Create Animated Arrows in Apple Motion

Is it possible to create these Kind of Arrows in Apple Motion using write on Behavior?
As you can se the width becomes thinner when they curve. Be good to know how since I have a project that is due tomorrow... I might need to jump to after effects.

screen shot? link to an exmaple?

Interesting the link won't show as a video...

vimeo.com/39958010

It seems this is not possible in Apple Motion. Starting lose faith in Apple Motion.

Yes, you can do that with Motion. I highly recommend doing the related Ripple Training tutorial videos. There is a lot going on in that video. Camera movement, 3D space, etc.

AppleGuru wrote: It seems this is not possible in Apple Motion.….

hmm, well … your example demoes bezier curves in 3D space (=which creates this thick/thin look) - indeed, that is not supported in Motion, you can not bend the control points/all are on one, same 'layer' of curves In Motion …

you could mimic that with some particle emitter as 'writing pen'etc etc etc … no fun.

room for improvement! (as you can not keyframe individual control points in Motion)
make an Enhancement request!
(Wishlist for MotionX gets longer and longer…LOL )

FCPX.guru wrote: Yes, you can do that with Motion. I highly recommend doing the related Ripple Training tutorial videos. There is a lot going on in that video. Camera movement, 3D space, etc.

Wel I have the Riple Training and I could not find anything that will show how to thin out the curves where it bends using as a solid.

If yo know away please enlighten us all!

Bezier points can not be manipulated in 3D space, only X and Y axis as far as I know. The effect described can be somehow faked to look 3D in Motion but the results are not the same plus there are some problems with the arrow head.
- create a Bezier line in the desired twisted shape
- create a triangle shape as the arrow head
- on the Bezier line shape go to Style and disable Fill
- on the Bezier line add the Write On behavior
- on the Bezier line shape go to Style > Shape Style > Traditional select Oil Heavy style and increase the Outline Width
- on the Bezier line shape go to Stroke > Width Over Stroke, create custom points on the green line and adjust

- on the triangle shape apply Motion Path behavior
- on the triangle shape set the Motion Path to Geometry and drag the Bezier curved line into the Shape Source
- on the triangle shape add the Snap Alignment to Motion behavior
- make Motion Path and the Write On behavior the same length.

This will be a fake effect, not real 3D and probably will be some artifacts with the arrow head.

My main concern wants the 3D aspect but where the Arrow path becomes thinner on the curves.

Thanks for the feedback but we have decided not use Apple Motion since it wants able to do this.

Make the lines airbrush and you can alter the thickness in areas very easily. Sorry you gave up so easily.