Faculty: Nicoletta Adamo (Purdue University) and Paolo Fiamma (University of Pisa, Italy)

Students: Jesse Janowiak and Matt Barton

Sponsor: Museo Leonardiano, Vinci, Italy

Project Abstract

The project involved the design and development of an interactive, immersive installation for the Museo Leonardiano (Leonardo’s museum) in Vinci, Italy. The exhibit was part of a series of events aimed at celebrating Leonardo da Vinci’s Genius (‘Celebrazioni Leonardiane’, April 2008-July 2008) and its specific purpose was to let the viewers visualize and experience Leonardo’s visionary concept of an infinite, heliocentric universe (anticipatory of the Copernican System) as opposed to Ptolemy’s model of a finite, geocentric world.  The viewers were first immersed in a 3D synthesized geocentric universe and taken through a virtual journey across the eight spheres of Ptolemy’s cosmological model. Then they travelled through Leonardo’s heliocentric world and explored it from unique points of view. In the first journey the visitors perceived the cosmos as a closed, static entity, whereas in the second voyage they experienced Leonardo’s revolutionary concept of an open, dynamic universe part of an infinite space. The interactive exhibit was based on the use of Virtual Reality (VR) and 3D Animation technologies. The hardware setup consisted of a single-screen portable immersive system with head and hand tracking technology and passive stereo. The visual content included 3D renderings of Ptolemy’s and Leonardo’s universes designed, modeled and animated by the authors in Autodesk Maya software. The audience reactions and comments demonstrated the effectiveness of the technology for visualizing the two systems and for conveying the contrast between the two cosmological models. The project described in the paper had two higher objectives. The first goal was to investigate the potential of VR technology as an educational/entertainment tool and as an instrument of historic research, simulation, reconstruction and dissemination in museums. The second objective was to initiate research toward the design of a novel museum space and technological infrastructure to support the development and display of VR immersive exhibits in the Da Vinci museum.


COLOR PLATE 1 - 3D renderings of Ptolemy’s cosmological model (created in Maya software)

3D Model of Ptolemy’s universe

Close-up views of the 7 planets of the Ptolemaic system, (left); Close-up view of the Earth, (right)

Reference images used to create the model: illustrations from Andreas Cellarius Harmonia Macrocosmica, 1660/61 (left and middle); the Christian Aristotelian cosmos, engraving from Peter Apian's Cosmographia, 1524 (right)

COLOR PLATE 2 – Renderings of the 3D model of the heliocentric system (created in Maya)

Rendering of the heliocentric system

Renderings of the planets (including Leonardo’s moon)

Rendering of Moon (left) based on Leonardo’s drawing (middle); rendering of the sun (right)

COLOR PLATE 3 - System setup

Diagram illustrating the system setup in the museum

Diagram of the viewer’s virtual journey through the 8 spheres of Ptolemy’s cosmological model, starting from the Earth and ending in the sky of the “Fixed Stars”.

Visitor interacting with the VR exhibit (left); View of Vinci with the Tower of the Rocca dei Conti Guidi (right)

Close-up views of sun and planets extracted from the animation simulating a viewer’s virtual journey through Leonardo’s universe

Frames extracted from the animation simulating a viewer’s virtual journey through Ptolemy’s universe