For more detail this asset from the Unity Asset Store: Click Here
This is a paid asset, but now you can download HQ Air Ducts Kit for FREE, Please keep in mind this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
HQ Air Ducts Kit v1.2
“If possible, please buy the package to support the developer”
This kit is ideal for any Unity 5 project which has a need for a high quality (low poly) ventilation system. Kit includes 14 game-ready prefabs to construct the vent system you’ve been dreaming about since 007 Goldeneye on N64!
Kit Includes:
Demo Scene (Pictured)
14 Game Ready Prefabs
Single-Sided or Double-Sided Vent Shafts
1 Shared Material (Unity 5 Standard Shader)
1024×1024 Albedo Map
1024×1024 Normal Map
1024×1024 Pack Map*
*Metalness/Occlusion/Smoothness are packed into a single RGBA TIFF for maximum efficiency and memory overhead!
HQ PBR welcomes all comments, questions and requests!