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OpenCL 3.0 Specification Finalized and Initial Open Source SDK Released

OpenCL LogoThe OpenCL™ Working Group announced the release of the finalized OpenCL 3.0 specifications, including the new unified OpenCL 3.0 language specification, together with an early initial release of a Khronos OpenCL SDK to enable developers to quickly get up to speed using OpenCL.

OpenCL 3.0 makes the OpenCL ecosystem significantly more flexible by enabling hardware vendors to focus their resources on functionality that their customers need. This is achieved by slicing all functionality beyond OpenCL 1.2 into optional features that can be queried in the API, with macros to indicate whether optional OpenCL C language features are present. This flexibility sets the stage for new extensions that become widely useful to be incrementally integrated into new OpenCL core specifications for pervasive adoption.

Read the full OpenCL 3.0 announcement
Access the OpenCL 3.0 specifications
Access the OpenCL SDK
Your feedback is welcomed and encouraged! Submit your feedback on GitHub

Vulkan Portability Extension Released and Implementations Shipping

Vulkan Portability LogoKhronos has shipped the provisional version of the Vulkan® Portability Extension version 1.0 and it is shipping today in both MoltenVK and gfx-portability. The Khronos Vulkan Portability Initiative fights platform fragmentation by encouraging and enabling layered implementations of a Vulkan subset over Metal, DX12, and other APIs. Most early interest in Vulkan Portability has been in layering Vulkan functionality over Apple’s Metal API, as native Vulkan drivers are not permitted on macOS and iOS.

MoltenVK and gfx-portability are royalty-free, open-source projects that layer Vulkan functionality over Metal. Both use SPIRV-Cross to translate the application’s native Vulkan shaders into Metal Shading Language for compilation by the Apple-supplied Metal compiler and provide a run-time Vulkan to Metal API shim. To the platform, software using MoltenVK or gfx-portability appears as a standard Metal application.

Read the full blog post

Upcoming Khronos Webinars

OpenVX LogoOpenVX™ is a hosting a webinar to discuss the latest features in OpenVX 1.3 and how these features are being leveraged by OpenVX adopters. Additionally, we will clear up some misconceptions about OpenVX adoption and usability. We will also analyze an application and learn about the performance, portability and memory footprint advantages of OpenVX via open-sourced samples.
When: October 14, 2020
Presenters: Neil Trevett, Khronos Group President; Kiriti Nagesh Gowda, OpenVX Chair; Mike Schmit, AMD; Frank Brill, Cadence

3D Commerce LogoThe 3D Commerce™ Working Group will host a panel to discuss why industry alignment is crucial and how standardization will bring new opportunities to any designer, retailer, manufacturer or technology company developing 3D experiences.
When: October 27, 2020
Panelists: Shrenik Sadalgi, Wayfair & 3D Commerce Chair; Leonard Daly, Daly Realism & Moderator; Eric Bennett, Amazon Imaging Sciences; Brent Scannell, Autodesk; Nathaniel Hunter, Dreamview; Max Limper, DGG; Thomas Lucchini, Microsoft; Jon Wade, Shopify; Norbert Nopper, UX3D

OpenXR Logo Last year, OpenXR™ released the 1.0 version of the specification. Join this webinar to get an update from the Chair of the Working Group, code examples, update on a new conformant product, discussion of two extensions: experimental overlays and hand tracking, Simultaneous Localization and Mapping (SLAM), and available vendor services. There will be a live Q&A following the presentations.
When: October 28, 2020
Speakers: Brent Insko, OpenXR Chair; Jakob Bornecrantz, Collabora; Sam Robinson, Holochip; Steve Winston, Holochip; Sam Morales, Holochip; Brad Grantham, LunarG; Robert Blenkinsopp, Ultraleap

WebGL LogoWebGL is in the early stages of planning their own webinar. Stay tuned for more details.
When: November 18, 2020


Bringing SYCL to Supercomputers with Celerity

Celerity LogoCelerity is an open source project which focuses on providing a way of scaling applications to a cluster of accelerators without having to be an expert in distributed memory programming. In fact, the Celerity API does not make it apparent that a program is running on many nodes at all: There is no notion of MPI ranks or process IDs, and partitioning of work and data is taken care of transparently behind the scenes. Celerity is built on top of SYCL™: The API makes it the perfect starting point that hits a sweet spot between cost and power as well as ease of use. From that base, Celerity finds the minimal set of extensions required to bring the SYCL API to distributed memory clusters - thus making it relatively easy to migrate an existing SYCL application to Celerity. More...

ANARI Webinar + Q&A recap

ANARI LogoRecently, ANARI Working Group members shared an update on their progress towards an initial specification. In case you missed the webinar - or would just like a recap - the recording and slides are posted for public access. The audience had great questions, so we recapped the discussion here.

A Guide to Vulkan Synchronization Validation

LunarG LogoThe Guide to Vulkan Synchronization Validation, a LunarG white paper, provides an overview of synchronization and why it is important along with a quick-start guide for new users. The reader will learn about synchronization validation and associated validation messages, how to use synchronization validation, and how to optimize it. Learn more...

Free Webinar and Educational Resources to Help You Get Started with OpenVX

OpenVX LogoThe OpenVX Working Group at Khronos has updated and expanded its collection of free educational resources to help developers come quickly up to speed on best practices for implementing and using OpenVX.

For example, the open source OpenVX Sample Implementation can be a great starting point for companies implementing an OpenVX driver for their silicon, and the OpenVX 1.3 Reference Guide can be an invaluable OpenVX programming companion for developers of all skill levels! Learn more...


SYCL for Safety Practitioners – SYCL for Automotive AI and ADAS applications

Codeplay LogoPart 2 of 2 provides an overview of a typical SYCL application for safety applications providing a good platform upon which you can see the anatomy of the ADAS or AI compute stack unfold. This article is an introduction to SYCL much like other SYCL articles or texts but with a focus on safety. More...

Blender now supports SteamVR via OpenXR

Blender LogoThe latest update to Blender 2.83 LTS (2.83.6) adds support for SteamVR! Devices like Valve Index and HTC Vive should work within Blender using the latest SteamVR. This is made possible via the multi-platform, OpenXR standard.

Watch Pablo Vazquez from Blender give an update on update 2.83.6 in this video. More...

X-Plane 11.5 released with rewritten rendering engine that now gives Vulkan support

Vulkan LogoLaminar Research completely rewrote their rendering engine to provide Vulkan (on Windows and Linux systems) and Metal (on Mac). This should provide X-Plane 11 players with smoother frame rates, with far less stuttering and better performance overall. More...

Enhanced Vulkan Support in new NVIDIA Nsight Graphics 2020.5 Developer Tool

NVIDIA LogoNVIDIA has added support for Vulkan and Vulkan Ray Tracing in the Shader Profiler. Vulkan GLSL shaders are supported in the same way that was previously possible for D3D12 and DXR HLSL shaders. Users that provide debug information for their shaders can see detailed performance data mapped directly to the GLSL source lines it is associated with. This allows users to pinpoint performance issues caused by stalls in the shader instruction pipeline. More...

Open Standards Enable Continuous Development in Automotive

Codeplay LogoCodeplay’s Charles Macfarlane, CBO, and Illya Rudkin, Safety-Critical Software Development Lead, have contributed to this white paper as part of the Autosens conference proceedings. The paper emphasizes the need for the automotive industry to embrace open standards including SYCL in order to be able to meet the needs of the next generation of vehicles. More...

GPUOpen Series: Porting "Detroit: Become Human" from PlayStation to PC

GPU Open LogoThis three part series is a joint collaboration between Quantic Dream and AMD.
Part 1 - Shaders and descriptors
Part 2 - Non-uniform resource indexing
Part 3 - Scalarization, async compute, multithreaded render lists, memory management using Vulkan Memory Allocator (VMA) and more.

Blender Addon Enables Authoring of glTF Assets for Use in Microsoft Flight Simulator

Blender Logo Blender2MSFS - this Blender addon allows you to create 3D assets for Microsoft Flight Simulator (2020). The addon is designed for Blender 2.83, and above. MSFS uses Khronos’ glTF™ 2.0 file format with multiple custom extensions and extras for special material functions. While Blender 2.8x already ships with a glTF exporter, some changes had to be made to the exporter to facilitate some of the used extensions. These changes come fully integrated into this addon, in the form of modified call functions. These functions will make use of the existing Khronos glTF 2.0 exporter, while inserting some of the custom extensions for MSFS. More...

New Vulkan Extensions in AMDs latest Radeon Software Adrenaline driver 20.9.2

GPUOpen LogoAMD released their latest Radeon Software Adrenalin Edition driver (20.9.2), and it includes three notable extensions: VK_KHR_buffer_device_address, VK_EXT_robustness2 and VK_EXT_shader_image_atomic_int64. Download the 20.9.2 Radeon Software Adrenaline Edition driver from More...

NVIDIA Vulkan Beta Driver Moves To 455 Series For Linux

NVIDIA LogoNVIDIA’s Linux Vulkan beta driver build has moved from the 450 series that it’s been on for a while to the current 455 branch. This Vulkan beta driver also adds the new VK_EXT_shader_image_atomic_int64 and VK_KHR_copy_commands2 extensions that were introduced in recent weeks with Vulkan API specification updates. This beta driver also now allows importing external host memory as cached. More...

Intel Releases OpenCL Intercept Layer 3.0

Intel LogoThe Intel OpenCL Intercept Layer is one of the company’s efforts around helping to improve debugging and analyzing of OpenCL application performance. This cross-platform layer intercepts the OpenCL API calls through the OpenCL ICD loader to analyze / debug CL applications. With the OpenCL Intercept Layer 3.0 release, it has full support for tracing all OpenCL 3.0 APIs. The update also allows for tracing more vendor-specific CL extensions, proper handling of extension APIs from multiple platforms, emulated support for unified shader memory via shared virtual memory, and a number of other enhancements including bug fixes and performance improvements. More...

LunarG announces new Vulkan SDKs with SPIRV-reflect and vkconfig improvements

LunarG Logo LunarG released new Windows, Linux, and macOS SDKs for Vulkan header The Vulkan Configurator (vkconfig) has been updated to improve quality and stability and SPIRV-Reflect has been added to the SDK. More...

For the latest Khronos news, visit the news archives


PI Apparel Spotlight: 3D Interoperability & Standardisation
October 15, 2020

PI Apparel LogoOne challenge to deploying 3D at scale lies in its interoperability, or rather, in its lack thereof. Whilst the dream is to create a fully end-to-end digital workflow made up of previously siloed platforms that now seamlessly integrate and communicate, the reality is that 3D tools today don’t play particularly well with others. This Spotlight offers a roadmap to achieving simple integration and subsequent seamless data flow to underpin a future digital supply chain.

Khronos President, Neil Trevett, is a panelist for the session - Interoperability & Standardisation of 3D Publishing to Web.

Please note, delegate registration is only open to valid end user delegates, namely brands, retailers and manufacturers.


CAICS 2020
October 15, 2020

CAICSThis all-Russian conference on artificial intelligence will unite for the first time on one platform the Russian Association of Artificial Intelligence, the Interregional Association for Cognitive Studies, the Russian Neural Networks Society and the Russian Physiological Society.

OpenVX Chair, Kiriti Nagesh Gowda, will present, "Machine Learning and Computer Vision with OpenVX," at the event on October 15.


WCVRI 2020
October 16-18, 2020

WCVRI LogoWith a focus on cutting-edge technologies, WCVRI 2020 strives to present the progress of China’s VR industry to the world and set trends for the development of the global VR industry by facilitating discussions on development paths, showcasing the latest outcomes, promoting the popularization of applications, building a platform for exchange, and amassing a variety of resources, so as to attract high-quality enterprises and projects to Jiangxi Province and cultivate new drivers of economic growth.

Khronos President, Neil Trevett, will present, "Bringing to Life the Dream of Portable Native XR," at the event on October 19.


Linley Fall Processor Conference 2020
October 20-22 & 27-29, 2020

Linley Group LogoThe Linley Fall Processor Conference will feature the same high-quality technical content while enabling attendees from around the world to participate in the forum via live-stream. Presentations will address processors and IP cores for AI applications, embedded, data center, automotive, and communications. Attendees will be able to view live-streamed presentations and interact with the speakers during Q&A, breakout sessions, or scheduled one-on-one meetings.


AutoSens Detroit
October 27-29, 2020
November 18-19, 2020


AutoSens LogoKhronos President, Neil Trevett, will be presenting, Open Interoperability Standards for Automotive Vision and Inferencing Acceleration: An Industry Overview, on October 28th. 


Strategic Marketing USA
November 5-6, 2020

Reuters Events LogoReuters Events: Strategic Marketing USA (Nov 5-6) is uniting the world’s most influential CMOs to set benchmarks, showcase innovation, and map the future of marketing – one where brands are purpose-driven, campaigns are intelligently data-backed, and innovation drives growth.


ISMAR 2020
November 9-13, 2020

ISMAR 2020 LogoIEEE International Symposium on Mixed and Augmented Reality (ISMAR) is the premier conference for Augmented Reality (AR) and Mixed Reality (MR). ISMAR explores the advances in commercial and research activities related to AR and MR and Virtual Reality (VR) by continuing the expansion of its scope over the past several years. The symposium is organized and supported by the IEEE Computer Society, IEEE VGTC and ACM SIGGRAPH.

In 2020, ISMAR will be organized by CIn/UFPE and UFRPE and will be held as a virtual conference.


Web3D 2020
November 9-13, 2020

Web3D Logo25th anniversary of Web3D, don’t miss this opportunity to share and learn real-time interactive 3D. This year’s theme, “3D for a Hyperconnected World”, emphasizes the increasingly global scope and wide impact of high quality 3D content over high speed network.


November 9-19, 2020

SC20 LogoHPC is the underpinning for many of today’s most exciting new research areas, from machine learning to artificial intelligence to quantum computing. Working with science teams across disciplines, we are finding new ways to fight disease, combat poverty and homelessness, grow heartier crops, and better predict natural disasters.

SYCL Chair, Michael Wong and IWOCL's Simon Mcintosh-Smith will host the BOF, "Khronos SYCL 2020 Release and ISO C++ 20 Status and Future Directions."

Early bird registration ends October 19.

XR USA 2020
November 19-20, 2020

Retuers Events LogoXR USA 2020 is your place to finally figure out where and how XR can benefit your business, demonstrate ROI, create compelling content that users love, crack the ideal user experience and quantify at last the benefits of a technology your gut has long known to be great.


IFC Summit 2020
November 20, 2020

IFC Summit LogoTIFCA (The Intl Future Computing Association) and the Khronos Group have created a series of industry questionnaires that will identify ecosystem challenges and the benefits needed to overcome them.  Khronos members who choose to participate will receive a complementary pass to the IFC Summit where these results will be revealed. The questionnaire links and Khronos member code are posted on the IFC Summit event page. Register now, free passes are limited.

Join this year’s IFC Summit and hear from industry leaders such as Khronos’ own, Neil Trevett.

SIGGRAPH Asia 2020
December 4-13, 2020

SIGGRAPH Asia The theme for this year’s SIGGRAPH Asia ‘Driving Diversity’ will take on a new meaning as we give our diverse group of worldwide technical and artistic contributors the opportunity to connect with and inspire new communities.

Stay tuned for more Khronos information for this event.


PAST EVENTS                              

China VR

The OpenXR Tutorial at China VR was a big success. Our thanks go out to Brent Insko (Intel), Ryan Pavlik (Collabora) and Lachlan Ford (Microsoft). The tutorial was attended by more than 3,000 people, and we look forward to future collaborations. Access the presentations here.


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