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...

Dev Days is tomorrow (May 14!) and it's not too late to join. Pick an ASWF project, get mentorship from maintainers, and contribute to the open-source tools behind some of your favorite films. Any experience level welcome 👇 www.aswf.io/dev-days/#re... #ASWF #OpenSource #DevDays #VFX

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

Foundry’s recently released Nuke 17.0 compositing toolkit natively supports #MaterialX, further advancing open standards while enabling artists to generate more complex and detailed shaders straight out of Nuke. Read more in this guest post from Foundry on our blog! www.aswf.io/blog/materia...

MaterialX Needs a Single-File Container. Let's formalize what @polyhaven.com and @gpuopen.bsky.social material libraries are already doing with a new "mtlz" extension. Details here: ben3d.ca/blog/materia... CC: @materialx.bsky.social

MaterialX Needs a Single-File Container

MaterialX assets are multiple loose files, which breaks down in real pipelines. The community has already solved this with zip packaging. We just need to formalize it as .mtlz.

ben3d.ca

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...

Needle Engine 5 brought a massive #MaterialX leap: — Full lights & shadows (point, spot, directional) — Displacement mapping — Automatic transparency detection docs.needle.tools/materials #threejs #webdev #rendering #shadergraph

Needle Engine 5 is here with a huge leap in #materialx support and #EXR compression! Read the changelog: github.com/needle-tools... #threejs #webdev #ar #rendering

Release 5.0.0 · needle-tools/needle-engine-support

⭐ Highlights FastHDR (PMREM) — Ultra-fast EXR Compression Needle Engine now supports compressing EXR skybox and environment textures using our FastHDR format. Compared to standard EXR files, FastHD...

github.com

This weekend I added support for the MaterialX <time> and <frame> nodes to Gatling. Procedural materials can now be animated over time, such as this clock authored by Roberto Ziche:

MaterialX adds support for Slang Shader generation! Learn more: www.aswf.io/blog/materia... #materialx #slang #shaders #ASWF #machinelearning #openusd

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/!

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

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-...

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...

New Github PR to #ThreeJS that adds much improved #MaterialX support. New nodes & properties supported: thin film, sheen, transmission, rotate, determine, inverse, floor, reflect, refract, opacity, specular, anisotropy, etc... Full details: github.com/mrdoob/three...

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

Thanks to a sponsorship from @sidefx.bsky.social we've made some big improvements to our USD and FBX downloads for models, as well as introduced a new MaterialX download option for all textures: www.patreon.com/posts/materi...

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

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

MaterialX v1.39.3 has been released! This version improves the alignment between MaterialX and OpenUSD, adds support for OSL v1.14 and MDL v1.10, and includes optimizations to ShaderGen and GitHub CI to improve performance for artists and developers. github.com/AcademySoftw...

Applications for the #ASWF Summer Learning Program are now open! If you are interested in exploring a technical career in animation or VFX and identify as an underrepresented gender, apply before April 11 at hubs.la/Q0394RY20!

We're proud to welcome our parent organization, @academyswf.bsky.social, to Bluesky, and we hope you'll follow them if you're interested in related projects such as OpenEXR, OpenColorIO, and Open Shading Language!

MaterialX v1.39.2 has been released! This version adds support for the Chiang Hair BSDF, Disney Principled shading model, generic color ramps, improved Worley noise, shader generation optimizations, and contributions from our participants in ASWF Dev Days 2024. www.aswf.io/blog/materia...

MaterialX v1.39.2 Now Publicly Available - ASWF

The Academy Software Foundation is excited to announce the release of MaterialX v1.39.2, introducing support for the Chiang Hair BSDF, Disney Principled shading model, generic color ramps, improved Wo...

aswf.io

The first release candidate for MaterialX 1.39.2 has been marked on GitHub, and we're encouraging teams to test it out over the next week. The tag for this release candidate is v1.39.2-rc1, and the latest changelog may be found at github.com/AcademySoftw...