RV contains professional-grade media player technology that allows VFX and animation artists, and production teams to seamlessly view high-resolution images and sequences in real time and compare different versions while collaborating on projects.
https://adsknews.autodesk.com/news/rv-open-source
Aurora is an interactive path tracing renderer that leverages graphics processing unit (GPU) hardware ray tracing. As an interactive renderer, it supports rapid design iteration in a viewport. Aurora has a USD Hydra render delegate called HdAurora, which allows it to be used from a USD Hydra scene delegate within the USD ecosystem. Aurora relies on hardware accelerated raytracing; see the system requirements below. It aims to be functional across hardware vendors and operating systems.
https://forums.autodesk.com/t5/engineering-hub-blog/aurora-a-real-time-path-tracing-renderer-that-enables-fast/ba-p/11322421