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Pitch and Roll in spat.viewer

Dear T.

It seems like setting the pitch and roll of the listener in the spat.viewer is swapt. The Yaw is working properly.

Cheers
FKN

Hi FKN,

Could you be more specific ? Or send a patch demonstrating the issue ?

Thanks,
T.

Hi T.

For example if you put a source 90° on the left side in the spat.viewer and you open spat.oper window with the front view you see no movement if you change roll, but movements when you change the pitch. That should be the other way around, if I’m not wrong?!

In appendix the patch

Thanxs
FFN

PitchRoll.maxpat (13.5 KB)

Well, it’s really a matter of convention.
And (unfortunately) there is no universal agreement on that topic.
To me, “roll” is a rotation around the X-axis.
So the behavior you described makes sense to me. This is not a bug; it’s a design choice.

T.