Panoramic paintings and the various offshoots had become so in demand across Europe and America by the early nineteenth century that the enormous paintings had begun to be displayed in less specialized settings, like community halls, churches, and eventually theaters where they evolved into moving panoramas and became essential to theatrical set design. Moving panoramas were achieved by taking the long, continuous painted canvas scene and rolling each end around two large spool-type mechanisms that could be turned, causing the canvas to scroll across the back of a stage, often behind a stationary scenic piece or object like a boat, horse, or vehicle, to create the illusion of movement and travelling through space. The immense spools were scrolled past the audience behind a cut-out drop-scene or proscenium which hid the mechanism from public view. Robert Fulton obtained a patent for the panorama in 1799 in France; he is credited with helping create the spool mechanisms that allowed for the moving panorama to take hold in theatrical set design, combining the technology of the Industrial Revolution and art for profit, very much a nineteenth century idea.