Vray is a highly favored software in 3D architectural rendering due to its speed, integration with popular modeling tools like Sketchup, and extensive material library, allowing architects to effectively communicate their vision to clients. It excels in realistic visualization, enabling quick animations and detailed control over design elements like light and shadow, thus enhancing the overall quality of renderings. With abundant resources available for learning and mastering Vray, professionals in the architecture industry can significantly enhance their rendering capabilities.