Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Adobe After Effects shatter how to start and stop

  • shatter how to start and stop

    Posted by David Tannenbaum on April 12, 2005 at 10:27 pm

    I’ve been playing with the shatter effect. I am having a difficult time figuring out control the length of the effect. Right now the shatter starts as soon as current time indicator/playhead enters the layer to be shattered. What I want to have happen is to have some sound effects to take place for 2-3 seconds then have the shatter start.

    Is there a keyframe somewhere that I am missing?

    Sam Young replied 19 years, 1 month ago 3 Members · 2 Replies
  • 2 Replies
  • Yoondo

    April 13, 2005 at 12:56 am

    You can delay the shatter start 2-3 sec. by either animating the force field so that
    it does not touch the layer for the first couple of seconds or you can split the layer
    at 2-3 second mark and apply the shatter effect to the split layer that starts at 2-3
    seconds. This way, you can have your sound effect, then your shatter.
    Hope this help you.

  • Sam Young

    April 13, 2005 at 1:04 am

    there are a few different ways of controlling the explosion — or force, as the set of parameters is called — in shatter.

    for demo purposes, add a 3d camera to the comp where you want to create your shatter and then change the shatter’s Camera System setting to Comp Camera. then move the camera so that you can see your shatter layer off to the side. set your shatter’s render setting to Wireframe+Forces, and you should see a blue sphere wireframe in contact with the layer. the blue sphere is the area of influence of the shatter’s explosion force. any part of the layer within the sphere will explode into shapes.

    if you look at the parameters in shatter’s Force 1, you will see position, depth, radius, and strength.

    position dictates where the explosion force is within the layer’s area. so you could keyframe the position of the explosion sphere off the layer and have it move through the layer, vertically and/or horizontally.

    depth dictates whether the explosion force is in front of or behind the layer. think of this as a wrecking ball crashing through a wall. you could keyframe depth so that the explosion force moves through the layer, from front to back or vice versa.

    radius dictates the size of the explosion force. a radius of 0 (zero) will cause no explosion. if you place the force within the layer’s x/y space and its depth intersecting the layer, you can keyframe the force radius from 0 to some higher value to cause a shatter at a specified time. same goes for strength.

    once a shatter has occurred, the resulting pieces are influenced by shatter’s physics parameters. at this point, the only way to ‘stop’ an explosion is to play with the physics parameters, or precompose the shatter layer and play with time remapping.

    hope this helps.

We use anonymous cookies to give you the best experience we can.
Our Privacy policy | GDPR Policy