Expressions/Scripts/Presets

Moderators: Disciple, zlovatt

 
andrewkramer
Topic Author
Posts: 1
Joined: Tue Aug 30, 2005 8:11 pm

LightSaber Expression Preset

Fri Dec 15, 2006 12:29 pm

Hey everyone, thanks for the great site! I thought I would share my first creation.

I've created a preset using expressions to generate a nice lightsaber effect.

http://www.videocopilot.net/tutorials.html

For anyone interested.
I used the "beam" effect as the core and the tricky part was getting the light saber to fan or have realistic motion blur when it is moved fast. The beam effect actually generates motion blur but the layer gets semi-transparent and the glow doesn't look good.

So by using the start and end thickness of the beam effect I created an expression to calculate the speed and drive the thickness. So essentially when the points are keyframed a fast movement will cause the effect to fan out which looks like blur.

I also added a show glow checkbox to make adjusting the saber easier.

I edited the preset xml file to create the preset in AE7 so the AE 6.5 file isn't quite as advanced...

Thanks,
Andrew Kramer
http://www.videocopilot.net
Andrew Kramer
http://www.VideoCopilot.net
After Effects Tools
 
Marvin
Posts: 4
Joined: Wed Apr 04, 2007 4:07 am
Contact:

Wed Apr 04, 2007 4:46 am

Very interesting, especially the custom effect.

Thanks.

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