Strategic partnership with :em AG 16.03.2022
The Khronos Group is an open, non-profit, member-driven consortium of over 150 industry-leading companies creating advanced, royalty-free interoperability standards for 3D graphics, augmented and virtual reality, parallel programming, vision acceleration and machine learning. Khronos standards include Vulkan®, Vulkan® SC, OpenGL®, OpenGL® ES, OpenGL® SC, WebGL™, SPIR-V™, OpenCL™, SYCL™, OpenVX™, NNEF™, OpenXR™, 3D Commerce™, ANARI™, and glTF™.
Fraunhofer IGD has been a member since many years and the instant3Dhub development team, at that time part of IGD, is and was actively using and contributing to various Khronos standards.
Threedy has now officially joined the Khronos Group to contribute to open standards aiming towards improvement of 3D data virtualisation, provisioning and automation for instant3Dhub applications and services.
Many modern service layer provide 3D data using the GLTF standard, a format also supported by the instant3Dhub architecture. We proposed two major extensions to GLTF over the last years to ease the integration even further:
The current gltf version 2.0 supports two encodings, JSON and binary, supported by instant3Dhub and actively used by customers.
Models are stored in the newly introduced models array, similar to the existing images. The uri can be any combination of URN/URL values with multistage data and content negotiation.
"models": [
{
"uri": "urn:plmdomain:BOMconfig:UUID:223423243983450983454234"
},
{
"uri": "https://datalake.local/part/AF93M0343N.CATPart"
},
{
"uri": "https://s3server.awsgate/object/343431",
"mimeType" : "model/gltf-binary"
}
]A model is instantiated by node.model property. The same model could be used by many nodes, which could have different transformations
"nodes": [
{
"name": "Untransformed External Model",
"model": 2
},
{
"name": "Transformed External Model",
"model": 1,
"translation": [ 20, 0, 0 ]
}
]Additional information can be found in the current extension proposal and gltf spec.
