Fix docs to specify light's primary axis to be used for focus #3904
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- previously the docs incorrectly specified that light normal should be used, which doesn't do anything sensible for non-planar lights - added a note that the absolute value in the formula means light is emitting behind as well as in front for non-planar lights, and that this can be controlled with coneAngle if desired.
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Filed as internal issue #USD-11680 (This is an automated message. See here for more information.) |
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