Learning Houdini's 'Surface Operators' (SOPs)

So after 3 weeks of Uni and not getting back into my 3D study, I am finally forcing myself to learn some things. It's a friday night and I have forced myself to, instead of playing games or generally lounge around, actually start doing some Houdini stuff. I have decided to dive into the basics of SOPs. SOPs networks are responsible for creating and modifying Houdini geometry. Some interesting nodes I found Some of the operators you can use on geometry are polybevel, normal, polyreduce, polywire. I found the polywire node particularly cool, as it lets you create a wireframe of your object: A lot of these were very familiar looking operations to me since I have seen a lot of these things when using Maya, however seeing it used as a node network is very interesting. Especially the speed in which complex shapes can be created. The delete node is something I hadn't seen before. Being able to delete stuff based on rules, such as deleteing any face that is facing a certa...