Shatter should be able to do this albeit with some limitation. Set Radius to 0.1 and Depth to 0.1 and animate Force position.
What’s important before you get going is to understand that Shatter has two Forces, each independent of the other. The second thing to note is that when you animate Force position, even with Hold keyframes, the Force will travel in an imaginary linear line towards the upcoming keyframe. The result is that you will get contiguous pieces being shattered.
To shatter discontiguous pieces, switch between Force1 and Force2 as you shatter individual pieces – it’ll be helpful to use Hold Keyframes while animating each Force.
Remember to set Shatter’s ViewMode to Map/pieces or something other than rendered in order to view the pieces – for you to place the Force position accurately over a single piece – right smack in its middle. The end result is that you can have pieces flying in (nest this comp and then reverse its time playback) starting from one edge (Force1) and other pieces coming in from another edge (Force2).
Finally, to get discontiguos pieces, you’ll have to create a bunch of identical comps – really easy. Just create one a duplicate to sync with the number of pieces you want. In each comp, simply change the position for Force1. Set the Render option to Pieces. Duplicate this comp and set its duplicate’s RenderOPtion to Layer. Repeat as many times as there are pieces.
Another tip: reduce/increase the number of pieces by decreasing/increasing the Repetitions parameter.
Once you’ve got all your pieces, it’s a matter of combining them in a final comp. May be a bit tedious but at least you have this option.
HTH
Roland Kahlenberg
broadcastGEMs
customizable animated backdrops with Adobe After Effects project files