reverse build for animated ribbon ?

hello everyone,
I’d like to make an animated ribbon. I made a path, and I was thinking to move the ribbon along the path. But I can’t.
I’ve tried to achieve it with the build effect, which is great for the beginning, but when it’s done, the ribbon stay here. So is it possible to make a reverse build effect ?

Thank you.

Add a Time IPO that goes from (about) 2 on frame 1 to 0 on the last frame.

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thank you, I’ve never tried Time IPO before and it’s great.

But I wasn’t very clear, excuse me. I want the ribbon to move along the path (or to strech precisely), and disappear, so it’s not really a reverse effect.

To use IPO’s to stretch it use an Armature. Or, without IPO’s use RVK’s or RVK’s on a Curve with “CurveStretch” on in F9.

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This is my scene :
http://www.bupla.com/ribbon.gif
So I want that the red ribbon move along the path and disappear, out of the scene. So I assume I can’t use Armatures nor RVK.

A method that you could use is ‘Curve Deform’.

Here’s a (highly compressed ~149 kB divx animation):

http://www.telusplanet.net/public/kugyelka/blender/files/ribbon_divx.avi

and the blend file (~101 kB):

http://www.telusplanet.net/public/kugyelka/blender/files/ribbon.blend

Also, you can find a description of its use by Matt Ebb in his presentation on Curves at the 2005 Blender conference at:

http://www.blender.org/cms/2005_Videos.714.0.html

Damn Gimble, why didn’t I think of that!

I was trying softbodies (Actually simulating a cloth piece of ribbon) but it was really flappy!

Curve deform! - Back to the manual for another sleepless night!

YES ! That’s exactly what I was looking for.
Thank you so much, Gimble, i’ll put candle on my christmas tree in your name.

Unfortunately, the videos at http://www.blender.org/cms/2005_Videos.714.0.html don’t work for me, the links are broken apparently.