Stained Glass

To create stained glass, you must use a casting basin and regular glass. Put the glass in your smeltery controller and melt it to create molten glass. Then, hit the seared faucet to drain the molten glass into your casting basin. It will soon solidify into a clear glass block. Take your clear glass block to a crafting table and put your glass and favorite colored dye onto the table and voila stained glass! 

Molten Glass in a smeltery. Clear glass panes in the casting basin