[vtkusers] Converting into the Eye position, Look at point and up Vector notation

[Chris Hughes]

Hi guys,

I am overall looking for a method to convert from the transformation matrix
used in the ARToolkit to the 'Eye position', 'Look at point' and 'up Vector'
notation that I am used to using in VTK. I can convert the matrix into an
OpenGL transformation matrix if it is easier to convert from there?

Can anyone point me in the right direction or point me towards more
information about the 'Eye position', 'Look at point' and 'up Vector'
notation?

Many Thanks,

Chris
 



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