# | Line 252 | Line 252 | In the | |
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252 | utility, the world coordinate system follows trigonometric | |
253 | conventions with theta=0 aligning to the Z-axis, | |
254 | the X-axis matches (theta,phi)=(90,0), and the Y-axis | |
255 | < | is has (theta,phi)=(90,90). |
255 | > | corresponds to (theta,phi)=(90,90). |
256 | The latter is thought of as the "up" direction for the sample. | |
257 | This usually needs to be rotated into position, since most | |
258 | RADIANCE models use the Z-axis as the world "up" direction. |
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< | Changed lines |
> | Changed lines |