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415 Comments
Comment
Dave
01/10/2015
Hi Andrew, awesome tutorial, could you please do a tutorial on how to add a 3d stroke travel line from country to country using the Element 3d EARTH model...not sure how to go about it.
Heather
12/02/2014
Hi,

Please disregard my earlier post requesting help. I figured it out. Thanks for this and all the great tutorials!

Kind Regards,
Heather
Heather Thompson
12/02/2014
I just noticed when it posted my comment for moderation that it says I entered (\"Null 1\") when I actually pasted ("Null") right from the expression?
Heather Thompson
12/02/2014
Hi

I am trying to complete your tutorial on 3d Stroke Effect. I am using the current cloud version of Adobe After Effects for 2014 on my Windows OS. I am trying to enter the expression for the x position on the particle effect. This is what I entered:

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

However as soon as I try to pickwhip it to my Null 1 object it immediately changes the expression to:

thisComp.layer("Null 1").transform.position[0]

and it doesn't work. I have ensure the Null Object is set to a 3D layer.

If you had any suggestions or could point me in some direction I would greatly appreciate it!

Kind Regards,
Heather
aek
07/29/2014
thanks
eric
05/28/2014
why cannot i make the command like' y=thisComp.layer("Null 2").transform.position[1]-thiscomp.height/2;
y/thiscomp.width/?? im using after effects cs6 please reply andrew and sincerely thank you for the tutorial.im still a newbie in after effect
Joachim
05/09/2014
Hi Andrew, great tutorial, but theres one thing..
When i change to lens convew there is no particles showing, and i dont have the abillity to change the birth color ect.

Any ideas? ..
Rey Jack
02/21/2014
Andrew, you are the BEST....!!!
agent z
12/19/2013
Hey, can't get the equation for particle world z position to work right. The other two work fine. Is there another equation or another way to link particle world to a null object?
Jayson
01/09/2014
Whereas I realize this question is a month old, I just solved the same problem. You may have forgotten to turn the null object to 3D before writing the expressions.
hashem sahoory
10/27/2013
l love this tutorial andy
this site is the best sit ever to me
10 of 415 Comments Displayed
30. 3D Stroke Effect
• Animate a thin particle system in 3D space
• Use expressions to enhance particle control
2,495,365
Comments
415 Comments
Posted on Apr 30, 2007
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