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@orient attribute to @N an @up?


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Hi everyone!

Is there a way to calculate @N and @up from the @orient attribute?
Basically the same as the orient to curve SOP does - it only outputs N and up, but i got all the Pitch/Yaw/Roll bells and whistles. 

I have everything layed out on my curve the way i want, but Unreal Engine doesn't seem to read the orient attribute. 

Thanks in advance!


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Hi Ronald, here is the extraction of axes from quaternion in vex:

matrix3 m = qconvert(p@orient);

v@xaxis = set(m.xx, m.xy, m.xz);    
v@yaxis = set(m.yx, m.yy, m.yz);
v@zaxis = set(m.zx, m.zy, m.zz);


The default orientation of v@N is zaxis, and @up is yaxis. So this is probably what you need:

matrix3 m = qconvert(p@orient);

v@up = set(m.yx, m.yy, m.yz);
v@N  = set(m.zx, m.zy, m.zz);


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