The new Mercedes-Benz Stadium, home to the Atlanta Falcons and Atlanta United FC soccer team starting in 2017, is a state-of-the-art facility that will feature sweeping views of the Atlanta skyline; flexible capacity of up to 83,000 seats; a retractable roof inspired by the oculus in the ancient Roman Pantheon; and a 360-degree, five-story-tall video board that will be the largest in the NFL—and the world.
by Yizhong Zhang, Chunji Yin, Changxi Zheng and Kun Zhou
Technical Paper at ACM SIGGRAPH 2015
Hydrographic printing is a well-known technique in industry for transferring color inks on a thin film to the surface of a manufactured 3D object. It enables high-quality coloring of object surfaces and works with a wide range of materials, but suffers from the inability to accurately register color texture to complex surface geometries. Thus, it is hardly usable by ordinary users with customized shapes and textures.
We present computational hydrographic printing, a new method that inherits the versatility of traditional hydrographic printing, while also enabling precise alignment of surface textures to possibly complex 3D surfaces. In particular, we propose the first computational model for simulating hydrographic printing pro- cess. This simulation enables us to compute a color image to feed into our hydrographic system for precise texture registration. We then build a physical hydrographic system upon off-the-shelf hardware, integrating virtual simulation, object calibration and controlled immersion. To overcome the difficulty of handling complex surfaces, we further extend our method to enable multiple immersions, each with a different object orientation, so the combined colors of individual immersions form a desired texture on the object surface. We validate the accuracy of our computational model through physical experiments, and demonstrate the efficacy and robustness of our system using a variety of objects with complex surface textures.
see also “Water Transfer Printing”
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