[x3d-public] SFRotation default value spec. inconsistency

Andreas Plesch andreasplesch at gmail.com
Mon Feb 10 08:31:04 PST 2025


https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/fieldTypes.html#SFRotationAndMFRotation

specifies that (0 0 1 0) is the value of an uninitialized SFRotation given
as (x y z a).

However, the JS SAI spec. in table 7.18 in
https://www.web3d.org/documents/specifications/19777-1/V3.3/Part1/functions.html#SFRotationInstanceCreationFunction

effectively makes (0 1 0 0) the default value if no parameters are provided.

The inconsistency does not have much of an impact since both are 0
rotations but I believe (0 1 0 0) - a 0 rotation around y - may have been
intended as the default.

-Andreas

-- 
Andreas Plesch
Waltham, MA 02453
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