• Adobe After Effects Expressions

  Flooring a wiggle with Trapcode 3D Stroke

  Posted by Simon Dayton on March 7, 2012 at 2:13 am

  Having a small problem here. I’m using Trapcode 3D Stroke on a layer and have enabled the ‘Repeater’ to 4 instances. What I’m trying to achieve is wiggle the Y displacement so the instances move up and down. However as the object I’m trying to wiggle is supposedly based on the floor, I would prefer if the wiggle does not go below this position. I’ve found the expression below on here that can floor a wiggle.

  Although I would presume this only works with a layers Position because I’m getting the following error if I try to add it to the ‘Y Displace’:

  Class ‘Number’ has no property or method named ‘0’

  Does anyone know how to floor a wiggle just based on the Y value?

  Extremely grateful in advance for any assistance.

  Cheers.

  w = wiggle(1,50)-value;
[value[0],value[1]-Math.abs(w[1])]

  Simon Dayton replied 14 years, 2 months ago 2 Members · 2 Replies
• 2 Replies

• 

  Dan Ebberts

  March 7, 2012 at 5:59 am

  I think you can just set Y Displace to the minimum value you want and use this:

  value + Math.abs(wiggle(1,50)-value)

  Dan
• 

  Simon Dayton

  March 8, 2012 at 5:50 am

  Worked a treat, thanks very much 🙂

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