Tetracube

I dug around a while for functions with similar names. The solution was to make the block class inherit BreakableBlock, a very unintuitively named class.

As you can see from the image, my custom translucent blocks on the left there aren't "connecting" like the vanilla blocks. I figured this would be a common problem, but searching only turns up questions where the answer is "use notSolid()". I've implemented that as well as RenderType.getTranslucent(). How do I fix this?