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30. 3D Stroke Effect
• Animate a thin particle system in 3D space
• Use expressions to enhance particle control
Posted on Apr 30, 2007
2,681,677
Comments
427 Comments
TUTORIAL NOTES:
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427 Comments
Comment
Nizar
05/18/2017
cool tutorial
great explanation
funny looks like beavis in first stage before he popped out into the real world
Ahmad
07/20/2016
Thanks so much , really you teach every parts with simply mode
Cheyenne
05/31/2016
Is it possible to use this effect to write a word or form into a logo? Thank you in advance.
mendy
11/16/2015
THNX SO MUCH
LeoHart
09/16/2015
Mathematical shorter expressions:
(thisComp.layer("Null 1").transform.position[0]/thisComp.width)-0.5
(thisComp.layer("Null 1").transform.position[1]/thisComp.height)-0.5
(thisComp.layer("Null 1").transform.position[2]/thisComp.width)

Why we use expressions?
The problem is, that the NULL Object coordinate system ist pixel-based. The coordinate system of the particle system is relativ. So we must transform the values in pixel based.
JoeBowbeer
07/01/2016
Divided by thisComp.width in all three cases?
Joey
07/02/2015
I am using the most recent version of After Effects CC 2014. where do I go to find the options?
Ian
06/25/2015
Thank you for this! Very clear and as easy to follow as I've seen for AE tutorials.
Antoine Banks
06/04/2015
No option to choose Fadeout Round.
Antoine Banks
06/04/2015
I'm using After Effects CC 2014. So, around 10:06, there is no Options.
Expert
03/12/2015
TUTORIAL NOTES:

x=thisComp.layer("Null 1").transform.position[0]-thisComp.width/2;
x/thisComp.width

y=thisComp.layer("Null 1").transform.position[1]-thisComp.width/2;
y/thisComp.width

z=thisComp.layer("Null 1").transform.position[2]
z/thisComp.width
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