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Growing an arrow as it moves through a curve

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Arash Sahba
Growing an arrow as it moves through a curve
on Apr 5, 2010 at 7:38:41 pm

Hey guys,

I'm trying to figure out how to make an arrow grow, then change direction by turning a 90 degree curve, and then make it move that direction. I experimenting with several different ways and they all have been very messy and not efficient.

Keep in mind the problem is having the arrow head face the approach direction as it moves along the curve. The arrow will also be leaving a trail too, but I'm more worried about the arrow head going along the curve.

Thanks guys


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Michael Szalapski
Re: Growing an arrow as it moves through a curve
on Apr 5, 2010 at 7:49:15 pm

You will probably love the Auto-Orient option.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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Tudor Jelescu
Re: Growing an arrow as it moves through a curve
on Apr 6, 2010 at 6:27:00 pm

Draw the shape of your trail (either in a vector program like Illustrator or in AE using a mask on a solid).
Draw the tip of the arrow.
Draw path and use the orient option Michael mentioned on the arrowhead layer.
Animate arrowhead ( moving and growing, following the path and turning)
Animate reveal mask on trail shape to match the moving arrowhead.
You got yourself a growing, moving 90 degree turning arrow.
Or buy Motion Designers Toolkit - I believe they got a bunch of moving arrows over there.


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