I am new to Houdini, I knew some basic stuff like (set keyframes, fracturing objects…) but now I would know how I can animate a sphere to do fracturing a cube… so like the sphere is the rigid body which is destroying the cube by flying through. I have try different things, to set the sphere as a rigid body object and then animate but nothing happen. The sphere is flying through the cube without fracture it..
what I make wrong 
?I would appricate an answer.
Daniel