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Zero teleoperation. Zero real-world data. ➔ Autonomous humanoid loco-manipulation in reality. Introducing VIRAL: Visual Sim-to-Real at Scale. We achieved 54 autonomous cycles (walk, stand, place, pick, turn) using a simple recipe: 1. RL 2. Simulation 3. GPUs Website: Arxiv: Deep dive with me: 🧵
268,550 просмотров • 11 месяцев назад •via X (Twitter)
Комментарии: 24

Data is the bottleneck of robot learning. The community relies heavily on expensive, slow, human-collected data. We flipped the script. VIRAL trains entirely inside NVIDIA Isaac Lab. We accelerate physics by 10,000x real-time with photorealistic rendering. No human data required. 2/

The Pipeline: Teacher: We train a privileged teacher with full state access in sim. Student: We distill a vision-based student policy from the teacher. This uses large-scale simulation with tiled rendering, combining online DAgger and Behavior Cloning across tens of GPUs. 3/

Scale is not optional. We scaled visual sim-to-real compute up to 64 GPUs. We discovered that for long-horizon tasks (like loco-manipulation), large-scale simulation isn't just "nice to have"—it is necessary for convergence and robustness. 4/

Bridging the Gap. To enable smooth transfer, we performed System Identification (SysID) on our 3-fingered dexterous hands. The difference is night and day. Below is the overlay of simulation vs. real-world physics before and after SysID. 5/

The Free Lunch. Sim-to-real is hard. But once you solve it, you get generalization for free. VIRAL handles diverse spatial arrangements and visual variations without any real-world fine-tuning. See the stress tests: 6/

The Journey. This wasn't an overnight success. It took 6 months of building visual sim, distributed training, and infra from scratch. Robotics is hard. We’ve documented our failures and our path to success here: 7/

VIRAL: Visual Sim-to-Real at Scale for Humanoid Loco-Manipulation Team: @TairanHe99, Zi Wang, @HaoruXue, @BenQingwei, @zhengyiluo, @_wenlixiao, @_ye_yuan, @XingyeDa, Fernando Castañeda, Shankar Sastry, @ChangliuL, @GuanyaShi, GEAR Leads: @DrJimFan, @yukez Website: Paper:

Training at scale.

So, all you need is scale?

Do you know when you'll be able to publish the code? It looks really good and big up all of you! <3

very very cool!

Impressive achievement! Excited to learn more.

Kill all robots

This is insanely impressive. One of the best sim2real zero shot transfer I've seen. Great work team.

Sim2real ftw 🙌

lol good subject, arbitrarily silly name ..

What kind of performance did you get from the tiled renderer? At what resolution?

Impressive strides in sim-to-real tech! Excited to see where this leads.

🫡

Very nice work! Did you give any talk in conferences or universities? A good talk will help a lot.

Impressive results with VIRAL! The future of robotics is here.

VIRAL is going to push a lot of teams to rethink their pipelines

Sim2real ftw 🙌

Impressive work! Excited to learn more about your approach.
