This is a very straightforward recipe where we will find out how to go back and reverse any material's application. Technically, there are two ways in which we can do that, and this recipe will help you how to comprehend and also let you know the limitations involved in each option.
To begin, it is essential that you have a 3D model imported in Lumion so that you can add some materials in order to understand this recipe. However, you need to add some different materials to your 3D model while modeling so that Lumion can see the surfaces. This means that if your 3D model has only one material when it is imported in Lumion, you will only be able to add one material. In this case, Lumion doesn't recognize surfaces but recognizes only materials.