lukehollis
@lukehollis.bsky.social
RL and 3d graphics | applied ai | founder struct | teaching weird physics simulations | prev CS / 3d @ Harvard, MIT
Reposted by lukehollis
New post on modeling astrodynamics at specific epochs, with SPICE ephemeris kernels! I hope to add hooks to some Julia packages that will make this kind of modeling quick to write. 🧮
loopy.codes - Modeling With Ephemeris
Easy model building at any epoch!
loopy.codes
August 26, 2023 at 4:20 PM
New post on modeling astrodynamics at specific epochs, with SPICE ephemeris kernels! I hope to add hooks to some Julia packages that will make this kind of modeling quick to write. 🧮
Reposted by lukehollis
Hubble Space Telescope images of interstellar comet 3I/ATLAS are out! These were taken 5 hours ago. Plenty of cosmic rays peppering the images, but the comet's coma looks very nice and puffy. Best of luck to the researchers trying to write up papers for this... archive.stsci.edu/proposal_sea... 🔭
July 21, 2025 at 9:28 PM
Hubble Space Telescope images of interstellar comet 3I/ATLAS are out! These were taken 5 hours ago. Plenty of cosmic rays peppering the images, but the comet's coma looks very nice and puffy. Best of luck to the researchers trying to write up papers for this... archive.stsci.edu/proposal_sea... 🔭
fish multi-agent RL eating food and running away from shark
migrating ML-Agents from Unity to three.js+torch
migrating ML-Agents from Unity to three.js+torch
July 17, 2025 at 11:09 PM
fish multi-agent RL eating food and running away from shark
migrating ML-Agents from Unity to three.js+torch
migrating ML-Agents from Unity to three.js+torch
RL+LLM now running in a minecraft sandbox in the Three.js ML-Agents
agents use their trained policies as well as collaborate via an LLM to trade resources to achieve complex crafting tasks with a memory stream
up on gh, can run locally with ollama & gemma3n
agents use their trained policies as well as collaborate via an LLM to trade resources to achieve complex crafting tasks with a memory stream
up on gh, can run locally with ollama & gemma3n
July 17, 2025 at 11:08 PM
RL+LLM now running in a minecraft sandbox in the Three.js ML-Agents
agents use their trained policies as well as collaborate via an LLM to trade resources to achieve complex crafting tasks with a memory stream
up on gh, can run locally with ollama & gemma3n
agents use their trained policies as well as collaborate via an LLM to trade resources to achieve complex crafting tasks with a memory stream
up on gh, can run locally with ollama & gemma3n
Dynamic soaring glider riding thermal wind patterns implemented with RL
The latest migrating away from Unity ML-Agents to Three.js + torch in the backend
The latest migrating away from Unity ML-Agents to Three.js + torch in the backend
July 11, 2025 at 2:55 PM
Dynamic soaring glider riding thermal wind patterns implemented with RL
The latest migrating away from Unity ML-Agents to Three.js + torch in the backend
The latest migrating away from Unity ML-Agents to Three.js + torch in the backend
I can't open my old Unity projects anymore without an Enterprise license, is anyone doing ML-Agents but in Three.js yet?
June 29, 2025 at 1:15 PM
I can't open my old Unity projects anymore without an Enterprise license, is anyone doing ML-Agents but in Three.js yet?
Reposted by lukehollis
Yes! Thank you! Seems like an interesting thing to read again in our turbulent times. mused.com/stories/973/...
June 23, 2025 at 1:35 AM
Yes! Thank you! Seems like an interesting thing to read again in our turbulent times. mused.com/stories/973/...
working on training an RL agents from a text prompt, this is a pizza delivery truck tiny model
so text prompt designs reward, obs & action spaces, trains about 30k steps in browser simulator google earth 3d map tiles
so text prompt designs reward, obs & action spaces, trains about 30k steps in browser simulator google earth 3d map tiles
June 19, 2025 at 6:54 AM
working on training an RL agents from a text prompt, this is a pizza delivery truck tiny model
so text prompt designs reward, obs & action spaces, trains about 30k steps in browser simulator google earth 3d map tiles
so text prompt designs reward, obs & action spaces, trains about 30k steps in browser simulator google earth 3d map tiles
Reposted by lukehollis
El Map Simulator de Mused mapea cualquier evento histórico (real o ficticio) siempre que los lugares o territorios sean reales.
He probado con:
-Batalla de las Termópilas
-Frankenstein
-La Odisea
Podéis conversar con sus protagonistas, entre otras cosas.
mused.com/map
He probado con:
-Batalla de las Termópilas
-Frankenstein
-La Odisea
Podéis conversar con sus protagonistas, entre otras cosas.
mused.com/map
June 10, 2025 at 3:40 PM
El Map Simulator de Mused mapea cualquier evento histórico (real o ficticio) siempre que los lugares o territorios sean reales.
He probado con:
-Batalla de las Termópilas
-Frankenstein
-La Odisea
Podéis conversar con sus protagonistas, entre otras cosas.
mused.com/map
He probado con:
-Batalla de las Termópilas
-Frankenstein
-La Odisea
Podéis conversar con sus protagonistas, entre otras cosas.
mused.com/map
now supporting king kong, cthulu, and giant robots in my map creator tool
May 31, 2025 at 6:38 PM
now supporting king kong, cthulu, and giant robots in my map creator tool
Reposted by lukehollis
there should be more historical city builder simulation games focused on developing a small medieval village. yes i know that describes like 70 games. it's not enough. it will never be enough
May 25, 2025 at 4:32 PM
there should be more historical city builder simulation games focused on developing a small medieval village. yes i know that describes like 70 games. it's not enough. it will never be enough
Reposted by lukehollis
Con mused puedes simular situaciones en un mapa, su evolución y consecuencias : desde un apagón en Zaragoza mused.com/map/sim/7004... a la invasión de alienígenas... mused.com/map/sim/7007...
May 22, 2025 at 11:54 AM
Con mused puedes simular situaciones en un mapa, su evolución y consecuencias : desde un apagón en Zaragoza mused.com/map/sim/7004... a la invasión de alienígenas... mused.com/map/sim/7007...
Reposted by lukehollis
This feels like SimCity, but fueled by AI. Create and simulate your own cities and natural disasters, including events from history or from science fiction. I used it earlier to create the fictional city of one of my stories.
mused.com/map/
mused.com/map/
Map Simulation Platform | Spatial Intelligence
mused.com
May 27, 2025 at 1:10 AM
This feels like SimCity, but fueled by AI. Create and simulate your own cities and natural disasters, including events from history or from science fiction. I used it earlier to create the fictional city of one of my stories.
mused.com/map/
mused.com/map/
Testing out chat with CAD file
Project engineers should have superpowers like software engineers 🚀
Project engineers should have superpowers like software engineers 🚀
May 27, 2025 at 5:10 AM
Testing out chat with CAD file
Project engineers should have superpowers like software engineers 🚀
Project engineers should have superpowers like software engineers 🚀
New timeline component added to the map simulator I've been building
Now you can step through simulations interactively and learn about them
Now you can step through simulations interactively and learn about them
May 26, 2025 at 6:10 PM
New timeline component added to the map simulator I've been building
Now you can step through simulations interactively and learn about them
Now you can step through simulations interactively and learn about them
You can use the MARL traffic / human behavior sims I've been building on your own maps! Repo on gh
May 15, 2025 at 11:33 PM
You can use the MARL traffic / human behavior sims I've been building on your own maps! Repo on gh
Simulations now interactively build on map and build way faster with Sambanova
Went from 3-5 mins to 30ish seconds
Went from 3-5 mins to 30ish seconds
May 15, 2025 at 2:50 PM
Simulations now interactively build on map and build way faster with Sambanova
Went from 3-5 mins to 30ish seconds
Went from 3-5 mins to 30ish seconds
Okay urban sim MARL model deployed! Still pretty early, will get more performant and add more people
Next up Godzilla
Next up Godzilla
May 7, 2025 at 2:51 PM
Okay urban sim MARL model deployed! Still pretty early, will get more performant and add more people
Next up Godzilla
Next up Godzilla
got up to 100k agents running realtime brining the city to life! ✊
May 4, 2025 at 5:13 PM
got up to 100k agents running realtime brining the city to life! ✊
Traffic sim now in! MARL model, elevation api costs for routes are brutal
Going to figure out a workaround for the elevation api and then make them interact with whatever's simulated on the map!
Going to figure out a workaround for the elevation api and then make them interact with whatever's simulated on the map!
May 3, 2025 at 1:12 PM
Traffic sim now in! MARL model, elevation api costs for routes are brutal
Going to figure out a workaround for the elevation api and then make them interact with whatever's simulated on the map!
Going to figure out a workaround for the elevation api and then make them interact with whatever's simulated on the map!
Launched text to simulate anything in 3d on a map! I'm actually really excited about this
You can simulate and conduct route risk analysis with millions of datapoints from social media and news using a custom world model that I trained on historical incident data
Out on homepage now 🔥
You can simulate and conduct route risk analysis with millions of datapoints from social media and news using a custom world model that I trained on historical incident data
Out on homepage now 🔥
April 22, 2025 at 7:55 PM
Launched text to simulate anything in 3d on a map! I'm actually really excited about this
You can simulate and conduct route risk analysis with millions of datapoints from social media and news using a custom world model that I trained on historical incident data
Out on homepage now 🔥
You can simulate and conduct route risk analysis with millions of datapoints from social media and news using a custom world model that I trained on historical incident data
Out on homepage now 🔥
Anyone else still having datetime woes w/BC dates in Django/postgres? Built a package to extend django's native support to match postgres: low: 4713 BC
high: 294276 AD
high: 294276 AD
April 13, 2025 at 6:16 PM
Anyone else still having datetime woes w/BC dates in Django/postgres? Built a package to extend django's native support to match postgres: low: 4713 BC
high: 294276 AD
high: 294276 AD
Announcing: Chat to simulate anything on a map! 🗺️
Excited to share my latest work -- chat to a map to create a 3d simulation of anything from supply chain to route risk analysis to historical events.
Link following..
Excited to share my latest work -- chat to a map to create a 3d simulation of anything from supply chain to route risk analysis to historical events.
Link following..
April 8, 2025 at 4:22 PM
Announcing: Chat to simulate anything on a map! 🗺️
Excited to share my latest work -- chat to a map to create a 3d simulation of anything from supply chain to route risk analysis to historical events.
Link following..
Excited to share my latest work -- chat to a map to create a 3d simulation of anything from supply chain to route risk analysis to historical events.
Link following..
Breaking out of the 3d simulations work for GDC! Hanging out at Expo today
March 20, 2025 at 9:18 PM
Breaking out of the 3d simulations work for GDC! Hanging out at Expo today