How to use:

Whiskey Bottle Material:

• Stick Mask: Used to especify where glass or where stick materials appear on the whiskey bottle. Do not change
• Stick Color: As the name says, this is the stick. Do not change
• Glass Roughness: the roughness of the glass. The higher value, the glass turns opaque. It can be used in cold situations. You can also put a texture to control it
• IOR: Index of Refraction, 1.45-1.54 for glass, 1.33 for water.
• Stick Specularity: It controls how much light the stick can reflect. The higher value, the stick looks more like a mirror.
• Stick Glossiness: It controls how the light reflected is. Lower values: the reflections are clear. Higher values: the reflections are noisy and it is difficult to see what the stick is reflecting

Barrels Material:

For this materials the settings are easy to understand:

• Specularity: how much light the barrels will reflect
• Glossiness: how the light reflected is. More shiny or more blurry