Skp model preparation

Hi, sometimes i find that i’m not able to assign a material to a surface, i want to assign to floor and the wall get texturized too, sometimes wall didn’t selectable. Initially i thought i was wrong with the face orientation: i tried and i solve them for one model.
Next model i found the same problem but orienting the skp faces of the model didn’t solve the problem.
Now, someone could write, or show, a little tutorial that explain all the necessary action to perform to have a correct model imported in D5 render ? (i bought the passport yesterday :slight_smile: )

Excuse me for my english :slight_smile: