# | Line 36 | Line 36 | At most, there will be 4 such hemisphere pairs for | |
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36 | front reflection, back reflection, front transmission, | |
37 | and back transmission. | |
38 | Theoretically, only one transmission direction is required, | |
39 | < | but it is often safest to measure both if they |
39 | > | but it is often safest to measure both if they are to |
40 | be used in a simulation. | |
41 | (See | |
42 | .I bsdf2klems(1) | |
# | Line 260 | Line 260 | RADIANCE models use the Z-axis as the world "up" direc | |
260 | Greg Ward | |
261 | .SH "SEE ALSO" | |
262 | bsdf2klems(1), bsdf2rad(1), bsdf2ttree(1), bsdfview(1), genBSDF(1), | |
263 | < | pabopto2xyz(1) |
263 | > | pabopto2xyz(1) |
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