floor-top infinity swimming pool rendering

Quick answer：

An infinity pool, also known as a vanishing edge pool, is a design feature where the pool appears to have no edge. It creates an optical illusion where the water seems to spill over the edge into an adjacent body of water, such as a lake or the ocean. This design is often used on rooftops for aesthetic and luxury purposes. Renderings of such pools are architectural visualizations that show the pool's appearance from different angles and perspectives.