Hi, If we use object as an upvector, then we don't need the Increment Rotation with 2 vectors compound. We can just use 'Direction to Rotation' node. -tangent as 'Point At' -the position difference of the upvector object position to the curve position as 'Up Vector'
Cheers, edy On Fri, Jun 28, 2013 at 5:58 PM, olivier jeannel <olivier.jean...@noos.fr>wrote: > I don't know the official way, but since the tangency will control the > rotation on one axis, you just need to add a second Set Rotation that look > UP on another axis. > Like this : > > (Local vector set to 0, 1, 0 ) > > Le 28/06/2013 10:49, Morten Bartholdy a écrit : > > Pretty cool Alan! So tangency is controlled in the Increment Rotation > node - how would I control the upvector, say with another null? > > To better understand how it works, how come it is necessary to key the > null to zero rot and pos for it to work? > > > > Morten > > > > > > Den 26. juni 2013 kl. 16:45 skrev Alan Fregtman > <alan.fregt...@gmail.com><alan.fregt...@gmail.com>: > > > > http://s3.darkvertex.com/hlinked/ice/ICE_example_kinematics_pathOrCurveUConstraint.png > > Maybe something like this? You may need to do more to deal with the > upvector better if your curve complexity is intense. > > > > On Wed, Jun 26, 2013 at 10:34 AM, Ponthieux, Joseph G. (LARC-E1A)[LITES] < > j.ponthi...@nasa.gov > wrote: > > Is there a way to perform a path constraint using ICE? > > > > I’m certain that it can be done but I can’t find a task or tool > prepackaged to do this. > > > > > > Thanks > > > > -- > > Joey Ponthieux > > LaRC Information Technology Enhanced Services (LITES) > > Mymic Technical Services > > NASA Langley Research Center > > __________________________________________________ > > Opinions stated here-in are strictly those of the author and do not > > represent the opinions of NASA or any other party. > > > > > > > > -- Edy Susanto Lim TD http://sawamura.neorack.com
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