Cell fracture not working with physics So I have a cube that has been cell fractured. And I selected all of them and used the fracture physics tool to have the cube react to a ball hitting it. but when I changed the setting for Enable Deactivation and Start Deactivation so that it won't start until the ball hits it, and press "copy from active" in the toolbar, the fractured cube won't move at all.
Well I goofed. It turned out to be the rigid body world settings in the scene tab.
Turns out the speed was at zero, so there wasn't any chance that the fractured cube could move.