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Reverse-architecture

How can we model a period theatre space today?

3D restitution of a small marionnette theatre
3D restitution of a small marionnette theatre based on a miniature by Blarenberghe.
Marionnette theatre
Marionnette theatre in the 1760s at the Saint-Germain Fair. Miniature by Louis-Nicolas van Blarenberghe mounted on a snuffbox by Joseph-Etienne Blerzy, Metropolitan Museum of Art.
Analysis of the convergence of perspective
Analysis of the convergence of perspective lines in the miniature, showing the distortion of the principles of perspective.

A question of choice

In order to create a three-dimensional model of a theatre corresponding to the miniature on this snuff box, everything comes down to interpretation. What were the real dimensions of this tiny theatre? Where was the entrance situated? How did spectators access the amphitheater? These features are indicated in a cursory manner by the artist, and must be fleshed out by experts who can help design solutions that are plausible both architecturally and historically.

Longitudinal cross-section and ground plan
Longitudinal cross-section and ground plan wich served as the basis of the 3D mode- ling of a projected theatre from 1772. Held at the Archives Nationales.

No such thing as an innocent image

When the artist created this painting, he wanted to give form to his own vision of this marionette theatre. A perspectival analysis of the painting illustrates the degree to which he “cheated” by multiplying the number of vanishing points, resulting in an architecturally impossible space. In classical perspective, all parallel straight lines meet at a single vanishing point. In this miniature, some straight lines remain parallel, whereas others meet up at differing points.

Vanishing point

Architecture and audiences

This cross-section of a virtual model of a theatre for the Saint-Germain Fair from 1772 shows different spaces that would have been accessible to the public.The organization of the boxes (loges) overlooking the parterre – two spaces occupied by members of different social groups – gives rise to a large variety of interactions: glances, solicitations, seductions… as well as hurled objects and shouting!

Longitudinal cross-section of a theatre model
Longitudinal cross-section of a theatre model for the Saint-Germain Fair from 1772 showing the different interior spaces. Virtual model created from plans held at the Archives Nationales. All architectural renderings by Paul François.