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?...

meshoptimizer.org has also been updated with better documentation structure, and more details where relevant. Hopefully that’s easier to navigate!

meshoptimizer 0.24 is out! Featuring new meshlet builder for raytracing workloads, improvements to cluster partitioning, new functions for reindexing, simplification, clustering and coverage computation, many internal improvements and, of course, VS2013 support!

Good one page summary of Metal 4. This should not be too surprising if you have seen other APIs or watched Metal's evolution, but wow is the result pretty far away from Metal 1 :) developer.apple.com/documentatio...

Probably the most important Vulkan update since dynamic rendering is live! docs.vulkan.org/features/lat...

... always look inside meshes if the metrics you evaluate look incredibly strange.

I am disappointed in the AI discourse steveklabnik.com/writing/i-am...

New blog post! "Load store conflicts", in which we look at some performance sensitive code that has surprisingly dramatic performance swings based on the compiler and the microarchitecture used. Reposts appreciated! zeux.io/2025/05/03/l...

No stream tomorrow, need to write a blog post and prepare for travel so time is limited. Streams should continue at the end of May!

Streaming tomorrow! At 11 AM PST (6 PM GMT) we will look into profiling and optimizing some things we should have probably done a while time ago :) youtube.com/live/qlxrRyR...

New blog post! "Measuring acceleration structures", in which we will compare BVH costs on various GPU architectures and drivers and attempt to understand the details enough on AMD hardware to make sense of the numbers! Reposts appreciated :) zeux.io/2025/03/31/m...

2025 seems like a great year for software rasterization

good start of the year

At gdc wed-thu and maybe fri, dm if you’d like to grab coffee

meshoptimizer 0.23 is out! Featuring vertex codec v1 (increased compression ratio, faster decompression + even faster on Apple Silicon), improvements to meshlet builder with fewer disconnected clusters and more options for clustered raytracing and hierarchical clusterization, new algorithms for ...

PSA: If you think your Vulkan synchronization code is solid, may I introduce you to syncval_shader_accesses_heuristic? syncval layer, even if enabled, will not flag some hazards due to lack of precise information about resource access. The heuristic tracks static resource access in shader.

progress

why would they do this to me

Wow, Godot 4.4 release notes are impressive, not just in terms of actual improvements but the presentation quality is 🤩 godotengine.org/releases/4.4/

I wonder if there's a good list of people to follow or a feed of some sort here that has people sharing game technology/game related screenshots/videos/writeups they are working on? Individual account recommendations to follow also welcome!

Cool, 5070 Ti availability is just as bad as 5080/5090. I plan to do a stream on NV advances in RT but it makes less sense to do this on 30xx so I guess it’s going to be months away the way things are going. (since these work on all RTX cards it’ll be ironic to do it on 3050 but what’s the point?)

hard part (plotting points) done now for the easy part, choosing the best color

These last four lines were entirely too much work but things seemingly work more or less.

State of 5090 launch in US: - You can buy a prebuilt computer with it for 6K USD - You can buy it off ebay for est. 5.5K USD - You can buy a framed picture of 5090 off ebay for 2K USD Great job everyone involved.

NVidia RTX Blackwell architecture whitepaper: images.nvidia.com/aem-dam/Solu... Going to start working on meshoptimizer support for RT aware clusterization when drivers and hardware becomes available.

pugixml 1.15 is live! In addition to regular maintenance (warning fixes, build system improvements, etc.), many APIs now have std::string_view overloads (and, as a byproduct, transparently support std::string). [...] github.com/zeux/pugixml...