I have a metre device with one handle, which rotates, clockwise. I'd like to know how to make cracks appear gradually from the centre of the device and go outwards. When the cracks appear from a smooth transition to more intense cracks, (as the hand goes from 0 to 100).
PS: Also the cracks remain on the object, they do not fall, or have colliding object.
PS: If masking method is needed, I can do it with builder modifier to reveal the animating cracks.
Here a few examples:
( This one has cracks, but they disintegrate and fall apart, I'd just like the cracks to appear gradually)