Question

By which material it is replace ?

Answer 1

Answer:

The normal SketchUp user sets materials on object by selecting a material from the library and then placing in on a object.

If you select materials from a library and drop them onto objects in your SketchUp model, then often the name refers to the material - such as Red Brick; - rather than the use of the material - such as Outside Wall.

For Replace Material or Material Styles to work well, you should create objects whose materials have functional names, such as Ceiling, Table Top, Floor, etc. Then you can assign materials from a library to these materials - without changing the material name.

After assigning the colors and textures desired to your materials you can save a Material Style which provides the color and texture for each material. When you load another style, or reload this style later, the saved materials will be loaded into the existing materials with the same names. This make it easy to save and reuse color and texture schemes and styles.

You can change the material names easily by renaming the materials from the SketchUp Materials Window.