• Adobe After Effects

  can wave world ripples fade before reaching layer edge

  Posted by Ste Hardy on January 22, 2013 at 9:34 pm

  Hi all,
  I wondered if Wave World ripples can fade before reaching layer edge.
  I thought I could do it by animating damping up to 1 but that is not working.
  also I would like there to be several concentric ripples but only 1 central splash, as if a stone or raindrop has hit the water. does anybody know if this is possible?

  thanks in advance
  s

  Darby Edelen replied 13 years, 3 months ago 4 Members · 3 Replies
• 3 Replies

• 

  Kevin Camp

  January 22, 2013 at 10:09 pm

  i assume you are using the resulting wave world ripple as a bump map (or displacement map).

  if so you can force the edges to go gray a number of different ways… to do it all on one layer, try adding the circle effect, click the invert circle option, set the color to 50% gray, adjust the radius and feather properties until the waves fade out as the reach the edges.

  Kevin Camp
  Senior Designer
  KCPQ, KMYQ & KRCW
• 

  Vishesh Arora

  January 23, 2013 at 9:57 am

  ste

  If you are using wave world as a displacement map then
  precompose the Wave world.
  Now make a circular mask till where you want the waves to appear and again precompose it.
  Now use it as a displacement map.

  It may help.

  Vishesh Arora
  3D and Motion Graphics Artist
  Films Rajendra

  Blog:
  https://digieffects.wordpress.com

  2011 3D Demo Reel:
  https://www.youtube.com/watch?v=lHPgIJU_BR8
• 

  Darby Edelen

  January 25, 2013 at 5:00 am

  [ste hardy] “I thought I could do it by animating damping up to 1 but that is not working.
  also I would like there to be several concentric ripples but only 1 central splash, as if a stone or raindrop has hit the water. does anybody know if this is possible?”

  A constant Damping value should work for you. What that constant is will depend on a couple of other properties.

  The property you’ll want to animate for the single splash is the Amplitude of the producer. Animate this from 0 to 0.5 (or some other value) and back to 0. In general for a single splash I’d do this over 3 frames (frame 1: 0, frame 2: 0.5, frame 3: 0).

  The amount you set your Damping to will depend on the value you entered for your Amplitude as well as the Wave Speed and the Ground Height. I found that 0.5 was a good value for Damping with all other settings at their defaults and the 3 frame animation of the Amplitude.

  In addition you’ll want to feather the edges of the solid to 50% gray to be sure following either Kevin or Vishesh’s direction.

  Darby Edelen

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