Klayout 2.5d -

: Tilts the view to look under the metal layers. Middle-Click Drag : Pans across the "cityscape" of the chip. Mouse Wheel : Zooms in deep between the gaps.

While a full 3D engine would require massive computational resources and physical modeling, a uses the existing 2D layer data and adds a "thickness" and "z-offset" component to each layer. According to KLayout 2.5D View (April 2026), this feature is specifically designed to help visualize the vertical relationship between layers without the overhead of a full CAD suite. klayout 2.5d