• Adobe After Effects

  Particle alpha matte

  Posted by Christopher Rotter on March 4, 2009 at 7:55 pm

  Is there a way to control the particluar particles alpha matte where as you would see the composition at 100% opacity then the particles would animate from left to right as as the particle position was animated the alpha matte opacity would becoming more visible until the particles take on the composition ?
  Currently using particular I’m using AE alpha matte and the particle take on the composition from start to finish I want the particles to over time take on the alpha matte sorta like a transision ?
  I’ve tried dozens of methods and although learning more about particles, this problem I cannot figure out, it doesn’t matter if I use particular or particle world although I prefer particular because it’s faster.

  Christopher Rotter replied 17 years, 2 months ago 2 Members · 5 Replies
• 5 Replies

• 

  Christopher Rotter

  March 4, 2009 at 10:05 pm

  I don’t understand ?
• 

  Christopher Rotter

  March 5, 2009 at 1:03 am

  Alright, I’ll try see if it works !!
• 

  Jeremy Allen

  March 5, 2009 at 6:15 am

  If I understand what you’re asking, you could start with a very low birth rate and size. Then increase the birthrate and “size over life” until the particles fill the entire screen.

  ———————————————
  8core MacPro, 3.0 GHZ, 10GB RAM, OSX 10.5.2

  AE CS3
• 

  Christopher Rotter

  March 5, 2009 at 2:58 pm

  I tried this and it didn’t work, but I found a solution not what I wanted one hundred percent but I like it none-the-less.
• 

  Christopher Rotter

  March 5, 2009 at 5:21 pm

  I don’t have Boris Effects, but now that you’ve mentioned it, I’m going to look into it. And I want to thank you again Dave.

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