Meet Meschers, MIT's Tool for Building Paradoxical Digital Objects

0
7K

Meet “impossibagel,” a physically impossible bagel that mathematicians use to resolve intricate geometry problems. But impossibagel—and other “impossible objects” in mathematics—is notoriously difficult to replicate, and researchers haven’t been able to fully tap into their mathematical potential. That may no longer be a problem, thanks to a new tool.

On Monday, researchers at MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) announced “Meschers,” software capable of visualizing an intricate, 2.5-dimensional representation of impossible objects. In addition to creating aesthetically quirky objects, Meschers could eventually assist in research across geometry, thermodynamics, and even art and architecture, according to the researchers. The paper, set for publication in ACM Transactions on Graphics, will be presented at the SIGGRAPH Conference next week.

“Impossible objects are constructions which cannot exist in real life and instead only exist in our perception,” Ana Dodik, study lead author and PhD student at MIT, told Gizmodo in an email. “They are interesting because our visual system can make sense of them to some extent, but they cannot exist in real life without bending or cutting them.”

Meschers (an amalgam of “meshes” and the artist M.C. Escher) offers a way to represent impossible shapes that is “consistent with our perception and that lets us do familiar ‘3D’ processing operations on them, despite them not being 3D,” she explained.

Penrose Triangle
A Penrose Triangle is a triangular impossible object. © Ana Dodik/MIT CSAIL/Meschers

For the program, Dodik and her colleagues wove together calculus and certain aspects of the human visual system. For instance, when looking at an impossible object like the Penrose Triangle, our eyes search for something called “local consistency,” or, simply, the parts of this inconsistent shape that “make sense” to us. For the Penrose Triangle, those parts are its three L-shaped corners. Separately, these sections make sense, but when we try to connect them as a globally consistent shape, things don’t quite add up. 

As such, recreating impossible objects in real life requires the object to be cut or bent, Dodik said. For computational purposes, this gave rise to issues that potentially interfered with “geometry operations, such as distance computation,” according to the researchers. Meschers addresses this complication by significantly relaxing the consistency requirement on the global scale. Instead, the program focuses on replicating the locally consistent subsections of the object.

The program also supports different lighting conditions, which can influence how well the impossible depths of these objects are represented in computational renders. The resulting shape, according to the paper, is sufficient for “a wide variety of classic geometry processing algorithms…in a way that aligns with our perceptual intuitions.” 

Impawssible Dogs Meschers
Rendering of the “Impawssible Dog” using Meschers, demonstrating how some lighting conditions create a stronger illusory percept than others. © Ana Dodik/MIT CSAIL/Meschers

For instance, the impossibagel would be an ideal structure for geometry researchers calculating the distance between two points on an incomprehensible surface. Alternatively, it could be used to determine how heat spreads over curved surfaces. Meschers also allows the user to inversely render an impossible object, such as deforming a torus (donut-like shape) into a Penrose Triangle, making it easier for artists or architects to play around with these unusual shapes for their own purposes.

Meschers Heart Render
Laplacian smoothing of the per-vertex 2D positions of a mescher (left), per-edge depth differences (center), or both (right). © Ana Dodik/MIT CSAIL/Meschers

Perhaps most importantly, it’s a way to do math that’s both fun and insightful. And it’s also great for decorating coffee mugs, as study senior author Justin Solomon shared with Gizmodo. “Our research group at MIT is the Geometric Data Processing (GDP) group, so I had this image printed on coffee mugs for all our team members,” he said. “It’s a perfect logo for our group!”

Meschers is a publicly available resource, and the code will be released shortly, the researchers say. So yes, you’ll soon be able to make an impossibagel for yourself—not to eat, but to stimulate the mathematical part of your brain!

Like
Love
Haha
3
Site içinde arama yapın
Kategoriler
Read More
News
Loài cua đặc biệt sống trên cạn và biết leo cây, giá hơn 10 triệu/con nhưng rất hiếm, không phải lúc nào cũng có
Cua dừa là một loài cua lớn sinh tồn ở các đảo thuộc...
By NiceBox2363 2025-07-11 09:40:04 0 9K
News
Tiếng Việt có một từ rất ý nghĩa mà tiếng Anh không từ nào đủ sức nặng để dịch được, đó là?
Tiếng Việt là kho tàng ngôn ngữ phong phú với vốn từ...
By aiden_mcdermott_iRrX 2025-06-21 02:57:06 0 9K
News
Mức sàn xét điểm đánh giá năng lực, tư duy vào 12 trường Kinh tế top đầu năm 2025
Điểm đánh giá năng lực và đánh giá tư duy là các bài...
By MainFig1036 2025-07-10 03:13:04 0 9K
News
Đây là thời điểm được chi trả hàng tháng
Chính sách trợ cấp hưu trí xã hội Theo Khoản 2, Điều...
By KyllWolf 2025-08-08 01:18:08 0 8K
News
Người có tóc bạc sớm ít có nguy cơ mắc ung thư? Câu trả lời ở đây
Cô Vương, 38 tuổi, vốn luôn được mọi người xem là một...
By tokaygecko23 2025-06-26 08:53:04 0 10K