The Fraunhofer Institute for Computer Graphics Research IGD will present three publications at SIGGRAPH 2018, which describe trend-setting developments in 3D printing, 3D web visualization, and optical material identification. The accepted publications confirm the institute has an international leading position in research relevant to computer graphics.
Two papers and a poster from the Fraunhofer IGD were accepted this year to SIGGRAPH 2018, which takes place from August 12 to 16 in Vancouver. As the world’s largest conference in computer graphics, SIGGRAPH is the most important international science forum for virtual reality, mixed reality, animation, gaming, and digital art.
Professor Philipp Urban describes in his paper titled “3D Printing Spatially Varying Color and Translucency” a technology that opens up completely new possibilities in 3D printing. In essence, together with his colleagues Alan Brunton, Can Ates Arikan, and Tejas Madan Tanksale, he developed an algorithm that can be used to achieve and combine full color, translucencies, and transparencies. This results in a variety of application scenarios in the film and medical technology industries, for example. In his paper, Urban shows, among other things, how it is possible to realistically reproduce translucent materials such as skin. Engineers and designers can create the corresponding 3D models with conventional modeling tools and save them in standard file formats. It is also conceivable to copy objects made of different materials. Users and customers can now print millions of designs that are already available on the Internet. The technology is integrated into the 3D printer driver Cuttlefish developed by Fraunhofer IGD and customers are already using it.
The second paper “Box Cutter: Atlas Refinement for Efficient Packing via Void Elimination” deals with a method for optimizing textured 3D models. Dr. Max Limper and his colleagues Nicholas Vining and Alla Sheffer of the University of British Columbia UBC show how the Box Cutter software is able to display surfaces of 3D models in more detail without requiring more storage capacity. What experts used to arrange manually in the so-called Atlas with great effort is now done with an algorithm. Limper describes 3D visualizations, computer games, VR applications, and 3D representations in the browser as conceivable areas of application. Overall, the potential applications for 3D models are significantly expanding due to the reduced loading time.
In addition to the two publications, a poster by the Fraunhofer IGD was also accepted. Under the title “Automated Acquisition and Real-time Rendering of Spatially Varying Optical Material Behavior”, Martin Ritz and Pedro Santos will present a new, fully automated method for the physically realistic acquisition and visualization of optical material behavior. Depending on the direction of light, object surfaces vary considerably – a major challenge in the production of realistic 3D models so far. The new method transports the light-dependent surface changes into the virtual space and, in contrast to previous approaches, enables rendering in real time. Due to the massive savings in storage requirements, the acquired data can be transferred to any 3D model. Application examples can be found in the automotive industry, where various interior materials can be tested virtually under realistic lighting conditions before prototype production, as well as in architecture.
Fraunhofer IGD invites to a networking event on August 15 in Vancouver where guests can discuss these technologies and their applications with our experts. The software instant3Dhub, which is scalable on all devices and visualizes 3D objects, will also be demonstrated using augmented reality. The 3D CAD data is used directly for tracking without manual adjustments. The event will also feature software that enables computer-aided modeling of graded properties and multiple materials for 3D components and 3D print production.