Spent some time yesterday working with a few different scenes and doing a few performance tweaks. Commits should be self explanatory, so just sharing for anyone curious :) github.com/zeux/niagara...

A list of experimental meshoptimizer APIs. When 1.0 was released in December last year, the only experimental API was marked with the green checkmark.

Almost 10% speedup on this view from an upcoming meshopt function (1.05 => 0.96ms). Obvious omission in hindsight...

Upcoming niagara stream! This Sunday, on May 10, at 10 AM PST (5 PM GMT), we're going to implement support for opacity micromaps using VK_KHR_opacity_micromaps extension that released yesterday. youtube.com/live/gVIHXWI...

who even needs triangles in the first place

While volk always tracks the latest Vulkan version (I've automated myself), I occasionally tag new numbered versions and today is such a day! New release 1.4.350 features a number of small improvements for various edge cases as long as all the new extensions you may want. github.com/zeux/volk/re...

New blog post! In "Quantizing tangent frames", we look at various established methods to represent tangent frames in the vertex data, squeeze a few variants into 32 bits per vertex and look at the resulting precision. zeux.io/2026/04/30/q... Share, like and subscribe!

meshoptimizer 1.1 is out! github.com/zeux/meshopt... Featuring two new major features, meshlet topology compression and opacity micromaps, as well as a few smaller features and improvements! More information in the infographic and release above :) Boosts and repository stars are welcome!

Testing per vertex priority flags for simplification

If you’re in SF the week of GDC and would like to get coffee and chat about game technology, email me! I probably won’t be at GDC proper but will be around.

Yesterday on stream we've sketched out most of the support code for descriptor heaps. If you want to see the rest of the owl, I've committed the remaining pieces after the stream. For now all of the previous descriptor code is still required to support production drivers. github.com/zeux/niagara...

Upcoming Niagara stream! This *Sunday* (Feb 15), at 11 AM PST (7 PM GMT), we will embark on a journey to replace all descriptor uses within the renderer with descriptor heaps. www.youtube.com/live/VXN4Gew...

and just in case you have a spare GPU

Still some bits to sand off but getting closer.

The fact that the entire industry is now wasting time working on, integrating, analyzing, reviewing, and commenting on frame generation is so sad. Surely there are actually productive things we all can be doing instead.

One more thing! A few weeks ago I wrote a post that aggregates various articles I have written on meshoptimizer over the years: zeux.io/2025/12/09/m... If you’re looking for some reading to do over the break, consider revisiting these.

Upcoming niagara stream! Tomorrow (Sunday, Dec 21) at 11 AM PST (7 PM GMT), we will work on reducing the startup time by "cooking" the geometry and, if that gets done quickly enough, optimizing texture loading. www.youtube.com/live/d04h0sZ...

One fun feature that meshoptimizer got in the last two years that I forgot to mention in my v1 post is support for provoking vertex optimization for primitive ID rendering. Implementation is based on exploration by John Hable (thanks!) and is used by Wicked Engine meshoptimizer.org#visibility-b...

Tomorrow comes.

Half resolution is when you cut width and height in half, and get at best half of your rendering time back, since rarely if ever do things scale perfectly with pixel count.

After nine years of development, meshoptimizer has reached its first major version, 1.0! This release focuses on improvements in clusterization and simplification as well as stabilization. Here's a release announcement with more details on past, present and future; please RT! meshoptimizer.org/v1

Do I know anyone in Poland who will be there next week and wants to get tea or whatever people drink there and chat? Schedule not too flexible but I might be in the right city at the right time :) DM me!

Is anyone still using DirectXMesh library? If so, why?

New blog post! In "Billions of triangles in minutes" we'll walk through hierarchical cluster level of detail generation of, well, billions of triangles in minutes. Reposts welcome! zeux.io/2025/09/30/b...

Unlike Vulkan, DX12 doesn't support loading 8-bit types from byte address buffers; this seems like it would be a problem for working with 8-bit triangle indices, but don't worry, you can just

AMDVLK is dead, long live radv: github.com/GPUOpen-Driv...

Profile.

Spent some time resurrecting niagara from 2018 to test some NV_mesh_shader stuff. This was fun! - The code almost compiles and runs... needed a couple SPIRV fixes to align with latest Vulkan SDK for some reason. - This was using meshoptimizer v0.9 (17 versions ago!) - Update to v0.25 needed a...

Upcoming niagara stream! Tomorrow (Saturday, Aug 23) at 11 AM PST (6 PM GMT), we will talk about and work on simplifying Vulkan synchronization code, following recent developments in the ecosystem like unified layouts. youtube.com/live/0rqWe1M...

While it's quite silly to literally run the simplifier every frame on the UI thread in the browser, it's fun to see that it can indeed work at 60 FPS!

BREAKING: Silksong will be out on September 4. Two weeks from today. Really. Often, games that take 7+ years to make are plagued by mismanagement and painful burnout. But for Silksong? Team Cherry was having a blast. They still are. This is their story: www.bloomberg.com/news/newslet...

@akien.bsky.social Any sense as to the timeline of 4.5 release? Did not expect 2 months of betas 😅

now I can finally relax a little 😩

meshoptimizer v0.25 is out! Featuring new simplification function that optimizes positions and attributes for appearance, experimental permissive mode to simplify faceted regions with selective seam preservation, regularization option for improved tessellation quality and deformation, multiple ...

Strange combination of inspired and tired after SIGGRAPH.

my UEToolbox plugin now has support for Parametric StaticMesh Assets. And it now full source is on FAB, and the code is on Github, too. And also unfortunately I have to move on to other projects :( Wrote a big ol' blog post about it all here: www.gradientspace.com/tutorials/20...

neat

If any of YouTube PMs had a soul, YT would have a setting to permanently disable shorts in main feed. And yet here we are.

An isotropic function is notably not the same as anisotropic function.

today is one of those days

today is one of those days

Blog post about lossless float image compression (EXR, HTJ2K, JPEG-XL, mesh optimizer): aras-p.info/blog/2025/07...

After a loooong break (last time was in… 2014?) will be at upcoming SIGGRAPH!

After 2 months of work, the Clair Obscur Expedition 33 video is here. I interviewed most of the game's senior leadership team asking one simple question: how did you do this? Their answers were inspiring and moving, and it's no surprise that COE33 is as remarkable as it is: youtu.be/mXLOLgC2V2Q?...