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Khronie Awards

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Congratulations to all of our Khronie Winners!

The success of Khronos is dependent on the dedication and active contributions of its members. The Khronie Awards are presented to individuals who have made significant contributions in advancing the work of Khronos Working Groups towards their goals. The Khronies are normally presented at Face-to-Face meetings, but in the absence of physical gatherings for most of this year, Khronos is delighted to recognize here online the following members for their incredible hard work.

Ashleigh Miller

Online 2021

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Photo of Ashleigh Miller
Ashleigh has co-chaired the Certification Task Sub Group since April 2020. During that period she has taken charge of several aspects of the Certification Program and documents including Rendered Reference Images according to her expertise as a technical artist. This work has successfully led to the approval of the 3D Commerce Certification program and her participation in the press interview with Martin and Leonard for the 3D Commerce Fireside Chat press event. She is an active leader with the Certification Task Sub Group and regularly presents the state of the TSG to the 3D Commerce Working Group. In addition to all of her work with the TSG, she also contributed and shared her expertise with Image Based Lighting with the PBR Next Task Sub Group of the 3D Formats Working Group and in the lead up to the Sample Viewer project. Her work provided valuable input into that project and set the foundation for lighting that allowed the project to start without a hitch.

Daniel Koch

Online 2021

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Daniel was instrumental in steering the Vulkan Ray Tracing Task Sub Group towards a solution that despite initial development challenges, led to the seamless integration of ray tracing into the existing Vulkan framework. He was diplomatic and pragmatic throughout development, and consistently pushed the group forward. It was his first time chairing a group long-term, and he wore the hat very well. He has also been continuing to drive the improvements to the spec after release. Daniel has been an active participant in the OpenGL and OpenGL ES Working Groups since 2008, and in Vulkan since its birth (GL/ES Convergence and GL Common Task Sub Groups). As TransGaming’s representative, he was a leader in making the GL APIs good porting targets for DX applications, and wrote or was primary contact on many high-profile extensions including ARB_framebuffer_object and ARB_draw_instanced. Since moving to NVIDIA in 2013, he has written or contributed to dozens of Vulkan extensions, and for the past three years has chaired the Vulkan Ray Tracing Task Sub Group, producing a large, complex, and very high profile extension package. In his spare time, he has made a specialty of helping Vulkan spin-off projects find their grooves and become successful, playing important roles in the Vulkan Portability Task Sub Group and the Vulkan SC Working Group. Through it all, he sets the highest standards for himself and for others, showing up week after week, keeping us honest when it comes to following our processes, volunteering for jobs from the trivial or mundane to the nearly impossible, staying focused, and keeping the end goal always in sight – always with a smile and a sense of humor! He is an inspiration to us all.

Alexey Knyazev

Online 2021

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Alexey has been continuously active in the 3D Formats Working Group since 2016. He is a technical expert and has made significant and sustained contributions in several key area. Alexey started and maintains the open-source, glTF validator tool that is central to the robustness of the glTF ecosystem. He has contributed significantly to the KTX 2.0 specification. In addition, Alexey has released lightweight, high-quality KTX 2.0 WebAssembly transcoding tools. He's a named contributor to several glTF extensions: KHR_texture_basisu, KHR_materials_clearcoat, KHR_mesh_quantization, and KHR_xmp_json_ld which exists primarily because of his extensive feedback on the shortcomings of the original XMP extension design. In addition, he has contributed countless glTF specification bug fixes. Alexey has the 3rd highest number of commits to the glTF GitHub repository. Alexey is quiet, humble, and unassuming. He will not expect an award nor would he even think he is deserving. And, indeed, that is why he is.

Eric Chadwick

Online 2021

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Eric Chadwick has made significant contributions to the 3D Commerce and 3D Formats Working Groups, as well as the PBR Next, Asset Creation, and Certification Task Sub Groups. Eric is always there to help, being one of the first to volunteer to produce a model, texture, explanation, or documentation. The work he produces is extremely high-quality, whether it is using the latest PBR Next material with a Tiffany lamp (KTX featured model) or a high-end visualization of a model car on velvet (which was featured with public announcement for PBR Next Phase 1). He has also produced several models for the Certification Task Sub Group that are part of the certification test suite. In addition, he has made substantial and important written contributions to the Asset Creation Guidelines and KTX Artist User documentation.

James Riordon

Online 2021

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For nearly 20 years, James Riordon has been an invaluable resource as a contractor to Khronos. As our web services provider, James ensures that all of Khronos’ digital infrastructure is secure, efficient and running properly. On top of that, he has worn many hats over the years and is always willing to jump in and help as needed. James’ attention to detail, proactiveness, and unwavering commitment have made him a steadfast figure within Khronos. Examples of James going “above and beyond” are numerous. He regularly works all hours of the day and night to provide outstanding, responsive support for our members and team. We are all so grateful to have James as part of the Khronos family.

Bryce Hutchings and Paul Pedriana

Online 2020

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Paul and Bryce's contributions to the OpenXR™ conformance test suite has been central to the Working Group getting the OpenXR standard delivered to the industry! Paul initiated and led the early conformance effort, and when Paul left, Bryce picked up the mantle to coordinate many CTS contributions from multiple members. For their diligent stewardship of the OpenXR conformance effort and significantly outsized contributions, Paul and Bryce richly deserve to be recognized.

Jesse Villarreal

Online 2020

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Jesse has been an integral part of OpenVX™ since its inception and continues to be a vital part of the standard’s ongoing growth. His technical contributions have been essential to enabling OpenVX to deliver widely adopted functionality, both in the core specification and as extensions. Jesse is also an effective OpenVX ambassador, giving numerous talks and OpenVX tutorials. Last but not least, Jesse manages the OpenVX GitHub releases for the Working Group and actively contributes to the sample code base. Thank you for all your efforts, insights and contributions Jesse!

Anastasia Stulova

Online 2020

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Anastasia has a key role in the OpenCL™ ecosystem, determinedly driving the availability and quality of open source compiler tooling such as C++ for OpenCL, and working hard to coordinate the integration and effective support of kernel languages in the OpenCL specifications. As chair of the OpenCL Tooling TSG, Anastasia is a tireless developer advocate and has been instrumental in forging much closer cooperation between Khronos and the clang/LLVM open source community. As well as her coordination skills and technical expertise, Anastasia has also been instrumental in improving OpenCL’s outreach and signposting of technical resources for the OpenCL community, earning the gratitude of both Khronos and developers everywhere.

John Kessenich

Online 2020

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John received a Khronie in 2013 based on his long-time editorship of the GLSL specification, creation of the glslang open-source compiler, and general leadership in the area of shading language design and issues. Since that time, he has made additional contributions which more than merit a second Khronie award. When the Vulkan project started in 2014, he played a critical role in designing the SPIR-V™ shading language IR, and served as lead author and editor of the SPIR-V specifications from then until his withdrawal from Khronos at the end of 2020. As part of the roll-out of Vulkan, his glslang compiler went from being a reference and the basis for a few open-source projects, to being an absolutely critical piece of the software ecosystem around Vulkan; it is used by essentially all Vulkan developers coding in GLSL, and generates nearly all of the SPIR-V executed by the Vulkan conformance test suite. After the launch of Vulkan he continued to participate actively in the Vulkan, OpenGL®, and SPIR-V Working Groups, maintain and edit the GLSL specifications (including major changes to expose Vulkan functionality), and maintain glslang. Since announcing his departure, he has worked diligently to ensure a smooth transition to other leadership. He leaves Khronos with the profound gratitude and best wishes of the Vulkan, OpenGL, and SPIR Working Groups.

Spencer Fricke

Online 2020

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Spencer has been extremely active in the Vulkan® group since 2018. When he and his team began their Khronos involvement, his rush of early contributions might have been mistaken for youthful exuberance and the enthusiasm of someone not yet jaded by the API maintenance process :). However, Spencer’s continued commitment and exceptional productivity belies such cynicism: he has maintained a high level of work on behalf of the Vulkan group, fearlessly tackling and proposing fixes for problems in both the specification and the wider ecosystem that the rest of the Working Group lacked the courage or the energy to confront. His efforts have improved the quality of the Vulkan specification, the conformance tests, and the validation layers, AND he does the legwork to produce solutions that minimize the group overhead. He's punching way above his weight, and doing thankless work that removes distractions from other members with an energy and humility that is inspiring.

Leonard Daly

Online 2020

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Leonard diligently keeps 3D Commerce™ logistics on track and in good shape. Not only does he keep us honest with insight and good humor, he is also the glue between 3D Formats and 3D Commerce ensuring that neither group misses out on industry opportunities. His tireless efforts in co-chairing the Certification TSG has been vital to getting the initiative over the finish line. He brings an energy and passion into day to day activities, and in the multitude of roles he plays for Pervasive 3D and Khronos. His dedication has been inspiring and 3D Commerce just absolutely wouldn't be where we are without him. Thank you Leonard for your assistance to 3D Commerce - we look forward to your continued contributions and onto v2!

Sascha Willem

F2F Barcelona 2020

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Jon Leech

F2F Barcelona 2020

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Frank Brill

F2F Barcelona 2020

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Wasim Abbas

F2F Barcelona 2020

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Daniel Rakos

2019 F2F San Diego

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Patrick Cozzi

2019 F2F San Diego

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Emily Stearns

F2F New Orleans 2019

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Ronan Keryell

F2F New Orleans 2019

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Jeff Gilbert

F2F New Orleans 2019

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Graeme Leese

2018 F2F Budapest


Hans-Kristian Arntzen

2018 F2F Budapest


Radha Giduthuri

2018 F2F Montreal

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Alexander Galazin

2018 F2F Montreal

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Viktor Gyenes

2018 F2F Taipei

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Tobias Hector

2018 F2F Taipei

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Piers Daniell

2017 F2F Chicago

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Andrew Garrard

2017 F2F Chicago

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Pyry Haulos

F2F Amsterdam, NL


Ben Ashbaugh

F2F Amsterdam, NL

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Neil Trevett

F2F Amsterdam, NL

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Karen Ghavam

2017 Vancouver, Canada F2F


John McDonald

2017 Vancouver, Canada F2F


Susheel Gautam

2016 Seoul


Maurice Ribble

2016 Frankfurt Germany


Tom Olson

2016 Frankfurt Germany

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Jeff Bolz

2016 Seattle Washington

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Victor Eruhimov

2015 Houston

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Alon Or-bach

2015 Vancouver

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Erik Noreke

Phoenix Arizona 2014

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Tasneem Brutch

Phoenix Arizona 2014

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Ken Russell

San Antonio 2013

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David Neto

San Antonio 2013

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Jacob Strom

Budapest, Hungary 2013


Graham Sellers

Budapest, Hungary 2013


John Kessenich

Budapest, Hungary 2013

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Maurice Ribble

Vancouver, Canada 2012


Robert Simpson

Vancouver, Canada 2012

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Dr. Liang

Dublin, Ireland 2012


Vladimir Vukicevic

San Jose, USA 2011


Kasai-san

Las Vegas 2010


Elizabeth Riegel

Las Vegas 2010


Mark Callow

Las Vegas 2010


Benj Lipchak

Las Vegas 2010


Yeshwant Muthusamy

Budapest, Hungary 2010

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Barthold Lichtenbelt

Miami, Florida 2010

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Affie Munshi

Windsor, UK 2009


Pasi Keränen

Portland, Oregon 2009


James Riordon

Montreal, Quebec 2008


Matti Paavola

Montreal, Quebec 2008


Tom McReynolds

Montreal, Quebec 2008


Jussi Rasanen

Helsinki, Finland 2008


Tom Longo

Helsinki, Finland 2008


Andrzej Mamona

Helsinki, Finland 2008


Jim Van Welzen

2007 Portugal F2F


Leo Estevez

2007 Portugal F2F


Tom Olson

2007 Portugal F2F

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Shawn Underwood


Nathan Charles

2006 Cambridge F2F


Mark Barnes

2006 Cambridge F2F

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Remi Arnaud

2006 Cambridge F2F

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Ed Plowman

2006 Cambridge F2F


Dan Rice

2006 Tokyo F2F


Brian Murray

2006 Tokyo F2F


Kari Pulli

2006 Tokyo F2F

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