If you have properly modeled footprints (XY plane of the 3D model on the PCB and origin at the center of the bounding box), then you can easily generate 3D view of the assembly. In this screenshot, you can see the generated model being rendered by view3dscene.
Code:
https://gitlab.com/atamariya/emacs/-/blob/dev/lisp/svg.el
https://gitlab.com/atamariya/emacs/-/blob/dev/lisp/gerber.el
Details: https://lifeofpenguin.blogspot.com/2021/11/pcb-design-in-gnu-emacs.html
