pa5/tests/polylum4.obj Normal file
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v -0.17575 0.639397 0.151268
v 0.318604 0.732996 0.459771
v 0.139095 0.294498 0.478556
f 1 2 3

4
cs440-acg/scenes/pa5/tests/polylum5.obj Normal file
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@@ -0,0 +1,4 @@
v -0.17487 0.447916 0.367201
v -0.405259 0.249607 -0.354079
v 0.356029 0.0918984 -0.132271
f 1 2 3

489
cs440-acg/scenes/pa5/tests/test-direct.xml Normal file
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@@ -0,0 +1,489 @@
<?xml version="1.0" encoding="utf-8"?>
<test type="ttest">
<string name="references"
value="0.0898394, 0.02292, 0.0534198, 0.0205314, 0.26174,
0.0898394, 0.02292, 0.0534198, 0.0205314, 0.26174,
0.0898394, 0.02292, 0.0534198, 0.0205314, 0.26174"/>
<scene>
<integrator type="path_ems"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum1.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_ems"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum2.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_ems"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum3.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_ems"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum4.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_ems"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum5.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mats"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum1.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mats"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum2.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mats"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum3.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mats"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum4.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mats"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum5.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mis"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum1.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mis"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum2.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mis"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum3.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mis"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum4.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mis"/>
<camera type="perspective">
<transform name="toWorld">
<lookat origin="0, 0.01, 0"
target="0, 0, 0"
up="0, 0, 1"/>
</transform>
<float name="fov" value="1e-6"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="floor.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
</mesh>
<mesh type="obj">
<string name="filename" value="polylum5.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0, 0, 0"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
</test>

140
cs440-acg/scenes/pa5/tests/test-furnace.xml Normal file
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@@ -0,0 +1,140 @@
<?xml version="1.0" encoding="utf-8"?>
<!--
Furnace
This test has the camera located inside a diffuse box with emittance 1
and albedo "a". The amount of illumination received by the camera should
be be the same in all directions and equal to
1 + a + a^2 + ... = 1 / (1-a)
The following tests this for both the direct_ems tracer and the MIS direct_ems
tracer, with two different values of "a".
-->
<test type="ttest">
<string name="references" value="2, 5, 2, 5, 2, 5"/>
<scene>
<integrator type="path_ems"/>
<camera type="perspective">
<float name="fov" value="10"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="furnace.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_ems"/>
<camera type="perspective">
<float name="fov" value="10"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="furnace.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.8, 0.8, 0.8"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mats"/>
<camera type="perspective">
<float name="fov" value="10"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="furnace.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mats"/>
<camera type="perspective">
<float name="fov" value="10"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="furnace.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.8, 0.8, 0.8"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mis"/>
<camera type="perspective">
<float name="fov" value="10"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="furnace.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.5, 0.5, 0.5"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
<scene>
<integrator type="path_mis"/>
<camera type="perspective">
<float name="fov" value="10"/>
<integer name="width" value="1"/>
<integer name="height" value="1"/>
</camera>
<mesh type="obj">
<string name="filename" value="furnace.obj"/>
<bsdf type="diffuse">
<color name="albedo" value="0.8, 0.8, 0.8"/>
</bsdf>
<emitter type="area">
<color name="radiance" value="1, 1, 1"/>
</emitter>
</mesh>
</scene>
</test>

13
cs440-acg/scenes/pa5/tests/ttest-microfacet.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<test type="ttest">
<string name="angles" value=" 0, 45, 60, 80, 85"/>
<string name="references" value="0.207067, 0.215733, 0.247884, 0.430936, 0.519016"/>
<bsdf type="microfacet">
<float name="alpha" value="0.1"/>
<float name="intIOR" value="1.5"/>
<float name="extIOR" value="1.000277"/>
<color name="kd" value="0.1, 0.2, 0.15"/>
</bsdf>
</test>