Just announcing that I am open for contracting for the following year! Looking for a graphics/engine programmer to help you out on your project? Feel free to reach out. My expertise is primarily in graphics programming as well as console platforms. 🧵

I've got a new blog post for all of you fine folks! It runs through the additions to D3D12 since it was released, and finishes up with some of the things that have changed for me personally in my code. (And yes it's really been 10 years 👴). therealmjp.github.io/posts/ten-ye...

This article popped up in my Apple News feed, and I did a double-take when I saw the head render. My skin/SSS people will know what I’m talking about. 😄

Some fun with shader-based debug drawing: here I'm drawing an arrow for each path taken in the path tracer, starting with the pixel under the mouse cursor.

I will be at SIGGRAPH this year with some SMS people. Hit me up if you want to say hello!

ACM is (finally) transitioning to an Open Access publishing model: www.acm.org/publications...

@christerericson.bsky.social we were having an argument at work about what the “Dyna” in “stdDynaString” means. Any chance you remember?

It’s a good thing that I finally called it quits on Blue Prince, because it looks like it just nuked my save game on PS5. 😅

I’m really feeling for my Microsoft friends today. What a mess.

I just got a new monitor with a built-in KVM switch, and so far it's a much better experience than my old DisplayPort KVM switch. (Hopefully) no more black screens, missing input, or limited resolution/refresh rates.

Pretty great sign spotted yesterday at a No Kings protest

I probably should have done this many years ago, but I finally got around to adding some useful debug features to my old Shadows sample. You can now "freeze" the cascades and zoom out, and draw them to see what they look like. www.youtube.com/watch?v=0D4A... github.com/TheRealMJP/S...

I’ve been giving it a lot of thought, and I think I’m ready to die on the “half resolution means half the width and half the height” hill. If you need me I’ll be settling in up here.

Here is a new blog post of mine, where I dive deep into the theory and math behind ReSTIR GI. Big thanks to Markus Kettunen for verifying the theory, reviewing the article, and catching a key detail I had missed. agraphicsguynotes.com/posts/unders...

RE my post about printf not working with latest DXC: bsky.app/profile/mjp1... I think I've figured out a tweak to avoid the problematic StrLen function that DXC no longer accepts. Basically, just while loop over the string characters until the null terminator is found: github.com/TheRealMJP/E...

Unfortunately it seems that in the latest release of DXC my HLSL printf hack no longer works. Apparently a crash was reported when using it for SPIR-V generation, and the "fix" was to generate an error when using a string literal with templates. 😔 github.com/microsoft/Di...

A nice hugo blog post tool that I built today Sometimes, when we work on a post with a bunch of references, we may need to remove or add items in between. When the article is almost done, adding/removing any of the references requires updating a bunch of hardcoded numbers, which is error prone

In today's new blog post, I try to provide some intuition and clear up some misconceptions about early Z cull behavior on desktop GPUs. Have a read if that interests you! therealmjp.github.io/posts/to-ear...

Lately I find my thoughts drifting to this graph for no particular reason

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...

Added a DX12 test project for my SH.hlsli library to make sure that it actually works. Good news: it does!

"The best lessons we can find come from other countries that have faced similar power grabs…some lessons can be generalized to provide actionable advice for Democrats, ordinary citizens, civil society and philanthropists, and government employees." www.vox.com/politics/399...

JCGT announcements are now on BlueSky: bsky.app/profile/jcgt...

Richard Van Natta just contributed a GLSL version as well: github.com/TheRealMJP/S...

I just pushed a new "Lite" version of my spherical harmonics shader library for HLSL: github.com/TheRealMJP/S... The Lite version does not use templates, and is compatible with FXC or other compilers that don't support templates and operator overloads.

Balatro be like

Hey there bsky! I'm looking for an internship in graphics/engine programming anywhere in the world (I'm willing to relocate). If you happen to know any open positions or if you work at a company that is taking interns, feel free to contact me! Portfolio ⬇️

New toys…I mean important tools.

After so many years of real-time GI being a near-impossible “holy grail” of graphics, it’s a bit funny that the RTGI era has finally arrived without much fanfare. It’s also interesting that the main benefit ended up being vastly improved dev workflow as opposed to a visual quality increase.

So I guess online ads are just fully transitioning to AI slop now, which sounds about right. It looks like something out of a waking nightmare.

Honestly there’s just so many things I could put at the top of this meme

ATG are a lovely group of people, you should definitely consider working with them!

I made this the other day, and sadly I was once again correct

I sketched this out as part of a conversation about emulating Vulkan's Buffer Device Address (pointers) functionality in D3D12/HLSL: godbolt.org/z/rdn698nMT I've been told this is how Vkon12 does it under the hood, which makes sense since it all fits nicely into 64-bits.

I often get asked about my book recommendations for graphics programming and game development. I updated my old list and made it easier to find on my website. With Black Friday/Cyber Monday, many are on sale right now (at least in Canada/US) www.jendrikillner.com/books/

I know bikeshedding is generally a bad thing, but I do enjoy a kind of “therapeutic bikeshedding” when working on my home code. It’s liberating and comforting to be able to jam on some small problem without having to worry about whether it’s the right choice for project goals or time constraints.

Hello I made this table (not the entire website/db nor the info tool!) out of frustration at sifting through individual reports to figure out feature support. Hope it's useful. If you own any GPUs missing from this it would be nice to upload a report via the D3D12infoGUI tool so everyone can benefit

Hello, I'm new here and since I just finished setting up a public portfolio, I might as well post it here as an introduction. Don't mind the "graphic design is my passion"-esque preview picture. I'm a programmer. maraneshi.github.io/portfolio/

I feel the need to shout out this awesome D3D12 feature table that a few people from the DirectX discord put together: d3d12infodb.boolka.dev/FeatureTable...

If we need to preserve anything from The Other Place it is this amazing meme originally posted by @mjp123.bsky.social

Fox News: "The Onion has 4.3 trillion daily readers."

My edgy boi is coming along

"Anisotropic Specular Image-Based Lighting Based on BRDF Major Axis Sampling", extends split sum method using multisampling of the preconvolved cubemap to implement anisotropic indirect specular. Awesomely presented with paper, code, video and ShaderToy. xavierchermain.github.io/publications...

Here's something I've been working on that's (hopefully) useful for others: a single-header spherical harmonics support library for HLSL 2021 github.com/TheRealMJP/S...

www.remedygames.com/article/alan... 🎁

I realized I haven’t posted any dog photos yet, time to fix that

Please sign my petition to require apps to register themselves with some kind of public "TDR offender" database if they set this key to 0.

Since I can't post about my Xbox work — and don't have any hobby projects on the go currently, I will do a thread about useful GPU tooling that's open access and/or open source. Starting in next post:

If you all don’t mind, I’m going go shill this blog post I wrote two years ago about dealing with memory pools and uploading from SysRAM->VRAM. It’s one I link to frequently for people starting out in D3D12. And it has fun graphs! therealmjp.github.io/posts/gpu-me...

I was chatting with someone about tile classification for deferred rendering earlier today, and sent them this link which is still a good reference: advances.realtimerendering.com/s2016/s16_ra...