Just a little update to this thread.
As I indicated these images were done with Corona renderer - that would be Corona for 3ds Max.
So for those that may not be aware or who may not already know, the Corona renderer Development team were working on a plugin for direct render from ArchiCAD, and they just announced this morning that they have a public Alpha version ready and available for download and testing and they would really appreciate any feedback the ArchiCAD community can give them on it.
It's a really thorough alpha version (the most thorough I've ever seen, and even more polished than some final releases of some software I've encountered), and has a lot of features already, although it's worth mentioning (and warning) that since it is an alpha version after all, some bugs might be encountered, which if you do encounter any, let them know as this will help them clear it up.
The thread discussing it is here:-
And the plugin can be downloaded from here (you have to register to their forum first):-
Just an additional note:-
They currently only have the PC/Windows version but have indicated in their forum that a Mac version is high on their list of requests.
They also have working versions for ArchiCAD versions 20-22, and EXPERIMENTAL versions for ArchiCAD versions 18-19.
KNowledge of their 3ds Max version is helpful but not necessary as Corona is generally an easy-to-use and learn renderer and pretty straight-forward and the ArchiCAD intergration was done really nicely (from what I can see so far.