Esteban Cuesta shows how to select breaks or prevent an object from breaking using PullDownIt for Maya. Esteban writes: Fast demo using Puldownit in Maya, the tutorial shows how you can at any moment select which objects breaks or prevent an object from breaking using Pdi.
Pulldownit! is a dynamics solver for Maya which allows for the creation of fractures as well as massive rigid bodies simulations. By using its technology digital artists are able to simulate fast and easily scenes made of thousands of objects and collapse buildings, bridges or any kind of brittle material.