Most of the materials are using the Real-World Scale mapping so you do not have to worry about the correct scale and tiling.Select all objects in the scene that use a certain material.Assign a material to the objects selected in the scene.Drag and drop materials into the viewport, Slate and Compact material editors.In the Scene tab of the Render Setup dialog:.
In the Corona Renderer Official Toolbar:.Using the material presets as references for creating new materials from scratch (great if you are having trouble setting up a specific material).Using the material presets as bases for creating own ones (great for users inexperienced with material creation and introducing variation in the scene).Quickly painting scene objects with realistic materials (this can greatly speed up your workflow!).The most common uses of the material library include: The library in is mainly intended for beginner users and those having problems with setting up basic materials, but may be as well useful to advanced users. It provides hundreds of ready to use materials, each with a high quality preview. It is downloaded automatically during the installation, but can be also installed manually in offline mode.
The Corona Material Library was introduced in Corona Renderer 1.7 as a part of the installation package. How to use the Corona Material Library? - 3ds Max