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0
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6
Number of samples in each angular direction
4
2
0.08
Quadrilinear
B-spline cubic
Tangentially continuous Interpolating cubic (Hermite)
0.07
0.06
RMS error
0.05
0.04
0.03
0.02
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0
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10
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10
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10
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10
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600
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9
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10
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14
13
10
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15
10
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2
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Representations and Uses of Light Distribution Functions by Paul

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