Immersive media streaming prioritized by frequency of asset reuse
摘要
說明書
Technologies such as ORBX by OTOY, Universal Scene Description by Pixar, and Graphics Language Transmission Format 2.0 (glTF2.0) specification written by the Khronos 3D Group embody scene graphs as a format suitable for representing visual immersive media that is created using computer generated techniques, or naturally captured content for which deep learning or photogrammetry techniques are employed to create the corresponding synthetic representations of a natural scene (i.e., not essential for real-time distribution applications).
ORBX by OTOY is one of several scene graph technologies that is able to support any type of visual media, timed or untimed, including ray-traceable, legacy (frame-based), volumetric, and other types of synthetic or vector-based visual formats. ORBX is unique from other scene graphs because ORBX provides native support for freely available and/or open source formats for meshes, point clouds, and textures. ORBX is a scene graph that has been intentionally designed with the goal of facilitating interchange across multiple vendor technologies that operate on scene graphs. Moreover, ORBX provides a rich materials system, support for Open Shader Language, a robust camera system, and support for Lua Scripts. ORBX is also the basis of the Immersive Technologies Media Format published for license under royalty-free terms by the Immersive Digital Experiences Alliance (IDEA). In the context of real time distribution of media, the ability to create and distribute an ORBX representation of a natural scene is a function of the availability of compute resources to perform a complex analysis of the camera-captured data and synthesis of the same data into synthetic representations.
