The rotunda at the Palace of Fine Arts in San Francisco has a lot of symmetry! The raw footage for this video, from before the transformation, is at https://www.youtube.com/watch?v=iiWapD4Khyc I transformed this spherical raw footage by applying a number of different complex functions to the Riemann sphere. The reflection uses complex conjugation, while the wrapping transformation uses fractional powers. (Although in the code, both of these are implemented using complex logarithm and exponential maps.)