The MaterialX PBR specification is gaining formal mathematics! This proposal adds scattering equations for each BSDF, EDF, and VDF, so that renderers can implement shading nodes directly from the spec. Feedback and review from the rendering community are very welcome: github.com/AcademySoftw...

Initial scattering equations for the PBR specification by jstone-lucasfilm · Pull Request #2964 · AcademySoftwareFoundation/MaterialX

This changelist expands the MaterialX PBR specification with the formal mathematical foundations of its shading nodes, so that the behavior of each BSDF, EDF, and VDF can be reproduced directly fro...

github.com

MaterialX v1.39.5 is released! This release of MaterialX has the largest set of contributors in the history of our project, and includes support for the Slang shading language, 2D and 3D flake nodes, improvements to the MaterialX Graph Editor, and much more. github.com/AcademySoftw...

Naty Hoffman just wrapped up a career-spanning keynote on lessons learned from game development and beyond. Now underway: a fireside chat with Naty Hoffman and Eric Haines, joined by Omer Shapira - celebrating two remarkable careers in computer graphics. #I3D2026

This year's Google Summer of Code includes two ASWF projects within Blender: MaterialX and OpenTimelineIO. Stay tuned for the results!   summerofcode.withgoogle.com/programs/2026/organizations/blender-foundation #OpenSource #Blender #GSoC #ASWF #MaterialX #OpenTimelineIO #VFX #Animation"

If you've ever wanted to contribute to open source VFX software but didn't know where to start: Dev Days is made for you! Join us on May 14 or September 17 for ASWF Dev Days. Pick a project, get paired with mentors, and make a real contribution in one day 👉 bit.ly/49cSk6U #DevDays #VFX #Animation

We're very happy to announce that the first release candidate for MaterialX v1.39.5 is officially tagged, and you can find the full changelog at the link below. We look forward to hearing about your experiences, and happy testing! github.com/AcademySoftw...

Are you interested in a technical career in VFX or 3D Animation? Apply for the #ASWF Summer Learning program by April 18! The 8-week mentorship is 100% remote and open to all experience levels. Learn more and apply at www.aswf.io/summer-learn...

ASWF #DevDays is next week! Join developers from around the world on Sept. 25 by picking a task from an #ASWF project, including that can be completed in one day. All levels of experience are welcome! Find out more and sign up to participate at www.aswf.io/dev-days. @materialx.bsky.social

MaterialX v1.39.4 has been released! This version adds support for WebGPU Shading Language, hex-tiled and lat-long images, NanoColor spaces, 2D fractals, animated materials, and many contributions from our participants in ASWF Dev Days 2025. github.com/AcademySoftw...

Our next virtual #DevDays is coming up Sept. 25! Spend a day contributing to one of the #ASWF projects and supporting the software our industry relies on. Find out more and sign up at www.aswf.io/dev-days/!

Most of the slides and course notes for the SIGGRAPH 2025 Physically Based Shading in Theory and practice course are now online, with more to follow: blog.selfshadow.com/publications...

Thanks to our colleagues at Autodesk, IKEA, NVIDIA, OTOY, and Pixar Animation Studios for their amazing work on the MaterialX and OpenPBR Virtual Town Hall for @aswf.io Open Source Days 2025. The full slide deck can be found at materialx.org/assets/ASWF_...

We're excited to share #OpenPBR Volume, a new collaboration between Autodesk and Sidefx to create an open standard enabling users to define the look of volumetric assets. OpenPBR is a subproject of @materialx.bsky.social. Read more: www.aswf.io/blog/openpbr...

Announcing OpenPBR Volume! - ASWF

OpenPBR Volume is a new collaboration between Autodesk and SideFX to create a common model for defining the look of volumetric assets.

aswf.io

New at #SIGGRAPH2025: Can we make Perlin Noise stretch along some underlying vector field? Well it turns out it's possible with two simple additions to the original method! No need for advection or convolutions. Find the paper and implementations here: github.com/jakericedesi...

Join us on August 5th for the MaterialX Virtual Townhall at ASWF Open Source Days 2025, featuring presentations from Autodesk, IKEA, Lucasfilm, NVIDIA, OpenPBR, OTOY, and Pixar. events.linuxfoundation.org/open-source-...

#LAIKA Joins the #AcademySoftwareFoundation - award-winning #animation studio and longtime contributor to the MaterialX project, and #OpenUSD Working Group plans to help expand the organization’s mission and learning programs. bit.ly/40Iu6NN #Stopmotion #3Dprinting #AnimationWorld #VFXWorld

We've just marked the first release candidate for MaterialX v1.39.4 on GitHub, and we'd love to get feedback from teams with MaterialX and USD integrations. The tag for the release candidate is v1.39.4-rc1, and you can read more about the new features and updates at github.com/AcademySoftw...

Join us on August 5th for the MaterialX and OpenPBR Virtual Townhall at ASWF Open Source Days 2025, featuring presentations from Autodesk, IKEA, Lucasfilm, NVIDIA, OTOY, and Pixar RenderMan. events.linuxfoundation.org/open-source-...

Virtual Townhalls | LF Events

Leading up to our main program on August 10, we will be holding a series of virtual town halls for Academy Software Foundation projects including MaterialX, OpenCue, OpenColorIO, Open RV, among others...

events.linuxfoundation.org

We're excited to announce that our keynote for Open Source Days 2025 will be delivered by the Academy Award®-winning ‘Flow’ filmmaking team! Join us for free on August 10 (in-person or virtually) for that and much more! Full schedule and registration details on our blog: www.aswf.io/news/open-so...

Open Source Days 2025 Keynote to be Delivered by Academy Award®-winning ‘Flow’ Filmmaking Team - ASWF

The Academy Software Foundation has announced the program for its annual Open Source Days event taking place August 4-11, which will include a keynote talk by the filmmaking team who worked on the ani...

aswf.io

Congratulations to Alain Hostettler on a great talk at HPG 2025, including the announcement of a Pixar/Lucasfilm collaboration on the MaterialX Physically Based Shading nodes in RenderMan XPU! www.youtube.com/watch?v=md6S...

HPG 2025: Day 2 - June 24th

YouTube video by High-Performance Graphics

youtube.com

The HPG 2025 Conference starts tomorrow, and I'm looking forward to the MaterialX talk from my ILM colleague Alain Hostettler, the RenderMan XPU talk from Pixar, and the Slang talk from @shannonin3d.bsky.social. highperformancegraphics.org/2025/program...

High-Performance Graphics 2025

High-Performance Graphics 2025 - June 23-25 Copenhagen

highperformancegraphics.org

The SIGGRAPH Physically Based Shading course is back this year: blog.selfshadow.com/publications...

This was a really fun conversation on MaterialX, glTF, and OpenUSD at the Metaverse Standards Forum last week, and I thought I'd share it here for interested folks. www.youtube.com/watch?v=m-bE...

Material Convergence - Material, glTF, and USD

YouTube video by Metaverse Standards Forum

youtube.com

One update we want to celebrate in USD 25.05 is having MaterialX v1.39.3 -- which includes OpenPBR Surface and the Chiang Hair BSDF -- as the new default MatX version. 🎉 Thank you for the close collab @materialx.bsky.social! 💖 We're excited to see the cool things folks create with this combo!

Join the 3D Asset Interoperability Working Group on April 30th for the education session, Material Convergence - MaterialX, glTF, and USD with Jonathan Stone and Ed Mackey. All members are welcome! Not a member? Join us - metaverse-standards.org/members/ #glTF #MaterialX #USD

Happy twentieth to the Psychonauts crew, an amazing game team that I remain deeply proud to have worked alongside. Thanks to @timoflegend.bsky.social, @erikrobson.net, @doubleanna.bsky.social, @keescheese.bsky.social, @scottlava.bsky.social, and the rest of this brilliant band of troublemakers.

TimOfLegend@timoflegend.bsky.social · last yr.

Happy TWENTIETH BIRTHDAY to Psychonauts! Here’s to a very special game, a very special team, and a very special community of players, cosplayers, and paranormal paratroopers! ❤️🧠🌀🕸️💥🐢🍰🐻🪶🌲🧘🏽🚣‍♂️🏆🎭🛶🪬🛀🏼🧸🎉🧡💚💭🧊🔥!

Are you interested in contributing to an #ASWF project but don't know where to start? Join us on May 15 for #DevDays and spend one day learning about a project, benefiting from the mentorship of project leaders, and of course writing code! Register at devdays.aswf.io.

The call for presentations for #ASWF Open Source Days is now open until May 18! We are expecting a full house again this year with 250+ software engineers from across the motion picture industry. Submit your talk at aswf.io/opensourcedays

Open Source Days | LF Events

Open Source Days, by the Academy Software Foundation, is the leading event for open source in VFX, animation, and digital content creation.

aswf.io

EON: A practical energy-preserving rough diffuse BRDF; by Portsmouth, Kutz, and Hill. www.jcgt.org/published/00...

Implemented USD point instancer primvar support in my toy renderer the last few days. Can now render this 2D Gaussian Splatting (2DGS) scene with a single mesh & MaterialX material. (Created by Oliver Markowski with Houdini, link see below ⬇️)