Datablock variables seem like a terrible way to go about this. Imagine if you wanted to use a 1x2 flat for a metal bar, and you wanted to have various metals of different mass. You'd have to create a different datablock for every one. The better way to go about it would be to have a per-brick variable that declares mass, and if the mass variable is nonexistent or invalid, the physics calculation is based on volume. However, I'm not sure if this is something Badspot is willing to add.
That video is not of v11.
WHAT?
Also, different densities makes the simulation more likely to screw up. Especially when they are user specified, guaranteeing some idiot will crank it up to +INF because they want neutronium.
I would love a ball pit.
I tried to make one but it would have taken ages to wrench all the bricks and I would have gotten a schedule quota hit.
Wow Trader, Really want to be in your v11 sever now even more then ever!