It’s not a secret

That MAP 3D and therefore Civil 3D can run into display issues working with FDO data; this is data you attach, not data you import – data you import is an entirely different story You attach data, adjust transparency, plot, and see a black mass. This may be because the MAPPLOTTRANSPARENCY variable is turned off. To turn it on type MAPPLOTTRANSPARENCY and turn it on. In some cases, the transparency still won’t show, that could be due... [Read More...]