When lighting an ArchViz project, one of the most popular methods, is what we know as IBL (Image Base Lighting), which consists of using a 360º high dynamic range image (HDRi) as a source of lighting to reproduce the conditions of the real sky at the time of capture, as accurate as possible. However, this technique has some important limitations and inconvenients, and that is why incorrect HDRi can cause problems when it comes to lighting our projects, sometimes causing worse results than automatic sky systems and sun that are included in most render engines.