What is a shader c4d?

A shader can be a simple color, a fractal noise, a colorizing effect, a pattern, a gradient, pretty much anything. Even bitmaps can be considered some sort of shaders. Cinema 4D Lite comes with an abundance of shaders and we can use them inside any material channel.

How do you make Corona material?

To create a new Corona material go to Corona > New Material in the material library panel. The default Corona material has diffuse component only. It is gray with a diffuse level (brightness) of 70%. This makes it useful for basic materials such as plaster, painted walls, and similar.