We have seen the Conference Room scene before (in other posts). It was originally created for Radiance. The room does (or at least did) exist in reality and was painstakingly measured and re-created in a text editor (vi). See README file and credits in the repository, where I keep my test scenes in various formats.
Here are the first results for Pixar’s renderer RenderMan:
The RIB file for this scene can be found in Pixar’s Community Resources or the download section.