To generate a 2.5D visualization, you must use a specialized script based on the KLayout DRC (Design Rule Check) language Create a Script : Navigate to Tools > 2.5d View > New 2.5d Script Define the Stack function to extrude layers. z(input(1, 0), zstart: 0.1.um, height: 200.nm)
| Aspect | Performance / Limitation | |--------|--------------------------| | Polygon count | Up to ~5 million polygons before frame rate drops. Beyond that, use View > 2.5D > Simplify to decimate. | | Texture memory | Each unique layer material uses texture memory. Group layers with identical height/color into one visual layer. | | True 3D navigation | You cannot view from below (z<0) or clip through layers. Elevation is capped at ~89°. | | No cross-sectioning | Can’t generate a live cut plane. For that, use the 2D cross-section tool separately. | klayout 25d view