is a pseudo-3D technique. In KLayout, the 2.5D view extrudes each polygon vertically based on the layer’s "z" position (height). You are still looking at flat shapes, but they are lifted off the floor.
Don't render the whole chip. Use the clipping plane tool (scissors icon in 3D view) to slice through a small area of interest.
If the "2.5d View" option is grayed out, your KLayout version might have been built without OpenGL.
To use this feature, your KLayout installation must be compiled with .
Below is a draft for a post you can use for LinkedIn, a technical blog, or internal documentation.