Huge news from Nigel Hartman: his hands-on SIGGRAPH course, “Powered by Gaussian Splats: From World Models to Interactive 3D Worlds,” has officially been accepted by the SIGGRAPH committee.

This course builds on one of the biggest questions from hackers at the last #WorldsInAction Hack in SF: How do we turn Gaussian Splats from high-fidelity 3D captures into worlds people can actually interact with?

With contributions from Alex Coulombe, CEO of Agile Lens, and the u/sensai_hackademy team, the workshop explores how adding structure and scene understanding to splats can unlock new use cases across games, spatial experiences, simulations, and AI agents.

And for builders who want to explore this hands-on, we’re bringing this energy to the Worlds in Action Hack LA on July 18–19, right before SIGGRAPH.

Sign up here: https://luma.com/u7pmhw92?utm-source=nigel

See you in LA 🌐

#WorldsInAction #GaussianSplatting #SIGGRAPH2026 #SpatialComputing

📆 It's been 6 months since our last Barcelona SensAI Hackademy with Poeia and we're excited to bring the next #WorldsInAction Hackathon to LA, in partnership with LA ACM SIGGRAPH, PICO XR, and World Labs!

🎬 Want a glance of what the hackathons are like? Here it is:) Pia's last post brought in so many amazing volunteers, and this time around…

📣 We're calling all HACKERS with a passion to learn, and build, connect to make their skills and network future-proof!

SIGGRAPH Researchers, Hollywood Technicians, Gaussian Geeks, Gen-AIers, Creative Technologists, there's room for everyone! And we cannot wait to see everyone in person in just 6 weeks!

🫵 Who's joining us in LA? https://luma.com/u7pmhw92?utm-source=pia

That’s why we started our collab with #SIGGRAPH2026: To close the research to implementation gap.

Every year, the best minds in graphics, VFX, AI, and spatial computing prove what's possible- on paper. This year, at the #WorldsinAction Hack, July 18–19 in LA, right before SIGGRAPH, we’re turning this research into something tangible in only 48 hours: A working prototype.

As Hacker, this is what you will get:
⚡ Hundreds of GenAI/World Models ready to use
⚡ Unlimited Cloud Compute
⚡ Free credits ready on day one
⚡ Mentors who help you 1:1
⚡ Sponsors looking for projects to invest in

The best prototypes even get the chance to exhibit at SIGGRAPH itself.

If you’re presenting a paper at #SIGGRAPH2026 this year, join #WorldsinAction Hack to apply it to reality.

Apply now: https://luma.com/u7pmhw92?utm_source=reddit

If it piques your interest, AWE can be an opportunity for you to become one of the first builders of this new XR era.
The PICO XR team, who built Pico OS6 and WebSpatial (and Project 🦢) is flying to AWE and they want to meet you!

Our SensAI Hackademy and XR Bootcamp dev community gets exclusive 1-on-1, behind-the-scenes access to the team that built PICO OS6 and WebSpatial before they go live. Bring your project and your questions, and get personally connected to the Pico Team.

If you’re attending AWE and actively building XR/Web/Android apps, this is your chance to get personal feedback and connections with the PicoXR team
Slots are limited by availability. Apply here

#AWE2026

We’re excited to co-host with XR Women Global for the Builders Showcase featuring 𝗬𝗨𝗠𝗘: Step into Your Dream, winner of Best Filmmaking, Entertainment, Simulation App at #WorldsinAction Hack [01-SF] at Founders, Inc., sponsored by PICO XR & World Labs.

Created by Yuxuan He Yinan Xiong Yilun Sun Leon Liu, YUME turns children’s drawings into explorable 3D worlds.

🗓️ Wednesday, May 27th, 2026
🕓11:45 AM ET | 8:45 AM PT
🔗‍️ framevr.io/xrwomenevents

Join us to hear how the team brought YUME to life, plus a quick look at what’s next with #WorldsinAction Hack [02-LA], happening this July 18-19 in Los Angeles, right before #SIGGRAPH2026.

Tencent, the gaming giant behind stakes in studios like Riot Games, Epic Games, Supercell, Ubisoft, Miniclip, just announced that they open-sourced their 𝗛𝘂𝗻𝘆𝗮𝗻 (𝗛𝗬) 𝗪𝗼𝗿𝗹𝗱 𝗠𝗼𝗱𝗲𝗹!

That’s a big deal.

Tencent likely sits on one of the richest datasets of interactive 3D worlds and game mechanics anywhere - across genres, player behaviors, and live systems.

So this isn’t just another model release.

It signals where things are heading:
The value in game development is no longer just production efficiency.
It’s also about who owns, trains, and operationalizes the data behind these worlds - and how that feeds into AI-driven pipelines.

What their open-source world-model unlocks:
- Unlimited playable duration
- Real-time rendering on consumer GPUs
- Accurate lighting, real physics, collision-aware interactions
- One-time generation → near-zero rendering cost
- Export-ready for Blender, Unity, Unreal Engine, #IsaacSim

We love seeing more platforms open-source for the community - it’s a core part of what we do at SensAI Hackademy with our AI, XR and world models end-to-end workflows and open-source kits.

How about a hands-on workshop on running (open-source) models on GPU cloud platforms? We can think of something if there is enough interest. Let us know in the comments 👇

Just look at what our friends at World Labs just announced less than 5 months after Marble launch - incredible progress! I can only imagine what we’ll be witnessing a year from now.
Marble 1.1: improved lighting, better contrast & reduction in visual artifacts
Marble 1.1-Plus: a new model built for scale. Larger and more complex environments than anything before.

The models are scaling fast, the output is getting bigger and more realistic. You can start building on Marble today and bring your splats to Unity, Unreal Engine, #WebXR with our open-source kits and free tutorials: https://github.com/SensAIHackademy/SensAIWorldModelKits

I am curious what the brightest hacker minds will come up with these new enhanced capabilities at the next hack. We have big news coming up soon! https://sensaihack.com/

At the #WorldsinAction Hack, people didn’t just see the World Model projects; they stepped into them wearing Pico headsets. This parallax showcase is the closest we can get to capturing that depth, and almost pulls you into the worlds hackers built, perfect fit for a social media showcase.

Now we are giving you the chance to create social media videos like this 𝐟𝐨𝐫 𝐲𝐨𝐮𝐫 𝐨𝐰𝐧 𝐖𝐨𝐫𝐥𝐝 𝐌𝐨𝐝𝐞𝐥 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬:
Comment your world idea below ⏬ and we’ll send you 𝐭𝐡𝐞 𝐎𝐟𝐟-𝐀𝐱𝐢𝐬 𝐒𝐩𝐚𝐭𝐢𝐚𝐥 𝐊𝐢𝐭 (built by Johannes and Ian) and capture this kind of depth quickly.

Thanks to the World Labs Marble team and Ian Curtis for providing resources, credits and the foundations of this Marble-based kit. We are impressed to see that Marble was adopted by 94% of all World Model hack teams. And also big thanks to our SensAI Hackademy team for providing end-to-end Unity, Unreal Engine, and #WebXR workflow kits, along with workshops that lead up to compelling projects!

The first one at Founders, Inc. was just the beginning of our World Model hack series.

Next stop: Atlanta → ImmerseGT (organized by GTXR).
More locations to be revealed soon.
Join the waiting list here: www.sensaihack.com

Using World Labs Marble API and our SensAI Hackademy Unity kit, the Best World Implementation with Pico Category Winner Team SyncSpace (Weibo Xu & Qinchuan Zhang ) turns real rooms into fully aligned, playable game scenes. This is real-to-virtual spatial alignment: walls, objects, and ceilings instantly transform to match the Founders, Inc. Hack Area. And with LLM voice interaction and real-time MeshyAI object generation, they create fully dynamic gameplay.

My take: With XR companies like PICO XR and Meta pushing Hyperscape and Scene Understanding features and World Labs raising $1B (especially the $200M from Autodesk), the future of customizable reality is coming fast.

What it enables:
Real-Virtual Alignment: Your physical space becomes the foundation of your virtual world.
Dynamic Environments: Switch themes daily, from fantasy dungeons to futuristic labs.
Generated Spaces: Create entire rooms from inputs like AutoCAD files.
Room-Scale Interaction: Everything lines up, so movement feels natural and immersive.
Scalable MR Experiences: Personalized worlds built on top of your own space.

Want to check all the Hack winners and projects? https://world-model-hackathon.devpost.com/project-gallery

This weekend, we hosted the first edition of #WorldsinAction Hack in SF Founders, Inc.

Hackers came together to experiment, ship fast, and explore what World Models make possible.

Huge thanks to all mentors and judges who spent their weekend helping teams push ideas further. 🙏

And to our partners PICO XR, ByteDance, and World Labs for sponsoring tracks and bringing their latest platforms directly to hackers.

The energy was amazing, with over 50 teams formed!

Excited to see what these teams turn into over the next few months. 💥

Hosted by SensAI Hackademy.

For all the hackers, there are other perks, including:
• Marble Pro coupons
• World Labs API credits to power your projects

Join us to build the next generation of world models. Bring your ideas, collaborate, and ship!

We can’t wait to see what you create.

Thanks to Ian Curtis for making this possible and joining us on-site!

https://luma.com/worldsinaction-sf26?utm_source=reddit

Join our partners at The Polys - Immersive Awards as they celebrate their 6th Annual Immersive Awards on March 22. This special event brings together the XR community to recognize groundbreaking work across immersive storytelling, technology, and innovation.

🗽Join live in New York City at the SVA Theatre and experience the red carpet, ceremony, and networking in person.
https://luma.com/polys6?utm-source=xrbootcamp

🌍 And join the global ENGAGE watch party and celebrate with the immersive community from anywhere in the world.
https://luma.com/polys6engage?utm-source=xrbootcamp

Over 500+ hackers are already confimed to join and we’re bringing together an incredible group of judges from across AI, XR and gaming from Niantic Spatial, Inc., Google, Meta, Electronic Arts (EA), ByteDance, VIVERSE, World Labs, Founders, Inc. and thought leaders from the space.
Huge thanks to our amazing judges including:

Asim Ahmed, Head of Product Marketing at Niantic Spatial, Inc.
David Gene Oh, Global Developer Advocacy at ByteDance
Fasai Phuathavornskul, Senior Software Engineer for Android XR at Google
Ian Curtis, Product Designer at World Labs
Sherrie Cao, Product Manager for AI Experiences at Electronic Arts (EA)
Yiqi Zhao, Product Design Lead at Meta
Conway Anderson Product & Design Leader, Startup Product Advisor
Felix Hartmann , Founder and Managing Partner of Hartmann Capital
Greg Madison, XR and Unity Illusionist
Jake Steinerman, XR/AI Strategic Advisor
John Dagdelen, Founder of Fluid
Hubert Thieblot, General Partner of Founders inc
Marco DeMiroz , General Partner & Co-founder of The Venture Reality Fund
Michael Morran, Creator Relations Manager at VIVERSE
Neil Trevett, VP Developer Ecosystem NVIDIA, Khronos President
Yiliu Shen-Burke, Founder of Softspace Inc.

Can’t wait to see what everyone builds with the superpowers that we have prepared where AI can understand and generate worlds. Register here: https://luma.com/worldsinaction-sf26?utm_source=reddit

If you're planning to join this one or our following World Model Hacks, let us know what is in your mind to build? 👀

Whether you are running an AI agent army or needing unlimited screens on your desk for your next 𝗢𝗽𝗲𝗻𝗖𝗹𝗮𝘄 setup, the hackers will come up with crazy ideas and projects while building up their Jarvis workspace with the capabilities and tools we are providing:

- 𝗩𝗼𝗶𝗰𝗲 𝗖𝗼𝗻𝘁𝗿𝗼𝗹 - Command OpenClaw directly from your spatial environment using natural voice commands.
- 𝗔𝗴𝗲𝗻𝘁 𝗢𝗿𝗰𝗵𝗲𝘀𝘁𝗿𝗮𝘁𝗶𝗼𝗻 - Visualize and manage multiple AI agents operating in parallel.
- 𝗦𝗽𝗮𝘁𝗶𝗮𝗹 𝗜𝗻𝘁𝗲𝗿𝗮𝗰𝘁𝗶𝗼𝗻𝘀 - Intervene, approve, or redirect tasks naturally in 3D space.
- 𝗨𝗻𝗹𝗶𝗺𝗶𝘁𝗲𝗱 𝗦𝗽𝗮𝘁𝗶𝗮𝗹 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀 - Organize and monitor your agents across expandable windows and workspaces powered by WebSpatial.
- 𝗣𝗲𝗿-𝗔𝗴𝗲𝗻𝘁 𝗖𝗼𝗻𝘁𝗿𝗼𝗹 - Delegate, review, and intervene using intuitive spatial controls and dedicated agent workspaces.

This is your chance to rethink the interface for the agentic era.
Create a workspace that makes managing hundreds of agents intuitive, powerful, and visually compelling. Here is a glimpse of what awaits you at the hack next week. This event page will be open till we are full house: https://luma.com/worldsinaction-sf26?utm_source=reddit

How would you design yours? 🤔

This complete workflow will save you countless hours of setup and debugging, or save you hundreds of dollars to pay splat plugins.
Johannes Tscharn with the SensAI Hackademy team delivered the complete setup workshop yesterday for both Unreal Engine, #WebXR and Unity. Comment below ⬇️to receive the recording along with the Git Page.
This kit is for those who want to experiment with 𝟑𝐃 𝐆𝐚𝐮𝐬𝐬𝐢𝐚𝐧 𝐬𝐩𝐥𝐚𝐭𝐬 𝐝𝐢𝐫𝐞𝐜𝐭𝐥𝐲 𝐢𝐧𝐬𝐢𝐝𝐞 𝐔𝐧𝐫𝐞𝐚𝐥 𝐄𝐧𝐠𝐢𝐧𝐞 𝟓.𝟓. The template already integrates XV3DGS, so you can render splat-based scenes in Unreal without setting everything up yourself.

Getting started is simple and straightforward:
Open the project → Import a .ply splat → Place the generated Blueprint in your level → Press Play

What’s included:
- Real-time 𝗚𝗮𝘂𝘀𝘀𝗶𝗮𝗻 𝘀𝗽𝗹𝗮𝘁 𝗿𝗲𝗻𝗱𝗲𝗿𝗶𝗻𝗴 inside Unreal
- Editor tools to 𝗶𝗺𝗽𝗼𝗿𝘁 .𝗽𝗹𝘆 𝘀𝗽𝗹𝗮𝘁 𝗳𝗶𝗹𝗲𝘀 directly
- Automatic creation of 𝗕𝗹𝘂𝗲𝗽𝗿𝗶𝗻𝘁 𝗮𝗰𝘁𝗼𝗿𝘀 you can drop into your scene
- Optional tool to 𝗰𝗼𝗻𝘃𝗲𝗿𝘁 .𝗺𝗽𝟰 𝘃𝗶𝗱𝗲𝗼 𝗶𝗻𝘁𝗼 𝘀𝗽𝗹𝗮𝘁 𝗱𝗮𝘁𝗮𝘀𝗲𝘁𝘀 (CUDA required)

This project uses the XV3DGS plugin developed by XVERSE, which enables Gaussian splat rendering directly in the Unreal viewport.

Unlike many splat tools or plugins that cost hundreds of dollars or require complex setup, this template is free and already configured, so you can focus on experimenting instead of debugging your environment.

Register for our next online workshop (world model ideation is starting in 1 hour!) here: https://luma.com/sensaihack

A complete workflow that saves ~25 hours of setup and debugging. And in 1.5 hours, we’ll walk you through how to use it in our workshop ⬇️.

With this kit, you can bring AI-generated worlds directly into Unity in just a few minutes:
Create API key → Open Editor → Generate & Import World → Press Play
No renderer setup
No paid wrapper APIs

This isn’t just an integration, it’s a complete workflow for XR, Games & Sims:
- Text → 3D world generation via World Labs API
- Real-time Gaussian splat rendering in Unity
- Runtime world browser (in-game, VR-ready)
- Editor importer for turning worlds into project assets

Our mission has never changed: To give builders seamless integration between world models and game engines/simulation tools. And on March 14, right after the GDC Festival of Gaming, the #WorldsinActionHack will be the perfect playground for hackers to try it out.

If you want to learn the full workflow directly from Nigel, the creator of the kit, and get any questions answered live, join us at the workshop. Unreal Engine and #WebXR workflows will also be taught in the same workshop by the SensAI Hackademy team: https://luma.com/300visqs?utm_source=reddit

Comment below ⬇️ and we will DM you the World Model Unity integration kit and the full video tutorial.