Very cool, I've actally thought at making something like this using the OpenCASCADE CAD kernel at some point (I'm familiar with that because we are using it at

Very cool, I've actally thought at making something like this using the OpenCASCADE CAD kernel at some point (I'm familiar with that because we are using it at work). Does LeoCAD itself have built-in capabilities to create the Lego's, using a CAD kernel? Or are they pre-modeled in an external tool? Typical Lego bricks are simple enough to build using basic Boolean geometric operations, so with just a few simple rules the application could define a vast library of bricks to use for building. I tried to figure this out by looking at the source code, but couldn't find it, so maybe one of the authors can comment on this? Where is the brick data coming from?