The story of Dr. John Snow, who in 1854 stopped a cholera epidemic in London, has all the elements of a thriller. An invisible enemy in the water, a city in panic, and an investigator who uses logic against superstition. The proposal is a 3D animated movie that presents him as a film noir detective, connecting clues on a giant map to find the source of the evil: a contaminated water pump. The John Snow Society endorses the historical accuracy of the character.
From paper maps to 3D space: narrative and technology 🎬
3D animation allows transferring Snow's famous dot map to a spatial experience. The technical challenge lies in the art direction: recreating the fog and dirt of Victorian London with volumetrics, while the investigation map overlays dynamically. Lighting, key in film noir, is achieved with particle systems for smoke and volumetric lights that outline the detective's silhouette. Facial animation must convey Snow's cold determination against the desperation of the citizens.
Spoiler: the culprit is a water pump (and not a spell) 💡
In this version, the climax is not a fight with the villain, but a discussion with the health committee to remove the handle from a pump. Imagine the scene: Snow, with his graphs in hand, trying to convince some gentlemen that the problem is not the miasmas in the air, but their favorite water point. The ironic twist is that the great act of heroism is, basically, disabling a public fountain. An ending that demonstrates that sometimes saving lives is administrative work.