New blog post! In "Billions of triangles redux" we take another stab at improving various parts of clustered level of detail pipeline to make Zorah smaller and nicer! zeux.io/2026/09/30/b...
Arseny Kapoulkine
@zeux.io
Independent. Previously: TF@Roblox meshoptimizer, pugixml, volk, calm, niagara, qgrep, Luau https://github.com/zeux https://zeux.io
DASHR - Dynamically Animated Skinned Heightfield Rendering Short video for now - I might do a longer one later? youtu.be/-Su9YrcazRk But there's ALL the details in the paper, and you can always Use The Source, Luke for the really deep info. github.com/tomforsyth10...
DASHR - Dynamically Animated Skinned Heightfield Rendering - six minutes version
YouTube video by Tom Forsyth
youtu.be
meshoptimizer 1.3 is out! Featuring a new voxel remesher, support for normal generation, several simplification improvements and various optimizations and fixes. GitHub stars and reposts appreciated! meshoptimizer was started 10 years ago; excited for the years to come! github.com/zeux/meshopt...
meshoptimizer turns 10 today! This blindsided me a little bit; I thought it would be later this year. So I don't have an anniversary release or post ready; I'm on a tail end of a few neat improvements that need a bit more time to work on or write about. Time flies!
one more thing before I unplug for a couple weeks: nicer vertex normals!
meshoptimizer 1.2 is out! Featuring support for tangent generation, a significantly faster vertex decoder for Intel/AMD CPUs, several new smaller algorithms (cluster position compression, triangle filtering, clusterlod BVH) and more. GitHub stars and boosts appreciated! github.com/zeux/meshopt...
We're finally bringing our powerful and user friendly CPU profiler to Linux! The beta version is now publically available, and it's free for 60 days during the open beta, so there's really no excuse not to try it out! Just download, extract, optimize. superluminal.eu/applications...
Superluminal For Linux | Fast Profiling Without The Challenges
No pages of installation guides. No Gigabytes to download and install. Just unzip, run and focus on performance issues. It Just Works™.
superluminal.eu
New blog post! In "Zigzag decoding with AVX-512", we look at two different ways to possibly (caveat emptor) speed up various forms of zigzag decoding with AVX-512 functionality that isn't just "wider registers"! zeux.io/2026/06/17/z...
Zigzag decoding with AVX-512
I’ve been working on speeding up AVX-512 vertex decoding in meshoptimizer recently; in the process I stumbled upon two optimizations that I did not end up using but I thought they might be fun to writ...
zeux.io
pugixml 1.16 is out! It's a nice release, but also it's the 20th anniversary release, so I wrote a few words on the history in the release notes :) but also it's a well rounded release by itself, with bug fixes, performance improvements and a couple tiny features. github.com/zeux/pugixml...
Release v1.16 · zeux/pugixml
pugixml-1.16 is out. This is an anniversary release: pugixml turns 20 this year! In early 2006, I was evaluating existing XML parsers to parse large COLLADA files quickly and nothing fit the bill; ...
github.com
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...
Commits · zeux/niagara
A Vulkan renderer written from scratch on stream. Contribute to zeux/niagara development by creating an account on GitHub.
github.com
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...
niagara: Opacity micromaps
YouTube video by Arseny Kapoulkine
youtube.com
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...
Release 1.4.350 · zeux/volk
A periodic tagged release of volk, matching Vulkan 1.4.350. New extensions: VK_EXT_descriptor_heap 🎉 VK_ARM_data_graph, VK_ARM_data_graph_optical_flow, VK_ARM_performance_counters_by_region, VK_AR...
github.com
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!
Quantizing tangent frames
I’ve been working on tangent space generation recently, and also pondering the tradeoffs between QTangent and normal-angle storage. So when, in a completely unrelated discussion, someone said “you cou...
zeux.io
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!
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...
Comparing f25b318a924a70ad98cb43bd6bbd5b1dd04c7780...8cf95feee3e7f37b2864795dbcbbf0acc375860c · zeux/niagara
A Vulkan renderer written from scratch on stream. Contribute to zeux/niagara development by creating an account on GitHub.
github.com
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...
niagara: Descriptor heaps
YouTube video by Arseny Kapoulkine
youtube.com
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.