Sky Loom is an unrealized work, a seventeen story tall holographic glass light shaft integrated into the tower of a  twenty-six story mixed use building once planned for the historic downtown of Albany, New York. The building contained a four star hotel and a business and conference center whose presenting side faces north and is thus always in shadow. The artist solved this challenge by bending the sunlight onto the north face and breaking it into a spectral display with holographic gtass. A heliostat (a microprocessor-driven mirror array) on the roof follows the sun during the day and season and redircts sunlight down the light shaft, where secondary mirrors reflect the light into holographic dispersion gratings within the glass, creating an ever-changing pattern of threads of colored light visible from both interior and exterior.