This is kind of correct. For the demos they show those will simulate quite slowly due to the soft body / fluid simulation. Their current code does not parallelize soft body/fluid simulation like they do with rigid bodies. Running their fluid sim code now with default settings (which are tuned for speed, not accuracy) gives maybe max 10-100x real time speed (their rigid body sim is magnitudes faster but definitely not faster than existing GPU simulators like Isaac or MJX). Rendering at that quality will also take forever but everyone in this area of research always runs the slow high quality ray tracing pipelines for the demo videos (which run in the 10-100 FPS range depending on settings). Another note is they claim realism but this is only visual realism, there doesn’t exist soft body sim solvers that transfer to the real world accurately enough yet for eg robotics. They are good enough for visual data generation which will be pretty cool.
(full disclosure I work on ManiSkill/SAPIEN which runs on PhysX from NVIDIA, Genesis authors claim they are essentially faster than PhysX by 10-80x).
(full disclosure I work on ManiSkill/SAPIEN which runs on PhysX from NVIDIA, Genesis authors claim they are essentially faster than PhysX by 10-80x).