Caelum points axis Z towards South instead of North

[Alexey Torkhov]

Caelum has the following code snippet:
        res.z = -Math::Cos (azimuth) * Math::Cos (altitude); // North
        res.x = Math::Sin (azimuth) * Math::Cos (altitude); // East
        res.y = -Math::Sin (altitude); // Zenith

as azimuth measured clockwise from North = 0, then, if we look towards North, res.z is negative, it means it points to South. To solve it, res.z and res.x should be mirrored.

If this'll be confirmed it should be reported upstream.

[Erik Ogenvik (erik-ogenvik)]

Hmm, are you sure this isn't caused by the conversions between WF and Ogre coord space?
If so, it might very well be that it's not possible to change without patching the Caelum code in the way you've already done.

[Alexey Torkhov (atorkhov)]

Ah, yeah, right, we have
        Ogre.z = -Atlas.y
Atlas.y is North, so our Ogre.z is South and Caelum's Z is North, so we need to flip it as I did.

[Erik Ogenvik (erik-ogenvik)]

Alright, I'll mark this as fixed then. We just need to remember to retain this fix whenever we update our Caelum code.

[Alexey Torkhov (atorkhov)]

Though fix was made by change in Caelum's code, they suggested to rotate root node:
http://www.ogre3d.org/addonforums/viewtopic.php?f=21&t=8980

[Erik Ogenvik (erik-ogenvik)]

What's the status of this?

[Alexey Torkhov (atorkhov)]

The status is that workaround fix is committed to our Caelum’s copy (at least was, if it wasn’t upgraded) but “normal” fix that doesn’t require patching the Caelum’s core should be done, which I’m going to do someday.