Corona Material Library
Corona Material Library

I´ve had a great opportunity from guys at Corona Renderer to work on new feature coming with freshly released 1.7 verson of Corona - new material library. It took approximately 3 months of work, lot of research and learning new stuff. 
There are few approaches used in this library but first some technical insight
All shaders are created in scene setup to mm/mm scene/system units so it is possible some procedurals etc. will not display correctly when using any other unit setup. 
All textures that do not have specified direction (scratches, dirt) are using triplanar map to save user time so you guys do not need to throw uvw maps in some shaders at all
All textures that do have specific direction (wood..) are set to default tiling 1x1
All textures are made by me
In case of Wood library I photographed real world samples, stitched them together to 8k and created normal map accordingly
In case of Foliage I collected some real world samples and scanned them with another great tool I got my hands on - Dabarti Capture
All in all it was great experience and we hope library will serve you guys well.
However we are aware it is not perfect and still has room for improvements, so we will be grateful if you could provide us with your valuable feedback here in this thread https://corona-renderer.com/forum/index.php?topic=17498.0

Thanks a lot and below are material renders divided into categories 
Basic SSS
Carpaints
Ceramics
Concrete
Fabrics
Foliage
Leather
Liquids
Metals
Plastics
Rubber
Stone
Walls
Wood