Disabled external gits

cs440-acg/scenes/pa4/tests/meshes/floor.obj

@@ -0,0 +1,6 @@
+v -10 0 -10
+v -10 0 10
+v 10 0 10
+v 10 0 -10
+f 1 2 3
+f 1 3 4

cs440-acg/scenes/pa4/tests/meshes/furnace.obj

@@ -0,0 +1,58 @@
+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
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+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
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+vt 0.625000 0.500000
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+vt 0.625000 0.750000
+vt 0.375000 1.000000
+vt 0.625000 1.000000
+vt 0.875000 0.000000
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+vt 0.125000 0.000000
+vt 0.125000 0.250000
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+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

cs440-acg/scenes/pa4/tests/meshes/polylum.py

@@ -0,0 +1,90 @@
+#!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()

cs440-acg/scenes/pa4/tests/meshes/polylum1.obj

@@ -0,0 +1,4 @@
+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

cs440-acg/scenes/pa4/tests/meshes/polylum2.obj

@@ -0,0 +1,4 @@
+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

cs440-acg/scenes/pa4/tests/meshes/polylum3.obj

@@ -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

cs440-acg/scenes/pa4/tests/meshes/polylum4.obj

@@ -0,0 +1,4 @@
+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

cs440-acg/scenes/pa4/tests/meshes/polylum5.obj

@@ -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