Artist Joanie Lemercier has penned a information on turning folded paper right into a fascinating piece of wall artwork — with intelligent computational projection mapping offering an ever-shifting mild sample following its traces.
“I’ve been doing artistic workshops with children and faculties for years (with 8-10 years previous) and this may be a straightforward and artistic exercise to do at house,” Lemercier explains of the challenge, based mostly on a collection of installations dubbed Paper and Gentle. “All it is advisable make the sculpture is paper, tape, and a little bit of time. For the mapping half, you’ll want a projector and pc to animate your origamis with mild.”
This artwork set up is nothing however paper — illuminated by a browser-based projection mapping instrument. (📹: Joanie Lemercier)
The artwork itself is nothing greater than folded paper, formed as pyramids of various sizes. These are hooked up to a wall to create an array of angular hills and valleys, shaded on both sides in keeping with the course of the sunshine which hits them — and it is directed mild that types the second a part of the set up.
“In an effort to [implement] the precept of projection mapping, I barely modified the code from Methodology Draw, a instrument developed by Mark MacKay. It really works in any pc and browser,” Lemercier explains. “Be certain that the projection space covers the origami. Open the mapping instrument in a browser. Hint the sides. Repeat till your complete construction is mapped.”
The vertices of every pyramid are mapped by hand, utilizing a browser-based instrument — which additionally runs the animation. (📹: Joanie Lemercier)
Whereas some projection mapping initiatives use a depth-sensing digicam to automate the method, or a standard two-dimensional digicam with a pc imaginative and prescient algorithm, Lemercier’s strategy is handbook — however no much less efficient. As soon as the vertices of the sculpture have been mapped, this system might be switched into animation mode — utilizing shader code from Patricio Gonzalez Vivo to light up the traces in an ever-shifting sample.
The challenge is documented in full on Instructables, whereas the in-browser mapping instrument is obtainable on Lemercier’s web site.