I’m trying to lay tiles on the floor from 3D Warehouse, but when the tiles go under certain objects they go transparent and flickers as you move. Any idea why and how to stop it? and is there a better option to get more selection of tiles other than under materials?
You just need a better looking tile texture. You can even find tile textures that will render realistically (when you run the model in a rendering software). There are different approaches according to what you are after. For example, considering rendering should you do that down the road, many renderers cannot show the SketchUp edges (that is the typical way they work) and the grout lines would disappear.