2009

Pieces Lists the names of the objects currently part of the Fracture object. To
highlight multiple contiguous list items, click and then Shift+click. To highlight
multiple non-contiguous list items or remove highlighting, use Ctrl+click.
Pick Lets you add an object to the Fracture helper. Click this button, and then
in the viewport position the cursor over the object to add to the helper. If the
object can be used as a fracture piece, the cursor changes from an arrow to a
cross and you can select the object to add it to the helper.
Add Lets you add one or more objects from the scene to the helper. Click the
button to open the Select Rigid Bodies For Fracture dialog. Make a selection
in the provided list, and then press the Select button to add the objects to the
helper.
Delete Lets you remove objects from the helper. In the Pieces list, highlight
the bodies to remove from the helper and then click this button.
Selected piece
You can assign these properties to pieces highlighted in the Pieces list.
Broken This read-only check box shows whether any of the highlighted pieces
have broken off at the current frame. For example, say you've created an
animation from frame 0 to frame 50 using Fracture, where piece A broke off
at frame 10. Highlighting piece A and moving the time slider to frame 10 or
after automatically turns on Broken. Moving the time slider to frame 9 or
before turns off Broken. This is because reactor keeps track of the times pieces
break off. That way, if you continue the animation at frame 50, reactor knows
it shouldn't add piece A to the fracture object, so it keeps moving
independently. You can restore a highlighted piece to its "unbroken" state
with the Reset button (see following).
Reset This button is available if any of the pieces broke off during a previous
animation (reactor stores the times when pieces broke off). Clicking this button
tells reactor to ignore the times they broke off in the previous animation.
Choose the behavior for highlighted pieces:
■ Normal The default behavior option for a fracture piece.
■ Unbreakable The highlighted piece never breaks away from the Fracture
object, even if it experiences an intense collision.
■ Keystone If this piece breaks, then all pieces break.
■ Break At Time The selected piece breaks at the time you specify. For this
kind of piece the Broken check box reflects the state of the piece at the
reactor Objects | 4015