Define how materials are mapped to other materials in the scene and at what frequency they are replaced.
Replace: Enter the material name in your scene file. In the final port on this row input an object name variable here. With: provide a material name with a weight.
Input a material name and a weight
Weight defines the likleyhood of this material being used over another one in the list.
Randomly replace a material in your scene.
Import: Load a material collection into your scene.
Replace by: Select materials to be replaced by either "object name" or by category.
Load a set of materials from a collection.
Material collections are created on the "Materials" page. You can upload your own shaders and materials to a designated collection.