But what exactly is "2.5D"? It isn't true 3D rendering (like you’d see in Cadence Virtuoso 3D or Siemens Calibre 3DSTACK). Instead, the 2.5D view in KLayout gives you a pseudo-3D perspective where 2D polygons are extruded vertically based on layer information. This article dives deep into how to activate, configure, and leverage the KLayout 2.5D view to debug your designs faster than ever before.
: The current implementation handles approximately 100,000 polygons before performance significantly degrades. How to Use the 2.5D Viewer klayout 25d view
: Use the Z-axis zoom slider (on the right) to exaggerate height variations, which is helpful if the real height profile is too flat to see clearly. Visual Customization But what exactly is "2
The 3D view is completely black. Solution: You are likely looking from inside the substrate. Reset the camera ( View > Reset 3D Camera ). Also, ensure your "Background color" in preferences is not black (set it to dark grey). This article dives deep into how to activate,
True 3D is blocked by opaque objects. To see lower layers through upper ones, use .
If your polygons just look like flat colored pancakes even in perspective mode, check the thickness. Without sidewalls, an extruded polygon is invisible when viewed from the side. Set "Sidewall width" to at least 1 pixel.