GDS3D
Interactive 3D Layout Viewer for GDSII
GDS3D is a cross-platform 3D hardware accelerated viewer for chip layouts. Read standalone GDS files or use the Cadence plugin for easy integration with your Virtuoso environment.
Developed by PhDs of the IC-Design Group, University of Twente, The Netherlands
The GDS3D project is also hosted on Github: https://github.com/icdut24/GDS3D, but currently not actively maintained by us.
Forks can be found at https://github.com/trilomix/GDS3D and https://github.com/skuep/GDS3D