nodecore full adder [OPTICS SPOILERS]

with the [prism maker](https://spectra.video/w/mq7wVBn5Zva5bTWdDwwGVd) fine-tuned, i've now got lots of prisms. spent some time messing around with logic gates, this is the result. in order, this video shows: 1 XOR design, 2 similar AND designs, and finally a 1-bit full adder. the chroma items are there to block input light; they're rudimentary "levers".