does anyone know of a resource pack that works with 1.12 that'll give you a clean/clear glass texture? (not sure if the forum was the right place to go for this)

This looks like it should work. Haven't tried it myself though.

Optifine comes with an option called "Connected Textures" that lets you have clear glass (but not completely clear). Also gives you a performance boost

I can make you a custom one if you desire, feel free to contact me for any kind of texture help or questions about optifine.

it worked! thank you!