I've included a file of the last Montreal Houdini User Group presentation. This shows how to shatter a mesh from a map a bit like Blastcode does. I also drives the chunk from a particle system.
You'll notice this system works only when the texture cracks have a constant width. I haven't been able to make it work with unprecise texture. Blastcode is very good at it. My feeling a lot of the success in the algorithm is in the texture processing itself. I tried in Cop without great success.
The challenge is to make it work with texture called windowCrack_04.tif in the img folder.