David Levin
@diwlevin.bsky.social
Sometimes professor sometimes nvidia research scientist all-the-time loud mouth
Opinions are my own and do not represent either of my employers
Opinions are my own and do not represent either of my employers
One last physics assignment, this time by my student Ty Trusty, implementing vertex-block descent: github.com/tytrusty/pba...
Get's about 5 chickens per second on my workstation GPU.
Get's about 5 chickens per second on my workstation GPU.
November 20, 2025 at 10:53 PM
One last physics assignment, this time by my student Ty Trusty, implementing vertex-block descent: github.com/tytrusty/pba...
Get's about 5 chickens per second on my workstation GPU.
Get's about 5 chickens per second on my workstation GPU.
My worldview is being challenged
The reviews received for my ICLR submission are higher quality than reviews I received for my SIGGRAPH and SIGGRAPH Asia submissions. All reviewers seemed to have actually read the paper and articulated their (reasonable) concerns in a constructive format.
The reviews received for my ICLR submission are higher quality than reviews I received for my SIGGRAPH and SIGGRAPH Asia submissions. All reviewers seemed to have actually read the paper and articulated their (reasonable) concerns in a constructive format.
November 13, 2025 at 6:37 PM
My worldview is being challenged
The reviews received for my ICLR submission are higher quality than reviews I received for my SIGGRAPH and SIGGRAPH Asia submissions. All reviewers seemed to have actually read the paper and articulated their (reasonable) concerns in a constructive format.
The reviews received for my ICLR submission are higher quality than reviews I received for my SIGGRAPH and SIGGRAPH Asia submissions. All reviewers seemed to have actually read the paper and articulated their (reasonable) concerns in a constructive format.
When this baby hits 88 revolutions per minute your going to see some serious sh!t.
November 11, 2025 at 2:24 AM
When this baby hits 88 revolutions per minute your going to see some serious sh!t.
Graduate student led quest to start Canada-Wide National Laboratories focused on applied science/technology research continues ... you can visit appliedcomputing.ca to read the original letter of intent and a proposal document, plus sign said letter to show your support.
Institute for Applied Computing - Letter
appliedcomputing.ca
November 10, 2025 at 9:16 PM
Graduate student led quest to start Canada-Wide National Laboratories focused on applied science/technology research continues ... you can visit appliedcomputing.ca to read the original letter of intent and a proposal document, plus sign said letter to show your support.
This is the best way to illustrate "I don't know what the f#@$ is going on" I've ever seen.
AI could end scarcity, end humanity - or boost trend growth by 0.2 percentage points
November 7, 2025 at 4:26 PM
This is the best way to illustrate "I don't know what the f#@$ is going on" I've ever seen.
New fluid simulation assignment for CSC417 just dropped. This one by my PhD student Jonathan Panuelos. I had always intended to have fluid sim in the previous course but never got around to writing the code. Maybe for the best, because Jonathan's version is so good.
github.com/panuelosj/pb...
github.com/panuelosj/pb...
GitHub - panuelosj/pba-assignment-fluids: Fluids Assignment Spec for UofT Course CSC417 Physics-Based Animation
Fluids Assignment Spec for UofT Course CSC417 Physics-Based Animation - panuelosj/pba-assignment-fluids
github.com
November 7, 2025 at 4:00 PM
New fluid simulation assignment for CSC417 just dropped. This one by my PhD student Jonathan Panuelos. I had always intended to have fluid sim in the previous course but never got around to writing the code. Maybe for the best, because Jonathan's version is so good.
github.com/panuelosj/pb...
github.com/panuelosj/pb...
From the Verge … there’s a word for this, when someone claims they own your entire personhood. It eludes me …
November 5, 2025 at 3:12 PM
From the Verge … there’s a word for this, when someone claims they own your entire personhood. It eludes me …
My PhD student Ty Trusty and a grass roots group of graduate wants to petition the Canada to start a national lab (eg INRIA) in Canada. You can read their rationale here: docs.google.com/document/d/1.... If it resonates with you, like it did me, sign the letter and share forms.gle/NqW7Q5qYkytP...!
Research Institute Letter
The Honourable Evan Solomon 409 Parliament street Toronto, Ontario M5A 3A1 Dear Mr. Solomon, RE: Canada Needs a National Research Institute to Stop the “Brain Drain” All my friends are geniuses and ...
docs.google.com
November 3, 2025 at 3:47 PM
My PhD student Ty Trusty and a grass roots group of graduate wants to petition the Canada to start a national lab (eg INRIA) in Canada. You can read their rationale here: docs.google.com/document/d/1.... If it resonates with you, like it did me, sign the letter and share forms.gle/NqW7Q5qYkytP...!
Game 6 let’s go jays !!
November 1, 2025 at 12:34 AM
Game 6 let’s go jays !!
Very excited to share VoMP, our surface to volumetric simready asset generator. Our method doesn’t over fit to a simulator, it predicts ground truth (as measured) Young’s modulus and poison’s ratio much more accurately then previous methods.
📢want to create realistic dynamic 3D worlds (>100 splats)?
my NVIDIA internship project, VoMP, is the first feed-forward approach turning surface geometry into volumetric sim-ready assets with real-world materials.
🌐Project: research.nvidia.com/labs/sil/pro...
📜Paper: arxiv.org/abs/2510.22975
my NVIDIA internship project, VoMP, is the first feed-forward approach turning surface geometry into volumetric sim-ready assets with real-world materials.
🌐Project: research.nvidia.com/labs/sil/pro...
📜Paper: arxiv.org/abs/2510.22975
October 30, 2025 at 7:29 PM
Very excited to share VoMP, our surface to volumetric simready asset generator. Our method doesn’t over fit to a simulator, it predicts ground truth (as measured) Young’s modulus and poison’s ratio much more accurately then previous methods.
Don’t usually post about my non-cs hobbies but I’m proud of this :)
A 440lb deadlift just a few days short of my 46th birthday
A 440lb deadlift just a few days short of my 46th birthday
October 24, 2025 at 6:56 PM
Don’t usually post about my non-cs hobbies but I’m proud of this :)
A 440lb deadlift just a few days short of my 46th birthday
A 440lb deadlift just a few days short of my 46th birthday
EC summary of the SigAsia 2026 decision features some real questionable reasoning
On why no alternative venue ".. it sends the message that we lack confidence in our ability to host international events safely."
docs.google.com/document/d/1...
On why no alternative venue ".. it sends the message that we lack confidence in our ability to host international events safely."
docs.google.com/document/d/1...
Summarization of SIGGRAPH Asia Deliberations
Mission of SIGGRAPH From here: ACM SIGGRAPH is an international community of researchers, artists, developers, filmmakers, scientists, and business professionals who share a common interest in compute...
docs.google.com
October 23, 2025 at 2:48 PM
EC summary of the SigAsia 2026 decision features some real questionable reasoning
On why no alternative venue ".. it sends the message that we lack confidence in our ability to host international events safely."
docs.google.com/document/d/1...
On why no alternative venue ".. it sends the message that we lack confidence in our ability to host international events safely."
docs.google.com/document/d/1...
The University of Toronto Dept. of CS is hiring! We have 3 tenure-stream assistant professor positions open.
Toronto is a great city! Great people, wonderful nature, surprisingly good baseball team, not currently occupied by a US militia. All reasons to apply: web.cs.toronto.edu/employment-o...
Toronto is a great city! Great people, wonderful nature, surprisingly good baseball team, not currently occupied by a US militia. All reasons to apply: web.cs.toronto.edu/employment-o...
Employment Opportunities — Department of Computer Science, University of Toronto
Are you looking for a thought-provoking and inventive career at a leading institution?
web.cs.toronto.edu
October 21, 2025 at 7:47 PM
The University of Toronto Dept. of CS is hiring! We have 3 tenure-stream assistant professor positions open.
Toronto is a great city! Great people, wonderful nature, surprisingly good baseball team, not currently occupied by a US militia. All reasons to apply: web.cs.toronto.edu/employment-o...
Toronto is a great city! Great people, wonderful nature, surprisingly good baseball team, not currently occupied by a US militia. All reasons to apply: web.cs.toronto.edu/employment-o...
As part of my new class assignments I made a simple USD writer for saving animations of dynamic triangle meshes. USD has many issues but it’s the best format I’ve found for sharing scenes like this.
github.com/dilevin/usdm...
github.com/dilevin/usdm...
October 21, 2025 at 1:19 PM
As part of my new class assignments I made a simple USD writer for saving animations of dynamic triangle meshes. USD has many issues but it’s the best format I’ve found for sharing scenes like this.
github.com/dilevin/usdm...
github.com/dilevin/usdm...
The NVIDIA HiFi team (research.nvidia.com/labs/prl/) is starting our search for summer interns. Are you demonstrably awesome at physics simulation, robotics, scene reconstruction, high-performance numerical methods? DM me your CV.
NVIDIA High Fidelity Simulation Research
research.nvidia.com
October 3, 2025 at 1:41 PM
The NVIDIA HiFi team (research.nvidia.com/labs/prl/) is starting our search for summer interns. Are you demonstrably awesome at physics simulation, robotics, scene reconstruction, high-performance numerical methods? DM me your CV.
This year I'm reworking my physics-based animation course with new assignments in Python (using Torch and NVIDIA Warp). So far it's been a great set of tools to use. For the interested, here's the student code for the first assignment: github.com/dilevin/pba-...
GitHub - dilevin/pba-assignment-fem: Implementing the volumetric finite element method using PyTorch and NVIDIA Warp
Implementing the volumetric finite element method using PyTorch and NVIDIA Warp - dilevin/pba-assignment-fem
github.com
October 2, 2025 at 3:07 PM
This year I'm reworking my physics-based animation course with new assignments in Python (using Torch and NVIDIA Warp). So far it's been a great set of tools to use. For the interested, here's the student code for the first assignment: github.com/dilevin/pba-...
My new number one use for LLMs is, I kid you not, spell and grammar checking
Somehow ChatGPT is much better at correcting my often typo ridden drafts than whatever MS Word is doing.
Turns out if you ask it to make only the minimal required changes, it will abide.
Somehow ChatGPT is much better at correcting my often typo ridden drafts than whatever MS Word is doing.
Turns out if you ask it to make only the minimal required changes, it will abide.
September 24, 2025 at 2:09 PM
My new number one use for LLMs is, I kid you not, spell and grammar checking
Somehow ChatGPT is much better at correcting my often typo ridden drafts than whatever MS Word is doing.
Turns out if you ask it to make only the minimal required changes, it will abide.
Somehow ChatGPT is much better at correcting my often typo ridden drafts than whatever MS Word is doing.
Turns out if you ask it to make only the minimal required changes, it will abide.
Sitting in the SIGGRAPH Asia EC town hall.
Meant to be about LGBTQ+ concerns
Currently we are being given tourist info about Malaysia
Starting to think that the whole EC is either incompetent or just doesn't care about the opinions of their constituents.
Meant to be about LGBTQ+ concerns
Currently we are being given tourist info about Malaysia
Starting to think that the whole EC is either incompetent or just doesn't care about the opinions of their constituents.
September 16, 2025 at 12:09 AM
Sitting in the SIGGRAPH Asia EC town hall.
Meant to be about LGBTQ+ concerns
Currently we are being given tourist info about Malaysia
Starting to think that the whole EC is either incompetent or just doesn't care about the opinions of their constituents.
Meant to be about LGBTQ+ concerns
Currently we are being given tourist info about Malaysia
Starting to think that the whole EC is either incompetent or just doesn't care about the opinions of their constituents.
Reposted by David Levin
I am boycotting #SIGGRAPHAsia 2026 because it will be in Malaysia, where there are serious safety concerns for the LGBTQ+ members of our community, thereby excluding them. I will not attend, submit my work to, or perform any reviews for SIGGRAPH Asia 2026.
Yet, I'm excited about #SIGGRAPHAsia 2025!
Yet, I'm excited about #SIGGRAPHAsia 2025!
September 5, 2025 at 11:37 PM
I am boycotting #SIGGRAPHAsia 2026 because it will be in Malaysia, where there are serious safety concerns for the LGBTQ+ members of our community, thereby excluding them. I will not attend, submit my work to, or perform any reviews for SIGGRAPH Asia 2026.
Yet, I'm excited about #SIGGRAPHAsia 2025!
Yet, I'm excited about #SIGGRAPHAsia 2025!
Below is my response to being invited to serve on the technical papers committee at SIGGRAPH Asia 2026 (in Malaysia)
TLDR It's a no.
TLDR It's a no.
September 3, 2025 at 7:57 PM
Below is my response to being invited to serve on the technical papers committee at SIGGRAPH Asia 2026 (in Malaysia)
TLDR It's a no.
TLDR It's a no.
I think my ideal technical talk length on a single topic is 15 minutes. Enough time to get a good sketch of the method but not so much that my attention wanders. After that I really just need to sit with the paper to have any hope of understanding.
August 18, 2025 at 3:17 PM
I think my ideal technical talk length on a single topic is 15 minutes. Enough time to get a good sketch of the method but not so much that my attention wanders. After that I really just need to sit with the paper to have any hope of understanding.
SIGGRAPH over
Tired now
Or Maybe hungry
Off to go solve this mystery.
Tired now
Or Maybe hungry
Off to go solve this mystery.
August 15, 2025 at 1:45 AM
SIGGRAPH over
Tired now
Or Maybe hungry
Off to go solve this mystery.
Tired now
Or Maybe hungry
Off to go solve this mystery.
This was really fun. Thanks to all the speakers. Would do again, so hopefully SIGGRAPH keeps the workshop program around.
Me,Peter Chen and Eitan Grinspun are hosting a SIGGRAPH workshop on reduced-order models. Great keynotes from Maurizio Chiaramonte (Meta), Jernej Barbic (USC) and Mengyu Chu (Peking University) plus a bunch of awesome lightning talks.
Come check it out: roms.news
Come check it out: roms.news
ROM Workshop at SIGGRAPH 2025
Explore the future of subspace and neural simulation techniques at SIGGRAPH 2025. Hear from top researchers and join the conversation on model reduction.
roms.news
August 14, 2025 at 12:30 AM
This was really fun. Thanks to all the speakers. Would do again, so hopefully SIGGRAPH keeps the workshop program around.
This morning 9am East Building Room 11
Me,Peter Chen and Eitan Grinspun are hosting a SIGGRAPH workshop on reduced-order models. Great keynotes from Maurizio Chiaramonte (Meta), Jernej Barbic (USC) and Mengyu Chu (Peking University) plus a bunch of awesome lightning talks.
Come check it out: roms.news
Come check it out: roms.news
ROM Workshop at SIGGRAPH 2025
Explore the future of subspace and neural simulation techniques at SIGGRAPH 2025. Hear from top researchers and join the conversation on model reduction.
roms.news
August 13, 2025 at 2:42 PM
This morning 9am East Building Room 11
Happening tomorrow morning !
Me,Peter Chen and Eitan Grinspun are hosting a SIGGRAPH workshop on reduced-order models. Great keynotes from Maurizio Chiaramonte (Meta), Jernej Barbic (USC) and Mengyu Chu (Peking University) plus a bunch of awesome lightning talks.
Come check it out: roms.news
Come check it out: roms.news
ROM Workshop at SIGGRAPH 2025
Explore the future of subspace and neural simulation techniques at SIGGRAPH 2025. Hear from top researchers and join the conversation on model reduction.
roms.news
August 12, 2025 at 3:57 PM
Happening tomorrow morning !