Experts at Fraunhofer IGD in Darmstadt, working closely with the Khronos Group industrial consortium, have developed a new standard for material definition when transferring 3D models.
(Darmstadt) Faster, more compact, portable, more realistic – in future the gITF 2.0 specification will simplify physically based rendering (PBR) for developers. The new gITF 2.0 specification is an upgradeable, runtime-neutral open standard format for transfer of 3D models. The standard enables developers to transfer 3D models in a more compact manner with a quicker loading time, and now also includes a specification for the definition of materials based on physical properties. The team of experts at the Fraunhofer Institute for Computer Graphics Research IGD in Darmstadt assembled around Dr. Johannes Behr made a significant contribution to the development of the new standard.
Benefits of the new specification
The predecessor, gITF 1.0, has been upgraded to included standards for physically based rendering (PBR). As a result, developers can describe materials portably and with continuity. The new specification is already compatible with an increasing number of graphics APIs. This is also of benefit to developers from the industrial sector, as the increased uniformity and API neutrality means they are now in a position to use PBR material models. Fraunhofer employees working on the projects InstantUV and instant3Dhub already make use of the benefits of the specification. Instant3Dhub is a central visualization as a service (VaaS) solution, and was the focus of BOF presentations in recent years. This year, the benefits of instantUV are becoming evident: “Using the expressive, portable and PBR-compatible materials which gITF 2.0 facilitates, we can now easily export optimized models from our InstantUV software for all renderers,” explains Max Limper, head of the InstantUV project at Fraunhofer IGD. Limper will be presenting the glTF 2.0 export in InstantUV at the Khronos Siggraph 2017 glTF-BOF in Los Angeles.
Support from developer
Many graphic engine developers now use gITF 2.0 to enhance transferability and the visual quality. Khronos, the gITF Working Group and the development community are developing a corresponding range of tools and example codes, including multiple gITF 2.0 model and rendering examples. This will make introduction to and handling of the new specification easier, especially for new developers.
The Khronos Group is an open industry consortium of leading hardware and software companies which develops open standards that facilitate the generation and acceleration of parallel data processing and graphics as well as vision and neuronal networks on various platforms and devices.
July 30 through to August 3, Los Angeles, CA
Los Angeles Convention Center
Khronos BOF glTF
August 2, 2017, 11:00 – 12:00 h, JW Marriott LA Live, Platinum, Ballroom F-J
„glTF 2.0 Export in InstantUV“ presentation, Max Limper