[PD] 3D Look at

[Jack]

Le 26/06/2012 15:54, Roch Jub a écrit :
> Hey !
>
> So I send a mail some time ago to the list and got no answer, so I
> guess it was not really clear.
>
> I come now with a more simple version of my problem.
>
> I have two cubes,
>
> cube A
> translationXYZ 0 0 0
> rotationXYZ 0 0 0
>
> and cube B
> translationXYZ 12 5 6
> rotationXYZ 0 0 0
>
> now I want to calculate with only thoses informations, the rotations
> in X Y and Z for cube A to look at cube B. (numbers are irrelevent, I
> want to make the algorythme)
>
> I have tryed many things, with trigonometry, learned about Gimbal
> lock, read everything I could about euler angles, etc ... result is
> it's not working right.
>
> I attached an exemple patch. The math inside are based on the help I
> got on a math forum. It quite look like the thing I was trying to do
> but it doesn"t work better :)
>
> Anybody ? Any idea?
>
> cheers
>
> PS : I try to do that to calculate joint orientations of kinect
> skeleton. and even though there might be other solutions(wich I be
> glad to know about), now it's a personal affair, I WANT TO DO IT !!! 2
> WEEKS I'VE BEEN TRYING !! AAARGH
>
>
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Is it what you are looking for ?
++

Jack



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