One-Way Glass is a new item added by the Secret Rooms mod. It uses Camoflage Paste [sic] in crafting.
The Camoflage Paste [sic] can be along the top, left, bottom, or right sides with glass filling in the other 6 spaces to obtain 9 One-Way Glass blocks. This recipe is not completely shapeless.
Do you need a wiki for your Minecraft mod/gaming wiki? We'll host it for free! Contact us.