Shaders (Immersive Engineering)

Shaders are special upgrades added by Immersive Engineering for the Revolver (and possibly other items in future versions). They are applied in the Engineer's Workbench, inside the special Shaders slot. Shaders only modify the appearance of the Revolver; they do not added any additional functionality.

Obtaination
Shaders are obtained by trading with an Engineer Villager for 3-8 Emeralds.